SPBD-2488C4R1RD(T)
Intelligent SFP Bi-Directional Transceiver
Module for Multi-Rate 125-2700Mb/s
FEATURES
RoHS compliant
Compliant with SFP Transceiver SFF-8472 MSA
specification with internal calibration
Compliant with SFP Transceiver INF-8074i
specification
Simplex LC connector with 1490nm
Transmitter and 1570nm Receiver
Single + 3.3V power supply and TTL logic
interface
Supporting the multi-rate 125Mb/s to 2.7Gb/s
Bellcore GR-468 compliant
Laser class 1 product which comply with the
requirements of EN 60825-1 and EN 60825-2
Description
The SPBD-2488xxxx series are hot pluggable
3.3V
Small-Form-Factor
module
(SFP)
Bi-Directional
expressly
for
that
IEEE 802.3ah 1000BASE-BX
Gigabit Ethernet Application
Switch to switch/backbone interface
Application
SONET OC-48/STM 16
transceiver
high-speed
designed
communication
applications
require rates of up to 2488Mbit/sec. It is compliant
with the SONET OC48 standard, Gigabit Ethernet
standards, as well as the SFP Multisource
Agreement (MSA).
The SPBD-2488xxxx transceivers provide with
the LC receptacle that is compatible with the
industry standard LC connector. The transceiver is
also
compatible
with
industry
standard
RFT
Performance
Data link up to 80km in 9/125um single mode
fiber.
connector and cage. It also includes a LOS (Loss
Of Signal) circuit that provides a TTL logic-high
output when an unusable optical signal level is
detected.
1
DELTA ELECTRONICS, INC.
Revision: S0
10/05/2011
www.deltaww.com
SPBD-2488C4R1RD(T)
Absolute Maximum Ratings
Parameter
Storage Temperature
Storage Ambient Humidity
Power Supply Voltage
Signal Input Voltage
Receiver Damage Threshold
Symbol
Ts
H
A
V
CC
Min.
-40
5
-0.3
-0.3
0
Typ.
Max.
85
85
3.8
3.8
Unit
ºC
%
V
V
dBm
Note
Non-condensing
Recommended Operating Conditions
Parameter
Operating Case Temperature
Ambient Humidity
Power Supply Voltage
Power Supply Current
Power Dissipation
Data Rate
Coupled Fiber
Transmission Distance
Note:
Symbol
T
C
H
A
V
CC
I
CC
Pdiss
STM-1
STM-4
STM-16
GbE
Min.
-5
5
3.135
Typ.
3.3
Max.
70
85
3.465
300
1
Unit
ºC
%
V
mA
W
Mbps
Note
1,2
Non-condensing
155.52
622.08
2488.32
1250
Single Mode Fiber
80
3
km
1. Measured on topside of case front center.
2. Please see order information.
3. ITU-T G.652.
Specification of Transmitter
Parameter
Average Launched Power
Optical Extinction Ratio
Center Wavelength
Spectrum Width (-20dB)
Side Mode Suppression Ratio
Transmitter OFF Output Power
Relative Intensity Noise
Optical Return Loss Tolerance
Transmitter Return Loss Tolerance
Output Eye Mask
1.25 Gbps
2.488 Gbps
Note:
1. Launched power (avg.) is power coupled into a single mode fiber.
2. Eye Mask definition
2
DELTA ELECTRONICS, INC.
Symbol
P
O
ER
λ
C
σ
SMSR
P
Off
RIN
12
OMA
Min.
-2
8.2
1480
30
Typ.
Max.
+3
1500
1
-45
-120
1490
24
12
Compliant with IEEE 802.3
Compliant with ITU-T G.959.1
Unit
dBm
dB
nm
nm
dB
dBm
dB/Hz
dB
dB
Note
1
DFB Laser
2
Revision: S0
10/05/2011
www.deltaww.com
SPBD-2488C4R1RD(T)
1.25
1.00
Mean level of logical “1”
Amplitude
0.75
0.25
0.00
-0.25
Mean level of logical “0”
Time
Specified in ITU-T G.959.1
Specified in IEEE 802.3
Mask of the eye diagram for the optical transmit signal
3
DELTA ELECTRONICS, INC.
Revision: S0
10/05/2011
www.deltaww.com
SPBD-2488C4R1RD(T)
Specification of Receiver
Parameter
Input Optical Wavelength
Receiver Sensitivity
Input Saturation Power (Overload)
LOS-Deassert Power
LOS-Assert Power
LOS Hysteresis
Receiver reflectance
Note:
1. Measured withλ
IN
, ER=8.2 dB; BER =<10 @PRBS=2 -1 NRZ@2.488Gbps
Measured withλ
IN
, ER=8.2 dB; BER =<10 @PRBS=2 -1 NRZ@1.25Gbps
2. When LOS asserted, the data output is Low-level (fixed)
-12
7
-12
23
Symbol
λ
IN
P
IN
P
SAT
P
A
P
D
P
A
-P
D
Min.
1560
-10
Typ.
1570
Max.
1580
-29
-30
-45
0.5
6
-12
Unit
nm
dBm
dBm
dBm
dBm
dB
dB
Note
APD
1
2
Electrical Interface Characteristics
Parameter
Total Supply Current
Tx Differential Data Input Swing
Tx Differential line input Impedance
Tx Disable Input-High
Tx Disable Input-Low
Tx Fault Output-High
Tx Fault Output-Low
Tx Fault Pull up Resistor
Rx Differential Data Output Swing
LOS Output Voltage-High
LOS Output Voltage-Low
Rx Output Data Rise/Fall Time
Receiver LOS Load
Note:
1. There is an internal 4.7 to 10k
pull-up resistor to VccT.
2. Pull up to V
CC
on host Board.
3. Internally AC coupled with CML output, but requires a 100Ohm differential termination at or internal to
Serializer/ Deserializer.
Symbol
I
CC
V
DT
R
IN
V
DISH
V
DISL
V
TXFH
V
TXFL
R
TX_FAULT
V
DR
V
LOSH
V
LOSL
Tr/Tf
R
RXLOS
Min.
500
80
2
0
2
0
4.7
400
2
0
4.7
Typ.
Max.
300
2400
120
V
CC
0.8
V
CC
+0.3
0.8
10
1600
V
CC
+0.3
0.8
175
10
Unit
mA
mV
p-p
Ohm
V
V
V
V
k
mV
p-p
V
V
ms
k
Note
100
1
2
3
2
4
DELTA ELECTRONICS, INC.
Revision: S0
10/05/2011
www.deltaww.com
SPBD-2488C4R1RD(T)
Pin Description
SFP Transceiver Electrical Pad Layout
Host Board Connector 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
Note 3
Note 4, 2 wire serial ID interface
Note 4, 2 wire serial ID interface
Note 4, Grounded in Module
Function not available
Note 5
Note 6
Note 6
Note 7
Note 7
Note 8
Note 8
Plug Seq.: Pin engagement sequence during hot plugging.
5
DELTA ELECTRONICS, INC.
Revision: S0
10/05/2011
www.deltaww.com
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