19-1126; Rev 0; 9/96
MAX4135 Evaluation Kit
_______________General Description
The MAX4135 evaluation kit (EV kit) simplifies evalua-
tion of the MAX4135 one-input, six-output distribution
amplifier. The EV kit circuit demonstrates the MAX4135
in a fixed gain of 2V/V. RF-style connectors (SMA) and
75鈩?terminating resistors are included for video test-
equipment compatibility.
The EV kit comes with the MAX4135 installed, but can
also be used to evaluate the MAX4136, MAX4137, and
MAX4138 video distribution amplifiers. Contact Maxim
to order free samples.
____________________________Features
o
185MHz -3dB Bandwidth
o
Outputs Can Be Independently Enabled and
Disabled
o
Fully Assembled and Tested
Evaluates: MAX4135/MAX4136/MAX4137/MAX4138
_________________________Quick Start
The MAX4135 EV kit is fully assembled and tested.
Follow these steps to verify board operation.
Do not
turn on the power supply until all connections are
completed.
1) The circuit requires supply voltages of 卤5V. Connect
a +5V supply to the pad marked VCC. Connect a
-5V supply to the pad marked VEE. Connect the
power-supply ground to the pad marked GND.
2) Apply a signal in the +1.1V to -1.0V range to the
SMA connector marked IN.
3) Connect the output marked OUT1 to an oscilloscope
through a terminated 75鈩?cable.
4) On DIP switch SW1, set the
SEL1
switch to the on
position. Set all other switches to off.
5) Turn on the power supply and verify the output sig-
nal on the oscilloscope.
______________Ordering Information
PART
MAX4135EVKIT-SO
TEMP. RANGE
+25掳C
BOARD TYPE
Surface Mount
Note: Request free samples to evaluate the MAX4136EWG,
MAX4137EWG, or MAX4138EWG.
____________________Component List
DESIGNATION QTY
C2, C4,
C5, C6
C1, C3
IN,
OUT1鈥揙UT6
R1, R2, R3, R4,
R5, R6, R7
R8鈥揜13
RG
SW1
U1
None
None
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DESCRIPTION
0.1碌F, 10% ceramic capacitors
Vitramon VJ1206Y104KXX
10碌F, 10V, 20% tantalum capacitors
AVX TAJB106M010
Sprague 293D106X0010B
SMA connectors
75鈩? 5% resistors
100k鈩? 5% resistors
0鈩?resistor
DIP switch
MAX4135EWG
MAX4135 PC board
MAX4135/MAX4136 data sheet
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_______________Detailed Description
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Output Channel Selection
The MAX4135 provides TTL/CMOS-compatible, digital
control pins (SEL1鈥揝EL6) to enable or disable each
amplifier output. When the SEL_ input is low, the ampli-
fier is enabled; when it is high, the amplifier is disabled.
The EV kit uses a DIP switch (SW1) to manually
enable/disable outputs. When a switch is on, the
SEL
_
pin is connected to ground, and the corresponding
amplifier is enabled. When a switch is off, the SEL_ pin
is connected to +5V through a 100k鈩?pull-up resistor,
and the corresponding amplifier is disabled.
To use an external controller, set the desired
SEL_
switch(es) to on and connect the external controller to
the pad(s) labeled SEL_.
______________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
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