MAX3930E/D Maxim Integrated, MAX3930E/D Datasheet

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MAX3930E/D

Manufacturer Part Number
MAX3930E/D
Description
Laser Drivers
Manufacturer
Maxim Integrated
Datasheet
The MAX3930/MAX3931/MAX3932 are designed for
direct modulation of laser diodes at data rates up to
10.7Gbps. They provide adjustable laser bias and
modulation currents and are implemented using
Maxim’s second-generation in-house SiGe process.
The MAX3930 accepts differential CML clock and data
input signals and includes 50Ω on-chip termination
resistors. It delivers a 1mA to 100mA laser bias current
and a 20mA to 100mA modulation current with a typical
(20% to 80%) 25ps rise time. An input data retiming
latch can be used to reject input pattern-dependent jitter
if a clock signal is available.
The MAX3931/MAX3932 have an alternate pad out with
respect to the MAX3930. The MAX3931 includes the
series damping resistor R
The MAX3930/MAX3931/MAX3932 also include an
adjustable pulse-width control circuit to minimize laser
pulse-width distortion.
19-1856; Rev 3; 3/02
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.
________________________Applications
C0.
SONET OC-192 and SDH STM-64
Transmission Systems
Up to 10.7Gbps Optical Transmitters
Section Regenerators
________________________________________________________________ Maxim Integrated Products
General Description
D
on chip.
MAX3910
SERIALIZER
10Gbps
REPRESENTS A CONTROLLED–
IMPEDANCE TRANSMISSION LINE
DATA+
DATA-
CLK+
CLK-
50Ω
50Ω
5V
50Ω
50Ω
10.7Gbps Laser Diode Drivers
DATA+
DATA-
CLK-
RTEN
V
CLK+
TT
V
BIAS
2kΩ
MAX3930
V
MOD
5V
o Single +5V or -5.2V Power Supply
o 108mA Supply Current
o Operates to 10.7Gbps
o 50Ω On-Chip Input Termination Resistors
o Programmable Modulation Current to 100mA
o Programmable Laser Bias Current to 100mA
o 25ps Rise Time (MAX3930/MAX3932)
o Adjustable Pulse-Width Control
o Selectable Data Retiming Latch
o ESD Protection
o Internal Series Damping Resistor (MAX3931)
Note: Dice are designed to operate over a -40°C to +120°C
junction temperature (T
at T
MAX3932E/W
MAX3930E/D
MAX3931E/D
MAX3932E/D
A
= +25°C.
MODN2
PART
MODN1
MOD1
MOD2
V
V
BIAS
5V
EE
5V
CC
Typical Application Circuit
5V
5V
20Ω
0.01µF
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
J
L
) range but are tested and guaranteed
B
R
Ordering Information
D
= 15Ω
5V
Dice
PIN-PACKAGE
Dice
Dice
Wafer
Features
1

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MAX3930E/D Summary of contents

Page 1

... Programmable Laser Bias Current to 100mA o 25ps Rise Time (MAX3930/MAX3932) o Adjustable Pulse-Width Control o Selectable Data Retiming Latch o ESD Protection o Internal Series Damping Resistor (MAX3931) PART MAX3930E/D MAX3931E/D MAX3932E/D MAX3932E/W Note: Dice are designed to operate over a -40°C to +120°C junction temperature ( +25° ...

Page 2

Laser Diode Drivers ABSOLUTE MAXIMUM RATINGS Supply Voltage ( ..................................-0.5V to +6. DATA+, DATA-, CLK+, CLK- ................................................( 1.2V MODEN, RTEN BIASMON, MODMON, TT PWC+, and PWC- ...

Page 3

DC ELECTRICAL CHARACTERISTICS—MAX3930 (continued) = -40°C to +85°C. Typical values are 4.75V to 5.5V unless otherwise noted.) PARAMETER SYMBOL Single-Ended Input Differential Input Swing DC ELECTRICAL CHARACTERISTICS—MAX3931/MAX3932 ( ...

Page 4

Laser Diode Drivers AC ELECTRICAL CHARACTERISTICS—MAX3930/MAX3932 ( 4.75V to 5.5V unless otherwise noted.) (Note 3) PARAMETER SYMBOL Input Data Rates ati ...

Page 5

T = +25°C, unless otherwise noted ELECTRICAL EYE DIAGRAM 100mA CID) MOD 14ps/div PULSE-WIDTH DISTORTION vs. TEMPERATURE 2.0 1 20mA 1.6 MOD 1.4 1.2 1.0 ...

Page 6

Laser Diode Drivers ( +25°C, unless otherwise noted vs. V BIAS 100 0.1 0.2 V (V) BIAS 6 _______________________________________________________________________________________ Typical Operating ...

Page 7

PAD NAME MAX3931/ MAX3930 MAX3932 12, 9, 10, 12, 22, 23, 28 22, 23, 28 DATA+ 3 — DATA CLK+ 7 ...

Page 8

Laser Diode Drivers DATA+ 50Ω 50Ω DATA- PATTERN GENERATOR CLK+ 50Ω 50Ω CLK- -5V Figure 1. Test Circuit CLK+ CLK- DATA- DATA+ (DATA+) - (DATA-) I OUT Figure 2. Required Input Signal, Setup/Hold Time Definition, and Output Polarity 8 ...

Page 9

Detailed Description The MAX3930 laser driver consists of two main parts, a high-speed modulation driver and a laser-biasing block. The circuit operates from a single 5V or -5.2V supply. When operating from a 5V supply, connect all V pins to ...

Page 10

Laser Diode Drivers Table 1. Optical Power Relations PARAMETER SYM Average Power P P AVG AVG Extinction Ratio Optical Power of a “1” Optical ...

Page 11

50Ω 50Ω CLK+ CLK- D DATA+ DATA- 50Ω 50Ω INTERNALLY CONNECTED TO V FOR MAX3932 TT CC Figure 4. MAX3930/MAX3932 Functional Diagram ______________________________________________________________________________________ 10.7Gbps Laser Diode Drivers 10.7Gbps Laser ...

Page 12

Laser Diode Drivers V CC 50Ω 50Ω CLK+ CLK DATA+ DATA- 50Ω 50Ω PWC V EE Figure 5. MAX3931 Functional Diagram 12 ______________________________________________________________________________________ V CC RTEN MODEN MODN1 MODN2 40Ω 40Ω 0 ...

Page 13

50Ω 50Ω DATA+ DATA- Figure 6. MAX3930 Equivalent Input Circuit V CC 50Ω 50Ω DATA+ DATA- Figure 8. MAX3931/MAX3932 Equivalent Input Circuit ______________________________________________________________________________________ 10.7Gbps Laser Diode Drivers V EE Figure 7. MAX3930/MAX3932 Equivalent Output Circuit V ...

Page 14

... 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2002 Maxim Integrated Products N ...

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