FWDM-1521-7D-47 FINISAR [Finisar Corporation.], FWDM-1521-7D-47 Datasheet - Page 7

• Manufacturer Part Number: FWDM-1521-7D-47
• Description: Multi-rate CWDM Pluggable SFP Transceiver
• Manufacturer: FINISAR [Finisar Corporation.]

FWDM-1521-7D-xx SFP Product Specification – September 2005
IX.
All Finisar SFPs support the 2-wire serial communication protocol outlined in the SFP
MSA
(see table below for E
the Atmel data sheet titled “AT24C01A/02/04/08/16 2-Wire Serial CMOS E
Finisar’s CWDM SFPs also support extended diagnostic features as described in Finisar
Applications Note AN-2030, “Digital Diagnostic Monitoring Interface for Optical
Transceivers”
Diagnostic Monitoring Interface for Optical Transceivers
controller IC that monitors system parameters such as laser current, module temperature,
transmitter power, and received power is accessible at address A2H.
I2C clock speed, digital diagnostic accuracy and digital diagnostic range can be found in
the table below. Values in the table represent the worst-case values over temperature,
voltage, and life.
Parameter
I
Accuracy
Internal Transceiver
Temperature
Internal Transceiver
Supply Voltage
Tx Bias Curent
Tx Output Power
Received Average Power
Range
Internal Transceiver
Temperature
Internal Transceiver
Supply Voltage
Tx Bias Curent
Tx Output Power
Received Average Power
Finisar Corporation September 2005 Rev.D
2
C Clock Speed
5
. These SFPs use an Atmel AT24C01A 128 byte E
Digital Diagnostic Functions
7
, and additional information is available in SFF standard titled: “Digital
2
PROM contents). For details on interfacing with the E
DD
DD
Symbol
DD
DD
DD
DD
DD
DD
DD
DD
Temperatu
Temperatu
TxPower
RxPower
TxPower
RxPower
Voltage
Voltage
re
re
Bias
Bias
Min Typ
-10
-40
3.0
-10
-23
-3
-3
-3
-3
0
0
100,000
Max
+10
4.0
+3
+3
+3
+3
85
90
5
0
2
PROM with an address of A0h
Units Notes/Conditions
dBm
dBm
mA
Hz
dB
dB
°C
°C
%
%
V
8
(SFF-8472 rev9.3). A
Bus can be driven blind
Measured at controller IC
Measured at controller IC
100% tested in production
tested at room temp to 2 dB
100% tested in production
tested at room temp to 2 dB
F i n i s a r
2
PROM.”
2
PROM, see
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