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SN761668 - DIGITAL TV TUNER

Description

The SN761668 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 SN761668 is available in a small-outline package.

Features

  • 1.
  • Integrated Mixer/Oscillator/PLL and IF GCA.
  • VHF-L, VHF-H, UHF 3-Band Local Oscillator.
  • RF AGC Detector Circuit.
  • External 4-Pin IF Filter Between Mixer Output and IF Amplifier Input.
  • 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 (24/28/5.

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Other Datasheets by Texas Instruments

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SN761662 DTV TUNER IC
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SN761668 www.ti.com .....................................................................................................................................................
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