JSH-42L3AD3-20 JDS UNIPHASE, JSH-42L3AD3-20 Datasheet - Page 19

• Manufacturer Part Number: JSH-42L3AD3-20
• Manufacturer: JDS UNIPHASE

Specifications of JSH-42L3AD3-20

• Number Of Receivers: 1
• Operating Supply Voltage (typ): 3.3V
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Operating Temperature (max): 85C
• Lead Free Status / Rohs Status: Compliant

Optical Receiver Specifications
October 2008
1. The minimum and maximum values of the average received power in dBm give the input power range to maintain a
2. Optical Modulation Amplitude (OMA) is defined as the difference in optical power between a logic level one and a logic level zero.
3. The Rx_LOS has hysteresis to minimize “chatter” on the output line. In principle, hysteresis alone does not guarantee chatter-free
Symbol
OMA
OMA
OMA
BW
BER < 10
the use of a laser transmitter with a worst-case combination of spectral width, extinction ratio and pulse shape characteristics.
The Optical Modulation Amplitude is defined in terms of average optical power (P
OMA=2P
the average optical power in a logic level zero measured under fully modulated conditions in the presence of worst case reflec-
tions, must be the absolute (unit less linear) ratio and not expressed in dB. For example, the specified OMA at 4.25 Gb/s is equiv-
alent to an average power of -17.3 dBm at an ER of 9 dB. At 1.0625 Gb/s and 2.125 Gb/s, the specified OMA is equivalent to an
average power of -20.2 dBm at an ER of 9 dB. Typical values below the minimum specification indicate margin beyond the speci-
fication.
operation. The transceiver, however, presents an Rx_LOS line without chatter, where chatter is defined as a transient response
having a voltage level of greater than 0.5 volts (in the case of going from the negate level to the assert level) and of any duration
that can be sensed by the host logic.
P
P
RL
λ
off
on
Rx
op
op
op
AVG
-12
Operating Wavelength
Return Loss of Receiver
OMA operational range - 4.25 Gb/s
OMA operational range - 2.125 Gb/s
OMA operational range - 1.0625 Gb/s
Rx_LOS Assert Level
Rx_LOS De-Assert (negate) Level
Rx_LOS Hysteresis
Receiver Electrical 3 dB Upper Cutoff Frequency
when the data is sampled in the center of the receiver eye. These values take into account power penalties caused by
((ER-1)/(ER+1)). The extinction ratio, defined as the ratio of the average optical power (in μW) in a logic level one to
Parameter
1270
Min
-30
0.5
12
29
15
15
Typical
AVG
10
6
6
2
JSH-42L3AD3-20S / 64P0682
in μW) and extinction ratio (ER) as given by
JDSU Product Specification 21121822-001
1365
2000
2000
2000
-20.5
5000
Max.
-20
5
LW 4x/2x/1x FC SFP with DDM
dB (optical)
μW (pk-pk)
μW (pk-pk)
μW (pk-pk)
dBm (avg)
dBm (avg)
MHz
Unit
nm
dB
Page 19 of 45
Notes
1, 2
1, 2
1, 2
3
3
3
,