參數(shù)資料
型號: MAX9508
廠商: Maxim Integrated Products, Inc.
英文描述: Video Filter Amplifier with SmartSleep and Bidirectional Video Support
中文描述: 視頻濾波放大器,提供SmartSleep,支持雙向視頻
文件頁數(shù): 11/25頁
文件大?。?/td> 414K
代理商: MAX9508
M
Video Filter Amplifier with SmartSleep and
Bidirectional Video Support
______________________________________________________________________________________
11
CVBS 1
CIN
YIN
EXTCVBSIN
COUT
YOUT
CVBSOUT1
CVBSIN
CVBSOUT2
LPF
GND
+3.3V
V
DD
CLAMP
OFF
LOAD SENSE
6dB
75
75
LPF
BUFFER
LOAD SENSE
BUFFER
BUFFER
6dB
LOAD SENSE
6dB
75
LOAD SENSE
6dB
75
LPF
MAX9508
7
μ
A
SVIDEO
CHROMA
SVIDEO
LUMA
CURRENT
DAC
CURRENT
DAC
NO VIDEO
SIGNAL
CURRENT
DAC
VIDEO ENCODER
SHDN
INT/EXT
ACTIVE VIDEO
DETECT
SMARTSLEEP
CONTROL
LOGIC
+3.3V
+3.3V
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
CVBS 2
Figure 2. Standby Mode
outputs. If the SmartSleep feature is not activated and
the part is not in shutdown, the filters and output ampli-
fiers completely turn on, regardless of whether there is
a video signal at the CVBSIN input and whether there
are loads connected at the outputs.
SmartSleep only works with DC-coupled loads.
Standby Mode
In standby mode, the filters and output amplifiers are
off and only the active video detect circuit is active.
Quiescent current consumption is approximately 7μA
(Figure 2). The active video-detect circuit checks if
sync is present on the CVBSIN signal. If no sync is
detected the device remains in standby mode.
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