19-2476; Rev 1; 10/04
M A X 3 7 8 4 Ev a l u a t i o n K i t
_______________ Ge n e r a l De s c r i p t i o n
The MAX3784 evaluation kit (EV kit) simplifies
evaluation of the MAX3784 5Gbps equalizer with
increased output signal amplitude. The EV kit
enables testing of all device functions.
SMA
connectors with 50
W
controlled impedance to the
MAX3784 are provided for all high-speed ports to
facilitate connection to test equipment.
___________________________ Fe a t u r e s
Ev a l u a t e s : M A X 3 7 8 4
Fully Assembled and Tested
Fully Matched for Best Return Loss
SMA Connectors for All High-Speed Inputs and
Outputs
Calibration Test Strip
____________________ Co m p o ne n t L i s t
DESIGNATION QTY
C1
C2–C9
L1
J3–J6
J9
TP1, TP2, TP7,
TP8
1
8
1
4
1
4
DESCRIPTION
33
m
F tantalum capacitor
AVX TAJC336K010
0.1
m
F
10%, 10V min
ceramic capacitors (0402)
4.7
m
H inductor
Coilcraft 1008CT040XJBC
SMA connectors, edge
mount, tab contact
EFJohnson 142-0701-851
2-pin header, 0.1in center
Test points
Digi-Key 5000K-ND
MAX3784, 16-pin QFN
Note:
U1 has an exposed
pad, which requires that it be
solder-attached to the circuit
board to ensure proper
functionality of the part.
MAX3784/MAX3784A EV kit
circuit board, rev B
_______________ Or d e r i n g I n f o r m a t i o n
PART
MAX3784EVKIT
TEMP RANGE
0
C to +85
C
IC PACKAGE
16 QFN
______________ Co m p o ne n t Su p p l i e r s
SUPPLIER
AVX
Coilcraft
Murata
PHONE
843-444-2863
847-639-6400
415-964-6321
FAX
843-626-3123
847-639-1469
415-964-8165
U1
1
None
1
_________________________________________________________________Maxim
Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
M A X 3 7 8 4 Ev a l u a t i o n K i t
_________________________ Qu i c k St a r t
1) Connect a +3.3V power supply to TP1 (V
CC
).
Connect the power supply ground to TP2.
2) Connect a differential signal between 400mV and
1000mV to the inputs IN+ and IN- using 50
W
cables.
3) If not already done, disconnect jumper test point J9.
This ensures that the part is enabled and not in
standby mode.
4) Connect signals OUT+ and OUT- to a >10GHz
oscilloscope with 50
W
input terminations. Monitor
output signals.
5) The signal generator should produce a short run
length (CID < 20), DC-balanced pattern such as a
PRBS 2
7
- 1 or K28.5. Set the data rate to 5Gbps.
6) Evaluation: After the board has been initially
checked out, evaluation can begin with a FR4 PC
board. It is advisable to start with a board length of
20in and then progress to longer lengths.
Ev a l u a t e s : M A X 3 7 8 4
TP1
VCC
TP2
GND
L1
4.7uH
C1
33uF
C2
0.1uF
C3
0.1uF
C4
0.1uF
C5
0.1uF
VCC
TP7 TP8
J7
CALIN
J8
CALOUT
J9
VCC
1
J3
J4
C7
0.1uF
C6
0.1uF
2
3
4
16
NC
V
CC
IN+
IN-
GND
NC
U1
MAX3784A
EP*
GND
V
CC
15
NC
14
NC
13
EN
12
11
10
9
GND
NC
C8
0.1uF
C9
0.1uF
J6
J5
V
CC
OUT+
OUT-
VCC
5
* EXPOSED PAD IS CONNECTED TO GND
6
7
8
VCC
Figure 1. MAX3784A EV Kit Schematic
2
_________________________________________________________________________________________
M A X 3 7 8 4 Ev a l u a t i o n K i t
Ev a l u a t e s : M A X 3 7 8 4
Figure 2. MAX3784 EV Kit PC Component Placement
Guide—Component Side
Figure 5. MAX3784 EV Kit PC Board Layout—
Power Plane
Figure 3. MAX3784 EV Kit PC Board Layout—
Component Side
Figure 6. MAX3784 EV Kit PC Board Layout—
Solder Side
Figure 4. MAX3784 EV Kit PC Board Layout—
Ground Plane
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600___________________
3
2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products
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