CN104270698B - Multi-functional power amplifier audio frequency apparatus and its method - Google Patents
Multi-functional power amplifier audio frequency apparatus and its method Download PDFInfo
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- CN104270698B CN104270698B CN201410480339.6A CN201410480339A CN104270698B CN 104270698 B CN104270698 B CN 104270698B CN 201410480339 A CN201410480339 A CN 201410480339A CN 104270698 B CN104270698 B CN 104270698B
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Abstract
A kind of multi-functional power amplifier audio frequency apparatus and its method, including CSR8635 Bluetooth chips, the RF pins being identified as of described CSR8635 Bluetooth chips are connected with Bluetooth antenna device, described CSR8635 Bluetooth chips can be connected by Bluetooth antenna device with the terminal with bluetooth module, the 16 right passage positive output end of being identified as of AC1096 decoding chips is connected with the R channel positive pole of loudspeaker, the 14 right passage negative output terminal of being identified as of described AC1096 decoding chips is connected with the R channel negative pole of loudspeaker, and associated methods avoid the defects of existing versatility for audio frequency apparatus is with being very poor for compatibility.
Description
Technical field
The invention belongs to audio frequency apparatus technical field, and in particular to a kind of multi-functional power amplifier audio frequency apparatus and its method.
Background technology
Existing power amplifier audio frequency apparatus is essentially all that the power amplifier for belonging to simple function influences, such as can only individually be played
The audio file that is carried on mp3, individually play the terminal as notebook computer or mobile phone with wireless blue tooth module
The audio stream sent, such mode are very poor for the versatility and compatibility of audio frequency apparatus.
The content of the invention
It is an object of the invention to provide a kind of multi-functional power amplifier audio frequency apparatus and its method, including CSR8635 Bluetooth chips,
The RF pins being identified as of described CSR8635 Bluetooth chips are connected with Bluetooth antenna device, described CSR8635 bluetooth cores
Piece can be connected by Bluetooth antenna device with the terminal with bluetooth module, and described Bluetooth antenna device includes bluetooth day
Line, described Bluetooth antenna, a pole of the first electric capacity, a pole of a pole of the first inductance and the second inductance are connected, and second
The input of another pole of inductance, a pole of the second electric capacity and bandpass filter is connected, the earth terminal of bandpass filter,
Another pole of one electric capacity, another pole of the second electric capacity and the another of the first inductance are extremely grounded, the output end of bandpass filter
The 12 RF pins of being identified as with CSR8635 Bluetooth chips are connected, CSR8635 Bluetooth chips be identified as be used for loudspeaker
The analog signal output pin of R channel negative pole be connected with 12 GPIO pin of being identified as of AC1096 decoding chips,
The analog signal output pin of the R channel positive pole for loudspeaker for being identified as 7 of CSR8635 Bluetooth chips solves with AC1096
13 GPIO pin of being identified as of code chip is connected, the L channel for loudspeaker for being identified as 9 of CSR8635 Bluetooth chips
The analog signal output pin of negative pole is connected with 10 GPIO pin of being identified as of AC1096 decoding chips, CSR8635 bluetooths
Mark of the analog signal output pin of the L channel negative pole for loudspeaker for being identified as 10 of chip with AC1096 decoding chips
Know and be connected for 11 GPIO pin, SPI MOSI interfaces are connected with the 30 PIO pins of being identified as of CSR8635 Bluetooth chips
Connect, SPI MISO interfaces are connected with the 28 PIO pins of being identified as of CSR8635 Bluetooth chips, and SPI CS interfaces are same
The 24 PIO pins of being identified as of CSR8635 Bluetooth chips are connected, the mark of SPI CLK interfaces with CSR8635 Bluetooth chips
It is connected for 34 PIO pins, described SPI turns spi bus interface chip with usb bus and is connected, described AC1096 solutions
The 24 USBDM pins 61 of being identified as of code chip are connected with the data wire negative pole 62 of MP3 USB interface, described AC1096
The 25 USBDM pins 63 of being identified as of decoding chip are connected with the data wire positive pole 64 of MP3 USB interface, described
AC1096 decoding chips are identified as the mark of 4 L channel digital-to-analogue inverted signal pin with mix3018 audio-frequency power amplifiers
It is connected for 7 left-channel signal input pin, the R channel digital-to-analogue conversion for being identified as 5 of described AC1096 decoding chips
Signal pins are connected with the right channel signal input pin for being identified as 10 of mix3018 audio-frequency power amplifiers, described
The 1 left passage positive output end of being identified as of AC1096 decoding chips is connected with the L channel positive pole of loudspeaker, described
The 1 left passage positive output end of being identified as of AC1096 decoding chips is connected with the L channel positive pole of loudspeaker, described
The 3 left passage negative output terminal of being identified as of AC1096 decoding chips is connected with the L channel negative pole of loudspeaker, described
The 16 right passage positive output end of being identified as of AC1096 decoding chips is connected with the R channel positive pole of loudspeaker, described
The 14 right passage negative output terminal of being identified as of AC1096 decoding chips is connected with the R channel negative pole of loudspeaker, and associated methods
The defects of being very poor for avoiding the existing versatility for audio frequency apparatus and compatibility.
In order to overcome deficiency of the prior art, the invention provides a kind of multi-functional power amplifier audio frequency apparatus and its method
Solution, it is specific as follows：
A kind of multi-functional power amplifier audio frequency apparatus, including CSR8635 Bluetooth chips 1, described CSR8635 Bluetooth chips 1
The 12 RF pins 2 of being identified as be connected with Bluetooth antenna device, described CSR8635 Bluetooth chips 1 are filled by Bluetooth antenna
Putting can be connected with the terminal with bluetooth module, and described Bluetooth antenna device includes Bluetooth antenna 3, described bluetooth day
Line 3, a pole of the first electric capacity 4, a pole of a pole of the first inductance 5 and the second inductance 6 are connected, the second inductance 6 it is another
The input of pole, a pole of the second electric capacity 7 and bandpass filter 8 is connected, the earth terminal of bandpass filter 8, the first electric capacity 4
Another pole, the second electric capacity 7 another pole and the another of the first inductance 5 be extremely grounded, the output end of bandpass filter 8 is same
The 12 RF pins 2 of being identified as of CSR8635 Bluetooth chips 1 are connected, and being identified as CSR8635 Bluetooth chips 16 is used to raising one's voice
The analog signal output pin 10 of the R channel negative pole of device with AC1096 decoding chips 9 be identified as 12 GPIO pin 11 be connected
Connect, the analog signal output pin 12 of the R channel positive pole for loudspeaker for being identified as 7 of CSR8635 Bluetooth chips 1 is same
13 GPIO pin 13 of being identified as of AC1096 decoding chips 9 is connected, and being identified as CSR8635 Bluetooth chips 19 is used to raising
GPIO pin 15 phase that is identified as 10 of the analog signal output pin 14 of the L channel negative pole of sound device with AC1096 decoding chips 9
Connection, the analog signal output pin 16 of the L channel negative pole for loudspeaker for being identified as 10 of CSR8635 Bluetooth chips 1 are same
11 GPIO pin 17 of being identified as of AC1096 decoding chips 9 is connected, and SPI18 MOSI interfaces 19 are the same as CSR8635 bluetooth cores
The 30 PIO pins 20 of being identified as of piece 1 are connected, and SPI21 MISO interfaces 22 are identified as 28 with CSR8635 Bluetooth chips 1
PIO pins 23 be connected, SPI21 CS interfaces 24 are connected with the 24 PIO pins 25 of being identified as of CSR8635 Bluetooth chips 1
Connect, SPI21 CLK interfaces 26 are connected with the 34 PIO pins 27 of being identified as of CSR8635 Bluetooth chips 1, described SPI21
Turn spi bus interface chip 28 with usb bus to be connected, the USBDM pins for being identified as 24 of described AC1096 decoding chips
61 are connected with the data wire negative pole 62 of MP3 USB interface, and 25 USBDM of being identified as of described AC1096 decoding chips draws
Pin 63 is connected with the data wire positive pole 64 of MP3 USB interface, the L channel for being identified as 4 of described AC1096 decoding chips 9
Digital-to-analogue inverted signal pin 29 is the same as the left-channel signal input pin 31 for being identified as 7 of mix3018 audio-frequency power amplifiers 30
It is connected, described AC1096 decoding chips 9 are identified as 5 R channel digital-to-analogue inverted signal pin 32 with mix3018 audios
The right channel signal input pin 33 for being identified as 10 of power amplifier 30 is connected, described AC1096 decoding chips 9
1 left passage positive output end 34 is identified as with the L channel positive pole 35 of loudspeaker to be connected, described AC1096 decoding chips 9
3 left passage negative output terminal 36 is identified as with the L channel negative pole 37 of loudspeaker to be connected, described AC1096 decoding chips 9
It is identified as 16 right passage positive output end 38 with the R channel positive pole 39 of loudspeaker to be connected, described AC1096 decoding chips 9
The 14 right passage negative output terminal 40 of being identified as be connected with the R channel negative pole 41 of loudspeaker.
Described AC1096 decoding chips 9 are identified as 4 L channel digital-to-analogue inverted signal pin 29 with mix3018 audios
The mode being connected of the left-channel signal input pin 31 for being identified as 7 of power amplifier 30 is AC1096 decoding chips 9
The L channel digital-to-analogue inverted signal pin 29 for being identified as 4 passes sequentially through the 3rd electric capacity 42 and the 3rd inductance 43 with mix3018 audios
The 7 left-channel signal input pin 31 of being identified as of power amplifier 30 is connected.
Described AC1096 decoding chips 9 are identified as 5 R channel digital-to-analogue inverted signal pin 32 with mix3018 audios
The mode being connected of the right channel signal input pin 33 for being identified as 10 of power amplifier 30 is AC1096 decoding chips 9
The R channel digital-to-analogue inverted signal pin 32 for being identified as 5 passes sequentially through the 4th electric capacity 44 and the 4th inductance 45 with mix3018 audios
The 10 right channel signal input pin 33 of being identified as of power amplifier 30 is connected.
The method of described multi-functional power amplifier audio frequency apparatus, step are as follows：
Step 1：After CSR8635 Bluetooth chips are connected by Bluetooth antenna device with the terminal with bluetooth module,
If the terminal-pair CSR8635 Bluetooth chips with bluetooth module send voice data stream, CSR8635 Bluetooth chips pass through
CSR8635 Bluetooth chips be identified as 12 RF pins receive the voice data stream after, then respectively in voice data stream
The analog signal of R channel negative pole, the analog signal of R channel positive pole in voice data stream, the left sound in voice data stream
The analog signal of L channel positive pole in the analog signal and voice data stream of road negative pole is respectively via CSR8635 Bluetooth chips
The analog signal output pin of the R channel negative pole for loudspeaker for being identified as 6, CSR8635 Bluetooth chips be identified as 7
The analog signal output pin of the R channel positive pole for loudspeaker, CSR8635 Bluetooth chips be identified as be used to raise one's voice
The analog signal output pin of the L channel negative pole of device and the left side for loudspeaker for being identified as 10 of CSR8635 Bluetooth chips
The analog signal output pin of sound channel negative pole is sent in AC1096 decoding chips；
Step 2：Analog signal and voice data stream of the AC1096 decoding chips the R channel negative pole in voice data stream
In the analog signal of R channel positive pole pass through the 5 R channel digital-to-analogues of being identified as of AC1096 decoding chips under TF card mode and turn
Change signal pins to be delivered in mix3018 audio-frequency power amplifiers, and the simulation of L channel negative pole is believed under TF card mode
Number and L channel positive pole the analog signal L channel digital-to-analogue inverted signal pin for being identified as 4 that passes through AC1096 decoding chips
It is delivered in mix3018 audio-frequency power amplifiers；
Step 3：Mix3018 audio-frequency power amplifiers receive analog signal and the right side of the R channel negative pole under TF card mode
The analog signal of L channel negative pole under the analog signal and TF card mode of sound channel positive pole and the simulation letter of L channel positive pole
After number, by mix3018 audio-frequency power amplifiers to the analog signal for receiving the R channel negative pole under TF card mode and right sound
The analog signal of L channel negative pole under the analog signal and TF card mode of road positive pole and the analog signal of L channel positive pole
After carrying out power amplification, then the analog signal of R channel negative pole after power amplification, the analog signal of R channel positive pole, Zuo Sheng
The analog signal of road negative pole and the analog signal of L channel positive pole are separately sent to the R channel negative pole of loudspeaker, loudspeaker
The L channel positive pole of R channel positive pole, the L channel negative pole of loudspeaker and loudspeaker plays out；
Step 4：When MP3 sends voice data stream by USB interface to AC1096 decoding chips, AC1096 decoding chips
The analog signal of the R channel positive pole in the analog signal and voice data stream of the R channel negative pole in voice data stream in TF
Mix3018 audios are delivered to by the 5 R channel digital-to-analogue inverted signal pin of being identified as of AC1096 decoding chips under mode card
In power amplifier, and the analog signal of L channel negative pole and the analog signal of L channel positive pole are led under TF card mode
The 4 L channel digital-to-analogue inverted signal pin of being identified as crossing AC1096 decoding chips is delivered to mix3018 audio-frequency power amplifiers
In；
Step 5：Mix3018 audio-frequency power amplifiers receive analog signal and the right side of the R channel negative pole under TF card mode
The analog signal of L channel negative pole under the analog signal and TF card mode of sound channel positive pole and the simulation letter of L channel positive pole
After number, by mix3018 audio-frequency power amplifiers to the analog signal for receiving the R channel negative pole under TF card mode and right sound
The analog signal of L channel negative pole under the analog signal and TF card mode of road positive pole and the analog signal of L channel positive pole
After carrying out power amplification, then the analog signal of R channel negative pole after power amplification, the analog signal of R channel positive pole, Zuo Sheng
The analog signal of road negative pole and the analog signal of L channel positive pole are separately sent to the R channel negative pole of loudspeaker, loudspeaker
The L channel positive pole of R channel positive pole, the L channel negative pole of loudspeaker and loudspeaker is played out using the above-mentioned side of the present invention
Case, can be achieved with playing the audio file and can carried on mp3 play with wireless blue tooth module such as notebook computer
Or the audio stream that terminal as mobile phone is sent, versatility and compatibility greatly enhance.
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of the multi-functional power amplifier audio frequency apparatus of the present invention.
Embodiment
The content of the invention is described further below in conjunction with the accompanying drawings：
Shown in reference picture 1, multi-functional power amplifier audio frequency apparatus, including CSR8635 Bluetooth chips 1, described CSR8635 are blue
The 12 RF pins 2 of being identified as of tooth chip 1 are connected with Bluetooth antenna device, and described CSR8635 Bluetooth chips 1 pass through bluetooth
Antenna assembly can be connected with the terminal with bluetooth module, and described Bluetooth antenna device includes Bluetooth antenna 3, described
Bluetooth antenna 3, a pole of the first electric capacity 4, a pole of a pole of the first inductance 5 and the second inductance 6 are connected, the second inductance 6
Another pole, a pole of the second electric capacity 7 and the input of bandpass filter 8 be connected, the earth terminal of bandpass filter 8,
Another pole of one electric capacity 4, another pole of the second electric capacity 7 and the another of the first inductance 5 are extremely grounded, bandpass filter 8 it is defeated
The 12 RF pins 2 of being identified as going out end with CSR8635 Bluetooth chips 1 are connected, the use for being identified as 6 of CSR8635 Bluetooth chips 1
In loudspeaker R channel negative pole analog signal output pin 10 with AC1096 decoding chips 9 the GPIO pin for being identified as 12
11 are connected, the analog signal output pin of the R channel positive pole for loudspeaker for being identified as 7 of CSR8635 Bluetooth chips 1
12 are connected with 13 GPIO pins 13 of being identified as of AC1096 decoding chips 9, the use for being identified as 9 of CSR8635 Bluetooth chips 1
In loudspeaker L channel negative pole analog signal output pin 14 with AC1096 decoding chips 9 the GPIO pin for being identified as 10
15 are connected, the analog signal output pin of the L channel negative pole for loudspeaker for being identified as 10 of CSR8635 Bluetooth chips 1
16 are connected with 11 GPIO pins 17 of being identified as of AC1096 decoding chips 9, and SPI18 MOSI interfaces 19 are blue with CSR8635
The 30 PIO pins 20 of being identified as of tooth chip 1 are connected, the mark of SPI21 MISO interfaces 22 with CSR8635 Bluetooth chips 1
It is connected for 28 PIO pins 23, the PIO pins 25 for being identified as 24 of SPI21 CS interfaces 24 with CSR8635 Bluetooth chips 1
It is connected, SPI21 CLK interfaces 26 are connected with the 34 PIO pins 27 of being identified as of CSR8635 Bluetooth chips 1, described
SPI21 turns spi bus interface chip 28 with usb bus and is connected, by the USB interface of external equipment just can and external equipment
Enter row data communication and even import required functional module to realize the purpose of expanding function, described AC1096 decoding chips
The 24 USBDM pins 61 of being identified as be connected with the data wire negative pole 62 of MP3 USB interface, described AC1096 decoding cores
The 25 USBDM pins 63 of being identified as of piece are connected with the data wire positive pole 64 of MP3 USB interface, described AC1096 decodings
The 4 L channel digital-to-analogue inverted signal pin 29 of being identified as of chip 9 is identified as 7 with mix3018 audio-frequency power amplifiers 30
Left-channel signal input pin 31 is connected, the R channel digital-to-analogue conversion letter for being identified as 5 of described AC1096 decoding chips 9
Number being connected with the right channel signal input pin 33 for being identified as 10 of mix3018 audio-frequency power amplifiers 30 of pin 32, institute
The 1 left passage positive output end 34 of being identified as the AC1096 decoding chips 9 stated is connected with the L channel positive pole 35 of loudspeaker, institute
The 3 left passage negative output terminal 36 of being identified as the AC1096 decoding chips 9 stated is connected with the L channel negative pole 37 of loudspeaker, institute
The 16 right passage positive output end 38 of being identified as the AC1096 decoding chips 9 stated is connected with the R channel positive pole 39 of loudspeaker,
The 14 right passage negative output terminal 40 of being identified as of described AC1096 decoding chips 9 is connected with the R channel negative pole 41 of loudspeaker
Connect, the effect of the second described inductance 6 is for carrying out fault test, and when there is Receiver Problem, the second inductance 6 is taken apart
With regard to the buffer action for the front and rear sectionalization test that can play Bluetooth antenna device, the first described electric capacity and the first inductance constitute filter
Wave circuit, can play a part of filtering to the audio signal received from Bluetooth antenna, and the second described electric capacity also constitutes
Filter circuit, filtering further can be played a part of to the audio signal received from Bluetooth antenna.Described AC1096 solutions
The 4 L channel digital-to-analogue inverted signal pin 29 of being identified as of code chip 9 is identified as 7 with mix3018 audio-frequency power amplifiers 30
The mode being connected of left-channel signal input pin 31 turn for the 4 L channel digital-to-analogue of being identified as of AC1096 decoding chips 9
Change signal pins 29 pass sequentially through the 3rd electric capacity 42 and the 3rd inductance 43 is identified as 7 with mix3018 audio-frequency power amplifiers 30
Left-channel signal input pin 31 be connected, the 3rd described electric capacity and the 3rd inductance are to be used to filter make it that signal is more clear
Chu.Described AC1096 decoding chips 9 are identified as 5 R channel digital-to-analogue inverted signal pin 32 with mix3018 audio work(
The mode being connected of the right channel signal input pin 33 for being identified as 10 of rate amplifier 30 is the mark of AC1096 decoding chips 9
Know and pass sequentially through the 4th electric capacity 44 and the 4th inductance 45 with mix3018 audio work(for 5 R channel digital-to-analogue inverted signal pin 32
The 10 right channel signal input pin 33 of being identified as of rate amplifier 30 is connected, and the 4th described electric capacity and the 4th inductance are to use
Make it that signal is clearer in filtering.
The method of described multi-functional power amplifier audio frequency apparatus, step are as follows：
Step 1：After CSR8635 Bluetooth chips are connected by Bluetooth antenna device with the terminal with bluetooth module,
If the terminal-pair CSR8635 Bluetooth chips with bluetooth module send voice data stream, CSR8635 Bluetooth chips pass through
CSR8635 Bluetooth chips be identified as 12 RF pins receive the voice data stream after, then respectively in voice data stream
The analog signal of R channel negative pole, the analog signal of R channel positive pole in voice data stream, the left sound in voice data stream
The analog signal of L channel positive pole in the analog signal and voice data stream of road negative pole is respectively via CSR8635 Bluetooth chips
The analog signal output pin of the R channel negative pole for loudspeaker for being identified as 6, CSR8635 Bluetooth chips be identified as 7
The analog signal output pin of the R channel positive pole for loudspeaker, CSR8635 Bluetooth chips be identified as be used to raise one's voice
The analog signal output pin of the L channel negative pole of device and the left side for loudspeaker for being identified as 10 of CSR8635 Bluetooth chips
The analog signal output pin of sound channel negative pole is sent in AC1096 decoding chips；
Step 2：Analog signal and voice data stream of the AC1096 decoding chips the R channel negative pole in voice data stream
In the analog signal of R channel positive pole pass through the 5 R channel digital-to-analogues of being identified as of AC1096 decoding chips under TF card mode and turn
Change signal pins to be delivered in mix3018 audio-frequency power amplifiers, and the simulation of L channel negative pole is believed under TF card mode
Number and L channel positive pole the analog signal L channel digital-to-analogue inverted signal pin for being identified as 4 that passes through AC1096 decoding chips
It is delivered in mix3018 audio-frequency power amplifiers；
Step 3：Mix3018 audio-frequency power amplifiers receive analog signal and the right side of the R channel negative pole under TF card mode
The analog signal of L channel negative pole under the analog signal and TF card mode of sound channel positive pole and the simulation letter of L channel positive pole
After number, by mix3018 audio-frequency power amplifiers to the analog signal for receiving the R channel negative pole under TF card mode and right sound
The analog signal of L channel negative pole under the analog signal and TF card mode of road positive pole and the analog signal of L channel positive pole
After carrying out power amplification, then the analog signal of R channel negative pole after power amplification, the analog signal of R channel positive pole, Zuo Sheng
The analog signal of road negative pole and the analog signal of L channel positive pole are separately sent to the R channel negative pole of loudspeaker, loudspeaker
The L channel positive pole of R channel positive pole, the L channel negative pole of loudspeaker and loudspeaker plays out；
Step 4：When MP3 sends voice data stream by USB interface to AC1096 decoding chips, AC1096 decoding chips
The analog signal of the R channel positive pole in the analog signal and voice data stream of the R channel negative pole in voice data stream in TF
Mix3018 audios are delivered to by the 5 R channel digital-to-analogue inverted signal pin of being identified as of AC1096 decoding chips under mode card
In power amplifier, and the analog signal of L channel negative pole and the analog signal of L channel positive pole are led under TF card mode
The 4 L channel digital-to-analogue inverted signal pin of being identified as crossing AC1096 decoding chips is delivered to mix3018 audio-frequency power amplifiers
In；
Step 5：Mix3018 audio-frequency power amplifiers receive analog signal and the right side of the R channel negative pole under TF card mode
The analog signal of L channel negative pole under the analog signal and TF card mode of sound channel positive pole and the simulation letter of L channel positive pole
After number, by mix3018 audio-frequency power amplifiers to the analog signal for receiving the R channel negative pole under TF card mode and right sound
The analog signal of L channel negative pole under the analog signal and TF card mode of road positive pole and the analog signal of L channel positive pole
After carrying out power amplification, then the analog signal of R channel negative pole after power amplification, the analog signal of R channel positive pole, Zuo Sheng
The analog signal of road negative pole and the analog signal of L channel positive pole are separately sent to the R channel negative pole of loudspeaker, loudspeaker
The L channel positive pole of R channel positive pole, the L channel negative pole of loudspeaker and loudspeaker plays out.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, according to the technical spirit of the present invention,
Within the spirit and principles in the present invention, any simple modification, equivalent substitution and improvement for being made to above example etc., still
Belong within the protection domain of technical solution of the present invention.
Claims (2)
1. a kind of multi-functional power amplifier audio frequency apparatus, it is characterised in that including CSR8635 Bluetooth chips, described CSR8635 is blue
The 12 RF pins of being identified as of tooth chip are connected with Bluetooth antenna device, and described CSR8635 Bluetooth chips pass through bluetooth day
Line apparatus can be connected with the terminal with bluetooth module, and described Bluetooth antenna device includes Bluetooth antenna, described indigo plant
Tooth antenna, a pole of the first electric capacity, a pole of a pole of the first inductance and the second inductance are connected, the second inductance it is another
The input of pole, a pole of the second electric capacity and bandpass filter is connected, the earth terminal of bandpass filter, the first electric capacity it is another
One pole, another pole of the second electric capacity and the another of the first inductance are extremely grounded, and the output end of bandpass filter is blue with CSR8635
The 12 RF pins of being identified as of tooth chip are connected, and the R channel for loudspeaker being identified as of CSR8635 Bluetooth chips is born
The analog signal output pin of pole is connected with 12 GPIO pin of being identified as of AC1096 decoding chips, CSR8635 bluetooth cores
Analog signal output pin being identified as with AC1096 decoding chips of the R channel positive pole for loudspeaker for being identified as 7 of piece
13 GPIO pin is connected, the analog signal of the L channel negative pole for loudspeaker for being identified as 9 of CSR8635 Bluetooth chips
Output pin is connected with 10 GPIO pin of being identified as of AC1096 decoding chips, and CSR8635 Bluetooth chips are identified as 10
The analog signal output pin of the L channel negative pole for loudspeaker draw with 11 GPIO of being identified as of AC1096 decoding chips
Pin is connected, and SPI MOSI interfaces are connected with the 30 PIO pins of being identified as of CSR8635 Bluetooth chips, and SPI MISO connects
Mouthful it is connected with the 28 PIO pins of being identified as of CSR8635 Bluetooth chips, the mark of SPI CS interfaces with CSR8635 Bluetooth chips
To know and be connected for 24 PIO pins, SPI CLK interfaces are connected with the 34 PIO pins of being identified as of CSR8635 Bluetooth chips,
Described SPI turns spi bus interface chip with usb bus and is connected, and described AC1096 decoding chips are identified as 24
USBDM pins are connected with the data wire negative pole of MP3 USB interface, and described AC1096 decoding chips are identified as 25
USBDM pins are connected with the data wire positive pole of MP3 USB interface, and described AC1096 decoding chips are identified as 25
USBDM pins are connected with the data wire positive pole of MP3 USB interface, the left sound for being identified as 4 of described AC1096 decoding chips
Road digital-to-analogue inverted signal pin is connected with the left-channel signal input pin for being identified as 7 of mix3018 audio-frequency power amplifiers
Connect, described AC1096 decoding chips are identified as 5 R channel digital-to-analogue inverted signal pin with mix3018 Audio power amplifiers
The right channel signal input pin for being identified as 10 of device is connected, and 1 left side of being identified as of described AC1096 decoding chips leads to
Road positive output end is connected with the L channel positive pole of loudspeaker, and the 3 left passage of being identified as of described AC1096 decoding chips is born
Output end is connected with the L channel negative pole of loudspeaker, the right passage positive output for being identified as 16 of described AC1096 decoding chips
Hold and be connected with the R channel positive pole of loudspeaker, described AC1096 decoding chips be identified as 14 right passage negative output terminal it is same
The R channel negative pole of loudspeaker is connected；
The 4 L channel digital-to-analogue inverted signal pin of being identified as of described AC1096 decoding chips is put with mix3018 audio powers
The mode being connected of the left-channel signal input pin for being identified as 7 of big device is the left side for being identified as 4 of AC1096 decoding chips
Sound channel digital-to-analogue inverted signal pin passes sequentially through the 3rd electric capacity and the 3rd inductance being identified as with mix3018 audio-frequency power amplifiers
7 left-channel signal input pin is connected；
The 5 R channel digital-to-analogue inverted signal pin of being identified as of described AC1096 decoding chips is put with mix3018 audio powers
The mode being connected of the right channel signal input pin for being identified as 10 of big device is the right side for being identified as 5 of AC1096 decoding chips
Sound channel digital-to-analogue inverted signal pin passes sequentially through the 4th electric capacity and the 4th inductance being identified as with mix3018 audio-frequency power amplifiers
10 right channel signal input pin is connected.
2. the method for multi-functional power amplifier audio frequency apparatus according to claim 1, it is characterised in that step is as follows：
Step 1：After CSR8635 Bluetooth chips are connected by Bluetooth antenna device with the terminal with bluetooth module, if
Terminal-pair CSR8635 Bluetooth chips with bluetooth module send voice data stream, and CSR8635 Bluetooth chips pass through CSR8635
Bluetooth chip be identified as 12 RF pins receive the voice data stream after, then respectively the R channel in voice data stream
The analog signal of negative pole, the analog signal of the R channel positive pole in voice data stream, L channel negative pole in voice data stream
The analog signal of L channel positive pole in analog signal and voice data stream being identified as via CSR8635 Bluetooth chips respectively
The analog signal output pin of the 6 R channel negative pole for loudspeaker, being identified as CSR8635 Bluetooth chips 7 are used to raising
The analog signal output pin of the R channel positive pole of sound device, the left sound for loudspeaker being identified as of CSR8635 Bluetooth chips
The analog signal output pin of road negative pole and the L channel negative pole for loudspeaker for being identified as 10 of CSR8635 Bluetooth chips
Analog signal output pin be sent in AC1096 decoding chips；
Step 2：In analog signal and voice data stream of the AC1096 decoding chips the R channel negative pole in voice data stream
The analog signal of R channel positive pole passes through the R channel digital-to-analogue conversion letter for being identified as 5 of AC1096 decoding chips under TF card mode
Number pin is delivered in mix3018 audio-frequency power amplifiers, and under TF card mode the analog signal of L channel negative pole with
And the L channel digital-to-analogue inverted signal pin transmission for being identified as 4 that the analog signal of L channel positive pole passes through AC1096 decoding chips
Into mix3018 audio-frequency power amplifiers；
Step 3：Mix3018 audio-frequency power amplifiers receive the analog signal and R channel of the R channel negative pole under TF card mode
After the analog signal of L channel negative pole under the analog signal and TF card mode of positive pole and the analog signal of L channel positive pole,
By mix3018 audio-frequency power amplifiers to receiving the analog signal and R channel positive pole of the R channel negative pole under TF card mode
Analog signal and TF card mode under L channel negative pole analog signal and L channel positive pole analog signal carry out work(
After rate amplification, then the analog signal of R channel negative pole after power amplification, the analog signal of R channel positive pole, L channel negative pole
Analog signal and the analog signal of L channel positive pole be separately sent to the R channel negative pole of loudspeaker, the R channel of loudspeaker
The L channel positive pole of positive pole, the L channel negative pole of loudspeaker and loudspeaker plays out；
Step 4：When MP3 sends voice data stream by USB interface to AC1096 decoding chips, AC1096 decoding chips are sound
The analog signal of R channel positive pole in the analog signal and voice data stream of R channel negative pole in frequency data stream is in TF card mould
Mix3018 audio powers are delivered to by the 5 R channel digital-to-analogue inverted signal pin of being identified as of AC1096 decoding chips under formula
In amplifier, and the analog signal of L channel negative pole and the analog signal of L channel positive pole are passed through under TF card mode
The 4 L channel digital-to-analogue inverted signal pin of being identified as of AC1096 decoding chips is delivered in mix3018 audio-frequency power amplifiers；
Step 5：Mix3018 audio-frequency power amplifiers receive the analog signal and R channel of the R channel negative pole under TF card mode
After the analog signal of L channel negative pole under the analog signal and TF card mode of positive pole and the analog signal of L channel positive pole,
By mix3018 audio-frequency power amplifiers to receiving the analog signal and R channel positive pole of the R channel negative pole under TF card mode
Analog signal and TF card mode under L channel negative pole analog signal and L channel positive pole analog signal carry out work(
After rate amplification, then the analog signal of R channel negative pole after power amplification, the analog signal of R channel positive pole, L channel negative pole
Analog signal and the analog signal of L channel positive pole be separately sent to the R channel negative pole of loudspeaker, the R channel of loudspeaker
The L channel positive pole of positive pole, the L channel negative pole of loudspeaker and loudspeaker plays out.
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| CN201410480339.6A CN104270698B (en) | 2014-09-18 | 2014-09-18 | Multi-functional power amplifier audio frequency apparatus and its method |
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| CN201410480339.6A CN104270698B (en) | 2014-09-18 | 2014-09-18 | Multi-functional power amplifier audio frequency apparatus and its method |
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| CN104270698B true CN104270698B (en) | 2017-11-24 |
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| CN106027125A (en) * | 2016-08-01 | 2016-10-12 | 合肥佳瑞林电子技术有限公司 | Vehicle-mounted Bluetooth module |
| CN109729486B (en) * | 2017-10-30 | 2020-08-21 | 无锡华润矽科微电子有限公司 | Packaging structure, packaging method and wiring structure for improving output power of audio power amplifier |
| CN110460950A (en) * | 2019-08-15 | 2019-11-15 | 杜晨曦 | A kind of bluetooth headset line Balanced Audio output system and its application method |
| CN113852894B (en) * | 2021-08-11 | 2023-08-29 | 安克创新科技股份有限公司 | earphone |
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| CN2904519Y (en) * | 2006-01-20 | 2007-05-23 | 广州矽金塔电子有限公司 | Multifunctional blue tooth loudspeaker box |
| CN203574847U (en) * | 2013-12-03 | 2014-04-30 | 宁波日兴电子有限公司 | Portable multifunctional sound system |
| CN203990995U (en) * | 2014-04-03 | 2014-12-10 | 广东华兴玻璃股份有限公司 | A kind of desulfurization atomizing lance |
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| US20090154740A1 (en) * | 2007-12-14 | 2009-06-18 | Paul Regen | Personal Speaker System with Detachable Control Module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2904519Y (en) * | 2006-01-20 | 2007-05-23 | 广州矽金塔电子有限公司 | Multifunctional blue tooth loudspeaker box |
| CN203574847U (en) * | 2013-12-03 | 2014-04-30 | 宁波日兴电子有限公司 | Portable multifunctional sound system |
| CN203990995U (en) * | 2014-04-03 | 2014-12-10 | 广东华兴玻璃股份有限公司 | A kind of desulfurization atomizing lance |
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