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CXA2161R

Sony Corporation
Part Number CXA2161R
Manufacturer Sony Corporation
Description I2C Bus Compatible Audio Video (AV) Switch & Electronic Volume Control
Published Mar 27, 2005
Detailed Description CXA2161R I2C Bus Compatible Audio Video (AV) Switch & Electronic Volume Control Description The Sony CXA2161R is an Audi...
Datasheet PDF File CXA2161R PDF File

CXA2161R
CXA2161R

Overview
CXA2161R I2C Bus Compatible Audio Video (AV) Switch & Electronic Volume Control Description The Sony CXA2161R 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 (peritelevision) 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 75Ω drivers for direct video connection • Y/C mixer with trap for RF modulators • Switchable clamps on 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 switchable gain on audio DAC inputs • Audio overlay facility • Volume bypass for TV and Phono outputs • Mono switching on TV, VCR outputs • High drive capability (600Ω loads possible) • Switchable audio limiter function • Switchable Mono output for RF modulators • Audio output disable 56 pin LQFP (Plastic) I2C and Logic • Fast mode compatible I2C bus • Function monitor with loop through • Interrupt output for function monitor • Logic output pin • Sync detector for Y/CVBS inputs Applications • Digital Set Top Box • Integrated digital television Structure Bipolar silicon monolithic IC Absolute Maximum Ratings (Ta = 25°C) unless stated • Supply voltage VCC 14 V • Storage temperature Tstg –65 to +150 °C • Allowable power dissipation PD 1.
1 W (when mounted on the board) Operating Conditions • Single supply • Dual supply • Operating temperature To...


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