Description
SN761642 www.ti.com SLES249 * AUGUST 2009 DIGITAL TV TUNER IC .
The SN761642 is a low-phase-noise synthesized tuner IC designed for digital TV tuning systems.
Features
* 1
* Integrated Mixer/Oscillator/PLL
* VHF-L, VHF-H, UHF 3-Band Local Oscillator
* RF AGC Detector Circuit
* I2C Bus Protocol
Bidirectional Data Transmission
* High-Voltage Tuning Voltage Output
* Four NPN-Type Band Switch Drivers
* One Auxiliar
Applications
* Digital TVs
* Digital CATVs
* Set-Top Boxes
DBT PACKAGE (TOP VIEW)
VLO OSC B VLO OSC C VHI OSC B VHI OSC C UHF OSC B1 UHF OSC C1 UHF OSC C2 UHF OSC B2
OSC GND CP
VTU IF GND DIF OUT1 DIF OUT2 AIF OUT P5/ADC
VCC XTAL1 XTAL2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19