The SN761667 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 SN761667 is available in a small QFN package.
Integrated Mixer/Oscillator/PLL and IF GCA
VHF-L, VHF-H, UHF Three-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 (24/28/50/64/80/128)
