PBL3853

更新时间： 2024-09-19 22:44:35

品牌	Logo	应用领域
爱立信 - ERICSSON		/
页数	文件大小	规格书
16页	259K
描述
Universal Speech Circuit

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中文翻译

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数据手册

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PBL3853 数据手册

May 1996

PBL 3853

Universal Speech Circuit

Key Features

Description

•

Low own current consumption

The PBL 3853 is a biopolar integrated speech circuit with specific parameters making

it highly suitable to be used as a line interface and speech circuit in a telephone line

powered electronic payphone. Emphasis has been put on low current consumption in

the IC thus facilitating that a greater part of the available line current can be used to

power other electrical functions in the design. From a minimum line current of

16 mA, 12 mA at 4.5 V can be used to power auxiliary functions. The circuit can

optionally create an active impedance towards the telephone line, set by external

passive components, to reduce the current consumption for the transmitted signal.

The circuit is designed to be used with a low impedance dynamic microphone but can

be used with an electret type as well. The receiver drives a low ohm dynamic

transducer directly. External clamping diodes are required on the receiver output.

Both transmitter and receiver can be muted separately (receiver cut off). Line length

regulation of the gain is possible in both receiver and transmitter. It is also possible to

use the circuit without regulation. Payphone tones and confidence tone in the recei-

ver at DTMF dialling can be injected directly into the receiver amplifier where their

levels are not affected by line length regulation and without the signal going out on

the line. All pin numbers refer to DIP package unless otherwise noted.

Can operate both with active and

passive impedance towards the line

•

Derives a high current from the line

for auxiliary functions, 12 mA at

16 mA line current

•

Separate mute inputs for transmitter

and receiver (receiver cut off)

Line length regulation possible (line

loss compensation

Comes in 18 pin DIP and 20-pin SO

package

High line current operation, max.

130mA

Especially suitable for payphone

applications

•

DTMF - confidence tone input

Excellent RFI performance

PBL 3853

PBL3853

18-pin plastic DIP

PBL3853

20-pin plastic SO

Figure 1. Block diagram. Pin numbers in all figures refer to DIP package.

12 3 4 5 6 7...16

中文翻译

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与PBL3853相关器件

型号	品牌	获取价格	描述	数据表
PBL3853N	ERICSSON	获取价格	Universal Speech Circuit
PBL3853SO	ERICSSON	获取价格	Universal Speech Circuit
PBL3853SO-T	ERICSSON	获取价格	Universal Speech Circuit
PBL38541	ERICSSON	获取价格	Universal Speech Circuit
PBL385411N	ERICSSON	获取价格	Universal Speech Circuit
PBL385411SO	ERICSSON	获取价格	Universal Speech Circuit
PBL385411SO-T	ERICSSON	获取价格	Universal Speech Circuit
PBL38541N	ERICSSON	获取价格	Telephone Speech Circuit, PDIP18, PLASTIC, DIP-18
PBL38541SO	ERICSSON	获取价格	Telephone Speech Circuit, PDSO20, SO-20
PBL38542SO	ERICSSON	获取价格	Telephone Speech Circuit, PDSO20, SO-20