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FEATURES
• Single-Chip Mixer/Oscillator and Phase-Locked Loop (PLL) Synthesizer
• Three-Band Local Oscillator and Mixer • Inter-Integrated Circuit (I2C) Bus Protocol
(Bidirectional Data Transmission)
• 30-V Tuning-Voltage Output • Four
NPN-Type Band-Switch (BS) Drivers • Programmable Reference Divider Ratio
(512, 640, or 1024)
• 5-V Power Supply • 32-Pin Thin Shrink Small-Outline Package
(TSSOP)
APPLICATIONS
• TVs • VCR/DVD Recorders • Set-Top Boxes
DESCRIPTION
The SN761683B 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-s...