19-2993; Rev 0; 10/03
MAX7445 Evaluation Kit
General Description
The MAX7445 evaluation kit (EV kit) is a fully assembled
and tested surface-mount board. The MAX7445 EV kit
includes a MAX7445 4-channel video-reconstruction filter,
ideal for anti-aliasing and digital-to-analog converter
(DAC)-smoothing video applications. The EV kit provides
three different output buffer-gain settings. The input signal
is AC-coupled, and the output signal can be DC- or AC-
coupled. The EV kit operates from a single +5V supply.
The MAX7445 EV kit can be used to evaluate the
MAX7445鈥揗AX7449.
o
Single +5V Power Supply
o
Selectable Input 75鈩?Termination or DAC
Termination
o
Selectable AC- or DC-Output Couple
o
Selectable Output Buffer Gains (MAX7445)
o
Surface-Mount Construction
o
Fully Assembled and Tested
Features
Evaluates: MAX7445鈥揗AX7449
Component List
DESIGNATION
QTY
DESCRIPTION
1碌F 卤20%, 6.3V X5R ceramic
capacitor (0603)
Taiyo Yuden JMK107BJ105MA or
equivalent
0.1碌F 卤10%, 16V X7R ceramic
capacitors (0603)
Taiyo Yuden EMK107BJ104KA or
TDK C1608X7R1C104KT or
equivalent
220碌F 卤20%, 6.3V aluminum
electrolytic capacitors
(6.3mm x 6.0mm)
Sanyo 6CV220AX
50鈩?BNC PC board mount-jack
connector
75鈩?BNC PC board mount-jack
connectors
3-pin headers
2-pin headers
75鈩?卤1% resistors (0603)
200鈩?卤1% resistors (0603)
162鈩?卤1% resistors (0603)
0鈩?resistor (0603)
2-circuit terminal block
MAX7445EUD (14-pin TSSOP)
Shunts
MAX7445 PC board
PART
MAX7445EVKIT
Ordering Information
TEMP RANGE
0掳C to +70掳C
IC PACKAGE
14 TSSOP-EP*
C1
1
*EP
= Exposed pad.
Note:
To evaluate the MAX7446鈥揗AX7449, order a free sample
of the MAX7446EUD鈥揗AX7449EUD with the MAX7445EVKIT.
C2鈥揅6
5
Quick Start
The following equipment is recommended:
鈥?Single +5V 500mA DC power supply
鈥?/div>
鈥?/div>
Video signal generator (e.g., Tektronix TG 2000)
Video measurement equipment
(e.g., Tektronix VM 700A)
C7鈥揅10
4
EXTSYNC
IPA-IPD,
OPA-OPD
JU1鈥揓U7
JU8鈥揓U16
R1鈥揜8
R9鈥揜12
R13鈥揜16
R17
TB1
U1
None
None
1
8
7
8
8
4
4
1
1
1
15
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The MAX7445 EV kit is a fully assembled and tested
surface-mount board. Follow the steps below to verify
the 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 JU5
(pins 2 and 3, GAIN = +6.0dB), JU6 (pins 2 and 3,
SELECT = GND), and JU7 (pins 2 and 3, output
enabled).
2) Verify that a shunt is installed across pins 1 and 2
of jumpers JU1鈥揓U4 (75鈩?termination).
3) Verify that there are shunts across jumpers JU8,
JU10, JU11, and JU12.
4) Verify that the remaining jumpers are open.
5) Connect the output of the video signal generator to
the IPA BNC connector on the EV kit.
________________________________________________________________
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.
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