Description
SN761645 www.ti.com DIGITAL TV TUNER IC Check for Samples: SN761645 SLES262 * SEPTEMBER 2010 .
The SN761645 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
* I2C Bus Protocol
* Seven-Step Charge Pump Current
* Four NPN Emitter-Follower Type Band Switch
Drivers
* One Auxiliary Port/5
Applications
* Digital TV
* Digital CATV
* Set-Top Box
VLO OSC VHI OSC UHF OSC1 UHF OSC2 OSC GND
CP VTU IF GND AIF OUT DIF OUT1 DIF OUT2 P5/ADC VCC IF GCA IN1 IF GCA IN2 IF GCA CTRL IF GCA GND IF GCA OUT2 IF GCA OUT1
DBT PACKAGE (TOP VIEW)
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