jxp-01lmad1 JDS Uniphase Corporation, jxp-01lmad1 Datasheet - Page 2

• Manufacturer Part Number: jxp-01lmad1
• Description: Multiprotocol Xfp Optical Transceiver --1310 Nm Dfb For Up To 10-km Reach
• Manufacturer: JDS Uniphase Corporation

2
Section 1
The transceiver is a fully duplex serial electric, serial optical device with both trans-
mit and receive functions contained in a single module that provides a high-speed
serial link at signaling rates from 9.95 to 11.35 Gbps. It is designed to be compliant
with Telcordia GR-253-CORE OC-192 SR-1 for 2-km reach (SONET), ITU-T G.691
STM-64 I-64.1 for 2-km reach (SDH), IEEE 802.3-2005 Clause 52 10GBase-LR and
10GBase-LW for 10-km reach (Ethernet) and 10GFC 1200-SM-LL-L for 10-km
reach (Fibre Channel). The transceiver is also fully compliant with the 10 Gigabit
Small Form Factor XFP Pluggable Module Multi-Source Agreement INF8077i Rev.
4.5. A block diagram of the transceiver is shown in Figure 1 below.
The transceiver locks to data without the requirement of reference clock. The refer-
ence clock inputs have an internal 100 ohm differential line-to-line termination. It
has several low-speed interface connections including a two-wire serial interface.
These connections include: module not ready (Mod_NR), module deselect (Mod_
DeSel), interrupt, transmitter disable (TX_DIS), module absent (Mod_ABS), re-
ceive loss (RX_LOS), and power down/reset (P_Down/RST).
The XFP transceiver supports XFI system loopback. In this mode, data input on the
electrical Tx pins of the XFP module is retimed and is re-directed to the Rx pins of
the module. This facilitates system side test and debug. The XFP transceiver also
supports line loopback. In this mode, data input on the optical Rx port of the XFP
module is retimed and is re-directed to the optical Tx port of the module. This fa-
cilitates line-side test and debug.
Transmitter
The transmitter path converts serial NRZ electrical data from line rates of 9.95 to
11.35 Gbps to a standard compliant optical signal. The transmitter accepts a 100 Ω
differential 120 mV peak-to-peak to 820 mV peak-to-peak 10 Gbps CML electrical
signal on TD- and TD+ pins.
Inside the module, the differential signals pass through a signal conditioner with
equalization that compensates for losses and deterministic jitter present on the input
data stream. The transmit CDR function generates a clock that is at the same fre-
quency as the incoming data bit rate of the electrical data input. The clock is phase
aligned by a phase locked loop (PLL) that samples the data in the center of the data
eye pattern. The CDR function does not require a reference clock to lock to incom-
ing data. The CDR contains a lock-detect circuit that indicates successful locking of
the PLL onto the incoming data.
The output of the Tx signal conditioner is input to the laser driver circuit which
transforms the small-swing digital voltage to an output modulation that drives a
direct feedback (DFB) laser. The optical signal meets the SONET/SDH, 10 Gigabit
Ethernet, 10 G Fibre Channel and corresponding forward error correction (FEC)
rates specifications. Closed-loop control of the transmitted laser power and modula-
tion swing over temperature and voltage variations is provided. The laser is coupled
to single-mode optical fiber through an industry standard LC optical connector.
MULTIPROTOCOL XFP OPTICAL TRANSCEIVER
—1310 NM DFB FOR UP TO 10-KM REACH
Functional Description