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19-1063; Rev 0; 4/96
MAX4103 Evaluation Kit
_______________General Description
The MAX4103 evaluation kit (EV kit) simplifies
evaluation of the MAX4103 high-speed, low-power,
broadcast-quality video amplifier. The EV kit circuit
demonstrates the MAX4103 in the noninverting
configuration, set to a gain of 2V/V.
The EV kit comes with the MAX4103 installed, but it can
also be used to evaluate the MAX4102. Simply order a
MAX4102 free sample, replace the MAX4103 with the
MAX4102 on the EV board, and change the gain-
setting resistors for the desired gain.
____________________________Features
o
180MHz -3dB Bandwidth
o
Optional Adjustable Gain
o
Fully Assembled and Tested
Evaluates: MAX4102/MAX4103
______________Ordering Information
____________________Component List
DESIGNATION QTY
U1
C1, C2
1
2
DESCRIPTION
MAX4103ESA
0.1µF, 10% ceramic capacitors
Vitramon VJ1206Y104KXX
10µF, 10V, 20% tantalum capacitors
AVX TAJB106M010 or
Sprague 293D106X0010B
75Ω, 5% resistors
390Ω, 5% resistors
SMA connectors
MAX4102/MAX4103 data sheet
PART
MAX4103EVKIT-SO
TEMP. RANGE
+25°C
BOARD TYPE
Surface Mount
Note: To evaluate the MAX4102, request a MAX4102ESA free
sample.
C3, C4
R1, R2
R
F
, R
G
IN, OUT
None
2
2
2
2
1
_________________________Quick Start
The MAX4103 EV kit is fully assembled and tested.
Follow these steps to verify board operation.
1) The circuit requires supply voltages of ±5V. Connect
these supplies to the corresponding pads marked
V
CC
and V
EE
. Connect the power-supply ground to
the pad marked GND.
2) Connect the output marked OUT to an oscilloscope
through a terminated 75Ω cable.
3) Turn on the power supplies.
4) Apply a signal of ±1.7Vpk maximum to the SMA con-
nector marked IN.
5) Verify the output signal on the oscilloscope.
______________Component Suppliers
SUPPLIER
AVX
Sprague
Vishay/Vitramon
PHONE
(803) 946-0690
(603) 224-1961
(203) 268-6261
FAX
(803) 626-3123
(603) 224-1430
(203) 452-5670
________________________________________________________________
Maxim Integrated Products
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For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAX4103 Evaluation Kit
Evaluates: MAX4102/MAX4103
_______________Detailed Description
Voltage-Gain Adjustment
The MAX4103 gain can be adjusted with minor modifi-
cations to the evaluation board.
1) Referring to the section
Choosing Resistor Values
in
the MAX4102/MAX4103 data sheet, select the feed-
back (R
F
) and gain-setting (R
G
) resistors for the
desired gain.
2) Install R
F
and R
G
.
capacitors C1 and C2 have been placed as close to
the MAX4103 supply pins as possible. The unused pins
have been grounded to prevent unwanted noise from
coupling into the circuit.
To reduce harmonic distortion, the input connector (IN),
input termination resistor (R1), and gain-setting resistor
(R
G
) meet the PC board ground plane at a single point.
As a result, input current (through R1) and feedback
current (through R
G
) will flow back to the source rather
than mix with the output current and cause distortion.
Refer to the
Grounding, Bypassing, and PC Board
Layout
section of the MAX4102/MAX4103 data sheet
for more information.
Layout Considerations
The MAX4103 EV kit layout has been optimized for
high-speed signals, with careful attention given to
grounding, power-supply bypassing, and signal-path
layout. The small, surface-mount, ceramic bypass
V
CC
C4
10µF, 10V
C3
10µF, 10V
V
EE
GND
C1
0.1µF
C2
0.1µF
IN
R1
75Ω
3
4
7
U1
MAX4103
2
5
1
8
OUT
R2
75Ω
R
G
390Ω
R
F
390Ω
Figure 1. MAX4103 EV Kit Schematic
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_______________________________________________________________________________________
MAX4103 Evaluation Kit
Evaluates: MAX4102/MAX4103
Figure 2. MAX4103 EV Kit Component Placement Guide—
Component Side
Figure 3. MAX4103 EV Kit Component Placement Guide—
Solder Side
_______________________________________________________________________________________
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MAX4103 Evaluation Kit
Evaluates: MAX4102/MAX4103
Figure 4. MAX4103 EV Kit PC Board Layout—Component Side
Figure 5. MAX4103 EV Kit PC Board Layout—Solder Side
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1996 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.

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