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UAA2062

Analog cordless telephone IC

Philips Electronics 

Philips Semiconductors

Analog cordless telephone IC

Product specification

UAA2062

FEATURES

RF RX (double superheterodyne FM receiver)

• Integrated Low Noise Amplifier (LNA) with

programmable gain and input impedance

• 1st mixer with external filter at 10.7 MHz

• 2nd mixer with external filter at 455 or 450 kHz

(depending on country application)

• FM detector including a fully integrated IF limiter, a

wide-band PLL and a Received Signal Strength

Indicator (RSSI) output

• Carrier Detector (CD) with programmable threshold.

RF TX

• Buffer driving an internal Power Amplifier (PA) with

programmable gain

• Narrow-band PLL including VCO

• Data transmission summing operational amplifier.

Synthesizer

• 10.24 or 11.15 MHz crystal reference oscillator (LO2)

and reference frequency divider

• Programmable TX VCO with phase detector and

frequency divider

• Programmable RX VCO (LO1) with phase detector and

frequency divider

• Programmable clock divider with output buffer to drive

the microcontroller.

Baseband RX section

• Programmable RX gain

• Expander

• Fully integrated earpiece amplifier with fixed gain.

Baseband TX section

• Microphone amplifier

• Compressor

• Programmable TX gain.

Microcontroller interface

• 3-wire serial interface.

Other features

• Voltage regulator to supply internal PLLs and the

microcontroller

• Programmable low-battery detector time multiplexed

with RSSI carrier detector.

APPLICATIONS

• World-wide analog cordless telephone set (CT0).

GENERAL DESCRIPTION

The UAA2062 is a BiCMOS integrated circuit that

performs all functions from the antenna to the

microcontroller for reception and transmission for both the

base station and the handset in a cordless telephone.

This IC integrates most of the functions required for a

cordless telephone into a single integrated circuit. The

implemented programming enables the device to be used

for the CT0 standard in many countries. Additionally, the

implemented programming significantly reduces the

amount of external components, board space

requirements and external adjustments.

ORDERING INFORMATION

TYPE NUMBER

UAA2062TS

NAME

SSOP48

PACKAGE

DESCRIPTION

plastic shrink small outline package; 48 leads; body width 7.5 mm

VERSION

SOT370-1

2000 Aug 10

2

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