AM7945JC datasheet(1/18 Pages) AMD

部件名	AM7945JC

功能描述	Subscriber Line Interface Circuit

PDF	18 Pages

Scroll/Zoom	100%

制造商	AMD [Advanced Micro Devices]

网页	http://www.amd.com

标志

1 / 18 page

Publication# 18408

Rev: D Amendment: /0

Issue Date: October 1999

Am7945

Subscriber Line Interface Circuit

DISTINCTIVE CHARACTERISTICS

s Programmable constant-current feed

s Current gain = 200

s Programmable loop-detect threshold

s Low power Standby state

s Ground-key detector

s Tip Open state for ground-start lines

s –19 V to –56.5 V battery operation

s On-chip Thermal Management (TMG) feature

s Two-wire impedance set by single external

impedance

s On-hook transmission

s On-chip ring relay driver and relay snubber

circuit

s Ideal for low cost PABX and key telephone

systems

BLOCK DIAGRAM

VCC

VEE

AGND/DGND

RSN

VTX

RD

RDC

CAS

C1

C2

C3

E0

E1

DET

Two-Wire

Interface

HPA

HPB

DA

DB

BGND

VBAT

A(TIP)

B(RING)

TMG

Ground-Key

Detector

Signal

Transmission

Off-Hook

Detector

Power-Feed

Controller

Ring-Trip

Detector

RINGOUT

Ring Relay

Driver

Input Decoder

and Control

类似零件编号 - AM7945JC

制造商	部件名	数据表	功能描述
Analog Power	AM7940N	104Kb / 3P	Dual N-Channel 40-V (D-S) MOSFET
Advanced Micro Devices	AM79489	772Kb / 16P	SUBSCRIBER LINE INTERFACE CIRCUIT
	AM79489-1JC	772Kb / 16P	SUBSCRIBER LINE INTERFACE CIRCUIT
	AM79489-2JC	772Kb / 16P	SUBSCRIBER LINE INTERFACE CIRCUIT
	AM79489-3JC	772Kb / 16P	SUBSCRIBER LINE INTERFACE CIRCUIT

More results

类似说明 - AM7945JC

制造商	部件名	数据表	功能描述
STMicroelectronics	L3037	267Kb / 22P	SUBSCRIBER LINE INTERFACE CIRCUIT Dec-1997
STMicroelectronics	STLC3080	201Kb / 23P	SUBSCRIBER LINE INTERFACE CIRCUIT Dec-1999
Ericsson	PBL38620-2	135Kb / 16P	Subscriber Line Interface Circuit
	PBL38621-2	130Kb / 16P	Subscriber Line Interface Circuit
	PBL38630-2	134Kb / 16P	Subscriber Line Interface Circuit
	PBL38640-2	138Kb / 16P	Subscriber Line Interface Circuit
	PBL3764	1Mb / 17P	SUBSCRIBER LINE INTERFACE CIRCUIT
Infineon Technologies A...	PBL38620	1Mb / 46P	Subscriber Line Interface Circuit Rev. 2.0, Apr. 2005
	PBL38630	1Mb / 48P	Subscriber Line Interface Circuit Rev. 2.0, Apr. 2005
	PBL38640	1Mb / 51P	Subscriber Line Interface Circuit Rev. 2.0, Apr. 2005