JXP-01EEAB1 JDSU [JDS Uniphase Corporation], JXP-01EEAB1 Datasheet - Page 3

• Manufacturer Part Number: JXP-01EEAB1
• Description: Multiprotocol XFP Optical Transceiver-1550 nm for up to 40 km Reach
• Manufacturer: JDSU [JDS Uniphase Corporation]

3
Figure 1
MOD_DESEL
INTERRUPT
MOD_NR
RX_LOS
JDSU 10 Gbps 1550 nm multiprotocol XFP optical transceiver functional block diagram
SDA
SCL
RD+
TD+
RD-
TD-
Power Supply Sequence /
In Rush Control Circuit
V
cc3
V
Receiver
The receiver converts incoming DC balanced serial NRZ optical data from line
rate of 9.95 Gbps to 11.35 Gbps into serial XFI electrical data. Light is coupled to
a PIN photodetector from single-mode optical fiber through an industry standard
LC optical connector. The electrical current from the PIN photodetector is con-
verted to a voltage in a high-gain transimpedance amplifier.
The amplified signal is passed to a signal conditioning IC that provides clock and
data recovery. The receive CDR function generates a clock that is at the same fre-
quency as the incoming data bit rate of the optical data input. The clock is phase
aligned by a PLL (Phase Locked Loop) that samples the data in the center of the
data eye pattern. The CDR function does not require a reference clock to “lock”
to incoming data. The CDR contains a lock detect circuit that indicates successful
locking of the PLL onto the incoming data. Loss of signal, and signal lock detec-
tion is included in the receive circuitry that is reflected in the Mod_NR status pin.
The recovered data is output on the RD+ and RD- pins as a 100 Ω 340 mV peak-
to-peak CML signal. The output signal meets the XFP MSA requirements.
cc3
CDR / Equalizer
V
CDR / Limiting
cc5
PDOWN/RST
Amplifier
MUlTIPROTOCOl XFP OPTICAl TRANSCEIvER
—1550 NM FOR UP TO 40 KM REACH
V
Processor
cc3
No Connect
Micro-
V
cc2
MOD_ABS
V
Laser Control
GND
ee5
Circuit
Transceiver Ground
ROSA
V
GND
TIA
cc3
TOSA
REFCLK+
REFCLK-
TX_DIS