DESCRIPTION
The STV6412A is a highly integrated I²C bus-controlled audio and video switch matrix, optimized for use in digital set-top box applications. It provides all the audio and video routings required in a full two SCART set-top box design.

FEATURES
■ I²C Bus Control
■ Standby Mode with Interrupt Signal Output
■ Video Section
    – 4 CVBS Inputs, 3 CVBS Outputs (one with Selectable Chroma Trap Filter)
    – 3 Y/C Inputs, 2 Y/C Outputs
    – 6 dB Gain on all CVBS/Y and C Outputs
    – Integrated 150 Ω Buffers
    – 1 Y/C Adder
    – 2 RGB/FB Inputs, 1 Tri-state RGB/FB Output with 6 dB Adjustable Gain (from +3dB to +9dB)
    – Video Muting on all Outputs
    – 2 Slow Blanking Inputs/Outputs
    – Sync Bottom Clamp on all CVBS/Yand RGB Inputs, Average Clamp on C Inputs
    – Bandwidth: 15 MHz
    – Crosstalk: 50 dB Minimum
■ Audio Section
    – 4 Stereo Inputs, 3 Stereo Outputs
    – 1 Mono-Sound Output
    – Stereo-to-Mono Sound Capability
    – 0/6/9 dB Selectable Gain on one Stereo Input
    – Full Range Volume Control with Soft Control
    – Audio Muting on all Outputs