Description
The Sony CXA7002R is an Audio/Video switch designed primarily for application in Digital Set Top Boxes. It provides video and audio routing from the digital encoder source to the TV and VCR scart (peri-television) connectors. In addition, the TV audio output has a programmable volume control. The chip is programmed by means of an I2C interface and can operate from a single or dual power supply.
  Target specifications:Canal+, BSkyB, TPS, NorDig, and ECCA Euro-Box

FEATUREs
Supply
• Single: 0V, +5V, +12V
• Dual: 0V, –5V, +5V and +12V
(Low number of external parts required)
Video
• 2 scart switching (VCR, TV)
• VCR input supports RGB mode
• Integrated 75Ωdrivers for direct video connection
• Y/C mixer with trap for RF modulators
• Switchable clamps on inputs
• Low pass filters on six inputs
• Controllable gain on encoder inputs
• Adjustable gain on RGB outputs
• Video output shutdown for low power modes
• Fast blanking switch
• Slow blanking switch for TV and VCR output
• SVHS switch on VCR output
• Y/C auxiliary input
Audio
• Four stereo audio inputs
• Volume control (–56dB to +6dB in 2dB steps)
• Additional +6dB gain on audio DAC inputs
• Audio overlay facility
• Volume bypass for TV and Phono outputs
• Mono switching on TV, VCR outputs
• Switchable audio limiter function
• Switchable Mono output for RF modulators
• Audio output disable for standby mode

APPLICATIONs
• Digital Set Top Box
• Integrated digital television