SN761664 Datasheet PDF Download, etcTI





(PDF) SN761664 Datasheet Download

Part Number SN761664
Description DTV TUNER IC
Manufacture etcTI
Total Page 22 Pages
PDF Download Download SN761664 Datasheet PDF

Features: www.ti.com FEATURES • Low-Phase-Noise Mixer/Oscillator and PLL Synthesizer VHF-L, VHF-H, UHF Three-Band Local Os cillator • External 4-Pin IF Filter B etween Mixer Output and IF Amplifier In put • I2C Bus Protocol (Bidirectional Data Transmission) • 30-V Tuning Vol tage Output • Four NPN-Type Band-Swit ch Drivers • One Auxiliary-Port, Five -Level ADC • RF AGC Detector Circuit • Crystal Oscillator Output • Progr ammable Reference Divider Ratio (24/28/ 50/64/80/128) • Standby Mode • 5-V Power Supply • 38-Pin Thin Shrink Sma ll-Outline Package (TSSOP) SN761664 DT V TUNER IC SLES184 – JUNE 2006 DBT P ACKAGE (TOP VIEW) VLO OSC B VLO OSC C OSC GND VHI OSC B VHI OSC C UHF OSC B1 UHF OSC C1 UHF OSC C2 UHF OSC B2 IF GND IF OUT1 IF OUT2 VCC CP VTU P5/ADC XTAL 1 XTAL2 XTALOUT 1 2 3 4 5 6 7 8 9 10 1 1 12 13 14 15 16 17 18 19 38 UHF RF IN 2 37 UHF RF IN1 36 VHI RF IN 35 VLO RF IN 34 BS4 33 RF GND 32 MIXOUT2 31 MIXOU T1 30 IF IN2 29 IF IN1 28 RF AGC 27 AGC FIL2 26 AGC FIL1 25 BS3 24 BS2 23 BS1 22 SDA 21 SCL.

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www.ti.com
FEATURES
Low-Phase-Noise Mixer/Oscillator and PLL
Synthesizer
VHF-L, VHF-H, UHF Three-Band Local
Oscillator
External 4-Pin IF Filter Between Mixer Output
and IF Amplifier Input
I2C Bus Protocol (Bidirectional Data
Transmission)
30-V Tuning Voltage Output
Four NPN-Type Band-Switch Drivers
One Auxiliary-Port, Five-Level ADC
RF AGC Detector Circuit
Crystal Oscillator Output
Programmable Reference Divider Ratio
(24/28/50/64/80/128)
Standby Mode
5-V Power Supply
38-Pin Thin Shrink Small-Outline Package
(TSSOP)
SN761664
DTV TUNER IC
SLES184 – JUNE 2006
DBT PACKAGE
(TOP VIEW)
VLO OSC B
VLO OSC C
OSC GND
VHI OSC B
VHI OSC C
UHF OSC B1
UHF OSC C1
UHF OSC C2
UHF OSC B2
IF GND
IF OUT1
IF OUT2
VCC
CP
VTU
P5/ADC
XTAL1
XTAL2
XTALOUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
38 UHF RF IN2
37 UHF RF IN1
36 VHI RF IN
35 VLO RF IN
34 BS4
33 RF GND
32 MIXOUT2
31 MIXOUT1
30 IF IN2
29 IF IN1
28 RF AGC
27 AGC FIL2
26 AGC FIL1
25 BS3
24 BS2
23 BS1
22 SDA
21 SCL
20 AS
APPLICATIONS
Digital TV
Digital CATV
Set-Top Box
P0034-02
DESCRIPTION
The SN761664 is a low-phase-noise synthesized tuner IC designed for digital TV tuning systems. The circuit
consists of a PLL synthesizer, three-band local oscillator and mixer, 30-V output tuning amplifier, and four NPN
band-switch drivers, and is available in a small-outline package. A 15-bit programmable counter and reference
divider are controlled by I2C bus protocol. Tuning-step frequency is selectable by this reference divider ratio for a
crystal oscillator.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated

                    
                    






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