SN761678B Overview
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.
SN761678B Key Features
- Single-Chip Mixer/Oscillator and Phase-Locked Loop (PLL) Synthesizer
- Three-Band Local Oscillator
- I2C Bus Protocol (Bidirectional Data
- 30-V Tuning Voltage Output
- Four NPN-Type Band-Switch Drivers
- Programmable Reference Divider Ratio
- External 4-Pin Intermediate Frequency (IF)
- 5-V Power Supply
- 30-Pin Thin Shrink Small-Outline Package (TSSOP)