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| SY100EL1003 Datasheet, PDF (1/6 Pages) Micrel Semiconductor – LASER DIODE DRIVER WITH OUTPUT ENABLE | |||
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LASER DIODE DRIVER
WITH OUTPUT ENABLE
PRELIMINARY
SY100EL1003
FEATURES
s Up to 1.25Gbps operation
s 75mA peak drive current
s Separate modulation control
s Separate output enable for laser safety
s Differential inputs for data
s 75K⦠input pulldown resistor
s Single power supply
s Available in 16-pin SOIC package
PIN CONFIGURATION
NC 1
EN 2
N/C 3
RSET 4
VCCO 5
D6
D7
NC 8
Top View
SOIC
Z16-2
16 VCC
15 NC
14 MC
13 OUT
12 OUT
11 VBB
10 NC
9 VEE
BLOCK DIAGRAM
VBB
D
Internal Logic
D
EN
BIAS
Control
DESCRIPTION
The SY100EL1003 is a high speed current source for
driving a semiconductor laser diode in optical transmission
applications. The output current modulation is DC â
voltage controlled. The modulation current is disabled
when output enable is HIGH.
The device incorporates complementary open collector
outputs with a capability of driving peak current of 75mA.
The laser driver current is adjustable by selection of RSET.
The resistor REXT must be placed between OUT and
VCC to dissipate the worst case power. RSER is
recommended to fix laser diode matching issues.
The SY100EL1003 utilizes the high performance
bipolar ASSET technology.
VCC
REXT
OUT
OUT
RSER
to Laser Diode
Modulation Control
MC
RSET
RSET
VEE
1
Rev.: D
Amendment: /0
Issue Date: August, 1998
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