Description
SN761668 www.ti.com SLES199E * JANUARY 2007 * REVISED APRIL 2008 DIGITAL TV TUNER IC .
The SN761668 is a low-phase-noise synthesized tuner IC designed for digital TV tuning systems.
Features
* 1
* Integrated Mixer/Oscillator/PLL and IF GCA
* VHF-L, VHF-H, UHF 3-Band Local Oscillator
* RF AGC Detector Circuit
* External 4-Pin IF Filter Between Mixer Output
and IF Amplifier Input
* I2C Bus Protocol Bidirectional Data
Transmission
* High-Voltag
Applications
* Digital TVs
* Digital CATVs
* Set-Top Boxes
DBT PACKAGE (TOP VIEW)
VLO OSC B
VLO OSC C VHI OSC B VHI OSC C OSC GND UHF OSC B1 UHF OSC C1 UHF OSC C2 UHF OSC B2
IF GND IF OUT1 IF OUT2
CP VTU
V CC
IF GCA IN1 IF GCA IN2 IF GCA CTRL IF GCA GND IF GCA OUT2 IF GCA OUT1
P5/ADC
1