July 10, 2005
OC-192/STM-64 SFF Transponder
(1550nm, 40km, 65km and 80km transmission)
Members of Softac Family
Standard
Compliant with 300-PIN MSA
Compliant with ITU-T G.691
Compliant with ITU-T G.959.1
Compliant with Telcordia GR-253
Features
1550nm externally EA modulated laser
Wide dynamic range PIN or APD receiver
Support transmission distance of 40km, 65km
and 80km
Support multi-rate operation from 9.953Gb/s to
11.318 Gb/s
1:16 MUX/DEMUX integrated
16-bit parallel 622.08Mbps LVDS data interface
Selectable dual fixed-rate jitter clean-up which
can be bypassed for multi-rate operation
Compliant with the 300 pin MSA in a compact
size
Compliant I2C MSA (Edition 4.0) interface for
monitoring/control
Supply voltage: +1.8V, +3.3V, +5.0V, -5.2V
Operating case temperature: -5℃ to +70℃
Compliant with IEEE 802.3ae
Compliant with OIF SFI-4 interface
Compliant with Telcordia GR-468-Core
Compliant with FDA 21CFR 1040.10 Class
Ⅰ
Description
The transponders are intended for 1550nm system
applications with reaches of up to 40km, 65km and
80km, which is designed to provide high optical
performance for SONET OC-192 / SDH STM-64.
The transmitter converts the electrical data into
10Gbit/s
circuit.
At the receiving side, the incoming data stream is
received at 10Gb/s PIN or APD receiver, which
converts it into a 10Gb/s electrical data stream.
The MUX section multiplexes 16 parallel 622Mb/s
electrical channels into a 10Gb/s series data stream
and sent it to the transmitter. And the DEMUX
section demultiplexes the 10Gb/s electrical data
stream into 16 parallel 622Mb/s electrical channels.
The parallel data is sent out to and get from the
300-pin MSA (Multi Source Agreement) compliant
connector.
The transmitter and receiver reference clock rates
are selectable for divide by 16 or 64.
optical
signal,
which
uses
1550nm
externally EA modulated laser with specified driving
Applications
Metro network SDH / SONET system
10 Gigabit Ethernet system
Forward Error Correction (FEC) system
Optical Transport Network (OTN) System
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Page 1 of 14
OC-192/STM-64 1550nm Transponder
40km, 65km and 80km transmission
Preliminary Data Sheet
July 10, 2005
Block Diagram
LsENABLE
APC
TxDIN[0:15]P/N
TxPICLKP/N
TxREFCLKP/N
TxREFSEL
TxRESET
TxFIFORES
TxRATESEL0/1
TxPCLKP/N
TxMCLKP/N
TxLOCKERR
TxFIFOERR
RxDOUT[0:15]P/N
RxPOCLKP/N
RxMCLKP/N
RxREFCLKP/N
RxREFSEL
RxLCKREF
RxRATESEL0/1
RxLOCKERR
RxALIMINT
TxALIMINT
ALMINT
16
16
LsPOWMON
LsBIASMON
LsPOWALM
LsBIASALM
MUX
with CMU
Driver
TX E-O
OC-192
Optical Output
ATC
LsTEMPMON
LsTEMPALM
Serial
Monitor
DEMUX
with CDR
I2CDATA
I2CCLOCK
OC-192
Optical Iutput
RxPOWMON
RxPOWALM
RX O-E
Optical
Monitor
+5.0V
+3.3V +1.8V
-5.2V
GND
Figure 1, Block Diagram of Transponder
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Page 2 of 14
OC-192/STM-64 1550nm Transponder
40km, 65km and 80km transmission
Preliminary Data Sheet
July 10, 2005
Absolute Maximum Ratings
Stresses in excess of the Absolute Maximum Ratings can cause permanent damage to the device.
Table 1- Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Case Temperature
Symbol
T
S
T
cm
V
cc
Supply Voltage
V
dd1
V
dd2
V
ee
Operating Relative Humidity (non-condensing)
Electro-Static Discharge
Input Optical Power
PIN
APD
RH
ESD
Pin
Min.
-40
-10
-0.5
-0.5
-0.5
-7.0
Max.
+85
+75
+6.0
+4.2
+3.3
+0.5
85
2000
+3
+1
Unit
°C
°C
V
V
V
V
%
V
dBm
Recommended Operating Conditions
Specified performance is maintained over all conditions in the table below, and damage to the device may
occur over an extended period of time.
Table 2 - Recommended Operating Conditions
Parameter
Operating Case Temperature
Symbol
T
C
V
cc
Supply Voltage
V
dd1
V
dd2
V
ee
I
cc
Supply Current
I
dd1
I
dd2
I
ee
Power consumption
Power supply noise rejection
Note:
1.
An additional 0.2 W of power dissipation is required or single or dual rate jitter filter.
Pd
Min.
-5
+4.75
+3.15
+1.71
-5.45
+5.0
+3.3
+1.8
-5.2
90
300
700
450
5.0
Typ.
Max.
+70
+5.25
+3.45
+1.89
-4.95
150
600
750
500
6.5
50
Unit
°C
V
V
V
V
mA
mA
mA
mA
W
mVp-p
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Page 3 of 14
OC-192/STM-64 1550nm Transponder
40km, 65km and 80km transmission
Preliminary Data Sheet
July 10, 2005
Optical Interface Characteristics
Table 3 - Optical Characteristics
Parameter
Centre Wavelength
Output Power
Output Power Stability
Output Power at laser disable
Spectral Width (-20dB)
Side Mode Suppression Ratio
Extinction Ratio
Chromatic
Dispersion
Output Optical Eye
Jitter Generation
40km
65/80km
40km
65km
80km
G.691
B1
B2
Receiver
Centre Wavelength
Receiver Sensitivity
Receiver Overload
Optical Path Penalty
Reflection of Receiver
Jitter Tolerance
Jitter Transfer
Notes:
1. The optical power is launched into SMF.
2. Measured with a NRZ PRBS 2
31
-1 test pattern @ 9.95328Gbps.
3. Measured with a NRZ PRBS 2
31
-1 test pattern @ 9.95328Gbps, BER
≤1×10
-12
.
PIN
APD
PIN
APD
λ
C
P
IN
P
IN
-1
-9
1290
-19
-26
0
-6
2
-27
1600
-17
-24
nm
dBm
dBm
dB
dB
3
3
0.3
0.1
UI
UI
2
2
D
Normal-Power
High-Power
Symbol
λ
C
P
OUT
∆P
OUT
P
OUT
∆
20
SMSR
ER
35
8.2
10
9
11
800
1300
1600
Compliant with Telcordia GR-253-CORE and ITU-T
ps/nm
Min.
1530
-1
0
-0.5
0
+2
Typical
Max.
1565
+2
+4
+0.5
-45
0.3
Unit
nm
dBm
dBm
dBm
nm
dB
dB
1
Notes
Transmitter
Compliant with Telcordia GR-253 and ITU-T G.825
Compliant with Telcordia GR-253 and ITU-T G.825
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Page 4 of 14
OC-192/STM-64 1550nm Transponder
40km, 65km and 80km transmission
Preliminary Data Sheet
July 10, 2005
Electrical Interface Characteristics
Table 4 - LVDS Input/Output Specification
Parameter
LVDS interface
Input Differential Voltage
Input Differential impedance
Output Differential Voltage
Output Common Mode Voltage
Output Differential impedance
Rise Time/Fall time
Clock Signal Duty Cycle
V
ID
R
ID
V
OD
V
CMO
R
OD
T
rise/fall
45
50
80
100
120
250
55
Ω
ps
%
200
80
500
100
120
1000
mV
Ω
mV
Symbol
Min.
Typical
Max.
Unit
Notes
VP
Differantial
Voltage
(V
OD
or V
ID
)
VN
Definition of Differantial Voltage Levels
Table 5 - Input Reference Clocks
Parameter
Input Differential Voltage
Differential Input Impedance
Clock signal Duty Cycle
Symbol
V
ID
R
ID
Tw/To
Min.
400
80
45
100
Typical
Max.
1800
120
55
Unit
mV
Ω
%
Notes
Common Mode
Voltage
(V
CMI
or V
CMD
)
Table 6 - LVTTL Input/Output Pin Characteristics
Parameter
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Symbol
V
IH
V
IL
V
OH
V
OL
Min.
2.0
GND
2.4
GND
Typical
Max.
Vdd
0.8
Vdd
0.4
Unit
V
V
V
V
Notes
Transponder Clock Interfaces and Control
There are seven clock interfaces to the transponder. This section details the specific functions, capabilities,
and limitations of each. Note that all clock rates shown are at STM-64/OC-192 rate, but should be scaled
appropriately for other data rates.
The LVPECL TxREFCLK, provided via the 300-pin interface, may be at 1/16 or 1/64 of the transmitted serial
data rate. The TxREFCLK must be synchronous with the TxPICLK. There are several approaches to ensure
this synchronous relationship. The two most common are
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Page 5 of 14
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