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Intelligent SFP Bi-Directional Transceiver
Module for Gigabit Ethernet
FEATURES
z RoHS compliant
z Digital Diagnostic SFF-8472 Compliant
z Simplex LC connector with 1310nm
Transmitter and 1490nm Receiver
z Integrated with WDM filter to cut 1550nm and
1650nm optical signal off
z Single + 3.3V power supply and TTL logic
interface
z Bellcore GR-468 compliant
z Laser class 1 product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
SPBD-1250A4Q1R
Description
The SPBD-1250xxxx series are hot pluggable
3.3V Small-Form-Factor (SFP) Bi-Directional
transceiver module designed expressly for
high-speed communication applications that
require rates of up to 1250Mbit/sec. It is compliant
with the Gigabit Ethernet standards, as well as the
SFP Multisource Agreement (MSA).
The SPBD-1250xxxx transceivers provide with
the LC receptacle that is compatible with the
industry standard LC connector. The transceiver is
also compatible with industry standard RFT
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.
The module includes 1310nm un-cool FP laser,
InGaAs PIN, Preamplifer and WDM filter in a
high-integrated optical assembly for high-density
system application. The SFP Bi-Directional
transceiver can upgrade transmission capacity very
convenient without installing new fibers.
Application
z IEEE 802.3ah 1000BASE-BX10
z Gigabit Ethernet Application
z FTTx WDM Broadband Access
z Switch to switch/backbone interface
Performance
z SPBD-1250A4Q1R data link up to 10km in
9/125um single mode fiber.
DELTA ELECTRONICS, INC.
1 Revision: S1
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www.deltaww.com
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SPBD-1250A4Q1R
1. Absolute Maximum Ratings
Parameter Symbol Min. Typ. Max. Unit Note
Storage Temperature Ts -40 85 ºC
Storage Ambient Humidity HA 5 95 %
Power Supply Voltage VCC 0 5 V
Signal Input Voltage -0.3 Vcc+0.3 V
Optical Input Power (Peak) +3 dBm
2. Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Unit Note
Operating Case Temperature TC -5 75 ºC Note (1)
Ambient Humidity HA 5 85 %
Power Supply Voltage VCC 3.135 3.3 3.465 V
Power Supply Current ICC 300 mA
Power Supply Noise Rejection 100 mVp-p
Data Rate
1250
-100ppm
1250
1250
+100ppm
Mbps
Transmission Distance 10 km
Note (1). Measured on topside of case front center.
Non-condensing
100Hz to 1MHz
3. Specification of Transmitter
Parameter Symbol Min. Typ . Max. Unit Note
Average Launched Power PO -9 -6 -3 dBm Note (1)
Optical Extinction Ratio ER
Optical Modulation Amplitude OMA
Center Wavelength
Spectrum Width (RMS)
Transmitter OFF Output Power P
λ
C
σ
Off
9
195
-7.1
1270 1310 1360 nm FP Laser
Compliant with IEEE 802.3ah
-45
Optical Rise/Fall Time tr/tf 260 ps Note (2)
Deterministic Jitter DJ 80 ps
Total Jitter TJ 227 ps Note (3)
Relative Intensity Noise RIN12OMA
-113
Optical Return Loss Tolerance ORLT 12 dB
Transmitter Reflectance -12 dB
Output Eye Mask
{X1,X2,Y1,Y2,Y3}
Compliant with IEEE 802.3ah standard
{0.22,0.375,0.20,0.20,0.30}
Note (1). Launched power (avg.) is power coupled into a single mode fiber.
Note (2). These are unfiltered 20-80% values.
7
Note (3). Measure at 2
-1 NRZ PRBS pattern.
dB
uW
dBm
nm Note (4)
dBm
dB/Hz
Note (5)
DELTA ELECTRONICS, INC.
2 Revision: S1
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R
N
Note (4): Spectral Width (RMS)
SPBD-1250A4Q1R
Center Wavelength
MS spectral width(max)
1000Base-BX10-U
nm nm
1260 2.09
1270 2.52
1280 3.13
1290
1295
1297
1329
1331
1340
1350 3.06
1360 2.58
3.50
Note (5). Eye Mask definition
1+ Y 3
1
1- Y1
0.5
Y1
Transmitter Spectral Limits
4
3
2
RMS (nm)
1
0
1240 1260 1280 1300 1320 1340 1360 1380
Center Wavelength (nm)
Normalized Amplitude
- Y2
0
X1 X2
ormalized Time
1-X2
1-X1
1
4. Specification of Receiver
Parameter Symbol Min. Typ . Max. Unit Note
Input Optical Wavelength
λ
IN
Receiver Sensitivity PIN
Input Saturation Power (Overload) P
SAT
Receive Sensitivity OMA OMA
LOS-Deassert Power PA - -24 dBm
LOS-Assert Power PD -44 dBm Note (3)
LOS Hysteresis PA-PD 0.5 2 6 dB
Receiver Reflectance -12 dB Note (4)
DELTA ELECTRONICS, INC.
1480 1500 nm PIN-PD
-23
dBm Note (1)
-3 dBm
5.0
-21.1
uW
dBm
Note (2)
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SPBD-1250A4Q1R
Stressed Receive sensitivity -15.4 dBm
Stressed Receive sensitivity OMA
44.8
-13.5
uW
dBm
Vertical Eye-closure Penalty V ECP 2.6 dB
Deterministic Jitter DJ 170 ps
Total Jitter TJ 266 ps
Output Data Rise/Fall time tr/tf 260 ps Note (5)
Receiver 3dB upper cutoff frequency 1500 MHz
Optical Isolation
from External
Source
Note (1). Measured with 1490nm, ER=9dB; BER =<10
1260 to 1360nm -43 dB
1550 to 1560nm -33 dB
1640 to 1665nm -33 dB
-12
@PRBS=27-1 NRZ
Note (2). Specified with minimum optical extinction ration of 9dB.
Note (3). When LOS asserted, the data output is Low-level (fixed)
Note (4). When the terminal is viewed from the optical path, the reflection toward the optical path of the
optical signal with a central wavelength of 1480nm to 1500nm transmitted to terminal.
Note (5). These are 20%~80% values
5. Electrical Interface Characteristics
Parameter Symbol Min. Typ . Max. Unit Note
Transmitter
Total Supply Current ICC A mA Note (1)
Differential Data Input Swing VDT 500 2400 mV
Differential line input Impedance RIN 80 100 120 Ohm
Transmitter Disable Input-High V
Transmitter Disable Input-Low V
Transmitter Fault Output-High V
Transmitter Fault Output-Low V
Transmitter Fault Pull up Resistor R
2 VCC V Note (2)
DISH
0 0.8 V
DISL
2 VCC+0.3 V
TXFH
0 0.8 V
TXFL
TX_FAULT
4.7 10 k Note (3)
Receiver
Total Supply Current ICC B mA Note (1)
Differential Data Output Swing VDR 400 900 mV
LOS Output Voltage-High V
LOS Output Voltage-Low V
Receiver LOS Load R
2 VCC+0.3 V
LOSH
0 0.8 V
LOSL
4.7 10 k Note (3)
RXLOS
Note (1). A (TX)+ B (RX) = 300mA
(A: Not include termination circuit; B: using a resister of 150 between Data-output and ground)
Note (2). There is an internal 4.7 to 10k pull-up resistor to VccT.
Note (3). Pull up to V
on host Board.
CC
Note (4). Internally AC coupled with CML output, but requires a 100Ohm differential termination at or
internal to Serializer/ Deserializer.
p-p
Note (4)
p-p
DELTA ELECTRONICS, INC.
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SPBD-1250A4Q1R
6. Enhanced Digital Diagnostic Interface
The memory map in the following describes an extension to the memory map defined in SFP MSA.
The enhanced interface uses the two wire serial bus address 1010001X(A2h) to provide diagnostic
information about the module’s present operating conditions.
2 wire address 1010000 X (A0h) 2 wire address 1010001 X (A2h)
0 0
Alarm and Warning Thresholds
(56 bytes)
Serial ID Defined by SFP MSA
95
96 96
127
128 128
(96 bytes)
Vender Specific
(32 bytes)
Reserved in SFP MSA
(128 bytes)
55
56
Cal Constants
(40 bytes)
95
Real Time Diagnostic Interface
(24 bytes)
119
120
Vender Specific
127
User Writable EEPROM
(120 bytes)
247
255
248
255
7. Digital Diagnostic Monitor Accuracy
Parameter Accuracy Unit Calibration Note
Transceiver Internal Temperature
Power Supply Internal Voltage ± 3%
TX Bias Current ± 10%
TX Optical Power ± 3dB
RX Optical Power ± 3dB
Note. Temperature and Voltage is measured internal to the transceiver.
DELTA ELECTRONICS, INC.
± 3℃
℃
V Internal VCC=3.3V±5%
mA Internal Specified by nominal bias value
dBm Internal -9 to -3dBm
dBm Internal -23 to -3dBm
5 Revision: S1
Internal
Vender Specific
(8 bytes)
T
C=-5~+75℃
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SPBD-1250A4Q1R
8. Pin Description
SFP Transceiver Electrical Pad Layout Host Board Connector Pad Layout
Pin Function Definitions
Pin Num. Name Function Plug Seq. Notes
1 VeeT Transmitter Ground 1 Note (1)
2 TX Fault Transmitter Fault Indication 3 Note (2)
3 TX Disable Transmitter Disable 3 Note (3)
4 MOD-DEF2 Module Definition 2 3 Note (4), 2 wire serial ID interface
5 MOD-DEF1 Module Definition 1 3 Note (4), 2 wire serial ID interface
6 MOD-DEF0 Module Definition 0 3 Note (4), Grounded in Module
7 Rate Select Not Connect 3 Function not available
8 LOS Loss of Signal 3 Note (5)
9 VeeR Receiver Ground 1
10 VeeR Receiver Ground 1
11 VeeR Receiver Ground 1
12 RD- Inv. Received Data Out 3 Note (6)
13 RD+ Received Data Out 3 Note (6)
14 VeeR Receiver Ground 1
15 VccR Receiver Power 2 Note (7)
16 VccT Transmitter Power 2 Note (7)
17 VeeT Transmitter Ground 1
18 TD+ Transmit Data In 3 Note (8)
19 TD- Inv. Transmit Data In 3 Note (8)
20 VeeT Transmitter Ground 1
Plug Seq.: Pin engagement sequence during hot plugging.
DELTA ELECTRONICS, INC.
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SPBD-1250A4Q1R
Notes:
1) Circuit ground is internally isolated from frame (chassis) ground. Tx GND and Rx GND may be internally isolated
within the TRx module.
2) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K~10K resistor on the host board.
Pull up voltage between 2.0V and VccT+0.3V. The output indicates Low when the transmitter is operating
normally, and High with a laser fault including laser end-of-life. In the low state, the output will be pulled to less
than 0.8V.
3) TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module
with a 4.7 – 10 K resistor. Its states are:
Low (0 – 0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 – 3.465V): Transmitter Disabled
Open: Transmitter Disabled
4) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10Kresistor on the
host board. The pull-up voltage shall be VccT or VccR.
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is the clock line of two-wire serial interface for serial ID
Mod-Def 2 is the data line of two-wire serial interface for serial ID
5) LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K – 10K resistor.
Pull up voltage between 2.0V and VccR+0.3V. When high, this output indicates the received optical power is
below the worst-case receiver sensitivity. Low indicates normal operation. In the low state, the output will be
pulled to less than 0.8V.
6) RD-/+: These are the differential receiver outputs. They are AC coupled 100 differential lines which should be
terminated with 100 (differential) at the user SERDES. The AC coupling is done inside the module and is thus
not required on the host board.
7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP
connector pin. Recommended host board power supply filtering is shown below page. Inductors with DC
resistance of less than 1 Ohm should be used in order to maintain the required voltage at the SFP input pin with
3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP
transceiver module will result in an inrush current of no more than 30 mA greater than the steady state value.
8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100
differential termination inside the module. The AC coupling is done inside the module and is thus not
required on the host board. The inputs will accept differential swings of 500 – 2400 mV (250 – 1200
mV single-ended), though it is recommended that values between 500 and 1200 mV differential (250 –
600 mV single-ended) be used for best EMI performance.
DELTA ELECTRONICS, INC.
7 Revision: S1
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Page 8
9. Recommend Interface Circuit
SPBD-1250A4Q1R
Protocol Vcc
Tx_Disable
Tx_Fault
Rx_LOS
VCC
SerDes ICProtocol IC
PLD / PAL
1uH
1uH
RES1
100 Ohms*
3.3V
0.1uF10uF
RES1
3.3V
RES1 RES1 RES1
RES1 = 4.7k to 10k Ohms
* Depands on SerDes IC used
SFP Host Board Schematic
0.1uF
Tx_Disable
Tx_Fault
TD +
TD -
VeeT
0.1uF10uF
RD +
RD -
Rx_LOS
VeeR
Mod_def 2
Mod_def 1
Mod_def 0
DELTA SFP Module
VccT
10k Ohms
0.01uF
100 Ohms
0.01uF
VccR
0.01uF
0.01uF
Laser Dr iver
Preamp &
Quantizer
EEPROM
Laser Di ode
Photo Diode
Recommended Host Board Supply Filtering Network
DELTA ELECTRONICS, INC.
Design criterion of the capacitor used is the
resonant frequency and its value must be in the
order of the nominal data rate. Short trace
lengths are mandatory.
8 Revision: S1
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10. Outline Dimensions
SPBD-1250A4Q1R
Class 1 Laser Product
XXXX nm Tx / Rx XXXX nm
FS
Made in x
1040.10 and 1040.11
Complies with 21 CFR
Transmitter Wavelength Latch Color Identifier
1310nm
1490nm
Week (52Weeks/Year) : 1月2日=01
Blue
Violet
DELTA ELECTRONICS, INC.
9 Revision: S1
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SPBD-1250A4Q1R
11. Regulatory Compliance
Feature Test M e t h o d Reference Performance
Electrostatic Discharge
(ESD) to the Electrical
Pins
(ESD) to the Simplex
Receptacle
Radio Frequency
Electromagnetic Field
Immunity
Electromagnetic
Interference (EMI)
Laser Eye Safety
Component Recognition
Human Body Model
(HBM)
Machine Model (MM) EIA-JESD22-A115
Contact Discharge IEC/EN 61000-4-2 Electrostatic Discharge
Air Discharge
IEC/EN 61000-4-3
FCC Part 15 Class B
FDA/CDRH
TUV
TUV
UL/CSA
MIL-STD-883E Method 3015.7
EIA-JESD22-A114
IEC/EN 61000-4-2
EN 55022 Class B
(CISPR 22A)
FDA 21CFR 1040.10, 1040.11
IEC/EN 60825-1
IEC/EN 60825-2
IEC/EN 60950
UL 60950
(1) Satisfied with
electrical
characteristics of
product spec.
(2) No physical damage
CDRH File # 0420993
TUV Certificate #
R50032471
UL File # E239394
Appendix A. Document Revision
Version No. Date Description
S0 2006-08-15 Preliminary datasheet
S1 2007-03-12 Change the specification of Optical Rise/Fall Time from 200ps to 260ps.
DELTA ELECTRONICS, INC.
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