2.5Gb/s Optical Transmitter for DWDM
OAS25320 Series
Document
OAS25320 Series
Part Number
OAS25320x-NV-WDM-yy-zz
Modification History
Originator
Revision
DATE:
Author
1
Number
Number
QPS-0202-051
QPS-0202-051
0.1
Aug. 27, 2002
T.Arai
K. YUSA
Document
Project Manager
Rev.
Date
Comments, Modifications
Features
-Center Wavelength range: 1528.77 to 1563.86nm ITU-T G.692 100GHz channel
spacing
-High output Power +7dBm(Typ)
-Operation speed 150M to 2.7Gbps
-Selection of Clocked or non-clocked operation
-Selection of wavelength 1ch sifting
-Supply voltage: +3.3V and +5V
Application
-SONET and ITU-T compliant at OC-48 and STM-16 and FEC for DWDM
August 2002
Oki Electric Industry
2.5Gb/s Optical Transmitter for DWDM
OAS25320 Series
Document
1. Specifications
Table 1.1 Specifications
Parameter
Mean launched power range
Maximum Operating Bit Rate
Center wavelength range
Wavelength channel spacing
Center wavelength accuracy
Variation center wavelength over temperature
Maximum spectral width [20dB down]
Minimum side mode suppression ratio
Center wavelength aging BOL to EOL
Minimum extinction ratio
Optical output waveform
Maximum Fiber Dispersion
Dispersion penalty
Power consumption
Operating case temperature range
Operating humidity
Dimension
Unit
dBm
Gbps
nm
nm
nm
nm
dB
nm
dB
ps/nm
dB
W
°C
%
mm
2
Number
QPS-0202-051
(Vcc
=+5.0V±5%,Tc=0 to 70°C)
Values
+6 to +8
2.488
1528.77 to 1563.86
ITU-T G.692 100GHz channel spacing
≥ ±
0.015
≥ ±
0.05
0. 3(Typ) , 0. 5(Max)
≥
30
≥ ±
0.1
≥
8.2
Meets for ITU-T G.957
≤2000
≤
2
≥
5
Tc=0 to+70
0 to 85
73.4 x 51 x 12.7
Table 1.2 Absolute Maximum Ratings
Parameter
Supply voltage Vcc +5V pin
Supply voltage VTEC+3.3V pin
Maximum signal input voltage (Clock/Data)
Maximum signal output current (TDA pin)
Operating case temperature range
Storage temperature range
Lead soldering temperature/time
Tensile strength of fiber pigtail cable
Minimum bending radius of fiber pigtail cable
Symbol
Vcc
VTEC
V
I
I
O
T
OP
T
STG
-
-
-
Condition
Tc=+25°C
Min
-0.5
-0.5
0
-25
-20
-40
-
-
30
Max
+7
+4.6
Vcc
+25
+85
+85
260/10
500
Unit
V
V
V
mA
°C
°C
C/s
g
mm
-
Tc=+25°C
August 2002
Oki Electric Industry
2.5Gb/s Optical Transmitter for DWDM
OAS25320 Series
Document
Table 1.3 Electrical Specifications
Parameter
Power supply voltage
Power supply current
TEC power supply Voltage
TEC power supply current
Data/Clock Input Amplitude
[AC-
Coupled at Internal]
Input impedance
Single end
Differential
Symbol
Vcc
I
CC
V
TEC
I
TEC
Vin-single
Vin-diff.
R
INRoad
Min
+4.75
-
+3.0
-
250
125
-
0
2.0
3
Number
QPS-0202-051
(Vcc =+5.0V±5%,Tc=+25°C)
Typ
+5.00
350
+3.3
0.4
-
Max
+5.25
400
+3.5
1.0
1300
650
50
-
-
-
+0.8
Vcc
ohm
V
V
Unit
V
mA
V
A
mVp-p
Clock mode Select
Voltage
input
Clocked
Non
Clocked
V
CLK ON
V
NON CLK
Wavelength Selection input
Voltage
Shut Down
input Voltage
n
n-1
Enable
Disable
V
λn
V
λn-1
V
EN
V
DIS
V
OL
V
OH
λ
alarm
0
2.0
0
2.0
0
+4.5
-1
-
-
-
-
-
+0.8
Vcc
+0.8
Vcc
+0.3
Vcc
+1
V
V
V
V
V
V
C
TEC Temperature deviation error
Monitor (Active High)
Normal
Deviation
Setting
Level
Laser Degrade Alarm (Active Low)
3
V
OL
V
OH
0
+4.5
-
-
-
50
40
-
-
20
500
-
-
50
+0.3
Vcc
-
-
0.12
-
60
V
V
mV/mA
mV/mW
ns
psec
%
LD Bias monitor
3
Back facet Monitor
DATA/CLOCK
input Rise/Fall time
1
V
LBM
V
BF
t
R
/t
F
ts/th
-
DATA/CLOCK timing
2
Input Clock Pulse width distortion
1.
Between 20% and 80%
2. The data and clock timing diagram is Figure 1.1
3. See Table 4.1
August 2002
Oki Electric Industry
2.5Gb/s Optical Transmitter for DWDM
OAS25320 Series
Document
Di(+)
4
Number
QPS-0202-051
ts
th
Cki(+)
50ps 50ps
Admitted range of
Cki(+) rise-edge
50ps 50ps
Figure 1.1 Data/Clock Timing Diagram
2. Block Diagram
Wavelength Selection Command
ATC
Temperature Deviation Alarm
True data input
False data input
True clk input
False clk input
Clock select
Shut down
APC
Back facet monitor
Laser Bias Monitor
Or
Laser Degraed Alarm
D-F/F
LD Driver
LD Module
OPT OUT
Figure 2.1 Block Diagram
August 2002
Oki Electric Industry
2.5Gb/s Optical Transmitter for DWDM
OAS25320 Series
Document
3. Package Outline (Unit : mm)
5
Number
QPS-0202-051
Figure 2.2 Package Outline
August 2002
Oki Electric Industry
PCB Design
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