型号THS7374
品牌
分类视频放大器
描述具有 9.5MHz 滤波器和 6dB 增益的 4 通道 SDTV（组件和复合）视频放大器
相关操作
产品概述

参数

Diff gain (%) 0.1
Iout (typ) (A) 0.09
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

TSSOP (PW) 14 32 mm² 5 x 6.4

特性

  • 4-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:
    • 6th-Order 9.5-MHz (–3 dB) Butterworth
    • –1 dB Passband Bandwidth at 8.2-MHz
    • 54-dB Attenuation at 27-MHz
  • 150-MHz (–3 dB) Filter Bypass Mode
  • Versatile Input Biasing
    • DC-Coupled with 300-mV Output Shift
    • AC-Coupled with Sync-Tip Clamp
    • AC-Coupled with Biasing Allowed
  • Built-in 6-dB Gain (2 V/V)
  • +3-V to +5-V Single-Supply Operation
  • Rail-to-Rail Output:
    • Output Swings Within 100 mV from the Rails to Allow AC or DC Output Coupling
    • Supports Driving 2 Lines per Channel
  • Low 9.6-mA at 3.3-V Total Quiescent Current
  • 0.1-µA Disabled Supply Current Function
  • Low Differential Gain/Phase of 0.15%/0.3°
  • Lead-Free and Green TSSOP-14 Package

说明

Fabricated using the revolutionary complementary Silicon-Germanium (SiGe) BiCom3X process, the THS7374 is a low-power, single-supply 3 V to 5 V four-channel integrated video buffer. It incorporates a sixth-order Butterworth filter (able to be bypassed) which is useful as a digital-to-analog converter (DAC) reconstruction filter or an analog-to-digital converter (ADC) anti-aliasing filter. The 9.5-MHz filter is a perfect choice for SDTV video that includes composite (CVBS), s-video, Y'U'V', G'B'R' (R'G'B'), and Y'P'BP'R 480i/576i.

As part of the THS7374 flexibility, the input can be configured for either ac or dc-coupled inputs. The 300-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 sync. AC-coupled biasing for C'/P'B/P'R channels can easily be achieved by adding an external resistor.

The THS7374 is the perfect choice for all video buffer applications. Its rail-to-rail output stage with 6-dB gain allows for both ac and dc line driving. The ability to drive two lines per channel, or 75-Ω loads, allows for maximum flexibility as a video line driver. The 9.6-mA total quiescent current at 3.3 V and 0.1-µA disabled current makes it an excellent choice for portable or other power-sensitive applications.

The THS7374 is available in a TSSOP-14 package that is lead-free and green (RoHS) compliant.