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SN761678B Datasheet Tv Tuner

Manufacturer: Texas Instruments

Overview: .ti.

General Description

The SN761678B is a synthesized tuner IC designed for TV tuning systems.

The circuit consists of a phase-locked loop (PLL) synthesizer, three-band local oscillator and mixer, 30-V output tuning amplifier, and four NPN band-switch drivers.

The device is available in a small-outline package.

Key Features

  • Single-Chip Mixer/Oscillator and Phase-Locked Loop (PLL) Synthesizer.
  • Three-Band Local Oscillator.
  • I2C Bus Protocol (Bidirectional Data Transmission).
  • 30-V Tuning Voltage Output.
  • Four NPN-Type Band-Switch Drivers.
  • Programmable Reference Divider Ratio (512, 640, or 1024).
  • External 4-Pin Intermediate Frequency (IF) Filter Between Mixer Output and IF Amplifier Input.
  • 5-V Power Supply.
  • 30-Pin Thin Shrink Small-Outline.

SN761678B Distributor