型号THS7315
品牌
分类视频放大器
描述具有 5 阶滤波器和 5.2V/V 增益的 3 通道 SDTV 视频放大器
相关操作
产品概述

参数

Diff gain (%) 0.2
Iout (typ) (A) 0.08
Vs (min) (V) 2.85
Vs (max) (V) 5.5
Diff phase (°) 0.3
Operating temperature range (°C) -40 to 85
Rating Catalog

封装 | 引脚 | 尺寸

SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • Three SDTV Video Amplifiers for CVBS, S-Video, Y'P'BP'R 480i/576i, Y'U'V', or G'B'R' (R'G'B')
  • Integrated Low-Pass Filters:
    • 5th-Order, 8.5-MHz (-3dB) Butterworth
      • -1dB Passband Bandwidth at 7 MHz
      • 47 dB Attenuation at 27 MHz
  • Versatile Input Biasing:
    • DC-Coupled with 230-mV Output Shift
    • AC-Coupled with Sync-Tip Clamp
    • Allows AC-Coupled With DC-Biasing
  • Built-in 5.2 V/V Gain (14.3 dB)
  • +3-V to +5-V Single Supply Operation
  • Rail-to-Rail Output:
    • Output Swings Within 100 mV of the Rails, Allowing AC- or DC-Output Coupling
    • Supports Driving Two Lines per Channel
  • Low Total Quiescent Current: 15.6 mA at 3.3 V
  • Low Differential Gain/Phase of 0.2%/0.3°
  • Lead-free, Green SOIC-8 Package
  • APPLICATIONS
    • Set Top Box Output Video Buffering
    • PVR/DVDR Output Buffering
    • USB/Portable Low-Power Video Buffering

DaVinci is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

说明

Fabricated using the revolutionary complementary silicon-sermanium (SiGe) BiCom3 process, the THS7315 is a low-power, single-supply, 3-V to 5-V 3-channel integrated video buffer. It incorporates a 5th-order Butterworth filter that is useful as a digital-to-analog converter (DAC) reconstruction filter or an analog-to-digital converter (ADC) anti-aliasing filter. The 8.5-MHz filter is a perfect choice for SDTV video, including Composite Video Baseband Signals (CVBS), S-Video, Y’U’V’, G’B’R’ (R’G’B’), and Y’P’BP’R 480i/576i.

The THS7315 inputs can be either ac- or dc-coupled. The 230-mV output level shift allows for a full sync dynamic range at the output with 0 V input. The ac-coupled modes include a transparent sync-tip clamp option for CVBS, Y', and G'B'R' signals with bottom-level sync. AC-coupled biasing for C'/P'B/P'R channels can easily be achieved by adding an external resistor to VS+.

The THS7315 is the perfect choice for all output buffer applications. Its rail-to-rail output stage with 5.2-V/V gain allows for both ac and dc line driving, making it a perfect choice for DaVinci processors. The ability for each channel to drive two video lines, or 75- loading, allows for maximum flexibility as a video line driver. The 15.6-mA quiescent current at 3.3 V also makes it an excellent choice for USB-powered, portable, or other power-sensitive video applications

The THS7315 is available in a small SOIC-8 package that is lead-free and compliant with green requirements.