MAX9124EVKIT Maxim Integrated, MAX9124EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX9124EVKIT
• Description: Buffers & Line Drivers Evaluation Kit for the MAX9124 MAX9125 MAX9126
• Manufacturer: Maxim Integrated

Specifications of MAX9124EVKIT

• Number Of Input Lines: /
• Supply Voltage - Max: 3.3 V
• Interface: LVDS
• Logic Type: LVCMOS, LVTTL
• Number Of Channels Per Chip: 4

The MAX9124 EV kit is a fully assembled and tested
surface-mount board. The EV kit contains an LVDS dif-
ferential line driver located on the upper-half circuit,
and receiver located on the lower-half circuit.
Recommended equipment includes:
•
•
•
•
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 pins 1 and 2 of JU2 (EN).
2) Connect a differential probe across pins 2 and 3 of JU7.
3) Connect a function generator that provides a square
4) Connect a 3.3V, 400mA power supply to the VCC1
5) Turn on the power supply, enable the function gener-
Note: For connections to verify every channel, see
Table 2.
MAX9124 Evaluation Kit
Note: Please indicate that you are using the MAX9124/MAX9125/
MAX9126 when contacting these component suppliers.
2
AVX
Kemet
Murata
ator, and verify the differential output signal V
(OUT1+ - OUT1-).
pad. Connect the supply ground to the GND pad
closest to VCC1.
wave to the input of the driver circuit SMA connector
DIN1 with the following settings:
a) Frequency = 10MHz
b) V
c) Duty cycle = 50%
DC power supplies: one 3.3V ±0.3V, 400mA (or two
3.3V ±0.3V, 200mA supplies for powering the driver
and receiver independently with R49 and R50
shorts cut open)
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)
_______________________________________________________________________________________
Evaluating the Driver (MAX9124) Circuit
SUPPLIER
IL
= 0.00V, V
IH
Component Suppliers
= 3.00V
803-943-0690
408-986-0424
814-237-1431
Evaluating the Receiver
PHONE
(MAX9125) Circuit
Quick Start
803-626-3123
408-986-1442
814-238-0490
FAX
OD
=
Follow the steps below to verify receiver circuit opera-
tion. Do not turn on the power supply until all con-
nections are completed:
1) Verify that a shunt is across jumper JU16 (EN) pins 1
2) Connect a scope probe across JU25 (OUT1) to
3) Connect a function generator that provides square
4) Connect a 3.3V, 400mA power supply to the VCC2
5) Turn on the power supply and enable the function
Note: For connections to verify every channel, see
Table 3.
The MAX9124 EV kit is a fully assembled and tested
circuit board that includes a quad LVDS differential line
driver and receiver. The EV kit has two independent cir-
cuits. The upper-half circuit is a driver circuit and the
lower-half circuit is a receiver circuit. The two circuits
can be operated together or separately. Both circuits’
I/Os are specially designed for direct probing.
The EV kit is a four-layer PC board with 50Ω controlled-
impedance traces for all input signal traces with 49.9Ω
termination resistors. The two circuits can be linked by
connecting an output signal from the driver circuit to the
input of the receiver circuit. Each differential input pair
traces are laid out with less than 100mil length difference.
The MAX9124 EV kit contains two separate circuits that
can be operated with independent supplies after cut-
ting open the shorts at R49 and R50. Independent
power and ground planes allow measurements of the
receivers’ response to ground shift or other common-
mode effects. Each circuit requires a 3.3V, 200mA
power supply. In addition, if high-impedance delay
testing is to be performed, a 1.2V voltage supply is
required.
and 2.
pad. Connect the supply ground to the GND pad
closest to VCC2.
generator, then verify the output signal (OUT1) on the
scope.
waves to the input of the receiver circuit (connect the
noninverting signal to SMA connector RIN1+ and the
inverting signal to SMA connector RIN1-) with the fol-
lowing settings:
a) Frequency = 10MHz
b) V
c) Duty cycle = 50%
observe the output signal.
IL
= 1.10V, V
Using Separate Power Supplies
IH
= 1.30V
Detailed Description