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MAX9378EUA+T

P1-P3P4-P6P7-P9
General Description
The MAX9377/MAX9378 are fully differential, high-
speed, low-jitter anything-to-LVPECL and anything-to-
LVDS translators, respectively, with a selectable
divide-by-four function. Low propagation delay and
high speed make them ideal for various high-speed
network routing and backplane applications at speeds
up to 2GHz in nondivide mode.
The MAX9377/MAX9378 accept any differential input
signal within the supply rails and with minimum ampli-
tude of 100mV. Inputs are fully compatible with the
LVDS, LVPECL, HSTL, and CML differential signaling
standards. The MAX9377 outputs are LVPECL and
have sufficient current to drive 50Ω transmission lines.
The MAX9378 outputs are LVDS and conform to the
ANSI EIA/TIA-644 LVDS standard.
The MAX9377/MAX9378 are available in 8-pin µMAX
packages and operate 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
♦ Accept LVDS/LVPECL/Anything Inputs
♦ Pin-Selectable Divide-by-Four Function
♦ 421ps (typ) Propagation Delays (MAX9377)
♦ 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
♦ ESD Protection: >2kV Human Body Model (HBM)
MAX9377/MAX9378
Anything-to-LVPECL/LVDS Translators
with Pin-Selectable Divide-by-Four
________________________________________________________________ Maxim Integrated Products 1
OUT
RSTGND
1
2
8
7
V
CC
OUTIN
IN
SEL
TOP VIEW
3
4
6
5
MAX9377
MAX9378
Pin Configuration
Ordering Information
19-2846; Rev 1; 7/03
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.
PART TEMP RANGE PIN-PACKAGE
MAX9377EUA -40°C to +85°C 8 µMAX
MAX9378EUA -40°C to +85°C 8 µMAX
SEL
÷ 4
RST
LVDS/ANY
LVPECL (MAX9377)
OR
LVDS (MAX9378)
Functional Diagram
MAX9377/MAX9378
Anything-to-LVPECL/LVDS Translators
with Pin-Selectable Divide-by-Four
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.
V
CC
to GND...........................................................-0.3V to +4.1V
Inputs (IN, IN, RST, SEL)............................-0.3V to (V
CC
+ 0.3V)
IN to IN................................................................................±3.0V
Short-Circuit Duration (MAX9378 OUT, OUT) ............Continuous
Continuous Output Current .................................................50mA
Surge Output Current .......................................................100mA
Continuous Power Dissipation (T
A
= +70°C)
8-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
(V
CC
= +3.0V to +3.6V, differential input voltage |V
ID
| = 0.1V to 3.0V, input voltage (V
IN
, V
IN
) = 0 to V
CC
, input common-mode voltage
V
CM
= 0.05V to (V
CC
- 0.05V), LVPECL outputs terminated with 50Ω ±1% to (V
CC
- 2.0V), LVDS outputs terminated with 100Ω ±1%,
T
A
= -40°C to +85°C. Typical values are at V
CC
= +3.3V, |V
ID
| = 0.2V, input common-mode voltage V
CM
= 1.2V, T
A
= +25°C, unless
otherwise noted.) (Notes 1, 2, 3)
-40°C +25°C +85°C
PARAMETER SYMBOL CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX
UNITS
LVCMOS/LVTTL INPUTS (RST, SEL)
Input High
Voltage
V
IH
2.0 V
CC
2.0 V
CC
2.0 V
CC
V
Input Low Voltage V
IL
GND 0.8 GND 0.8 GND 0.8 V
Input High Current I
IH
V
IN
= V
CC
or 2V 0 150 0 150 0 150 µA
Input Low Current I
IL
V
IL
= 0
or 0.8V -20 +20 -20 +20 -20 +20 µA
DIFFERENTIAL INPUTS (IN, IN)
Differential Input
Threshold
V
THD
-100 ±6 +100 -100 ±6 +100 -100 ±6 +100 mV
Input Current I
IN
, I
IN
V
IN
, V
IN
= V
CC
or 0V -20 +20 -20 +20 -20 +20 µA
Input Common-
Mode Voltage
V
CM
Figure 1 0.05
V
CC
-
0.05
0.05
V
CC
-
0.05
0.05
V
CC
-
0.05
V
LVPECL OUTPUTS (OUT, OUT) (MAX9377)
Single-Ended
Output High
Voltage
V
OH
Figure 3
V
CC
-
1.085
V
CC
-
1.033
V
CC
-
0.880
V
CC
-
1.025
V
CC
-
0.992
V
CC
-
0.880
V
CC
-
1.025
V
CC
-
0.978
V
CC
-
0.880
V
Single-Ended
Output Low
Voltage
V
OL
Figure 3
V
CC
-
1.830
V
CC
-
1.755
V
CC
-
1.620
V
CC
-
1.810
V
CC
-
1.717
V
CC
-
1.620
V
CC
-
1.810
V
CC
-
1.699
V
CC
-
1.620
V
Differential Output
Voltage
V
OH
-
V
OL
Figure 3 595 725 595 725 595 725 mV
LVDS OUTPUTS (OUT, OUT) (MAX9378)
Differential Output
Voltage
V
OD
Figure 2 250 370 450 250 363 450 250 348 450 mV
MAX9377/MAX9378
Anything-to-LVPECL/LVDS Translators
with Pin-Selectable Divide-by-Four
_______________________________________________________________________________________ 3
-40°C +25°C +85°C
PARAMETER SYMBOL CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX
UNITS
Change in
Magnitude of V
OD
Between
Complementary
Output States
∆V
OD
Figure 2 1.0 20 1.0 20 1.0 20 mV
Offset Common-
Mode Voltage
V
OS
Figure 2 1.125 1.375 1.125 1.250 1.375 1.125 1.375 V
Change in
Magnitude of V
OS
Between
Complementary
Output States
∆V
OS
Figure 2 0.1 20 0.1 20 0.1 20 mV
Output Short-
Circuit Current,
Either Output
Shorted to GND
I
OS
V
ID
= ±100mV, one
output GND, other
output open or
shorted to GND
19.0 24 19.0 24 19.0 24 mA
Output Short-
Circuit Current,
Outputs Shorted
Together
I
OSAB
V
ID
= ±100mV,
V
OUT
= V
OUT
4.0 12 4.0 12 4.0 12 mA
POWER SUPPLY
MAX9377, all pins
open except V
CC
,
GND
13 22 15 22 17 22
Supply Current I
CC
MAX9378, R
L
= 100,
quiescent, inputs are
open
18.0 30 20 30 22 30
mA
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.0V to +3.6V, differential input voltage |V
ID
| = 0.1V to 3.0V, input voltage (V
IN
, V
IN
) = 0 to V
CC
, input common-mode voltage
V
CM
= 0.05V to (V
CC
- 0.05V), LVPECL outputs terminated with 50Ω ±1% to (V
CC
- 2.0V), LVDS outputs terminated with 100Ω ±1%,
T
A
= -40°C to +85°C. Typical values are at V
CC
= +3.3V, |V
ID
| = 0.2V, input common-mode voltage V
CM
= 1.2V, T
A
= +25°C, unless
otherwise noted.) (Notes 1, 2, 3)
P1-P3P4-P6P7-P9

MAX9378EUA+T

Mfr. #:
Buy MAX9378EUA+T
Manufacturer:
Maxim Integrated
Description:
Translation - Voltage Levels X-LVPECL/LVDS Translator
Lifecycle:
New from this manufacturer.
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