Delta-electronics SFBD-1250A4Q1R Manual de usuario Pagina 3

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SFBD-1250A4Q1R
DELTA ELECTRONICS, INC.
3 Revision: S0
04/12/2007
www.deltaww.com
Note (4): Spectral Width (RMS)
Note (5). Transmitter eye mask definition
4. Specification of Receiver
Parameter Symbol Min. Typ. Max. Unit Note
Input Optical Wavelength
λ
IN
1480 1490 1500 nm PIN-PD
Receiver Sensitivity P
IN
-23
dBm Note (1)
Input Saturation Power (Overload) P
SAT
-3 dBm
Signal Detect -Assert Power P
A
-24 dBm
Signal Detect -Deassert Power P
D
-44 dBm Note (2)
Signal Detect Hysteresis P
A
-P
D
0.5 2 5 dB
Data Output Rise/Fall time t
r
/t
f
260 ps Note (3)
Optical Receiver Reflectance -12 dB Note (4)
1260 to 1360nm -43 dB
1550 to 1560nm -33 dB
Optical Isolation
from External
Source
1640 to 1665nm -33 dB
Note (1). Measured with Light source 1490nm, ER=9dB; BER =<10
-12
@PRBS=2
7
-1 NRZ
Note (2). When SD deasserted, the data output is Low-level (fixed)
Note (3). These are 20%~80% values.
Note (4). Measured at wavelength of 1490nm.
Center Wavelength
R
MS spectral width(max)
nm nm
1260 2.09
1270 2.52
1280 3.13
1290
1295
1297
1329
1331
1340
3.50
1350 3.06
1360 2.58
Transmitter Spectral Limits
0
1
2
3
4
1240 1260 1280 1300 1320 1340 1360 1380
Center Wavelength (nm)
RMS (nm)
1
0
X1 X2
1-X2
1-X1
1+ Y 3
1
1-Y1
0.5
Y1
0
-Y2
N
ormalized Time
N
ormalized Amplitude
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