19-2779; Rev 0; 6/03
MAX3873A Evaluation Kit
General Description
Features
ꢀ SMA Connections for All System I/Os
ꢀ Test Point for Monitoring Loss-of-Lock (LOL)
ꢀ Single 3.3V Power-Supply Operation
ꢀ Fully Assembled and Tested
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.
Ordering Information
PART
TEMP RANGE
IC PACKAGE
MAX3873AEVKIT -40°C to +85°C 20 QFN-EP* (4mm x 4mm)
*EP = Exposed pad.
Component List
Detailed Description
The MAX3873A EV kit is fully assembled and factory
tested. It enables testing of all MAX3873A functions.
DESIGNATION
QTY
DESCRIPTION
C1–C6,
C10–C22
0.1µF 10ꢀ ꢁcermꢂꢁ ꢁrarꢁꢂtoeꢃ
(0402)
19
Test Equipment Required
• 3.3V power supply with 300mA current capability
0.022µF 10ꢀ ꢁcermꢂꢁ ꢁrarꢁꢂtoe
(0402)
C7
C8
C9
1
1
1
• Signal-source, 2.7Gbps minimum capability
• Jitter analyzer capable of 2.7Gbps performance
• Oscilloscope with at least 3GHz performance
33µF 20ꢀ trꢄtrꢅlm ꢁrarꢁꢂtoe
2.2µF 10ꢀ ꢁcermꢂꢁ ꢁrarꢁꢂtoe
(1206)
C23–C26
D1
0
1
6
0
Not ꢂꢄꢃtrꢅꢅcd
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 50Ω and have on-board AC-coupling
capacitors. Configured in this way, these outputs can
be directly connected to the 50Ω inputs of a high-
speed oscilloscope for analysis.
Rcd LED
J1–J6
J9–J12
SMA ꢁoꢄꢄcꢁtoeꢃ (cdgc-molꢄt)
Not ꢂꢄꢃtrꢅꢅcd
JU1–JU5, JU9,
0
Not ꢂꢄꢃtrꢅꢅcd
JU11
JU6–JU8, JU10
JU6–JU8, JU10
L1–L4
4
4
4
1
2
3-aꢂꢄ hcrdceꢃ (0.1ꢂꢄ ꢁcꢄtceꢃ)
Shlꢄtꢃ
Setup
1) Select either 2.488Gbps or 2.67Gbps with JU10
(RATESET).
56ꢄH ꢂꢄdlꢁtoeꢃ
R1
392Ω 1ꢀ ecꢃꢂꢃtoe (0402)
Tcꢃt aoꢂꢄtꢃ
2) Enable/Disable FASTRACK capture mode with JU6
(FASTRACK).
V
, GND
CC
MAX3873AEGP (20-aꢂꢄ QFN)
4mm x 4mm
U1
1
3) Enable/Disable Clock output with JU8 (SCLKEN).
4) Select amplitude of CML outputs to high/medium/low
with JU7 (MODE).
Noꢄc
Noꢄc
1
1
MAX3873A cvrꢅlrtꢂoꢄ kꢂt
MAX3873A drtr ꢃhcct
5) Connect a 2.488Gbps/2.67Gbps PRBS NRZ signal to
(SDI+, SDI-) inputs with 50Ω cables.
6) Connect the (SDO+, SDO-, SCLKO+, SCLKO-) out-
puts to a 50Ω high-speed oscilloscope. Terminate
unused outputs with 50Ω.
________________________________________________________________ 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.