19-1584; Rev 0; 10/99
MAX4 4 4 7 Eva lu a t io n Kit
Evluates:78/MAX49
Ge n e ra l De s c rip t io n
Fe a t u re s
♦ 430MHz Full-Power Bandwidth (MAX4447)
♦ 6500V/µs Slew Rate
The MAX4447 evaluation kit (EV kit) simplifies evaluation
of the MAX4447 high-speed differential line driver. The
EV kit includes the MAX4447, which has a fixed gain of
+ 2V/V, b ut it c a n a ls o b e us e d to e va lua te the
adjustable-gain MAX4448 (stable with a minimum gain
of +2V/V) or the MAX4449 (stable with a minimum gain
of +5V/V). To evaluate the MAX4448 or MAX4449, order
a free sample of the MAX4448ESE or MAX4449ESE
along with the MAX4447 EV kit.
♦ Proven PC Board Layout
♦ Fully Assembled and Tested Surface-Mount
Board
Co m p o n e n t Lis t
Ord e rin g In fo rm a t io n
DESIGNATION QTY
DESCRIPTION
PART
TEMP. RANGE
IC PACKAGE
MAX4447EVKIT
0°C to +70°C
16 SO
4.7µF ±20%, 10V tantalum capacitors
AVX TAJA475M010R
C1, C3
2
C2, C4
R1, R2, R3
RG
2
3
0
1
1
0.1µF ceramic capacitors
49.9Ω ±1% resistors
Not installed
Qu ic k S t a rt
JU1
2-pin header
The MAX4447 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.
None
Shunt (JU1)
IN, OUT-,
OUT+
3
SMA connectors
1) Connect a +5V power supply to the V
pin and
CC
U1
1
1
1
MAX4447ESE
a -5V power supply to the V pin. Connect power-
EE
supply ground to the GND pads.
None
None
MAX4447 EV kit PC board
MAX4447 EV kit data sheet
2) Ensure that the shunt is removed from jumper JU1.
3) Ap p ly a s ig na l of up to +1.5V p e a k to the SMA
connector marked IN.
MAX4447/MAX4448/MAX4449
data sheet
None
1
4) Connect the output marked OUT+ to a 50Ω terminated
oscilloscope input, and connect the output marked
OUT- to another 50Ω terminated oscilloscope input.
5) Turn on the power supply and verify the output sig-
nals on the oscilloscope. The output amplitude at
either of the two outputs (VOUT+, VOUT-) observed
on the oscilloscope will be the same as that on the
input. This is due to the multiplication of the +2 gain
with the voltage divider formed by the 49.9Ω back-ter-
minating resistor (R3) and the oscilloscope input termi-
nation. Note that the differential output (defined as
VOUT+ - VOUT-) will be twice the amplitude of the
input.
Co m p o n e n t S u p p lie rs
SUPPLIER
PHONE
FAX
AVX
803-946-0690
803-626-3123
Note: Please indicate that you are using the MAX4447,
MAX4448, or MAX4449 when contacting the component
supplier above.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.