Datasheet Details
| Part number | SN761645 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 1.01 MB |
| Description | DIGITAL TV TUNER IC |
| Datasheet |
 SN761645 Datasheet
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General Description
The SN761645 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, and is available in a small outline package.
Key Features
- 1.
- Integrated Mixer/Oscillator/PLL and IF GCA.
- VHF-L, VHF-H, UHF 3-Band Local Oscillator.
- RF AGC Detector Circuit.
- I2C Bus Protocol.
- Seven-Step Charge Pump Current.
- Four NPN Emitter-Follower Type Band Switch Drivers.
- One Auxiliary Port/5-Level ADC.
- Programmable Reference Divider Ratio.
- Crystal Oscillator 4-MHz/16-MHz Support.
- Selectable Digital IFOUT and Analog IFOUT.
- Standby Mode.
- 5-V Pow.