MAX9121EVKIT Maxim Integrated, MAX9121EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX9121EVKIT
• Description: LVDS Interface IC Evaluation Kit for the MAX9121 MAX9122 MAX9123
• Manufacturer: Maxim Integrated

Specifications of MAX9121EVKIT

• Number Of Drivers: 4
• Number Of Receivers: 4
• Data Rate: 500 Mbps
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Power Dissipation: 755 mW
• Propagation Delay Time: 2.7 ns
• Supply Current: 25 uA

The MAX9121 EV kit is a fully assembled and tested sur-
face-mount board. The EV kit contains an LVDS differen-
tial line driver located on the upper-half circuit, and
receiver located on the lower-half circuit.
• DC power supplies:
•
•
•
MAX9121 Evaluation Kit
Table 1. Input Signals to Driver Circuit
Using JU2 to JU5
Table 2. Driver Probing Connections
2
JUMPER
CHANNEL NAME
supplies for operating the driver and receiver with
independent supplies (with R49 and R50 shorts cut
open)
One 3.3V ±0.3V, 400mA or
Two 3.3V ±0.3V, 200mA
Signal generator for LVDS signal input
(e.g., HP 8131A)
Differential probe (e.g., Tektronix P6248)
Digital sampling oscilloscope or logic analyzer
(e.g., Tektronix 11801C)
_______________________________________________________________________________________
JU2
JU3
JU4
JU5
Channel 1
Channel 2
Channel 3
Channel 4
2 and 3 connected to GND
2 and 3 connected to GND
2 and 3 connected to GND
2 and 3 connected to GND
1 and 2 connected to VCC
1 and 2 connected to VCC
1 and 2 connected to VCC
1 and 2 connected to VCC
SHUNT LOCATION
Recommended Equipment
IC OUTPUT
PIN NAME
OUT1+
OUT2+
OUT3+
OUT4+
OUT1-
OUT2-
OUT3-
OUT4-
Quick Start
TESTING
DOUT1+
DOUT2+
DOUT3+
DOUT4+
DOUT1-
DOUT2-
DOUT3-
DOUT4-
POINT
DRIVER INPUT
IN1 = high
IN2 = high
IN3 = high
IN4 = high
IN1 = low
IN2 = low
IN3 = low
IN4 = low
SIGNAL
PROBING HEADER (4 PIN), PIN NO.
JU10, pins 2 (+) and 1 (-)
JU10, pins 3 (+) and 4 (-)
JU7, pins 2 (+) and 1 (-)
JU7, pins 3 (+) and 4 (-)
JU8, pins 2 (+) and 1 (-)
JU8, pins 3 (+) and 4 (-)
JU9, pins 2 (+) and 1 (-)
JU9, pins 3 (+) and 4 (-)
Follow the steps below to verify driver circuit operation.
Do not turn on the power supply until all connec-
tions are completed:
1) Verify that a shunt is across jumper JU1 (EN) pins 1
2) Connect a differential probe across pins 2 and 3 of
3) Connect a 3.3V, 400mA power supply to the VCC1
4) Connect a function generator that provides a
5) Turn on the power supply, enable the function gen-
Note: For connections to verify every channel, see
Table 2.
Follow the steps below to verify receiver circuit operation.
Do not turn on the power supply until all connections
are completed:
1) Verify that the shunt is across jumper JU15 (EN)
2) Connect a scope probe across JU25 (OUT1) to
3) Connect a 3.3V, 400mA power supply to the VCC2
and 2.
jumper JU7.
pad. Connect the supply ground to the GND pad
closest to VCC1.
square wave to the input of the driver circuit SMA
connector DIN1 with the following setting:
a) Frequency = 10MHz
b) V
c) Duty cycle = 50%
erator, and verify the differential output signal V
= (OUT1+ - OUT1-).
pins 1 and 2.
observe the output signal.
pad. Connect the supply ground to the GND pad
closest to VCC2.
IL
= 0.00V, V
IH
= 3.00V
Evaluating the Receiver
Evaluating the Driver
PROBING (OUT+ - OUT-)
JU10, pins 2 (+) and 3 (-)
JU7, pins 3 (+) and 2 (-)
JU8, pins 2 (+) and 3 (-)
JU9, pins 3 (+) and 2 (-)
(MAX9123) Circuit
(MAX9121) Circuit
OD