CXA2078Q
I2C Bus-Compatible Audio/Video Switch with Electronic Volume
Description
The CXA2078Q is an I2C programmable audio,
video switch designed for set top box applications. It
interfaces from digital encoder sources to TV, VCR
and auxilliary scart connectors.
Features
• 3 scart independent audio/video switching (TV, VCR,
AUX)
• 0 to –63dB volume control with click noise reduction
• 5 stereo audio inputs
• I2C control with two address setting
• Scart Function Switching input and output
• Scart Fast Blanking for OSD
• RF modulator output with Y/C mix option
• On-chip +12V to +9V voltage regulator
• 4 logic outputs
Applications
Audio/Video switch featuring I2C bus compatibility
for set top box
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings
• Supply voltage
VCC
• Operating temperature Topr
• Storage temperature Tstg
• Allowable power dissipation
PD
12
–20 to +75
–65 to +150
500
V
°C
°C
mW
Operating Conditions
• Supply voltage
• Operating voltage
+10.7 to +12
9 ± 0.5
V
V
64 pin QFP (Plastic)
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E97843-PS
