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TV/VCR Tuner IC
Texas Instruments
Description
SN761672A is a single chip synthesized tuner IC designed for TV/VCR tuning systems. The circuit consists of a PLL synthesizer, 3-band local oscillators and mixer, a 30-V output tuning amplifier, and four NPN band switch drivers. It is available in a small package outline. The 15-bit programmable counter and reference divider is controlled by I2C bus protocol. Tuning step frequency is selectable by this reference-divider ratio for a 4-MHz crystal oscillator.
Features
Single Chip Mixer/Oscillator and Synthesizer VHF-L, VHF-H, UHF 3-Band Local Oscillator I2C Bus Protocol Bidirectional Data Transmission 30-V Tuning Voltage Output 4-Channel NPN Type Band Switch Drivers Programmable Reference Divider Ratio (512, 640 or 1024) 5-V Power Supply 32-Pin TSSOP Package
Related Datasheets
| Part Number | Description | Category |
| • CDC7005 | 3.3-V High Performance Clock Synthesizer & Jitter Cleaner (Rev. I) | Actives - Transistors and Diodes |
| • CDCE421 | Fully Integrated Wide Range Low-Jitter Crystal Oscillator Clock Generator (Rev. A) | Actives - Transistors and Diodes |
| • CDCE913 | Programmable 1-PLL VCXO Clock Synthesizer With 1.8-V, 2.5-V, and 3.3-V Outputs (Rev. B) | Actives - Transistors and Diodes |
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