SN761645 Datasheet (Texas Instruments)

SN761645, DIGITAL TV TUNER IC

The SN761645 is a low-phase-noise synthesized tuner IC designed for digital TV tuning systems.

The circuit consists of a PLL synthesizer, three-band local oscillator and mixer, RF AGC detector circuit, and IF gain controlled amplifier, and is available in a small outline package.

ORDERING INFORMATI

SN761645 Features

* 1

* Integrated Mixer/Oscillator/PLL and IF GCA

* VHF-L, VHF-H, UHF 3-Band Local Oscillator

* RF AGC Detector Circuit

* I2C Bus Protocol

* Seven-Step Charge Pump Current

* Four NPN Emitter-Follower Type Band Switch Drivers

* One Auxiliary Port/5