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A/V Switch
AK4708
AV SCART Switch with Dual RGB Outputs and Video Filter
The AK4708 is an I2C controlled audio and video switch matrix designed for digital TV and set-top-box applications. The AK4708 offers the ideal features for digital set-top-box systems. The AK4708 includes the audio switches, video switches, video filters. The AK4708 provides high performance audio and video routings to meet dual SCART connections. The AK4708 is supplied in a small 48-pin LQFP package to contribute space saving in PCB.

AK4708

 

  1. Applications: Digital TV, STB
  2. Analog Switches for SCART
    · Audio section
    THD+N: -86dB (@2Vrms)
    Dynamic Range: 96dB (@2Vrms)
    Analog Inputs
    Two Full Differential Stereo Inputs or Single-ended input for Decoder DAC
    Analog Volume (+12dB to -6dB & Mute) for Decoder DAC.
    Two Stereo Inputs (TV & VCR SCART)
    Analog Outputs
    Two Stereo Outputs (TV & VCR SCART)
    Stereo Analog Volume with Pop-noise Free Circuit (+6dB to –60dB & Mute)
    Pop Noise Free Circuit for Power on/off
    · Video section
    VCR SCART supports RGB mode
    Integrated LPF: -40dB@27MHz
    75omega driver
    6dB Gain for Outputs
    Four CVBS/Y inputs (ENCx2, TV, VCR), Two CVBS/Y outputs (TV, VCR)
    Three R/C inputs (ENCx2, VCR), Two R/C outputs (TV, VCR)
    Two G and B inputs (ENC, VCR), Two G and B outputs (TV, VCR)
    · TV/VCR input monitor
    · Loop-through Mode for standby
    · Auto-Startup Mode for power saving
    · SCART pin#16 (Fast Blanking), pin#8 (Slow Blanking) Control
  3. Power supply
    · 5V+/-5% and 12V+/-10%
    · Small current consumption in Standby Mode
    (VD=10microA typ., VVD1+VVD2=10microA typ., VP=10microA typ.)
  4. Package
    · 48-pin LQFP
  5. Evaluation Board: AKD4708
PDF
Download
PDF Data Sheets
Rev. MS0618-E-01 2009/09
PDF : 455KB / 46pages
PDF Evaluation Board Manual
Rev. KM085101 2007/01
PDF : 1316KB / 28pages
AK4708 BLOCK DIAGRAM

AK4708 BLOCK DIAGRAM

AK4708 BLOCK DIAGRAM
AK4708 BLOCK DIAGRAM
To inquire for this product  |  USA   /   English