Finisar XFP Optical Transceiver Evaluation Board
| Manufacturer | II-VI Finisar |
| Manufacturer Part Number | FDB-1022 |
| Product Category | Fiber Optic Transceiver Evaluation Board |
| Lifecycle | Active |
| Stock | Ships Immediately |
| Supporting Documents | Datasheet |
| Environmental Classification | RoHS Compliant |
Specifications
FDB-1022 contains onboard switching and linear power supplies to provide all three required module power supplies (1.8V, 3.3V and 5.0V) from a single external +12V connection. The outputs of each onboard supply are factory set, and may be switched off and on using S2. These supplies can be adjusted and monitored (both voltage and current) using the supplied evaluation board software. By removing jumpers J8, J11 and/or J12, the on-board supplies may be disconnected from the module and external supplies be connected at test points labeled 1.8/3.3/5.0V MOD PIN. These test points may be used to confirm the voltage at the module supply pins when using the on-board supplies.
As supplied, the FDB-1022 is configured to accept a 10Gb/s differential REFCLK signal at SMA connectors J5/J6. An onboard divider converts this signal to the 1/64 rate REFCLK the XFP transceiver module requires. Alternatively, the board may be configured to allow a direct connection of a 1/64 clock through SMA connectors J16 and J21.
The FDB-1022 evaluation board is supplied with software and a DB-25 cable for communication with a PC parallel port. This cable allows direct communication between the PC and the module via the 2-wire serial bus on pins SCL and SDA. XFP modules respond to 2-wire serial bus address A0h. Additionally, various evaluation board functions may be addressed on other I2C addresses.
The software included with the board provides a simple windows-based GUI and allows control and monitoring of the power supply and status functions of the evaluation board itself. Future versions of the software will allow monitoring of the Serial ID, digital diagnostics and status information available in Finisar’s XFP transceivers.
The Finisar FDB-1022 evaluation board requires a +12V ±10% power supply at J14. Input signals to the TX+ and TX- connectors should have an amplitude between 140mV and 700mV differential peak-to-peak (70mV to 350mV single-ended). Output signals on the RX+ and RX- connectors will have amplitudes between 180mV and 640mV single-ended.
A 10Gb/s REFCLK may be supplied at J5/J6. The onboard divider requires a signal amplitude of 200–1000 mV differential p-p (100-500mV S.E.). If a direct REFCLK connection is made, a signal of 640 – 1600 mV differential p-p (320 – 800 mV S.E.) is required.