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SN761678BDBTG4 PDF预览

SN761678BDBTG4

更新时间: 2024-11-06 04:03:31
品牌 Logo 应用领域
德州仪器 - TI 消费电路调谐器集成电路商用集成电路放大器电视射频光电二极管
页数 文件大小 规格书
20页 436K
描述
TV TUNER IC

SN761678BDBTG4 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:TSSOP包装说明:PLASTIC, TSSOP-30
针数:30Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.81Is Samacsys:N
内置中频放大器:YES商用集成电路类型:VIDEO TUNER
最大输入频率(射频):801.25 MHz最小输入频率(射频):55.25 MHz
JESD-30 代码:R-PDSO-G30长度:7.8 mm
标称噪声指数:10 dB频带数量:3
功能数量:1端子数量:30
最高工作温度:85 °C最低工作温度:-20 °C
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP30,.25,20封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):NOT SPECIFIED
电源:5 V认证状态:Not Qualified
座面最大高度:1.2 mm子类别:Other Consumer ICs
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
表面贴装:YES技术:BIPOLAR
温度等级:COMMERCIAL EXTENDED端子形式:GULL WING
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:4.4 mm
Base Number Matches:1

SN761678BDBTG4 数据手册

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SN761678B  
TV TUNER IC  
www.ti.com  
SLES185JUNE 2006  
FEATURES  
DBT PACKAGE  
(TOP VIEW)  
Single-Chip Mixer/Oscillator and  
Phase-Locked Loop (PLL) Synthesizer  
1
30  
VHI OSC C  
VHI OSC B  
OSC GND  
VLO OSC C  
VLO OSC B  
UHF OSC B1  
UHF OSC C1  
UHF OSC C2  
UHF OSC B2  
IF GND  
UHF RF IN  
VHF RF IN  
BS4  
Three-Band Local Oscillator  
I2C Bus Protocol (Bidirectional Data  
Transmission)  
2
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
3
4
RF GND  
MIX OUT2  
MIX OUT1  
IF IN2  
IF IN1  
BS2  
30-V Tuning Voltage Output  
5
Four NPN-Type Band-Switch Drivers  
6
Programmable Reference Divider Ratio  
(512, 640, or 1024)  
7
8
External 4-Pin Intermediate Frequency (IF)  
Filter Between Mixer Output and IF Amplifier  
Input  
9
10  
11  
12  
13  
14  
15  
BS1  
VCC  
BS3  
IF OUT  
ADC  
5-V Power Supply  
CP  
AS  
30-Pin Thin Shrink Small-Outline Package  
(TSSOP)  
VTU  
SDA  
XTAL  
SCL  
APPLICATIONS  
P0038-01  
TVs  
VCR/DVD Recorders  
Set-Top Boxes  
DESCRIPTION  
The SN761678B is a synthesized tuner IC designed for TV tuning systems. The circuit consists of a  
phase-locked loop (PLL) synthesizer, three-band local oscillator and mixer, 30-V output tuning amplifier, and four  
NPN band-switch drivers. The device 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.  
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This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with  
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.  
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be  
more susceptible to damage because very small parametric changes could cause the device not to meet its published  
specifications.  
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.  
Copyright © 2006, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  

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