Rainbow Electronics MAX9508 User Manual

Page 14

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MAX9508

Video Filter Amplifier with SmartSleep and
Bidirectional Video Support

14

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CVBS 1

CIN

YIN

EXTCVBSIN

COUT

YOUT

CVBSOUT1

CVBSIN

CVBSOUT2

LPF

GND

+3.3V

V

DD

CLAMP
OFF

LOAD SENSE

6dB

75Ω

75Ω

LPF

BUFFER

LOAD SENSE

BUFFER

BUFFER

6dB

LOAD SENSE

6dB

75Ω

LOAD SENSE

6dB

75Ω

LPF

MAX9508

2.9mA QUIESCENT

SUPPLY CURRENT

PLUS

OUTPUT LOAD CURRENT

SVIDEO
CHROMA

SVIDEO
LUMA

CVBS2

75Ω

CURRENT

DAC

CURRENT

DAC

VIDEO SIGNAL

PRESENT

CURRENT

DAC

VIDEO ENCODER

SHDN

INT/EXT

ACTIVE VIDEO

DETECT

SMARTSLEEP

CONTROL

LOGIC

+3.3V

+3.3V

0

TO

50mV

OFF

OFF

OFF

OFF

OFF

OFF

OFF

Figure 5. Full-Operation Mode with CVBSOUT2 Loaded

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