KR970024623A - Wideband Digital / Analog Converters for Low and High Frequency - Google Patents

Wideband Digital / Analog Converters for Low and High Frequency Download PDF

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Publication number
KR970024623A
KR970024623A KR1019950034962A KR19950034962A KR970024623A KR 970024623 A KR970024623 A KR 970024623A KR 1019950034962 A KR1019950034962 A KR 1019950034962A KR 19950034962 A KR19950034962 A KR 19950034962A KR 970024623 A KR970024623 A KR 970024623A
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KR
South Korea
Prior art keywords
switch
block
high frequency
switched
analog
Prior art date
Application number
KR1019950034962A
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Korean (ko)
Inventor
김흥동
Original Assignee
김광호
삼성전자 주식회사
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950034962A priority Critical patent/KR970024623A/en
Publication of KR970024623A publication Critical patent/KR970024623A/en

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Abstract

본 발명은 고주파 및 저주파에서 사용할 수 있는 광대역 디지탈/아날로그 변환기에 관한 것으로서, 동기신호에 따라 저주파 및 고주파용 디지탈/아날로그 변환기로 절환되는 제1스위치 ; 입력버퍼 ; 래치-디코더 블록 ; 아날로그 스위치 ; 제1스위치가 고주파용 변환기로 절환되면 동기 신호를 래치하는 래치블록 ; 제1스위치가 고주파용으로 절환되면 오프 상태로 있다가 저주파용으로 절환되면 온 상태로 동작되는 제2스위치 ; 제2스위치가 온 상태가 되면 인에이블되어 상기 아날로그 스위치에 전력공급을 차단하는 전력다운블록 ; 제2스위치가 온 상태가 되면 외부동기신호를 출력하는 외부동기블록 ; 및 래치블럭의 신호와 데이터를 가산하거나 외부동기 블록의 신호와 데이터를 가산하는 가산기를 포함함을 특징으로 한다.The present invention relates to a wideband digital / analog converter that can be used at high frequency and low frequency, comprising: a first switch switched to a low frequency and high frequency digital / analog converter according to a synchronization signal; Input buffer; Latch-decoder block; Analog switch; A latch block for latching a synchronization signal when the first switch is switched to a high frequency converter; A second switch that is in an off state when the first switch is switched for high frequency and is operated in an on state when it is switched for low frequency; A power down block enabled when the second switch is turned on to cut off power supply to the analog switch; An external synchronization block for outputting an external synchronization signal when the second switch is turned on; And an adder for adding signals and data of the latch block or adding signals and data of an external synchronization block.

본 발명에 의하면 사용자의 선택에 광범위한 영역을 주며 광대역 DAC로서의 역할을 충분히 할 수 있다. 또한 저주파용 및 고주파용으로 사용하므로써 비용절감 효과가 있고 사용자에게는 편리성을 제공한다.According to the present invention, it is possible to give a wide range to the user's selection and to serve as a wideband DAC. In addition, by using for low frequency and high frequency, it is cost effective and provides convenience to users.

Description

저주파 및 고주파용 광대역 디지탈/아날로그 변환기Wideband Digital / Analog Converters for Low and High Frequency

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 외부에 동기신호가 존재하는 저주파용 DAC의 블록도를 도시한 것,2 is a block diagram of a low frequency DAC having a synchronization signal externally;

제3도는 두개의 스위치와 전력다운모드를 이용하여 저주파 또는 고주파용 DAC로 선택적으로 사용할 수 있도록 한 본 발명의 블록도,FIG. 3 is a block diagram of the present invention for selectively using a low frequency or high frequency DAC using two switches and a power down mode.

제4도는 제3도의 제1스위치를 트랜지스터 레벨로 도시한 회로도이다.4 is a circuit diagram showing the first switch of FIG. 3 at the transistor level.

Claims (1)

고주파용 디지탈/아날로그 변환기와 저주파용 디지탈/아날로그 변환기에 범용적으로 사용할 수 있는 광대역(wide band) 디지탈/아날로그 변환기에 있어서, 내부 동기 신호가 입력되면 고주파용 디지탈/아날로그 변환기로 절환되고, 외부 동기 신호가 입력되면 저주파용 디지탈/아날로그변환기로 절환되는 제1스위치 ; 데이터를 입력하여 일시 저장하는 입력버퍼 ; 상기 입력버퍼의 데이터를 래치하여 디코드하는 래치-디코더 블록 ; 상기 래치-디코더 블록의 데이터를 받아들이는 아날로그 스위치 ; 상기 제1스위치가 고주파용 디지탈/아날로그 변환기로 절환되면 동기 신호를 래치하는 래치블록 ; 상기 제1스위치가 고주파용 디지탈/아날로그 변환기로 절환되면 오프(OFF)상태로 있다고 저주파용 디지탈/아날로그 변환기로 절환되면 온(ON)상태로 동작되어 전력다운 블록 및 외부동기 블록을 인에블시키는 제2스위치 ; 상기 제2스위치가 온 상태가 되면 인에이블되어 상기 아날로그 스위치에 전력공급을 차단하는 전력다운 블록 ; 상기 제2스위치가 온 상태가 되면 외부 동기신호를 출력하는 외부동기 블록 ; 및 상기 제1스위치에서 고주파용 디지탈/아날로그 변환기로 절환되면 상기 래치블럭의 신호와 상기 아날로그 스위치를 통한 데이터를 가산하고, 상기 제1스위치에서 저주파용 디지탈/아날로그 변환기로 절환되면 상기 외부동기 블록의 신호와 상기 아날로그 스위치를 통한 데이터를 가산하는 가산기를 포함함을 특징으로 하는 저주파 및 고주파용 광대역 디지탈/아날로그 변환기.A wide band digital / analog converter that can be used universally for high frequency digital / analog converters and low frequency digital / analog converters. A first switch switched to a low frequency digital / analog converter when a signal is input; An input buffer for temporarily saving data by inputting it; A latch-decoder block for latching and decoding data of the input buffer; An analog switch for receiving data of the latch-decoder block; A latch block for latching a synchronization signal when the first switch is switched to a high frequency digital / analog converter; When the first switch is switched to the high frequency digital / analog converter, it is turned off. When the first switch is switched to the low frequency digital / analog converter, the first switch is operated to be turned on to enable the power down block and the external synchronization block. Second switch; A power down block that is enabled when the second switch is turned on to cut off power supply to the analog switch; An external synchronization block outputting an external synchronization signal when the second switch is turned on; And when the first switch is switched to the high frequency digital / analog converter, the signal of the latch block and the data through the analog switch are added, and when the first switch is switched to the low frequency digital / analog converter, And a adder for adding a signal and data through the analog switch. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950034962A 1995-10-11 1995-10-11 Wideband Digital / Analog Converters for Low and High Frequency KR970024623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950034962A KR970024623A (en) 1995-10-11 1995-10-11 Wideband Digital / Analog Converters for Low and High Frequency

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Application Number Priority Date Filing Date Title
KR1019950034962A KR970024623A (en) 1995-10-11 1995-10-11 Wideband Digital / Analog Converters for Low and High Frequency

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KR970024623A true KR970024623A (en) 1997-05-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100487487B1 (en) * 1997-08-16 2005-08-01 삼성전자주식회사 Analog digital converter for reducing noise
KR102608696B1 (en) 2023-06-14 2023-12-01 초연결 주식회사 Reinforcing frame for repairing cracked road surface or subsidence ground and method for repairing cracked road surface or subsidence ground using the reinforcing frame

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100487487B1 (en) * 1997-08-16 2005-08-01 삼성전자주식회사 Analog digital converter for reducing noise
KR102608696B1 (en) 2023-06-14 2023-12-01 초연결 주식회사 Reinforcing frame for repairing cracked road surface or subsidence ground and method for repairing cracked road surface or subsidence ground using the reinforcing frame

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