UBA1706 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

UBA1706

Cordless telephone line interface

Philips Electronics 

Philips Semiconductors

Cordless telephone line interface

Objective specification

UBA1706

FEATURES

Line interface

• Low DC line voltage; operates down to 1.2 V (excluding

polarity guard)

• Voltage regulator with adjustable DC voltage

• DC mask for voltage or current regulation (CTR21)

• Line current limitation for protection

• Electronic hook switch control input

• Transmit amplifier with:

– Symmetrical inputs

– Fixed gain

– Large signal handling capability.

• Receive amplifier with fixed gain

• Transmit and receive amplifiers Automatic Gain Control

(AGC) for line loss compensation.

APPLICATIONS

• Cordless base stations

• Mains or battery-powered telephone sets.

GENERAL DESCRIPTION

The UBA1706 is a BiCMOS integrated circuit intended for

use in mains-powered telecom terminals. It performs all

speech and line interface functions, DC mask for voltage

or current regulation and electronic hook switch control.

The device also includes general purpose switches.

Most of the characteristics are programmable via a 3-wire

serial bus interface.

General purpose switches

Two switches with open-collector.

3-wire serial bus interface

Allows control of:

• DC mask (voltage or current regulation)

• Receive amplifier mute function

• AGC:

– On/off

– Slope

– Istart line current.

• The state of the general purpose switches

• Global power-down mode.

Supply

Operates with external supply voltage from 3.0 to 5.5 V.

ORDERING INFORMATION

TYPE

NUMBER

UBA1706TS

NAME

SSOP24

PACKAGE

DESCRIPTION

plastic shrink small outline package; 24 leads; body width 5.3 mm

VERSION

SOT340-1

1999 Jun 04

2

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