SY88992LMGTR MICREL [Micrel Semiconductor], SY88992LMGTR Datasheet

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SY88992LMGTR

Manufacturer Part Number
SY88992LMGTR
Description
3.3V, 4.25Gbps VCSEL Driver
Manufacturer
MICREL [Micrel Semiconductor]
Datasheet
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 to
4.25Gbps. The 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
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 MLF™ 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

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SY88992LMGTR 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 to 4.25Gbps. The modulation ...

Page 2

... Functional Block Diagram (1) Ordering Information Part Number Package Type SY88992LMG MLF-16 (2) SY88992LMGTR MLF-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 Industrial 992L with Pb-Free bar-line indicator = +25° ...

Page 3

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 ...

Page 4

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 Temperature (T ) .................–65°C to ...

Page 5

AC Electrical Characteristics T = -40°C to +80°C and V = 3.0 to 3.6V, unless otherwise noted. Typical values are ( 13mA , and AC-coupled 50Ω load to ground with 75Ω pull-up (see Figure ...

Page 6

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 M9999-011306-A or (408) 955-1690 ...

Page 7

Typical Waveforms January 2006 7 hbwhelp@micrel.com 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

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 M9999-011306-A or (408) ...

Page 10

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 from 0% ...

Page 11

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. However, no ...

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