Evaluates: MAX7453
MAX7453 Evaluation Kit
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Quick Start
Recommended Equipment
Before beginning, the following equipment is needed:
• 5V DC power supply (VCC)
• Video signal generator (e.g., Tektronix TG2000 or
similar)
• Video measurement equipment (e.g., Tektronix
VM700A or similar)
Procedure
The MAX7453 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1) Verify that no shunts are installed across jumpers
JU1–JU4 (AC-coupled outputs).
2) Connect the luma output from the video signal gen-
erator to the Y_IN BNC connector on the EV kit.
3) Connect the chroma output from the video signal
generator to the C_IN BNC connector on the EV kit.
4) Connect the input of the video measurement equip-
ment to the Y_OUT, C_OUT, CV_OUT1, or
CV_OUT2 BNC connectors on the EV kit.
5) Connect the 5V supply to the VCC pad on the EV
kit. Connect the power-supply ground to the GND
pad on the EV kit.
6) Set the signal generator for the desired video sig-
nal, such as multiburst.
7) Turn on the 5V DC power supply.
8) Analyze the video output signals with the video
measurement equipment.
Detailed Description
The MAX7453 EV kit evaluates the MAX7453 triple-
channel video reconstruction filter and buffer. The EV
kit operates from a 5V single-supply voltage.
The MAX7453 EV kit uses 0.1µF ceramic capacitors to
AC-couple the video input signals to the YIN and CIN
input pins of the MAX7453. The input capacitor stores a
DC level such that the outputs are clamped to the
appropriate DC voltage level. Both video input termi-
nals have a 75Ω termination to ground.
The MAX7453 EV kit video output signals can be DC- or
AC-coupled. At default, all jumpers (JU1–JU4) have no
shunts installed and each of the outputs are configured
to drive AC-coupled video loads. As configured, YOUT
and COUT each drive a 150Ω video (75Ω backmatch
resistor plus a standard 75Ω video cable). The compos-
ite video output CVOUT drives two 150Ω video loads.
JU1–JU4 Jumper Selection
(Output Coupling)
The MAX7453 EV kit provides jumpers JU1–JU4 to con-
figure the video outputs to AC- or DC-coupling. At
default, each of the MAX7453’s AC-coupled outputs
include a 220µF series capacitor. To drive the output
video load directly, short the AC-coupling capacitor by
placing a shunt across the provided jumper. See Table
1 for shunt positions.
Table 1. JU1–JU4 Jumper Selection
(C_OUT, CV_OUT1, CV_OUT2, Y_OUT)
