MAXIM MAX9375 User Manual
General Description
The MAX9375 is a fully differential, high-speed, anything-to-LVPECL translator designed for signal rates up
to 2GHz. The MAX9375’s extremely low propagation
delay and high speed make it ideal for various highspeed network routing and backplane applications.
The MAX9375 accepts any differential input signal within
the supply rails and with minimum amplitude of 100mV.
Inputs are fully compatible with the LVDS, LVPECL,
HSTL, and CML differential signaling standards. Outputs
are LVPECL and have sufficient current to drive 50Ω
transmission lines.
The MAX9375 is available in an 8-pin µMAX package
and operates from a single +3.3V supply over the -40°C
to +85°C temperature range.
Applications
Backplane Logic Standard Translation
LAN
WAN
DSLAM
DLC
Features
♦ Guaranteed 2GHz Switching Frequency
♦ Accepts LVDS/LVPECL/Anything Inputs
♦ 421ps (typ) Propagation Delays
♦ 30ps (max) Pulse Skew
♦ 2ps
RMS
(max) Random Jitter
♦ Minimum 100mV Differential Input to Guarantee
AC Specifications
♦ Temperature-Compensated LVPECL Output
♦ +3.0V to +3.6V Power-Supply Operating Range
♦ >2kV ESD Protection (Human Body Model)
MAX9375
Single LVDS/Anything-to-LVPECL Translator
________________________________________________________________ Maxim Integrated Products 1
Pin Configuration
Ordering Information
19-2808; Rev 0; 4/03
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.
Functional Diagram
MAX9375EUA -40°C to +85°C 8 µMAX
PART TEMP RANGE PIN-PACKAGE
8
V
MAX9375
µMAX
CC
OUT
7
OUT
6
GND
5
LVDS/ANY
TOP VIEW
1
V
CC
IN
GND
2
IN
3
4
LVPECL
SINGLE TRANSLATOR
MAX9375
Single LVDS/Anything-to-LVPECL Translator
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCCto GND...........................................................-0.3V to +4.1V
Inputs (IN, IN).............................................-0.3V to (V
CC
+ 0.3V)
IN to IN................................................................................±3.0V
Continuous Output Current .................................................50mA
Surge Output Current .......................................................100mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 5.9mW/°C above +70°C) ..........470.6mW
θ
JA
in Still Air............................................................+170°C/W
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
ESD Protection
Human Body Model (IN, IN, OUT, OUT) .........................≥ 2kV
Soldering Temperature (10s) ...........................................+300°C
DC ELECTRICAL CHARACTERISTICS
(VCC= +3.0V to +3.6V, differential input voltage |VID| = 0.1V to 3.0V, input voltage (VIN, VIN) = 0 to VCC, input common-mode voltage
V
CM
= 0.05V to (VCC- 0.05V), LVPECL outputs terminated with 50Ω ±1% to VCC- 2.0V, TA= -40°C to +85°C. Typical values are at
V
CC
= +3.3V, |VID| = 0.2V, input common-mode voltage VCM= 1.2V, TA= +25°C, unless otherwise noted.) (Notes 1, 2, 3)
PARAMETER SYMBOL CONDITIONS
DIFFERENTIAL INPUTS (IN, IN)
Differential Input
Threshold
Input Current IIN, I INVIN, V IN = VCC or 0V -20 +20 -20 +20 -20 +20 µA
Input CommonMode Voltage
LVPECL OUTPUTS (OUT, OUT)
Single-Ended
Output High
Voltage
V
V
V
THD
Figure 1 0.05
CM
OH
-40°C +25°C +85°C
MIN TYP MAX MIN TYP MAX MIN TYP MAX
-100 +100 -100 +100 -100 +100 mV
VCC -
1.085
VCC -
1.017
V
CC
0.05
VCC -
0.880
VCC -
0.983
V
CC
0.05
VCC -
0.880
-
0.05
VCC -
1.025
-
0.05
VCC -
1.025
VCC -
0.966
V
CC
0.05
VCC -
0.880
-
UNITS
V
V
Single-Ended
Output Low
Voltage
Differential Output
Voltage
POWER SUPPLY
Supply Current I
V
OL
- V
V
OH
OL
All pins open except
CC
V
CC
, G N D
VCC -
VCC -
VCC -
VCC -
VCC -
VCC -
VCC -
VCC -
1.830
1.753
1.620
1.810
1.710
1.620
1.810
1.692
595 725 595 725 595 725 mV
10 18 12 18 14 18 mA
VCC -
1.620
V
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