MAX9512ATE+T Maxim Integrated Products, MAX9512ATE+T Datasheet - Page 10

• Manufacturer Part Number: MAX9512ATE+T
• Description: IC VIDEO FILTER AMP 16-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX9512ATE+T

• Applications: Filter
• Number Of Circuits: 1
• Current - Supply: 13mA
• Voltage - Supply, Single/dual (±): 2.7 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Number Of Channels: 1
• Operating Supply Voltage: 2.5 V
• Supply Current: 7 uA
• Minimum Operating Temperature: - 40 C
• Maximum Operating Temperature: + 85 C
• Maximum Dual Supply Voltage: 5.25 V
• Minimum Dual Supply Voltage: 2 V
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX9512ATE+TTR

Video Filter Amplifier with SmartSleep
and Y/C Mixer Circuit
In the Typical Application Circuit (Figure 1), the current
DACs on a video encoder generate luma and chroma
video signals. The MAX9512 filters those signals and
then adds them together to create the composite video
signal. The output amplifiers drive the video connectors
through a 75Ω back termination resistor.
The SmartSleep feature is activated when the
SMARTSLEEP input is connected to logic high. The
SmartSleep feature provides intelligent power manage-
ment by selectively disabling the filters and output ampli-
fiers based on the presence of a luma video signal or
Figure 2. Standby Mode Operation
10
______________________________________________________________________________________
VIDEO ENCODER
CURRENT
CURRENT
DAC
DAC
+3.3V
Detailed Description
NO VIDEO
SIGNAL
SMARTSLEEP
SmartSleep Feature
SHDN
CIN
YIN
MAX9512
BUFFER
BUFFER
OFF
OFF
ACTIVE VIDEO
CONTROL
DETECT
LOGIC
LPF
LPF
OFF
OFF
7μA
OFF
loads attached to the outputs. If the SmartSleep feature
is not activated and the part is not in shutdown, the filters
and output amplifiers completely turn on, regardless of
whether there is a video signal at the YIN input and
whether there are loads connected at the outputs.
SmartSleep only works with DC-coupled loads.
In standby mode, the filters and output amplifiers are
off and only the active video detect circuit is opera-
tional. Quiescent current consumption is approximately
7µA (Figure 2). The active video detect circuit checks if
sync is present on the YIN signal. If no sync is detected
the device remains in standby mode.
+3.3V
GND
V
DD
6dB
6dB
6dB
6dB
OFF
OFF
OFF
OFF
LOAD SENSE
LOAD SENSE
LOAD SENSE
LOAD SENSE
OFF
OFF
OFF
OFF
YOUT
CVBSOUT1
COUT
CVBSOUT2
75Ω
75Ω
75Ω
75Ω
Standby Mode
CHROMA
CVBS1
CVBS2
LUMA