JPS54156462A - Analog digital converter - Google Patents

Analog digital converter

Info

Publication number
JPS54156462A
JPS54156462A JP6421878A JP6421878A JPS54156462A JP S54156462 A JPS54156462 A JP S54156462A JP 6421878 A JP6421878 A JP 6421878A JP 6421878 A JP6421878 A JP 6421878A JP S54156462 A JPS54156462 A JP S54156462A
Authority
JP
Japan
Prior art keywords
circuit
conversion
bit
comparison
latch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6421878A
Other languages
Japanese (ja)
Inventor
Toshiyuki Katagiri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP6421878A priority Critical patent/JPS54156462A/en
Publication of JPS54156462A publication Critical patent/JPS54156462A/en
Pending legal-status Critical Current

Links

Landscapes

  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE: To establish the AD conversion circuit having wide frequency band without using differential amplifiers, by constituting the converter with the first comparison circuit inputting analog signal and the reference voltage, latch circuit, a pair of DA conversion circuits, comparison voltage generation circuit, and second comparison circuit.
CONSTITUTION: The analog input signal 10a is inputted at the sample hold circuit 11, the signal 11 is outputted, and the upper rank 3-bit is in AD conversion with the first comparison circuit 121, and the AD conversion circuit 12 including the latch 122. The output of the latch 122 is inputted to the 3-bit DA conversion circuits 31 of a pair and the DA conversion circuit of 3-bit +1, and the signals 31a and 32a are outputted from the circuits 31 and 32. The signals 31a and 32a are compared for the voltage at the comparison voltage production circuit 33, this output is inputted to the Ad conversion circuit 34 including the second comparison circuit 341 and latch 342 to output the signal 34a of lower rank 3-bit. Thus, the digital signal of 6-bit is obtained and the differential amplifier of 8 times is not used at broader frequency range. The AD conversion circuit suitable for the receiver in which smaller TV picture can be inserted in TV picture.
COPYRIGHT: (C)1979,JPO&Japio
JP6421878A 1978-05-31 1978-05-31 Analog digital converter Pending JPS54156462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6421878A JPS54156462A (en) 1978-05-31 1978-05-31 Analog digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6421878A JPS54156462A (en) 1978-05-31 1978-05-31 Analog digital converter

Publications (1)

Publication Number Publication Date
JPS54156462A true JPS54156462A (en) 1979-12-10

Family

ID=13251728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6421878A Pending JPS54156462A (en) 1978-05-31 1978-05-31 Analog digital converter

Country Status (1)

Country Link
JP (1) JPS54156462A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888924A (en) * 1981-11-20 1983-05-27 Fujitsu Ltd Analog-to-digital conversion circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888924A (en) * 1981-11-20 1983-05-27 Fujitsu Ltd Analog-to-digital conversion circuit
JPS6245728B2 (en) * 1981-11-20 1987-09-29 Fujitsu Ltd

Similar Documents

Publication Publication Date Title
JPS6461114A (en) Sampling frequency conversion circuit
JPS56143703A (en) Frequency converting circuit
JPS55159630A (en) Analog switch
JPS54156462A (en) Analog digital converter
JPS5573105A (en) Elastic surface wave oscillator
JPS5624825A (en) Analog-digital converting circuit
JPS5769911A (en) Amplifier
JPS5382110A (en) Compensating circuit for non-linearity
JPS54100652A (en) Sampler
JPS5776918A (en) A/d converter
JPS5698984A (en) Phase inverting circuit
JPS5568729A (en) Input circuit with input level decision
JPS5525279A (en) Automatic frequency tuning defeat device
JPS554102A (en) Non-linear generating circuit
JPS5625814A (en) Mixing unit for digital signal
JPS52110522A (en) Color television signal processing system
JPS5550710A (en) Variable amplitude modulation-phase modulation converter for differentiation equalizer
JPS554114A (en) Synchronous detection circuit
JPS5441103A (en) Signal converting circuit
JPS51150248A (en) Signal transmission circuit
JPS57190424A (en) Counter
JPS5555622A (en) Digital-analog converter
JPS5378157A (en) Delta modulatio circuit
JPS5558620A (en) Analogue digital converter
JPS54113209A (en) Vertical synchronizing signal separation circuit