19-2896; Rev 0; 6/03
MAX7438 Evaluation Kit
General Description
The MAX7438 evaluation kit (EV kit) is a fully assembled
and tested surface mount board. The MAX7438 EV kit
includes the MAX7438, a three-channel standard-defin-
ition video reconstruction filter with a back-porch clamp
that sets the output blanking level of the video signal to
ground. The MAX7438 has an internal gain of +2V/V,
and the EV kit provides five levels of high-frequency
boost. The EV kit operates from 鹵5V dual supplies.
The MAX7438 EV kit can also be used to evaluate the
MAX7439, which is a three-channel, standard-definition
video reconstruction filter with an internal gain of +3V/V.
鈾?/div>
鹵5.0V Power Supplies
o
Selectable Input 75鈩?Termination or DAC
Termination
o
Selectable 75鈩?Output Series Termination
o
Selectable High-Frequency Boost Levels
o
Surface-Mount Construction
o
Fully Assembled and Tested
Features
Evaluates: MAX7438/MAX7439
Component List
DESIGNATION
C1, C2
QTY
2
DESCRIPTION
1碌F 鹵20%, 6.3V X5R ceramic
capacitors (0603)
Taiyo Yuden JMK107BJ105MA
0.1碌F 鹵10%, 16V X7R ceramic
capacitors (0603)
Taiyo Yuden EMK107BJ104KA
TDK C1608X7R1C104KT
BNC PC board-mount jack
connectors
2-pin headers
3-pin headers
10k鈩?鹵1% resistors (0603)
75k鈩?鹵1% resistors (0603)
5.11k鈩?鹵1% resistors (0603)
56.2k鈩?鹵1% resistors (0603)
82.5k鈩?鹵1% resistors (0603)
33.2k鈩?鹵1% resistors (0603)
61.9k鈩?鹵1% resistors (0603)
75鈩?鹵1% resistors (0603)
200鈩?鹵1% resistors (0603)
162鈩?鹵1% resistors (0603)
Three-circuit terminal block
MAX7438ETP (20-pin thin QFN
5mm x 5mm)
Shunts
MAX7438 PC board
PART
MAX7438EVKIT
Ordering Information
TEMP RANGE
0擄C to +70擄C
IC PACKAGE
20 Thin QFN-EP*
*EP = Exposed paddle.
Note:
To evaluate the MAX7439, please order a MAX7439ETP
free sample with the MAX7438EVKIT.
C3, C4
2
IN1, OUT1, IN2,
OUT2, IN3, OUT3
JU1鈥揓U22,
JU24, JU26
JU23, JU25, JU27
R1, R5, R13, R21
R2, R10, R18
R3, R11, R19
R4, R9, R12, R17,
R20, R25
R6, R14, R22
R7, R15, R23
R8, R16, R24
R26鈥揜29, R31, R33
R30, R32, R34
R35, R36, R37
TB1
U1
None
None
Quick Start
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鹵5.0V dual DC power supplies
鈥?/div>
Video signal generator (e.g., Tektronix TG 2000)
6
24
3
4
3
3
6
3
3
3
6
3
3
1
1
3
1
Recommended Equipment
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Video measurement equipment (e.g., Tektronix VM
700A)
The MAX7438 EV kit is a fully assembled and tested
surface-mount board. Follow the steps below to verify
board operation.
Do not turn on the power supply
until all connections are completed:
Evaluating Channel 1
1) Verify that there are shunts across jumpers JU6,
JU22, JU24, and JU26.
2) Verify that a shunt is installed across pins 1 and 2
on jumpers JU23, JU25, and JU27.
3) Verify that the rest of the jumpers are open.
4) Connect the output of the video signal generator to
the IN1 BNC connector on the EV kit.
5) Connect the OUT1 BNC connector on the EV kit to
the input of the video measurement equipment.
________________________________________________________________
Maxim Integrated Products
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
Maxim
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