max9508atet Maxim Integrated Products, Inc., max9508atet Datasheet - Page 16

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

CVBS/S-Video Filter Amplifier with
SmartSleep and Bidirectional Video Support
Set the INT/EXT control input low for internal mode. The
MAX9508 processes video signals from an internal
Figure
16
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7. Internal Mode Operation for Portable DVD Applications
Internal Mode Versus External Mode
MICROCONTROLLER
CURRENT
CURRENT
CURRENT
DVD CHIP
DAC
DAC
DAC
+3.3V
0.1μF
LOGIC
LOW
SMARTSLEEP
EXTCVBSIN
INT/EXT
CVBSIN
SHDN
CIN
YIN
CLAMP
OFF
Internal Mode
BUFFER
BUFFER
ACTIVE VIDEO
SUPPLY CURRENT
13mA QUIESCENT
CONTROL
DETECT
BUFFER
LOGIC
LPF
LPF
LPF
MAX9508
+3.3V
GND
V
DD
source such as a DVD chip
plexer selects the video signal on CVBSIN. The
EXTCVBSIN video signal is ignored.
0.1μF
6dB
6dB
6dB
6dB
LOAD SENSE
LOAD SENSE
LOAD SENSE
LOAD SENSE
YOUT
COUT
CVBSOUT1
CVBSOUT2
75Ω
75Ω
75Ω
75Ω
75Ω
75Ω
(Figure
7). The 2:1 multi-
TO Y/C SEPARATION
TO TFT LCD
TO TFT LCD
SVIDEO CHROMA
SVIDEO LUMA
CVBS