SN761640
www. ti. com SLES237 – OCTOBER 2008
DIGITAL TV TUNER IC
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
Bidirectional Data Transmission • High-Voltage Tuning Voltage Output • Four NPN-Type Band Switch Drivers • One Auxiliary Port/5-Level ADC • Crystal Oscillator Output • Programmable Reference Divider Ratio
(24/28/32/64/80/128) • IF GCA Enable/Disable Control • Selectable digital IFOUT and Analog IFOUT • Standby Mode • 5-V Power Supply • 44-Pin Thin Shrink Small-Outline Package
(TSSOP)
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 AIF OUT DIF OUT1 DIF O...
SN761640 PDF File
