SN761646 Description
The SN761646 is a low-phase-noise synthesized tuner IC designed for digital TV tuning systems. The circuit consists of a PLL synthesizer, two-band local oscillator and mixer, RF AGC detector circuit and IF gain controlled amplifier, and is available in a small outline package. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments...
SN761646 Key Features
- Integrated Mixer/Oscillator/PLL and IF GCA
- VHF-H, UHF 2-Band Local Oscillator
- I2C Bus Protocol (Fixed Address)
- 30-V Tuning Voltage Output
- Two General Purpose Ports
- Selectable Wide/Narrow Band RF AGC
- Crystal Oscillator 4 MHz/8 MHz/16 MHz
- Programmable Reference Divider Ratio
- IF GCA Enable/Disable Control
- Standby Mode