RoHS Compliant SFP Transceiver for SONET OC-48/SDH STM-16
with Digital Diagnostic Monitoring Function
FEATURES
Compliant with SFP Transceiver SFF-8472
MSA specification with internal calibration
LCP-2488B4JDR compliant with Short-haul
SONET OC-48 / SDH STM-16 (S-16.1)
LCP-2488B4MDR compliant with Long-haul
SONET OC-48 / SDH STM-16 (L-16.1)
LCP-2488D4RDR compliant with Long-haul
SONET OC-48 / SDH STM-16 (L-16.2)
Single + 3.3V Power Supply and TTL Logic
Interface
EEPROM with Serial ID Functionality
Laser Class 1 Product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
Duplex LC Connector interface
Description
The LCP-2488 series are hot pluggable 3.3V
Performance
Small-Form-Factor transceiver modules designed
Part number
expressly
for
high-speed
communication
applications that require rates up to 2.5Gb/s. The LCP-2488B4JDR
transceiver is data rate transparent, which means it LCP-2488B4MDR
LCP-2488D4RDR
can support OC-48/STM-16 as well as 2x Fiber
channel (2.125Gb/s), GbE (1.25Gb/s) and 1x Fiber
channel (1.062Gb/s).
The LCP-2488 series are designed to be
compliant with SFF-8472 SFP Multi-source
Agreement (MSA) with digital diagnostic
monitoring functions: Temperature, V
CC
, TX
optical power, TX laser bias current, and RX
received optical power.
The post-amplifier of the LCP-2488 series
also includes a Loss of Signal (LOS) circuit that
provides a TTL logic-high output when the
received optical level is below a preset LOS
Assert threshold.
Link
budget
13dB
25dB
26dB
Distance in
SMF
15km
40km
80km
1
DELTA ELECTRONICS, INC.
Mar., 2007
Rev. 3C
www.deltaww.com
Absolute Maximum Ratings
Parameter
Storage Temperature
Supply Voltage
Symbol
Ts
V
CC
Min.
-40
0
Typ.
Max.
85
5
Unit
ºC
V
Note
Recommended Operating Conditions
Parameter
Case Operating Temperature
Supply Voltage
Note 1: See order information
Symbol
T
C
V
CC
Min.
-5
3.135
Typ.
Max.
70
3.465
Unit
ºC
V
Note
1
Electrical Characteristics
(V
CC
=3.3V
±
5%)
Parameter
Total Supply Current
Transmitter
Transmitter Differential Input Voltage
Transmitter Disable Input-High
Transmitter Disable Input-Low
Transmitter Fault Pull up Resistor
Transmitter Fault Output-High
Transmitter Fault Output-Low
Receiver
Receiver Differential Output Voltage
Receiver LOS Load
LOS Output Voltage-High
LOS Output Voltage-Low
Symbol
I
CCT
V
DT
V
DISH
V
DISL
R
TX_FAULT
V
TXFH
V
TXFL
V
DR
R
RXLOS
V
LOSH
V
LOSL
Min.
Typ.
220
Max.
350
2.4
V
CC
+0.3
0.8
10
V
CC
+0.3
0.8
1
2
10
V
CC
+0.3
0.8
Unit
mA
V
V
V
kΩ
V
V
V
kΩ
V
V
Note
0.5
2
0
4.7
2
0
0.35
4.7
2
0
1
2
3
2
Notes:
1. Internally AC coupled and terminated to 100Ohm differential load.
2. Pull up to V
CC
on host Board
3. Internally AC coupled, but requires a 100Ohm differential termination at or internal to Serializer/
Deserializer.
2
DELTA ELECTRONICS, INC.
Mar., 2007
Rev. 3C
www.deltaww.com
Optical Characteristics
Transmitter
(V
CC
=3.3V
±
5%, Data Rate=2488Mb/sec, PRBS=2
23
-1 NRZ)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Note
Output Optical Power (Avg.)
LCP-2488B4JDR
-5
0
dBm
P
3
LCP-2488B4MDR
-2
3
LCP-2488D4RDR
-2
Optical Extinction Ratio
ER
9
dB
Center Wavelength
1360
1310
LCP-2488B4JDR
1260
λ
C
nm
1335
1310
LCP-2488B4MDR
1280
1580
1550
LCP-2488D4RDR
1500
Spectral Width
LCP-2488B4JDR (-20dB)
1
σ
nm
LCP-2488B4MDR (-20dB)
1
LCP-2488D4RDR (-20dB)
1
Side-mode Suppression Ratio
LCP-2488B4JDR
SMSR
30
dB
LCP-2488B4MDR
LCP-2488D4RDR
Optical Rise/ Fall Time
150/200
psec
1
t
r
/t
f
Relative Intensity Noise
RIN
-120
dB/Hz
Dispersion Penalty
Dp
2
dB
2
Jitter Generation
0.1
UI
Peak to Peak
J
PP
J
rms
0.01
RMS
Output Eye
Compliant with GR-253 and ITU recommendation G.957
Receiver
(V
CC
=3.3V
±
5%, Data Rate=2488Mb/sec, PRBS=2
23
-1 NRZ)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Note
Sensitivity (Avg.)
LCP-2488B4JDR
-18
P
S
dBm
3
LCP-2488B4MDR
-27
LCP-2488D4RDR
-28
Input Optical Wavelength
1360
1310
1260
LCP-2488B4JDR
λ
nm
1335
1310
1280
LCP-2488B4MDR
1580
1550
1500
LCP-2488D4RDR
LOS-Deasserted (Avg.)
LCP-2488B4JDR
-18
P
A
dBm
-27
LCP-2488B4MDR
-28
LCP-2488D4RDR
LOS-Asserted (Avg.)
-40
dBm
LCP-2488B4 Series
P
D
-40
LCP-2488D4RDR
LOS-Hysteresis
P
A
-P
D
0.5
dB
Overload
LCP-2488B4JDR
0
P
0
dBm
LCP-2488B4MDR
-9
LCP-2488D4RDR
-9
3
DELTA ELECTRONICS, INC.
Mar., 2007
Rev. 3C
www.deltaww.com
Reflectance
LCP-2488B4JDR
LCP-2488B4MDR
LCP-2488D4RDR
Notes:
1. These are unfiltered 20%~80% values.
r
-27
-27
-27
dB
2. SMF-28 fiber used. 80 km represents 1600ps/nm at 1550nm. Measured at 2.488 Gb/s with a
PRBS 2
23
-1 pattern at a BER<10
-10
.
3. The sensitivity is provided at a BER of 1×10
-12
or better with an input signal consisting of 2488Mb/s,
2
23
-1 PRBS and ER=9dB.
1.25
1.00
Mean level of logical “1”
Amplitude
0.75
0.25
0.00
-0.25
Mean level of logical “0”
Time
Optical Pulse Mask with Bessel Filter Specified in ITU-T G.957
Mask of the eye diagram for the optical transmit signal
4
DELTA ELECTRONICS, INC.
Mar., 2007
Rev. 3C
www.deltaww.com
SFP Transceiver Electrical Pad Layout
Pin Function Definitions
Pin Num.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Name
VeeT
TX Fault
TX Disable
MOD-DEF2
MOD-DEF1
MOD-DEF0
Rate Select
LOS
VeeR
VeeR
VeeR
RD-
RD+
VeeR
VccR
VccT
VeeT
TD+
TD-
VeeT
Function
Transmitter Ground
Transmitter Fault Indication
Transmitter Disable
Module Definition 2
Module Definition 1
Module Definition 0
Not Connect
Loss of Signal
Receiver Ground
Receiver Ground
Receiver Ground
Inv. Received Data Out
Received Data Out
Receiver Ground
Receiver Power
Transmitter Power
Transmitter Ground
Transmit Data In
Inv. Transmit Data In
Transmitter Ground
Plug Seq.
1
3
3
3
3
3
3
3
1
1
1
3
3
1
2
2
1
3
3
1
Notes
Note 1
Note 2
Module disables on high or open
Note 3, 2 wire serial ID interface
Note 3, 2 wire serial ID interface
Note 3, Grounded in Module
Function not available
Note 4
Note 5
Note 5
Note 5
Note 6
Note 7
Note 5
3.3 ± 5%, Note 7
3.3 ± 5%, Note 7
Note 5
Note 8
Note 8
Note 5
Plug Seq.: Pin engagement sequence during hot plugging.
5
DELTA ELECTRONICS, INC.
Mar., 2007
Rev. 3C
www.deltaww.com
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