Rev. 4665D–SIGE–08/04

Features

Applications

Benefits

Electrostatic sensitive device.

Observe precautions for handling.

Description

The ATR0797 is a multi-purpose demodulator RFIC. The silicon monolithic integrated

circuit is designed with Atmel’s advanced SiGe technology. This demodulator is capa-

ble of both quadrature demodulation or direct IF output. Features include switchable

gain control on a frequency range from 65 MHz to 300 MHz. The device performs a

very low amplitude as well as phase error and allows high input P1dB. The ATR0797

targets a variety of system applications for communications including 3G wireless.

Figure 1. Block Diagram

ϕ

IFP

IFN

GC1

GC2

BBIP

BBIN

BBQP

BBQN

1

2

16

15

12

13

4

5

8

9

65 - 300 MHz

SiGe IF

Receiver/

Demodulator

ATR0797