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AIT1042

Integrated Digital Tuner with RF and IF Gain Control

ANADIGICS 

FEATURES

• Complete Integrated RF Tuner: Includes

Upconverter with RF Gain Control,

Downconverter, Digital IF Amplifier with Gain

Control, Dual PLL, and VCOs with integrated

tanks

• IF Output - 35 to 50 MHz

• 54 to 1002 MHz Operation

• Operates from a Single +5 V Supply

• Integrated Oscillator Tank Circuits

• 78 dB Gain (including external filter losses)

through Digital Output

• 35 dB RF Gain Control Range

• 45 dB IF Gain Control Range

• 2-Wire Serial Programming with 4 Addresses for

Multiple Tuner Applications

• Programmable Power-Down Mode

• Programmable Charge Pump Currents

• Materials set consistent with RoHS directives

APPLICATIONS

• CATV Tuners

• HDTV Tuners

• Set-Top Boxes

• PC TV Tuner Cards or Tuner-on-Board

AIT1042

Integrated Digital Tuner

with RF and IF Gain Control

PRELIMINARY DATA SHEET - Rev 1.0

S38 Package

48 Pin QFN

7 mm x 7 mm x 1 mm

PRODUCT DESCRIPTION

The AIT1042 Integrated Digital Tuner with RF and IF

Gain Control is a complete 1 GHz bandwidth tuner IC

specifically designed to support digital video and data

applications. It combines GaAs and Silicon technology

to integrate the upconverter, downconverter, VCO,

synthesizer, IF amplifier, RF gain control and IF gain

control functions of a double-conversion tuner into

one small package.

Figure 1: Functional Block Diagram

02/2009

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