max9508atet Maxim Integrated Products, Inc., max9508atet Datasheet - Page 17

• Manufacturer Part Number: max9508atet
• Description: Max9508 Video Filter Amplifier With Smartsleep And Bidirectional Video Support
• Manufacturer: Maxim Integrated Products, Inc.

Set the INT/EXT control input high for external mode.
The 2:1 multiplexer selects the video signal on
EXTCVBSIN
Figure
8. External Mode Operation for Portable DVD Applications
MICROCONTROLLER
CURRENT
CURRENT
CURRENT
DVD CHIP
DAC
DAC
DAC
(Figure
______________________________________________________________________________________
SmartSleep and Bidirectional Video Support
8). The YIN, CIN, and CVBSIN sig-
0.1μF
0V OR
+3.3V
+3.3V
LOGIC
HIGH
SMARTSLEEP
EXTCVBSIN
INT/EXT
CVBSIN
SHDN
CIN
YIN
CLAMP
BUFFER
BUFFER
External Mode
ACTIVE VIDEO
4.3mA QUIESCENT
OFF
OFF
SUPPLY CURRENT
CVBS/S-Video Filter Amplifier with
CONTROL
DETECT
BUFFER
LOGIC
LPF
LPF
LPF
OFF
OFF
MAX9508
+3.3V
GND
V
DD
nals are ignored. The block drawing of the MAX9508 in
Figure
mode. SmartSleep does not function in external mode,
and the SMARTSLEEP input is ignored.
6dB
6dB
6dB
6dB
OFF
OFF
OFF
LOAD SENSE
LOAD SENSE
LOAD SENSE
LOAD SENSE
8 shows which circuits are off while in external
OFF
OFF
OFF
YOUT
CVBSOUT1
COUT
CVBSOUT2
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
TO Y/C SEPARATION
TO TFT LCD
TO TFT LCD
SVIDEO CHROMA
SVIDEO LUMA
CVBS
75Ω
SOURCE
VIDEO
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