UBA1707 NXP Semiconductors, UBA1707 Datasheet - Page 2

• Manufacturer Part Number: UBA1707
• Description: Cordless Telephone, Answering Machine Line Interface
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
Line interface
Auxiliary amplifier
Loudspeaker channel
General purpose switches
3-wires serial bus interface
Allows to control:
ORDERING INFORMATION
1999 Feb 17
UBA1707T
UBA1707TS
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 (CTR 21)
Line current limitation for protection
Electronic hook switch control input
Transmit amplifier with:
– Symmetrical inputs
– Fixed gain
– Large signals handling capability.
Receive amplifier with fixed gain
Transmit and receive amplifiers AGC for line loss
compensation.
Fixed gain.
Dual inputs
Rail-to-rail output stage for single-ended load drive
High output current capability
Dynamic limiter to prevent distortion
Digital volume control
Fixed maximum gain.
Three switches with open-collector.
DC mask (voltage or current regulation)
Receive amplifier mute function
Cordless telephone, answering machine
line interface
NUMBER
TYPE
SSOP28
NAME
SO28
plastic small outline package; 28 leads; body width 7.5 mm
plastic shrink small outline package; 28 leads; body width 5.3 mm
2
DESCRIPTION
Supply
Operates with external supply voltage from 3.0 to 5.5 V.
APPLICATIONS
GENERAL DESCRIPTION
The UBA1707 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 includes an auxiliary amplifier, a loudspeaker
channel and general purpose switches.
Most of the characteristics are programmable via a 3-wire
serial bus interface.
PACKAGE
AGC:
– On/off
– Slope
– I
Auxiliary amplifier mute function
Loudspeaker channel:
– Input selection
– Volume setting
– Dynamic limiter inhibition
– Power-down mode.
General purpose switches state
Global power-down mode.
Cordless base stations
Answering machines
Mains or battery-powered telephone sets.
start
line current.
Product specification
UBA1707
SOT136-1
SOT341-1
VERSION