Description
SN761646 www.ti.com DIGITAL TV TUNER IC Check for Samples: SN761646 SLES251 * NOVEMBER 2009 .
The SN761646 is a low-phase-noise synthesized tuner IC designed for digital TV tuning systems.
Features
* 1
* 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
Detector
* Crystal Oscillator 4
Applications
* Digital TVs
* Digital CATVs
* Set-Top Boxes
XTAL2 XTAL1 IFGCA CTRL IFGCA OUT1 IFGCA OUT2 IFGCA GND IFGCA IN2 IFGCA IN1
RHB PACKAGE (TOP VIEW)
VHI RFIN UHF RFIN2 UHF RFIN1
GPP2 VHI OSC B VHI OSC C UHF OSC B1 UHF OSC C1
32 31 30 29 28 27 26 25
UHF OSC C2 1
24 RF GND
UH