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(SDM7101-XC,SDM7101-XC)
Specification:TS-S97D022C
Date : August , 2000
6. Electrical Interface
(Unlessotherwisespecified,Vcc
TX-VeeTX =VccRX-VeeRX= 4.75 to 5.25 V and all operating temperature shall
apply.)
6-1.Transmitterside
6-2. Receiver side
7. Optical Interface
( Unless otherwise specified, Vcc-Vee = 4.75 to 5.25 V and all operating temperature shall apply. )
7-1.Transmitterside
Warning
Donotlookatthelaserbeamprojectionarea(e.g.endofopticalconnector)withnakedeyesorthroughopticalequipmentwhilethe
powerissuppliedtothisproduct.Otherwise,youreyesmaybeinjured.
Parameter
Symbol
min.
Typ.Max.Unit
Note
Average Output Power to SMF
Pos
-15.0
-11.0
-8.0
dBm
1
Extinction Ratio
Er
8.2
dB
1
Center Wavelength
λc
1261
1360
nm
Spectral Width (RMS)
∆λ
7.7
nm
Eye Mask for Optical Output
Refer to Figure 5
Note 1. Measured at 155.52Mbps PRBS2^23-1, 50% duty cycle data, NRZ
Parameter
Symbol
min.
Typ.
Max.
Unit
Note
Supply VoltageVccTX-VeeTX
4.75
5.00
5.25
V
Supply Current
Idtx
70
150
mA
1
Input VoltageHighVih
VccTX-1.17
VccTX-0.73
V
2
TD, TDb
Low
Vil
VccTX-1.95
VccTX-1.45
Input Current
High
Iih
-10
150
µA2
TD, TDb
Low
Iil
-10
10
Signal Input Rise / Fall Time
1.6
nsec.
3
Note 1. Input bias current is not included. 50% duty cycle data. 155.52Mbps
2. VccTX-VeeRX=5.0V, Tc=25°C
3. 20 ~ 80%
"H"
"L"
Pd
Pa
Figure 4. FLAG Assert Level and Deassert Level
Optical Input Power
Relation between Input Signal
and Optical Output Signal
Input Signal
Optical Output Siganl
TD
TDb
High
Low
ON (High)
Low
High
OFF (Low)
High
High
Undefined
Low
Low
Undefined
0.15
0.35
0.65
0.85
0.00
1.20
1.00
0.80
0.50
0.20
0.00
-0.20
1.00
Figure 5. Optical Pulse Mask with Fourth Order
Bessel-Thomson Filter Specified in ITU-T G.957
Parameter
Symbol
min.
Typ.
Max.
Unit
Note
Supply VoltageVccRX-VeeRX
4.75
5.00
5.25
V
Supply Current
Idrx
60
110
mA
1
Data & SD
HighVoh
VccRX-1.03
VccRX-0.88
V
2
Output Voltage
Low
Vol
VccRX-1.81
VccRX-1.62
Data Rise / Fall Time of Output Signal
Trd / Tfd
1.6
nsec
3
SD Assert Time
Sa
100
µsec
4
SD Deassert Time
Sd
350
µsec
4
Note 1. Output current is not included. 50% duty cycle data, 155Mbps, NRZ
Note 2. Vccrx=+5.0V, Tc=25°C, Output load resistance
Rl=50
Ω to Vccrx-2V for RD, RDb and SD.
Note 3. 20 ~ 80%
Note 4. Please refer to Figure 4
Note 5. 50% duty cycle data, 155Mbps, PRBS223-1, NRZ, Pin = -34 ~ -8dBm
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