KR930011583A - Source supply integrated circuit of digital exchange system - Google Patents

Source supply integrated circuit of digital exchange system Download PDF

Info

Publication number
KR930011583A
KR930011583A KR1019910020934A KR910020934A KR930011583A KR 930011583 A KR930011583 A KR 930011583A KR 1019910020934 A KR1019910020934 A KR 1019910020934A KR 910020934 A KR910020934 A KR 910020934A KR 930011583 A KR930011583 A KR 930011583A
Authority
KR
South Korea
Prior art keywords
unit
signal
digital
source supply
predetermined
Prior art date
Application number
KR1019910020934A
Other languages
Korean (ko)
Inventor
이철희
Original Assignee
정용문
삼성전자 주식회사
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 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019910020934A priority Critical patent/KR930011583A/en
Publication of KR930011583A publication Critical patent/KR930011583A/en

Links

Landscapes

  • Devices For Supply Of Signal Current (AREA)

Abstract

디지탈 교환시스템에서 각종 소스 공급수단을 집적화한 회로에 관한 것이다.The present invention relates to a circuit in which various source supply means are integrated in a digital exchange system.

종래의 디지탈 교환기내에서 많은 부피를 차지하던 각종 소스 공급수단을 하나의 칩이나 보드에 집적화하여 부피를 줄이고 소스공급을 원할히하여 신뢰성 있는 시스템 구축 및 고장 수리의 용이성 증대를 꾀한다.Various source supply means, which used to occupy a large volume in a conventional digital exchanger, are integrated on a single chip or board to reduce the volume and smoothly source supply, thereby increasing the reliability of a reliable system construction and easy troubleshooting.

Description

디지탈 교환 시스템의 소스 공급수단 집적화 회로Source supply integrated circuit of digital exchange system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 소스 공급 블럭도.2 is a source supply block diagram according to the present invention.

Claims (1)

디지탈 교환시스템에 있어서, 다수의 시스템 기준 클럭(CLK1…CLKn)을 입력해서 소정의 우선 순위에 입각하여 선택적으로 출력하는 우선순위 클럭 선택부(40)와, 상기 우선순위 클럭 선택부(40)로 부터 출력된 클럭신호를 안정화하는 PLL회로(100)와, 상기 PLL회로(100)로부터 소정의 위상검출 결과를 입력하여 소정비로 분주하는 분주부(70)와, 상기 분주부(70)에서 출력된 임의의 분주신호로써 프레임신호를 발생하는 프레임신호발생부(90)와, 상기 분주부(70)에서 소정비로 분주된 신호에 따라 해당 어드레스에 저장되어 있던 디지탈톤을 독출하는 디지탈톤 발생부(75)와, 상기 디지탈톤을 입력하여 카덴스를 조정하는 카덴스제어부(80)와, 상기 카덴스 조절된 디지탈신호를 병렬로 입력하여 직렬형태로 전환 출력하는 병렬입력 직렬출력부(85)와, 상기 소정비로 분주된 신호의 듀티를 조절하여 디이알펄스를 발생하는 타이머(95)로 구성함을 특징으로하는 소스 공급 수단 집적화 회로.In the digital switching system, a priority clock selection unit (40) for inputting a plurality of system reference clocks (CLK1 ... CLKn) and selectively outputting them based on a predetermined priority, and to the priority clock selection unit (40). A PLL circuit 100 for stabilizing a clock signal output from the PLL circuit 100, a divider unit 70 for inputting a predetermined phase detection result from the PLL circuit 100 and dividing at a predetermined ratio, and outputted from the divider unit 70 A frame signal generation unit 90 for generating a frame signal as an arbitrary division signal, and a digital tone generation unit for reading out the digital tones stored at the address according to the signal divided by the division unit 70 at a predetermined ratio ( 75), a cadence control unit 80 for adjusting the cadence by inputting the digital tone, a parallel input serial output unit 85 for converting and outputting the cadence adjusted digital signal in a parallel form, and the predetermined Minutes by rain The by controlling the duty of the signal diimide source supply means, it characterized in that the Al consists of a timer (95) for generating a pulse integrating circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910020934A 1991-11-22 1991-11-22 Source supply integrated circuit of digital exchange system KR930011583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910020934A KR930011583A (en) 1991-11-22 1991-11-22 Source supply integrated circuit of digital exchange system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910020934A KR930011583A (en) 1991-11-22 1991-11-22 Source supply integrated circuit of digital exchange system

Publications (1)

Publication Number Publication Date
KR930011583A true KR930011583A (en) 1993-06-24

Family

ID=67348759

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910020934A KR930011583A (en) 1991-11-22 1991-11-22 Source supply integrated circuit of digital exchange system

Country Status (1)

Country Link
KR (1) KR930011583A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100465298B1 (en) * 2001-12-28 2005-01-13 엘지전자 주식회사 Apparatus and Method for Selecting Input Signal of Private branch exchange

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100465298B1 (en) * 2001-12-28 2005-01-13 엘지전자 주식회사 Apparatus and Method for Selecting Input Signal of Private branch exchange

Similar Documents

Publication Publication Date Title
KR930005352A (en) Semiconductor integrated circuit
KR920006891A (en) Standard delay generator and electronic device using the same
KR960001772A (en) Timing signal generating circuit
KR840008251A (en) Video display
KR940006348A (en) D / A Inverter and A / D Inverter
KR970029796A (en) Synchronous Semiconductor Circuit with Increased Driving Time Margin
KR960020007A (en) Hybrid frequency synthesizer
TW374170B (en) Clock-synchronized input circuit and semiconductor memory device that utilizes same
KR920005495A (en) Semiconductor integrated circuit using PLL circuit and PLL circuit
JP2000100170A5 (en)
KR930011583A (en) Source supply integrated circuit of digital exchange system
KR920020433A (en) Microcontroller unit
KR890015244A (en) Digital clip circuit
KR920017455A (en) Clock conversion circuit
KR0142741B1 (en) Frequency multiflier
KR960036046A (en) Temperature correction circuit for IC device and its correction method
KR960042337A (en) Random number generator using linear feedback shift register with changeable order
KR940023116A (en) Variable digital pulse width modulation control circuit device
KR940004960A (en) Clock selection control circuit
KR960024920A (en) Apparatus and Method for Stopping Microprocessor Clocks
KR880002068A (en) Dual Clock Generation Converter Circuit of CPU Clock Generator
KR980004744A (en) Audio processing unit of disc player
KR970025268A (en) Switching device with test function in small capacity electronic exchanger
KR970068409A (en) Tone generation circuit using a digital signal processing processor (DSP)
KR980012881A (en) Reference clock automatic selection circuit

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination