THS7303 3-Ch Low Power Video Amp w/I2C Control, Select Filters +6db Gain 2:1 Input MUX | TI.com

THS7303 (ACTIVE) 3-Ch Low Power Video Amp w/I2C Control, Select Filters +6db Gain 2:1 Input MUX

 

Description

Fabricated using the new complementary silicon-germanium (SiGe) BiCom-3 process, the THS7303 is a low-power, single-supply, 2.7-V to 5-V, 3-channel integrated video buffer. It incorporates a selectable fifth-order Butterworth filter to eliminate data converter images. The 9-MHz filter is a perfect choice for SDTV video including composite (CVBS), S-Video, and 480i/576i Y'P'BP'R, and G'B'R' (R'G'B') signals. The 16-MHz filter is ideal for EDTV 480p/576p Y'P'BP'R, G'B'R', and VGA signals. The 35-MHz filter is useful for HDTV 720p/1080i Y'P'BP'R, G'B'R', and SVGA/XGA signals. For 1080p or SXGA/UXGA signals, the filter can be bypassed allowing a 190-MHz bandwidth, 300-V/µs amplifier to buffer the signal.

Each channel of the THS7303 is individually I2C configurable for all functions which makes it flexible for any application. Its rail-to-rail output stage allows for both ac and dc coupling applications. The 6-dB gain along with the built-in SAG correction allows for maximum flexibility as an output video buffer.

The 16.6-mA total quiescent current (55 mW total power) makes the THS7303 an excellent choice for USB powered or portable video applications. While fully disabled, the THS7303 consumes less than 1 µA making it ideal for energy sensitive applications.

As part of the THS7303 flexibility, the 2:1 MUX input can be selected for ac- or dc-coupled inputs. The ac-coupled modes include a sync-tip-clamp option for CVBS/Y'/G'/B'/R' with sync or a fixed bias for the C'/P'B/P'R non-sync channels. The dc input options include a dc input or a (dc + 135-mV) input offset shift to allow for a full sync dynamic range at the output with 0-V input.

Features

  • 3-Video Amplifiers for CVBS, S-Video, Y'U'V', SD/ED/HD Y'P'BP'R, and G'B'R' (R'G'B')
  • I2C™ Control of All Functions
  • Integrated Low-Pass Filters
    • 5th-Order Butterworth Characteristics
    • Selectable Corner Frequencies of 9-MHz, 16-MHz, 35-MHz, and Bypass (190-MHz)
  • Selectable Input Bias Modes
    • AC-Coupled with Sync-Tip-Clamp
    • AC-Coupled with Bias
    • DC-Coupled with 135-mV Input Shift
    • DC-Coupled
  • 2:1 Input MUX Allows Multiple Input Sources
  • Built-in 6-dB Gain (2 V/V)
  • SAG Correction Capable
  • 2.7-V to 5-V Single Supply Operation
  • Low 16.6-mA (3.3 V) Total Quiscent Current
  • Individual Disable (< 1 µA) and Mute Control
  • Rail-to-Rail Output:
    • Output Swings within 100 mV from the Rails to Allow AC or DC Output Coupling
    • Supports Driving Two Lines per Channel
  • Low Differential Gain/Phase of 0.13%/0.55°
  • APPLICATIONS
    • Set Top Box Output Video Buffering
    • PVR/DVDR Output Buffering
    • USB/Portable Low Power Video Buffering

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    Parametrics

    Compare all products in Video amplifiers Email Download to Excel
    Part number Order Diff gain (%) Output current (Typ) (mA) Vs (Min) (V) Vs (Max) (V) Diff phase (deg) Number of channels (#) Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Rating
    THS7303 Order now 0.13     70     2.6     5.5     0.55     3     -40 to 85     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)     Catalog    
    THS7313 Samples not available 0.07     70     2.6     5.5     0.12     3     -40 to 85     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)     Catalog    
    THS7353 Order now 0.15     70     2.7     5.5     0.3     3     -40 to 85     TSSOP | 20     20TSSOP: 42 mm2: 6.4 x 6.5 (TSSOP | 20)     Catalog