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CXA7002R Datasheet

  • CXA7002R

  • I2C Bus Compatible Audio Video (AV) Switch & Electronic Volu...

  • 47頁

  • SONY   SONY

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CXA7002R
I
2
C Bus Compatible Audio Video (AV) Switch & Electronic Volume Control
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 I
2
C interface and can
operate from a single or dual power supply.
Target specifications: Canal+, BSkyB, TPS, NorDig,
and ECCA Euro-Box
Features
Supply
鈥?/div>
Single: 0V, +5V, +12V
鈥?/div>
Dual: 0V, 鈥?V, +5V and +12V
(Low number of external parts required)
Video
鈥?/div>
2 scart switching (VCR, TV)
鈥?/div>
VCR input supports RGB mode
鈥?/div>
Integrated 75鈩?drivers for direct video connection
鈥?/div>
Y/C mixer with trap for RF modulators
鈥?/div>
Switchable clamps on inputs
鈥?/div>
Low pass filters on six inputs
鈥?/div>
Controllable gain on encoder inputs
鈥?/div>
Adjustable gain on RGB outputs
鈥?/div>
Video output shutdown for low power modes
鈥?/div>
Fast blanking switch
鈥?/div>
Slow blanking switch for TV and VCR output
鈥?/div>
SVHS switch on VCR output
鈥?/div>
Y/C auxiliary input
Audio
鈥?/div>
Four stereo audio inputs
鈥?/div>
Volume control (鈥?6dB to +6dB in 2dB steps)
鈥?/div>
Additional +6dB gain on audio DAC inputs
鈥?/div>
Audio overlay facility
鈥?/div>
Volume bypass for TV and Phono outputs
鈥?/div>
Mono switching on TV, VCR outputs
鈥?/div>
Switchable audio limiter function
鈥?/div>
Switchable Mono output for RF modulators
鈥?/div>
Audio output disable for standby mode
64 pin LQFP (Plastic)
I
2
C and Logic
鈥?/div>
Fast mode compatible I
2
C bus
鈥?/div>
Function monitor with loop through
鈥?/div>
Interrupt output for function monitor and sync
detect
鈥?/div>
Logic output pin
鈥?/div>
Sync detector for Y/CVBS inputs
Applications
鈥?/div>
Digital Set Top Box
鈥?/div>
Integrated digital television
Structure
Bipolar silicon monolithic IC
Absolute Maximum Ratings
(Ta = 25擄C)
unless stated
鈥?/div>
Supply voltage
V
CC
14
V
鈥?/div>
Storage temperature
Tstg 鈥?5 to +150
擄C
鈥?/div>
Allowable power dissipation
P
D
1.1
W
(when mounted on the board)
Operating Conditions
鈥?/div>
Single supply
12 鹵 0.6
V
5 鹵 0.25
V
鈥?/div>
Dual supply
鈥? 鹵 0.25
V
5 鹵 0.25
V
12 鹵 0.6
V
鈥?/div>
Operating temperature Topr 鈥?0 to +75
擄C
鈥?/div>
Maximum ESD voltage
鹵2
kV
(Human Body Model)
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.
鈥?鈥?/div>
E02750A41

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