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TPF113 Datasheet(PDF) 1 Page - 3PEAK INC.

Part # TPF113
Description  Zero-PeakingTM, Ultra-low Power, 3-Channel SD Video Buffer with LPF
PDF  10 Pages
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Manufacturer  3PEAK [3PEAK INC.]
Direct Link  http://www.3peakic.com/
Logo 3PEAK - 3PEAK INC.

TPF113 Datasheet(HTML) 1 Page - 3PEAK INC.

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TPF113
Zero-PeakingTM, Ultra-low Power, 3-Channel SD Video Buffer with LPF
REV 2.3
www.3peakic.com
©2011 3Peak Incorporated.
特性
3-SDTV视频放大,支持视频标准CVBS、S-Video、
Y'Pb'Pr' 480i/576i、Y'U'V'或RGB
六阶巴特沃兹(
Butterworth)低通视频重构滤波
器:
-3dB带宽9MHz,阻带抑制57.2dB (27MHz)
多样化的输入偏置电路:
-
DC-耦合时提供80-mV电平移位
-
AC-耦合时提供透明钳位及80-mV电平移位
-
允许
AC-耦合时带DC-偏置
极低静态电流:
3.87mA /通道(典型值)
6dB增益(2V/V),轨至轨输出
允许交流或直流输出耦合,允许驱动
2路视频线
路或驱动
75-Ω
宽电压范围:
+3.0V至+5.5V 单电源
优化的高性能
ESD保护及浪涌保护:
-
Robust 8kV – HBM and 2kV – CDM ESD Rating
无铅产品(通过
RoHS 认证)
应用
视频信号放大
机顶盒视频输出驱动
PVR、DVD 媒体播放器的视频缓冲
USB供电、便携式设备的视频信号放大缓冲
高清电视机
产品描述
TPF113 是一款专门针对消费类应用而设计的低成
本(可高性价比替代被动
LC滤波驱动电路)视频重
构滤波器,它将卓越的视频指标与低功耗进行完美
结合。该滤波器由
3个独立的六阶Butterworth滤波缓冲
器组成,适合用于
DAC重构滤波或者ADC抗混叠滤波。
-3dB衰减频率为9MHz的滤波器,使之成为CVBS、
S-Video、Y'Pb'Pr' 480i/576i、Y'U'V'、RGB等标清视频信
号滤波应用的理想选择。
TPF113 的动态范围满足要求最严苛的视频系统所
需,其输入可灵活使用交流耦合或直流耦合。片上
集成优化的“
Transparent Sync-tip Clamp”电路,交流
耦合输入时钳位电路将
CVBS、Y'或RGB信号的同步电
平固定在
40mV,上拉电阻可以将无同步信号的Pb'、
Pr'信号偏置;同时,片上“Level Shifter”电路将信号
整体抬升
80mV,由此可以使视频信号无失真的通过
器件。直流耦合输入时片上
Level Shifter工作,以允许
完整的同步动态范围信号干净的通过该器件。
TPF113 适合用于视频信号的各种输出缓冲应用,它
提供
6dB增益(2V/V),支持轨至轨输出,支持交流或
直流线路驱动。
TPF113 具备优化的高性能静电防护及浪涌保护,非
常适合用于机顶盒等设备的视频输出驱动以保护系
统的主板器件。
TPF113 采用+3.0V至+5.5V单电源供电,总静态电流低
至
11.6mA,非常适合用于低功耗或功率敏感的USB供
电或电池供电应用。
TPF113 采用8-引脚SOIC封装,工作温度范围为−40° C
至
+85° C工业温度范围。
设计支持
AN-1201: TPF1xx系列产品应用指南
功能方框图
TPF113
gm
6dB
Sync-Tip Clamp
(DC Restore)
6-Pole
9MHz
Channel 1
Input
Channel 1
Output
+Vs
LPF
80mV
Level
Shift
gm
6dB
Sync-Tip Clamp
(DC Restore)
6-Pole
9MHz
Channel 2
Input
Channel 2
Output
+Vs
LPF
80mV
Level
Shift
gm
6dB
Sync-Tip Clamp
(DC Restore)
6-Pole
9MHz
Channel 3
Input
Channel 3
Output
+Vs
LPF
80mV
Level
Shift
+Vs
GND


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