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PDF SY88902 Data sheet ( Hoja de datos )
| Número de pieza | SY88902 | |
| Descripción | LASER DIODE DRIVER WTIH OUTPUT ENABLE | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SY88902 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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LASER DIODE
DRIVER WTIH
OUTPUT ENABLE
SY88902
FEATURES
s Up to 1.25Gbps operation
s 25mA peak drive current
s Separate modulation control
s Separate output enable for laser safety
s Differential inputs for data
s 75KΩ input pulldown resistor
s Single power supply
s Designed for use with SY88903 and SY88904
s Available in a tiny 10-pin (3mm) MSOP
PIN CONFIGURATIONS
/EN 1
DIN 2
/DIN 3
VREF 4
RSET 5
MSOP
K10-1
10 VCC
9 OUT
8 /OUT
7 GND
6 GND
DESCRIPTION
The SY88902 is a high speed current switch for driving
a semiconductor laser diode in optical transmission
applications. The output current, or modulation current
IMOD, is DC current controlled by IRSET, current through
the resistor RSET. The output OUT is HIGH when output
enable is HIGH.
The device incorporates complementary open collector
outputs with a capability of driving peak current of 25mA.
The resistor REXT must be placed between /OUT and
VCC to dissipate the worst case power. RSER is
recommended to compensate for laser diode matching
issues.
The SY88902 utilizes the high performance bipolar
ASSET™ technology.
APPLICATIONS
s 1.25Gbps Gigabit Ethernet
s 531Mbps and 1062Mbps Fibre Channel
s 622Mbps SONET
s Gigabit Interface Converter
BLOCK DIAGRAM
DIN
DIN
EN
VCC
REXT
OUT
Internal Logic
IMOD
BIAS
Control
40X
VREF
Modulation Control
VEE
RSET
RSET
1
OUT
RSER
to Laser Diode
VCC
GND
Rev.: C Amendment: /1
Issue Date: July 2000
1 page  
Micrel
APPLICATION EXAMPLE FOR 3-CHIP SET SOLUTION
Gigabit EthernetTerminal
SY88902
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet SY88902.PDF ] | |
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