SN761645 ic equivalent, digital tv tuner ic.
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* 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 C.
* Digital TV
* Digital CATV
* Set-Top Box
VLO OSC VHI OSC UHF OSC1 UHF OSC2 OSC GND
CP VTU IF GND AIF OUT D.
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 availab.
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