JSH-42L3AD3-20 JDS UNIPHASE, JSH-42L3AD3-20 Datasheet - Page 6

• 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

JSH-42L3AD3-20S / 64P0682
LW 4x/2x/1x FC SFP with DDM
Input Signal Definitions
Levels for the signals described in this section are listed in Transmit Signal Interface on page 16 and Control
Electrical Interface on page 17.
Tx_DAT
A differential serial data stream is presented to the transceiver for transmission onto an optical fiber by modu-
lating the optical output intensity of the laser.
Tx_Disable
When high (logic one), the Tx_Disable signal turns off the power to both the AC and DC laser driver circuits.
It will also reset a laser fault if one should happen. When low (logic zero), the laser will be turned on within
1ms unless a Tx_Fault condition exists.
When this signal is asserted, the laser monitoring function will report low power and low bias current. The
alarm/warning flags for these quantities will also become active. Additionally, the Tx_Disable indicator, bit 7 in
byte 110 of the DDM page will become active. See Monitor Data Table 4 on page 35.
Application_Select (0:1)
The transceiver provides multiple application selection capability in accordance with the SFF-8079+ and SFF-
8089[6]. The Application_Select pins control internal settings which configure the transceiver for optimal per-
formance at a given data rate. The Application_Select(0) was previously labelled Rate Select and
Application_Select(1) was an Rx Ground. Full software control based on the application select tables in the
A0 page is also available. These pins are compatible with previous implementations of SFP transceivers.
JDSU Product Specification 21121822-001
Page 6 of 45
Application_Select(0)
Application_Select(1)
Transmitter optical
Tx_Disable
Data Rate
signal
t_off
< 10 μs
4xFC (4.250 Gb/s)
t_reset
0 or 1 or float
0 or 1 or float
> 10 μs
t_on
< 1 ms
2xFC (2.125 Gb/s)
0 or 1 or float
0 or 1 or float
1xFC (1.0625 Gb/s)
0 or 1 or float
0 or 1 or float
GbE (1.250 Gb/s)
Not Applicable
Not applicable
October 2008