19-2319; Rev 0; 1/02
MAX9121 Evaluation Kit
General Description
Features
ꢀ Independent Driver (MAX9123) and Quad Receiver
The MAX9121 evaluation kit (EV kit) contains a flow-
through low-voltage differential signaling (LVDS) quad
differential line driver (MAX9123) and receiver
(MAX9121). The differential line driver accepts LVTTL or
LVCMOS inputs and translates them to LVDS output sig-
nals. The receiver accepts LVDS inputs and translates
them to single-ended LVCMOS outputs. Both circuits
operate with high data rates and low power dissipation.
(MAX9121/MAX9122) Circuits
ꢀ >500Mbps (250MHz) Switching Rate
(MAX9121/MAX9122)
ꢀ >800Mbps (400MHz) Switching Rate (MAX9123)
ꢀ Supports Testing of Twisted-Pair Cables
ꢀ 50 Controlled-Impedance Traces
ꢀ 16-Pin TSSOP Package
The MAX9121 EV kit is designed with 50 controlled-
impedance traces in a four-layer PC board. It is spe-
cially designed for direct differential probing of the
LVDS I/O. Connection points are provided for the
attachment of a cable to carry the LVDS signals.
ꢀ Fully Assembled and Tested
Ordering Information
PART
TEMP RANGE
IC PACKAGE
The EV kit operates from a single 3.3V supply. In addi-
tion, a 1.2V power-supply input is provided for testing the
driver’s high-impedance propagation delays. A separate
supply option for the driver and receiver allows testing of
the common-mode performance of the receiver.
MAX9121EVKIT
0°C to +70°C
16 TSSOP
Note: To evaluate the MAX9122, request a MAX9122EUE free
sample with the MAX9121EVKIT.
Component Suppliers
The MAX9121 EV kit can also be used to evaluate the
MAX9122, which is the same as the MAX9121 but with
integrated 107 (nominal) termination resistors.
Additional pads on the board are provided for dynami-
cally driving the enable and disable control signals with
a pulse generator.
SUPPLIER
AVX
PHONE
FAX
803-943-0690
408-986-0424
814-237-1431
803-626-3123
408-986-1442
814-238-0490
Kemet
Murata
Note: Please indicate that you are using the MAX9121/MAX9122/
MAX9123 when contacting these component suppliers.
Component List
DESIGNATION
QTY
DESCRIPTION
DESIGNATION
QTY
DESCRIPTION
10µF 10%, 10V tantalum
capacitors (Case B)
AVX TAJB106K010R or
Kemet T494B106K010AS
Not installed, open resistor pads
(0603)
R41–R48
0
C1, C4, C9
3
Not installed, shorted resistor
pads (0603)
R49, R50
0
1000pF 10%, 50V X7R ceramic
chip capacitors (0402)
Murata GRM36X7R102K050A
JU1–JU6,
JU15–JU20
12
3-pin headers
C2, C11
2
6
JU7–JU14
8
8
4-pin headers
2-pin headers
0.1µF 10%, 16V X7R ceramic
chip capacitors (0603)
Murata GRM39X7R104K016A
10pF 0.1pF, 50V ceramic chip
capacitors (0402)
C3, C5–C8,
JU21–JU28
C10
DEN, DEN,
REN, REN
Not installed, SMA edge-mount
connectors
0
C12–C23
12
0
DIN1–DIN 4,
RIN1- to RIN4-,
RIN1+ to RIN4+
Murata GRM36COG100B050A
SMA edge-mount connectors
12
R1, R6, R23,
R24
Not installed, open resistor pads
(0402)
U1
1
1
8
1
1
1
MAX9123EUE (16-pin TSSOP)
MAX9121EUE (16-pin TSSOP)
Shunts (JU1, JU6, JU15–JU20)
MAX9121 PC board
R2–R5, R7–R22
R25–R28
20
4
49.9
100
1% resistors (0402)
1% resistors (0402)
1% resistors (0603)
U2
None
None
None
None
R29–R32
4
2.0k
R33–R40
8
0
resistors (0603)
MAX9121 EV kit data sheet
MAX9121/MAX9122 data sheet
________________________________________________________________ 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.