SY88932L Datasheet, PDF (1/5 Pages) Micrel Semiconductor – 3.3V 3.2Gbps SONET/SDH LASER DRIVER WITH OUTPUT DISABLE

Micrel, Inc.
3.3V 3.2Gbps
SONET/SDH LASER DRIVER
WITH OUTPUT DISABLE
SY88932L
SY88932L
FEATURES
s Up to 3.2Gbps operation
s Modulation current to 60mA
s Rise/fall times 65ps typical
s Input 50Ω internally terminated to V_CC
s TTL /EN with internal 75kΩ pull-down
s Designed for use with MIC3000 optical transceiver
management IC
s Voltage programmable laser modulation current
s Single 3.3V power supply
s Operating temperature range of –40°C to 85°C
s Available in tiny 16-pin MLF™ package
DESCRIPTION
The SY88932L is the smallest available laser driver with
a programmable modulation current up to 60mA for Fabry-
Perot (FP) or distributed feedback (DFB) lasers. The device
is suitable for SONET/SDH applications with data rates up
to 3.2Gbps. The SY88932L accepts either CML level or
AC-coupled PECL inputs, and incorporates an active low
TTL /EN function which shuts off the modulation current
when HIGH.
All support documentation can be found on Micrel’s web
site at www.micrel.com.
APPLICATIONS
s Fiber optical module
s Transponder
s XAUI CWDM
s SONET/SDH transmission system
s Add-drop MUX
s Metro area network
s 2.5Gbps optical transmitter
BLOCK DIAGRAM
V_CC
R_EXT
/OUT
D_IN
/D_IN
Internal
Logic
/EN
V_REF
Generator
Modulation
Control
I_MOD
V_REF
V_CNTRL
GND
V_CC
V_CC
OUT
V_CC
I_BIAS
GND
MLF and MicroLeadFrame are trademarks of Amkor Technology, Inc.
M9999-082205
[e-mail] or [phone]
1
Rev.: E Amendment: /0
Issue Date: August 2005