max9513atet Maxim Integrated Products, Inc., max9513atet Datasheet - Page 13

• Manufacturer Part Number: max9513atet
• Description: Max9513 Cvbs Video Filter Amplifier With Smartsleep And Bidirectional Video Support
• Manufacturer: Maxim Integrated Products, Inc.

If a load is connected to an output, the corresponding
filter and amplifier turn on and remain on until the out-
put load is disconnected. In full-operation mode,
SmartSleep intelligently reduces the supply current
based on the input signal presence and output loading.
Figures 4, 5, and 6 show which portions of the
MAX9513 turn on and which remain off with different
load configurations.
When an amplifier is on, it continually checks if the load
has been disconnected by detecting if the amplifier
Figure 4. Full-Operation Mode with CVBSOUT1 Loaded
CURRENT
50mV
TO
DAC
0
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
CVBS Video Filter Amplifier with SmartSleep
+3.3V
VIDEO SIGNAL
PRESENT
+3.3V
SMARTSLEEP
EXTCVBSIN
INT/EXT
CVBSIN
SHDN
Full-Operation Mode
CLAMP
OFF
ACTIVE VIDEO
CONTROL
DETECT
LOGIC
BUFFER
LOAD CURRENT
2.9mA PLUS
and Bidirectional Video Support
LPF
+3.3V
GND
V
output is sourcing current during a horizontal line time.
If no sourcing current is detected within one horizontal
line time (approximately 64µs), the load has been dis-
connected and the amplifier returns to active-detect
mode. If, at any time, the input video signal is removed,
the MAX9513 returns to standby mode.
If the SmartSleep feature is not activated and the part is
not in shutdown, the filters and amplifiers completely
turn on, regardless of whether there is a video signal at
the CVBSIN input and whether there are loads connect-
ed at the outputs.
DD
6dB
6dB
OFF
MAX9513
LOAD SENSE
LOAD SENSE
CVBSOUT1
CVBSOUT2
75Ω
75Ω
CVBS1
CVBS2
75Ω
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