SN761681 Description
The SN761681 is a synthesized tuner IC designed for TV tuning systems. The circuit consists of a PLL synthesizer, three-band local oscillator and mixer, 30-V output tuning amplifier, four NPN band-switch drivers, and is available in a small-outline package. A 15-bit programmable counter and reference divider are controlled by I2C bus protocol.
SN761681 Key Features
- Single-Chip Mixer/Oscillator and 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 (512
- 5-V Power Supply
- 30-Pin TSSOP Package