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1345 View Datasheet(PDF) - Agere -> LSI Corporation

Part Name
Description
Manufacturer
1345 Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Data Sheet
January 2000
1345-Type Receiver with
Clock Recovery and Data Retiming
Characteristics (continued)
Table 2. Optical Characteristics
Parameter
Symbol
Data Rates
Mbits/s
Min
Typ
Max*
Unit
Measured Average Sensitivity:*, †
OC-3
PRL
OC-3/STM-1
OC-12
PRL OC-12/STM-4
Maximum Input Power
PMAX OC-3/STM-1
0
OC-12/STM-4
–6
Link Status Flag Threshold:
Decreasing Light Input
LSTD OC-3/STM-1
–50
OC-12/STM-4 –50
Decreasing Light Input
LSTI OC-3/STM-1
–50
OC-12/STM-4 –50
Flag Hysteresis
HYS
155/622
0.5
Flag Response Time
tFLAG
155/622
3
Detector Responsivity
R
155/622
0.7
38
–32.5
2
–4
–41
–38.8
–38
–35
3
0.8
–36
–30
–37.5
–32.5
–37.0
–32.0
6
100
1.2
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dB
µs
A/W
* For a 1 x 10–10 BER. Measured with a 223 – 1 pseudorandom word optical input having a 50% average duty cycle.
† Whenever the flag output is deasserted (logic low), the DATA and CLOCK outputs are silenced. See the Flag Output section on
page 2 for the DATA and CLOCK output signal levels.
‡ Power supply noise in excess of 50 mVp-p may degrade the performance of the receiver. See User Interface section for recom-
mended power supply filtering.
DATAOUT
50%
CLOCKOUT
50%
TCDA
Figure 4. Clock/Data Alignment
1-725(C)
Agere Systems Inc.
7
 

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