sfp-gi2lktd5dca JDS Uniphase Corporation, sfp-gi2lktd5dca Datasheet - Page 3

• Manufacturer Part Number: sfp-gi2lktd5dca
• Description: Sfp Optical Transceiver--oc-48 And Oc-12 For Up To 80-km Reach And Gigabit Ethernet For Up To 120-km Reach
• Manufacturer: JDS Uniphase Corporation

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MOD_DEF(1)
MOD_DEF(2)
TX_FAULT
RX_LOS
TX_DIS
RD+
TD+
RD-
TD-
Power Supply Sequence
Figure 1
V
ccT
MCU
Low-speed Signaling
Low-speed signaling is based on low-voltage TTL (LVTTL) operating at a nominal
voltage of 3.3 V.
MOD_DEF(1) / MOD_DEF(2): Two-wire serial interface clock and data line.
Hosts should use a pull-up resistor connected to Vcc 3.3 V on the two-wire inter-
face MOD_DEF(1) (clock), MOD_DEF(2) (data), and all low-speed outputs.
TX_FAULT: Output pin. When high, indicates possible transmitter operational
fault or a status critical to the host system.
TX_DIS: Input pin. When asserted high, the transmitter output is turned off.
Mod_DEF(0): Output pin. Pulled to ground by the module to indicate that the
module is present.
RX_LOS: Output pin. Asserted high when insufficient optical power for reliable
signal reception is received.
SFP OPTICAL TRANSCEIVER—OC-48 AND OC-12 FOR UP TO
80-KM REACH AND GIGABIT ETHERNET FOR UP TO 120-KM REACH
SFP optical transceiver functional block diagram
V
Post Amplifier
ccR
Laser Driver
Transceiver Ground
V
eeT
ROSA
TIA
TOSA
V
eeR
MOD_DEF(0)
TX_DIS