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PDF SY88232AL Data sheet ( Hoja de datos )
| Número de pieza | SY88232AL | |
| Descripción | 2.5Gbps Laser Diode Driver | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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SY88232L/AL
2.5Gbps Laser Diode Driver with Integrated
Limiting Amplifier
General Description
The SY88232L is a single supply 3.3V integrated laser
driver and post amplifier for telecom/datacom applications
with data rates from 155Mbps up to 2.5Gbps. The driver
can deliver modulation current up to 85mA, and provides a
high compliance voltage that makes it suitable for high-
current operation with the laser DC-coupled to it. The post
amplifier can detect signals with amplitude as low as
5mVPP.
The SY88232AL is a version of the SY88232L without 50Ω
termination resistors at the inputs of the driver and the post
amplifier. The SY88232AL is to be used specially in SFF
modules mounted on mother boards which have
preinstalled terminations. Removing post amplifier input
terminations will allow for receiver gain control.
All support documentation can be found on Micrel’s web
site at: www.micrel.com.
Features
∑ 2.4V minimum laser compliance voltage
∑ Operation up to 2.5Gbps
∑ Integrated APC circuit
∑ Modulation current up to 85mA
∑ Bias current up to 70mA
∑ Bias, Modulation, and power monitoring
∑ High input sensitivity post amplifier, 5mVPP
∑ Programmable LOS level
∑ Available in 32-pin (5mm x 5mm) MLF® package
Applications
∑ Multi-rate burst mode applications: A-PON, B-PON,
G-PON, E-PON, GE-PON
___________________________________________________________________________________________________________
Typical Application
www.DataSheet4U.com
MLF and MicroLeadFrame are registered trademarks of Amkor Technology
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
June 2009
M9999-063009-A
[email protected] or (408) 955-1690
1 page  
Micrel, Inc.
Truth Tables
DIN+
L
H
X
DIN-
H
L
X
/TXEN MOD+(2)
LH
LL
XH
MOD-
L
H
L
Laser
Output
Power(3)
L
H
L
Table 1. Modulation Output Truth Table(1, 3)
/TXEN
L
L
H
BIAS
ON
OFF
OFF
Table 2. BIAS Output Truth Table(1)
Notes:
1. Assuming /TXDIS = H and a 6.3kΩ resistor installed between TXDIS
and GND or TXDIS = L and a 6.3kΩ resistor installed between
/TXDIS and GND
2. IMOD = 0 when MOD+ = H.
3. Assuming that the cathode of the laser is connected to MOD+.
SY88232L/AL
LOS/SD_SEL
H
H
L
L
Function
Selected
LOS
LOS
SD
SD
JAM
L
H
L
H
Output
Enabled
Disabled
Disabled
Enabled
Table 3. Post Amp Output Truth Table
www.DataSheet4U.com
June 2009
5 M9999-063009-A
[email protected] or (408) 955-1690
5 Page 
Micrel, Inc.
Functional Characteristics
Laser Driver
SY88232L/AL
www.DataSheet4U.com
June 2009
11 M9999-063009-A
[email protected] or (408) 955-1690
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet SY88232AL.PDF ] | |
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