PLRXPL-VE-SG4-62-X JDSU [JDS Uniphase Corporation], PLRXPL-VE-SG4-62-X Datasheet - Page 16

• Manufacturer Part Number: PLRXPL-VE-SG4-62-X
• Description: RoHS-Compliant 4.25 Gbps 850 nm eSFP Transceivers
• Manufacturer: JDSU [JDS Uniphase Corporation]

ROHS-COMPLIANT 4.25 GBPS 850 NM TRANSCEIVERS
16
Vcc/Supply Voltage in Volts: Internally measured. Represented as a 16 bit un-
signed integer with the voltage defi ned as the full 16 bit value(0-65535) with LSB
equal to 100μV with a measurement range of 0 to +6.55V. Accuracy is ± 3% of
nominal value over the specifi ed operating temperature and voltage ranges.
TX Bias Current in μA: Represented as a 16 bit unsigned integer with current
defi ned as the full 16 bit value(0-65535) with LSB equal to 2μA with a measure-
ment range of 0 - 131μA. Accuracy is ± 10% of nominal value over the specifi ed
operating temperature and voltage ranges.
TX Output Power in mW: Represented as a 16 bit unsigned integer with the power
defi ned as the full 16 bit value (0-65535) with LSB equal to 0.1μW. Accuracy is ±
2dB over the specifi ed temperature and voltage ranges over the range of 100μW to
800μW( -10dBm to -1dBm). Data is not valid when transmitter is disabled.
RX Received Optical Power in mW: Represented as average power as a 16 bit un-
signed integer with the power defi ned as the full 16 bit value(0-65535) with LSB
equal to 0.1μW. Accuracy is ± 3dB over the specifi ed temperature and voltage
ranges over the power range of 30μW to 1000μW (-15dBm to 0dBm).
Reading the data
The information is accessed through the MOD_DEF(1), and MOD_DEF(2) con-
nector pins of the module. The specifi cation for this EEPROM (ATMEL AT-
24CO1A family) contains all the timing and addressing information required for
accessing the data.
The device address used to read the Serial ID data is 1010000X(A0h), and the ad-
dress to read the diagnostic data is 1010001X(A2h). Any other device addresses
will be ignored. Refer to Table 4, Table 5, and Table 6 for information regarding
addresses and data fi eld descriptions
MOD_DEF(0), pin 6 on the transceiver, is connected to Logic 0 (Ground) on the
transceiver.
MOD_DEF(1), pin 5 on the transceiver, is connected to the SCL pin of the EEPROM.
MOD_DEF(2), pin 4 on the transceiver, is connected to the SDA pin of the EEPROM.
The EEPROM WP pin is internally tied to ground with no external access, allowing
write access to the customer-writable fi eld(bytes 128-247 of address 1010001X).
Note: address bytes 0-127 are not write protected and may cause diagnostic mal-
functions if written over.
Decoding the data
The information stored in the EEPROM including organization is defi ned in the
Small Form-Factor document SFF-8472 draft rev 9.5, dated June 1, 2004.