19-2779; Rev 0; 6/03
MAX3873A Evaluation Kit
General Description
The MAX3873A evaluation kit (EV kit) simplifies evaluation
of the MAX3873A, a low-power 2.488Gbps/2.67Gbps
clock recovery and data retiming IC. The EV kit enables
testing of all the MAX3873A functions. SMA connectors
are provided for the differential CML-compatible data and
clock outputs. The differential data and clock outputs
have on-board AC-coupling capacitors to allow direct
connection to a high-speed oscilloscope. The MAX3873A
EV kit is configured for 3.3V operation and consumes up
to 150mA.
Features
o
SMA Connections for All System I/Os
o
Test Point for Monitoring Loss-of-Lock (LOL)
o
Single 3.3V Power-Supply Operation
o
Fully Assembled and Tested
Evaluates: MAX3873A
Ordering Information
PART
TEMP RANGE
IC PACKAGE
20 QFN-EP* (4mm x 4mm)
MAX3873AEVKIT -40擄C to +85擄C
*EP
= Exposed pad.
Component List
DESIGNATION
C1鈥揅6,
C10鈥揅22
C7
C8
C9
C23鈥揅26
D1
J1鈥揓6
J9鈥揓12
JU1鈥揓U5, JU9,
JU11
JU6鈥揓U8, JU10
JU6鈥揓U8, JU10
L1鈥揕4
R1
V
CC
, GND
U1
None
None
QTY
19
1
1
1
0
1
6
0
0
4
4
4
1
2
1
1
1
DESCRIPTION
0.1碌F 鹵10% ceramic capacitors
(0402)
0.022碌F 鹵10% ceramic capacitor
(0402)
33碌F 鹵20% tantalum capacitor
2.2碌F 鹵10% ceramic capacitor
(1206)
Not installed
Red LED
SMA connectors (edge-mount)
Not installed
Not installed
3-pin headers (0.1in centers)
Shunts
56nH inductors
392鈩?鹵1% resistor (0402)
Test points
MAX3873AEGP (20-pin QFN)
4mm x 4mm
MAX3873A evaluation kit
MAX3873A data sheet
Detailed Description
The MAX3873A EV kit is fully assembled and factory
tested. It enables testing of all MAX3873A functions.
Test Equipment Required
鈥?3.3V power supply with 300mA current capability
鈥?Signal-source, 2.7Gbps minimum capability
鈥?Jitter analyzer capable of 2.7Gbps performance
鈥?Oscilloscope with at least 3GHz performance
Connections
The serial data inputs (SDI+, SDI-) have on-board AC-
coupling capacitors. All the MAX3873A data and clock
outputs (SDO+, SDO-, SCLKO+, SCLKO-) are internally
terminated to 50鈩?and have on-board AC-coupling
capacitors. Configured in this way, these outputs can
be directly connected to the 50鈩?inputs of a high-
speed oscilloscope for analysis.
Setup
1) Select either 2.488Gbps or 2.67Gbps with JU10
(RATESET).
2) Enable/Disable FASTRACK capture mode with JU6
(FASTRACK).
3) Enable/Disable Clock output with JU8 (SCLKEN).
4) Select amplitude of CML outputs to high/medium/low
with JU7 (MODE).
5) Connect a 2.488Gbps/2.67Gbps PRBS NRZ signal to
(SDI+, SDI-) inputs with 50鈩?cables.
6) Connect the (SDO+, SDO-, SCLKO+, SCLKO-) out-
puts to a 50鈩?high-speed oscilloscope. Terminate
unused outputs with 50鈩?
________________________________________________________________
Maxim Integrated Products
1
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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