PBL3766/6

更新时间： 2024-11-14 03:05:23

品牌	Logo	应用领域
爱立信 - ERICSSON		/
页数	文件大小	规格书
18页	148K
描述
Subscriber Line Interface Circuit

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中文翻译

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数据手册

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PBL3766/6 数据手册

September 1997

PBL 3766, PBL 3766/6

Subscriber Line

Interface Circuit

Key Features

Description

•

Low cost

The PBL 3766 Subscriber Line Interface Circuit (SLIC) is a monolithic integrated

circuit, manufactured in 75 V bipolar technology. The PBL 3766 SLIC facilitates the

design of cost effective, high performance on-premises (ONS) analog line interface

cards for PABX systems and terminal adapters. Small package size and few

required external components result in a miniaturized design.

The PBL 3766 programmable, constant current loop feed system can operate with

battery supply voltages between -24 V and -58 V.

The SLIC incorporates loop current and ring trip detection functions as well as a

ring relay driver.

The two- to four-wire and four- to two-wire voice frequency (vf) signal conversion,

i.e. the hybrid function, is provided by the SLIC in conjunction with either a conven-

tional or a programmable CODEC/filter.

Few external components

Programmable, constant current loop

feed

•

Line feed characteristics independent

of battery supply variations

-24 V to -58 V battery supply voltage

range

Detectors

– programmable loop current detector

– ring trip detector

The PBL 3766 package is a 22 pin, plastic dual-in-line (batwing) or a 28-pin, plastic

j-leaded chip carrier (PLCC).

The differences between PBL 3766 and PBL 3766/6 are the specifications for

balance, output offset voltage, and insertion loss.

•

Ring relay driver

Hybrid function with conventional or

programmable CODEC/filters

•

Line terminating impedance, complex

or real, set by a simple external

network or controlled by a

programmable CODEC/filter

•

Idle noise typ. -83 dBmp, typ. 7 dBrnC

5 /3

RINGRLY

Ring Relay

Driver

Low on-hook power dissipation:

20 mW @ -28 V, 35 mW @ -48 V

13/10

12 /9

Ring Trip

Detector

23/20

•

Tip-ring open circuit state for

subscriber loop power denial

Input/Output

Decoder and

Control

27/21

20/15

TIPX

On-hook transmission

9 /7

HPT

HPR

11 8/ DET

21/16

28/22

4/2

Line Feed

Controller

and

RINGX

Longitudinal

Signal

Suppression

14 1/ 1 RDC

7 4/ RSG

Two-wire

Interface

VCC

VEE

18/13

3, 6, 10, 17, 24/

5, 6, 17, 18

VBAT

GND

PBL3766

PBL

3766

Loop Current

Detector

22 1/ 9 RD

2/1

19/14

16 /12

VTX

RSN

VF Signal

Transmission

Figure 1. Block diagram. Pin numbers PLCC/DIP.

4-1

12 3 4 5 6 7...18

中文翻译

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与PBL3766/6相关器件

型号	品牌	获取价格	描述	数据表
PBL3766/6N	ERICSSON	获取价格	Subscriber Line Interface Circuit
PBL3766/6QN	ERICSSON	获取价格	Subscriber Line Interface Circuit
PBL3766/6QNT	ERICSSON	获取价格	SLIC, Bipolar, PQCC28, PLASTIC, LCC-28
PBL3766N	ERICSSON	获取价格	Subscriber Line Interface Circuit
PBL3766QN	ERICSSON	获取价格	Subscriber Line Interface Circuit
PBL3767	ETC	获取价格	Telecommunication IC
PBL3767/1N	ERICSSON	获取价格	SLIC, 2-4 Conversion, Bipolar, PDIP22, PLASTIC, MS-010AA, DIP-22
PBL3767/1NS	ERICSSON	获取价格	SLIC, Bipolar, PDIP22, BATWING, PLASTIC, DIP-22
PBL3767/1QN	ERICSSON	获取价格	SLIC, 2-4 Conversion, Bipolar, PQCC28, PLASTIC, LCC-28
PBL3767/1QN:T	ERICSSON	获取价格	TELECOM-SLIC, PQCC28, PLASTIC, LCC-28

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