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SN761644 - DIGITAL TV TUNER IC

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Texas Instruments

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SN761644 DIGITAL TV TUNER IC by Texas Instruments - Datasheet Preview — Datasheet preview – SN761644

Datasheet Details

Part number	SN761644
Manufacturer	Texas Instruments
File Size	929.82 KB
Description	DIGITAL TV TUNER IC
Datasheet	SN761644 Datasheet
Additional preview pages of the SN761644 datasheet.

SN761644 Product details

Description

The SN761644 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.

The SN761644 is available in a small-outline package.

Features

1.
Integrated Mixer/Oscillator/PLL and IF GCA.
Mirror Pin Package of SN761640.
VHF-L, VHF-H, UHF 3-Band Local Oscillator.
RF AGC Detector Circuit.
I2C Bus Protocol Bidirectional Data Transmission.
High-Voltage Tuning Voltage Output.
Four NPN-Type Band Switch Drivers.
One Auxiliary Port/5-Level ADC.
Crystal Oscillator Output.
Programmable Reference Divider Ratio (24/28/32/64/80/128).
IF GCA Enable/D.

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Published: Sep 4, 2019 |