OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX9378EUA+T

P1-P3P4-P6P7-P9
Applications Information
LVPECL Output Termination (MAX9377)
Terminate the MAX9377 LVPECL outputs with 50Ω to
(V
CC
- 2V) or use equivalent Thevenin terminations.
Terminate OUT and OUT with identical termination on
each for low output distortion. When a single-ended
signal is taken from the differential output, terminate
both OUT and OUT. Ensure that output currents do not
exceed the current limits as specified in the Absolute
Maximum Ratings. Under all operating conditions, the
device’s total thermal limits should be observed.
LVDS Output Termination (MAX9378)
The MAX9378 LVDS outputs are current-steering
devices; no output voltage is generated without a termi-
nation resistor. The termination resistors should match
the differential impedance of the transmission line.
Output voltage levels are dependent upon the value of
the termination resistor. The MAX9378 is optimized for
point-to-point communication with the 100Ω termination
resistor at the receiver inputs. Termination resistance
values may range between 90Ω and132Ω, depending
on the characteristic impedance of the transmission
medium.
Supply Bypassing
Bypass V
CC
to ground with high-frequency surface-
mount ceramic 0.1µF and 0.01µF capacitors. Place the
capacitors as close to the device as possible with the
0.01µF capacitor closest to the device pins.
Traces
Circuit board trace layout is very important to maintain
the signal integrity of high-speed differential signals.
Maintaining integrity is accomplished in part by reduc-
ing signal reflections and skew, and increasing com-
mon-mode noise immunity.
Signal reflections are caused by discontinuities in the
50Ω characteristic impedance of the traces. Avoid dis-
continuities by maintaining the distance between differ-
ential traces, not using sharp corners or using vias.
Maintaining distance between the traces also increases
common-mode noise immunity. Reducing signal skew
is accomplished by matching the electrical length of
the differential traces.
MAX9377/MAX9378
Anything-to-LVPECL/LVDS Translators
with Pin-Selectable Divide-by-Four
_______________________________________________________________________________________ 7
V
CM
(MAX) = V
CC
- 0.05V
V
CC
GND
V
ID
V
CM
(MIN) = 0.05V
V
ID
Figure 1. Differential Input Definition
80%
OUT - OUT
20%
20%
80%
0V
t
F
t
R
DRV
OUT
OUT
R
L
/ 2
R
L
/ 2
VOD
VOD(+)
VOD(-)
VOS
GND
C
L
C
L
Figure 2. LVDS Output Load and Transition Times
t
PHL
t
PLH
80%
20%
20%
80%
DIFFERENTIAL OUTPUT
WAVEFORM
V
ID
OR (V
IH
- V
IL
)
V
OD
OR (V
OH
- V
OL
)
+V
OD
OR +(V
OH
- V
OL
)
-V
OD
OR -(V
OH
- V
OL
)
0V DIFFERENTIAL
V
OH
V
OL
0V DIFFERENTIAL
IN
IN
OUT
OUT
OUT - OUT
t
F
t
R
Figure 3. Differential Input-to-Output Propagation Delay Timing
Diagram
MAX9377/MAX9378
Anything-to-LVPECL/LVDS Translators
with Pin-Selectable Divide-by-Four
8 _______________________________________________________________________________________
IN
t
DR
RST
t
SET
1 OUT
4 OUT
t
PLH
t
PCO
t
PCO
Figure 4. Frequency Divider and Reset Timing Diagram
IN
IN/4
SEL
OUT
t
SEL
Figure 5. Frequency Select Delay Timing Diagram
Chip Information
MAX9377 TRANSISTOR COUNT: 614
MAX9378 TRANSISTOR COUNT: 614
PROCESS: Bipolar
MAX9377/MAX9378
Anything-to-LVPECL/LVDS Translators
with Pin-Selectable Divide-by-Four
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9
© 2003 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages
.)
8LUMAXD.EPS
PACKAGE OUTLINE, 8L uMAX/uSOP
1
1
21-0036
J
REV.DOCUMENT CONTROL NO.APPROVAL
PROPRIETARY INFORMATION
TITLE:
MAX
0.043
0.006
0.014
0.120
0.120
0.198
0.026
0.007
0.037
0.0207 BSC
0.0256 BSC
A2
A1
c
e
b
A
L
FRONT VIEW
SIDE VIEW
E H
0.6±0.1
0.6±0.1
ÿ 0.50±0.1
1
TOP VIEW
D
8
A2
0.030
BOTTOM VIEW
1
6∞
S
b
L
H
E
D
e
c
0∞
0.010
0.116
0.116
0.188
0.016
0.005
8
4X S
INCHES
-
A1
A
MIN
0.002
0.950.75
0.5250 BSC
0.25 0.36
2.95 3.05
2.95 3.05
4.78
0.41
0.65 BSC
5.03
0.66
6∞0∞
0.13 0.18
MAX
MIN
MILLIMETERS
- 1.10
0.05 0.15
α
α
DIM
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.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet