SY88992LMG Micrel Inc, SY88992LMG Datasheet

3.3V 4.25 Gbps VCSEL Driver With Peaking: 16 MLFr (I Temp, Green)

SY88992LMG

Manufacturer Part Number
SY88992LMG
Description
3.3V 4.25 Gbps VCSEL Driver With Peaking: 16 MLFr (I Temp, Green)
Manufacturer
Micrel Inc
Type
Laser Diode Driverr
Datasheet

Specifications of SY88992LMG

Data Rate
4.25Gbps
Number Of Channels
1
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
57mA
Current - Modulation
25mA
Operating Temperature
-40°C ~ 85°C
Package / Case
16-MLF®, QFN
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-2120-5
576-2120-5
576-2970-5
General Description
The SY88992L is a single supply 3.3V, low power
consumption, small-form factor VCSEL driver ideal for
use in datacom applications; Ethernet, GbE (Gigabit
Ethernet), and FC (Fibre Channel) applications that
operate
modulation current is set by applying an external
voltage at the IM_SET pin. The driver features an
adjustable peaking option with variable amplitude and
duration to improve VCSEL edge response. The driver
can deliver modulation current up to 25mA and a
peaking current up to 35% of the modulation current.
This device is intended to be used with Micrel’s
MIC3001 Optical Transceiver Management IC, which
allows for both modulation and bias current control and
monitoring, APC (Automatic Power Control), and
temperature compensation.
All support documentation can be found on Micrel’s
web site at: www.micrel.com.
________________________________________________________________
Typical Application
January 2006
from
100Mbps
up
to
4.25Gbps.
The
Features
• Up to 25mA modulation current
• Operates from 100Mbps to 4.25Gbps
• Peaking with variable duration option for better
• Dual peaking, on the rise and falling edges
• Peaking current proportional to modulation current
• Easy modulation current setting
• Fully controllable with Micrel MIC3001
• Small (3mm x 3mm) 16 pin QFN package
Applications
• Multirate LAN, SAN applications up to 4.25Gbps:
• SFF, SFP Modules
Markets
• Datacom
VCSEL response
Ethernet, GbE, FC
3.3V, 4.25Gbps VCSEL Driver
SY88992L
hbwhelp@micrel.com
or (408) 955-1690
M9999-011306-A

Related parts for SY88992LMG

SY88992LMG Summary of contents

Page 1

General Description The SY88992L is a single supply 3.3V, low power consumption, small-form factor VCSEL driver ideal for use in datacom applications; Ethernet, GbE (Gigabit Ethernet), and FC (Fibre Channel) applications that operate from 100Mbps up modulation current is set ...

Page 2

... Micrel, Inc. Functional Block Diagram (1) Ordering Information Part Number Package Type SY88992LMG QFN-16 (2) SY88992LMGTR QFN-16 Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. Pin Configuration January 2006 Operating Package Marking Range Industrial 992L with Pb-Free bar-line indicator ...

Page 3

Micrel, Inc. Pin Description Pin Number Pin Name 2 DIN+ 3 DIN- 6 IP_SET1 7 IP_SET2 8 IP_SET3 10 MOD- 11 MOD+ 13 IM_SET 14 IPD_SET 16 / GND 5, 15 VCC Truth Table DIN+ L ...

Page 4

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ........................... –0.5V to +4.0V IN CML Input Voltage (V ) .......... V IN TTL Control Input Voltage (V ) ................... Lead Temperature (soldering, 20sec.) ........... +260°C Storage ...

Page 5

Micrel, Inc. AC Electrical Characteristics T = -40°C to +80°C and V = 3.0 to 3.6V, unless otherwise noted. Typical values are and AC-coupled 50Ω load to ground with 75Ω pull-up (see Figure below). (5) ...

Page 6

Micrel, Inc. Typical Operating Characteristics T = +25°C and V = 3.3V, unless otherwise noted January 2006 I = 0mA MOD R (kΩ) IPD_SET 6 hbwhelp@micrel.com SY88992L M9999-011306-A or (408) 955-1690 ...

Page 7

Micrel, Inc. Typical Waveforms January 2006 7 hbwhelp@micrel.com SY88992L M9999-011306-A or (408) 955-1690 ...

Page 8

Micrel, Inc. Peaking Variation with can be seen on the set of electrical waveforms below, the amplitude of the peak increases with the peaking- to-modulation current ratio and the width of the peak increases with peaking duration. ...

Page 9

Micrel, Inc. Input and Output Stages Figure 1a. Simplified Input Stage Interfacing the Input to Different Logic Drivers Figure 2a. AC-Coupling to LVPECL Driver January 2006 Figure 1b. Simplified Output Stage Figure 2b. AC-Coupling to CML Driver 9 hbwhelp@micrel.com SY88992L ...

Page 10

Micrel, Inc. Driver’s Special Features The SY88992L features a peaking current of programmable amplitude and duration on both the rising and the falling edges. The amplitude of the peaking current is adjustable in steps the modulation current ...

Page 11

Micrel, Inc. Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. ...

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