AM79R70SC datasheet(1/20 Pages) AMD

部件名	AM79R70SC

功能描述	Ringing Subscriber Line Interface Circuit

PDF	20 Pages

Scroll/Zoom	100%

制造商	AMD [Advanced Micro Devices]

网页	http://www.amd.com

标志

1 / 20 page

Publication# 21776

Rev: D Amendment: /0

Issue Date: October 1999

Am79R70

Ringing Subscriber Line Interface Circuit

DISTINCTIVE CHARACTERISTICS

I Ideal for ISDN-TA and set top applications

I On-chip ringing with on-chip ring-trip detector

I Low standby state power

I Battery operation:

—VBAT1: –40 V to –67 V

—VBAT2: –19 V to VBAT1

I On-chip battery switching and feed selection

I On-hook transmission

I Polarity reversal option

I Programmable constant-current feed

I Programmable Open Circuit voltage

I Programmable loop-detect threshold

I Current gain = 1000

I Two-wire impedance set by single component

I Ground-key detector

I Tip Open state for ground-start lines

I Internal VEE regulator

(no external –5 V power supply required)

I Two on-chip relay drivers and snubber circuits

BLOCK DIAGRAM

E1

D2

D1

Two-Wire

Interface

HPA

HPB

Input Decoder

and Control

Relay

Driver

Ring-Trip

Detector

Power-Feed

Controller

RTRIP1

RTRIP2

BGND

VCC VNEG

RD

RDC

AGND/DGND

VBAT2

A(TIP)

B(RING)

RYOUT1

RDCR

C1

Switch

Driver

VBAT1

RSGL

Ground-Key

Detector

Off-Hook

Detector

Relay

Driver

RYOUT2

C2

C3

RSGH

B2EN

RSN

VTX

Signal

Transmission

RINGIN

RYE

DET

类似零件编号 - AM79R70SC

制造商	部件名	数据表	功能描述
Advanced Micro Devices	AM79R70	271Kb / 17P	Ringing Subscriber Line Interface Circuit
	AM79R70-1JC	271Kb / 17P	Ringing Subscriber Line Interface Circuit
	AM79R70JC	271Kb / 17P	Ringing Subscriber Line Interface Circuit

More results

类似说明 - AM79R70SC

制造商	部件名	数据表	功能描述
STMicroelectronics	L3037	267Kb / 22P	SUBSCRIBER LINE INTERFACE CIRCUIT Dec-1997
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
Advanced Micro Devices	AM79R70	271Kb / 17P	Ringing Subscriber Line Interface Circuit
Advanced Micro Devices	AM79R79	340Kb / 20P	Ringing Subscriber Line Interface Circuit
Ericsson	PBL3764	1Mb / 17P	SUBSCRIBER LINE INTERFACE CIRCUIT
Infineon Technologies A...	PBL38620	1Mb / 46P	Subscriber Line Interface Circuit Rev. 2.0, Apr. 2005
Infineon Technologies A...	PBL38640	1Mb / 51P	Subscriber Line Interface Circuit Rev. 2.0, Apr. 2005