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Sony Semiconductor Electronic Components Datasheet

CXB1548Q-Y Datasheet

Laser Driver

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CXB1548Q-Y pdf
Laser Driver
CXB1548Q-Y
Description
The CXB1548Q-Y is a high-speed monolithic
Laser Driver/Current Switch with ECL input level.
Open collector outputs are provided at the output
pins (Q, Q) and have the capability of driving
modulation current of 60mApp at a max. data rate of
2.0Gbps (NRZ). DRIVADJ and SDRIV inputs control
the modulation current amplitude, and BIASADJ,
SBIAS inputs control the bias current. Modulation
and bias current can be controlled by either voltage
or current through these pins. This device includes
three Operational Amplifiers and Laser Shutdown
function.
32 pin QFP (Ceramic)
Features
Maximum data rate (NRZ): 2.0Gbps (Typ.)
Differential Data input: ECL
On chip three Operational Amplifiers
Laser Shutdown Input: TTL
Applications
SONET/SDH: 155,622Mb/s,1.2Gb/s
Fiber channel: 133,266,532Mb/s,1.062Gb/s
FDDI: 125Mb/s ESCON: 200Mb/s HDTV: 1.5Gb/s
Absolute Maximum Ratings
Supply voltage
Input voltage
Differential input voltage
Output current (Continuous)
Input current (Continuous)
Storage temperature
Vcc – VEE
VIN
|VIN – VIN|
IQ, IBIAS
IDRVADJ
IBIASADJ
Tstg
–0.3 to +7.0
VEE to +0.5
0 to 2.5
0 to 80
0 to 8
0 to 8
–65 to +150
V
V
V
mA
mA
mA
°C
Recommended Operating Conditions
DC power supply voltage
Vcc – VEE
Operating case temperature Tc
4.75 to 5.46
0 to +85
V
°C
Structure
Bipolar silicon monolithic IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E94721-PK


Sony Semiconductor Electronic Components Datasheet

CXB1548Q-Y Datasheet

Laser Driver

No Preview Available !

CXB1548Q-Y pdf
Block Diagram and Pin Assignment
CXB1548Q-Y
24 23 22 21 20 19 18 17
VEE1 25
VBB 26
VOLTAGE
SOURCE
(VBB)
D 27
VOLTAGE
SOURCE
(VREF)
D 28
VCC1 29
INPUT SIGNAL
MONITOR
P 30
P 31
DRIVADJ 32
MODULATION
GENERATOR
BIAS
GENERATOR
16 OUT2
15 IN1
14 IN1
13 IGND
12 OUT1
11 BIASADJ
10 VEE2
9 SBIAS
1 2 3 4 56 7 8
Truth table
LDOFF D
Q
HLH
HH L
L LH
L HH
In a case of resistor load
P
H
L
H
L
–2–


Part Number CXB1548Q-Y
Description Laser Driver
Maker Sony Corporation
Total Page 12 Pages
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CXB1548Q-Y pdf
CXB1548Q-Y Datasheet PDF
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