MAX7452ESA+ Maxim Integrated Products, MAX7452ESA+ Datasheet - Page 8
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MAX7452ESA+
Manufacturer Part Number
MAX7452ESA+
Description
Video ICs Video Conditioner wi th AGC and Back Porc
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX7452ESA.pdf
(9 pages)
Specifications of MAX7452ESA+
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Video-Signal Conditioners with AGC
and Back-Porch Clamp
Figure 3. MAX7452 Interfaced to a Video Decoder
for the analog-to-digital conversion. This voltage must
be scaled by a ratio of two resistors to set the black
level of the video signal to the appropriate level (to
match the input range of the converter).
If the ADC or video decoder has a built-in clamp circuit,
the output of the MAX7452 must be AC-coupled into
the ADC with the capacitor value recommended for the
converter. In this situation, set the BPLVL on the
MAX7452 to the midpoint of the specified range for
optimum performance. In addition, the stability of this
voltage is not critical, provided that it stays within the
specified range.
Bypass all supply pins to GND with 0.1µF and 1µF
capacitors. These capacitors filter higher frequencies in
the MHz range. Place all external components as close to
the devices as possible. Connect EP to V
MAX7450/MAX7451. Connect EP to GND for the
MAX7452. Placing the IC onto a copper area the size of
the pad is recommended for proper power dissipation.
Refer to the MAX7450 Evaluation Kit for a proven PC-
board layout example.
8
_______________________________________________________________________________________
VIDEO
INPUT
Power-Supply Bypassing and Layout
IN
V
V
SS
CC
FILTER
NOISE
SYNC SEPARATOR
AND AMPLITUDE
DETECTOR
±6dB
SS
BPLVL
for the
GAIN SET (0dB OR +6dB)
MAX7452
0 OR +6dB
TRANSISTOR COUNT: 6316
PROCESS: BiCMOS
*CONNECT EP TO V
OUT
V
SS
LOS
AGCD
(MAX7450/MAX7451)
TOP VIEW
BPLVL (MAX7452)
SS
FOR THE MAX7450/MAX7451
GND
V
CC
IN
1
2
4
3
ADC
VIDEO DECODER
REF
Pin Configuration
Chip Information
MAX7450
MAX7451
MAX7452
SO-EP*
DSP
6
8
7
5
LOS
OUT
GSET
AGCD