DATASHEET
4.3
SO-SFP-1000BASE-ZXD
SFP, 1.25 Gbps GigE, 1550nm, SM/MM, DDM, 24dB, 80km
OVERVIEW
The SO-SFP-1000BASE-ZXD series single-mode transceiver is small form factor pluggable module for serial optical data
communications such as IEEE 802.3z Gigabit Ethernet 1000BASE-ZX and Fibre Channel 1x SM-LC-L FC-PI. It is with the SFP 20-pin
connector to allow hot plug capability. This module is designed for single mode fiber and operates at a nominal wavelength of
1550nm. The transmitter section uses a multiple quantum well 1550nm DFB laser and is a class 1 laser compliant according to
International Safety Standard IEC-60825. The receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an
optical header and a limiting post-amplifier IC. The SO-SFP-1000BASE-ZXD series are designed to be compliant with SFF-8472 SFP
Multi-Source Agreement (MSA).
PRODUCT FEATURES

Operating data rate up to 1.25Gbps

1550nm DFB laser transmitter

80km with 9/125 µm SMF

Single 3.3V power supply and LVTTL logic interface

Hot-Pluggable SFP footprint duplex LC connector interface

Class 1 FDA and IEC60825-1 laser safety compliant

Operating temperature
Standard: 0 ℃~+70 ℃
Industrial: -40 ℃~+85 ℃

Compliant with MSA SFP specification

Compliant with SFF-8472

RoHS 6/6 compliant
APPLICATIONS

Gigabit Ethernet switches and routers

Fibre Channel switch infrastructure

Other optical links
ORDERING INFORMATION
Part Number
Description
SO-SFP-1000BASE-ZXD
SFP, 1.25 Gbps GigE, 1550nm, SM/MM, DDM, 24dB, 80km
SO-SFP-1000BASE-ZXD-I
SFP, 1.25 Gbps GigE, 1550nm, SM/MM, DDM, 24dB, 80km, ind. temp.
Subject to change without notice.
For more information, visit smartoptics.com.
DATASHEET
4.3
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Min
Max
Unit
Storage Temperature
TS
-40
+85
°C
Supply Voltage
VCC
-0.5
3.6
V
95
%
Operating Relative Humidity
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Case Operating Temperature
Min
Typ
Max
SO-SFP-1000BASE-ZXD
0
+70
SO-SFP-1000BASE-ZXD-I
-40
+85
Unit
Tc
°C
Power Supply Voltage
Vcc
Power Supply Current
Icc
Data rate
3.15
3.3
GBE
1.25
FC
1.063
3.45
V
300
mA
Gbps
PERFORMANCE SPECIFICATIONS – ELECTRICAL TRANSMITTER
Parameter
Symbol
Min
LVPECL Inputs(Differential)
VIN
500
Input Impedance (Differential)
ZIN
85
TX Disable
TX FAULT
Typ
100
Max
Unit
Notes
2400
mVpp
AC coupled inputs
115
ohm
Rin > 100 kohms @ DC
V
Disable
2
Vcc
Enable
0
0.8
Fault
2
Vcc+0.3
Normal
0
0.5
V
PERFORMANCE SPECIFICATIONS – ELECTRICAL RECEIVER
Parameter
Symbol
Min
LVPECL Outputs (Differential)
Vout
370
Output Impedance (Differential)
Zout
85
Typ
100
Max
Unit
Notes
2000
mVpp
AC coupled outputs
115
ohms
Rx_LOS Output Voltage – High
2
Vcc+0.3
V
Rx_LOS Output Voltage – Low
0
0.8
V
VoH
2.5
VoL
0
V
MOD_DEF ( 2:0 )
Subject to change without notice.
For more information, visit smartoptics.com.
With Serial ID
0.5
V
DATASHEET
4.3
OPTICAL AND ELECTRICAL CHARACTERISTICS
Parameter
Symbol
9µm Core Diameter MMF
L
Min
Data Rate
Typ
Max
Unit
80
km
1.063/1.25
Gbps
OPTICAL AND ELECTRICAL CHARACTERISTICS TRANSMITTER
Parameter
Symbol
Min
Typ
Max
Unit
Centre Wavelength
Λc
1500
1550
1580
nm
Spectral Width (RMS))
∆λ
1
nm
Side Mode Suppression Ratio
SMSR
30
Average Output Power
Pout
0
Extinction Ratio
ER
9
Rise/Fall Time(20%~80%)
tr/tf
0.26
ns
Total Jitter
TJ
0.43
UI
Output Optical Eye
dB
5
dBm
dB
Compliant with IEEE 802.3ah-2004
TX Disable Assert Time
t_off
10
us
Pout@TX Disable Asserted
Pout
-45
dBm
Max
Unit
1600
nm
-24
dBm
OPTICAL AND ELECTRICAL CHARACTERISTICS RECEIVER
Parameter
Symbol
Min
Centre Wavelength
Λ
1260
Receiver Sensitivity
Pmin
Receiver Overload
Pmax
Return Loss
-3
dBm
12
dB
Optical Path Penalty
LOS De-Assert
LOSD
LOS Assert
LOSA
LOS Hysteresis
Subject to change without notice.
For more information, visit smartoptics.com.
Typ
1
dB
-25
dBm
-38
dBm
0.5
dB
DATASHEET
4.3
RECOMMENDED CIRCUIT SCHEMATIC
VeeT
(1 ,1 7,2 0)
Tx_DISABLE
3
Tx_FAULT
2
Tx_ DISABLE
Tx_ FAULT
4 .7K to 10KΩ
LD
Driver
TD +
18
TD -
19
TD +
Z=50Ω
10 0Ω
TD Z=50Ω
Vc cT
1μ H
16
Vcc 3.3V
1 0μ F
10nF
10μ F
10 nF
1 μH
VccR
1 0μ F
10nF
RD -
SerDes
IC
15
12
Protocol
IC
RD Z=50Ω
10 0Ω
POST
Amp
RD +
13
RD +
Z=50Ω
depending on SERDES
4.7K to 10KΩ
LOS
8
LOSS OF SINGAL
Ve eR (9,10 ,11 ,1 4)
6
MOD_DEF(0)
EEPROM
MOD_DEF(1)
MOD_DEF(2)
MODULE DETECT
5
SCL
4
SFP module
SDA
4.7K to 10 KΩ
4.7K to 10KΩ
Vcc 3.3V
4.7 K to 10KΩ
PIN FUNCTION DEFINITIONS
PIN
Signal Name
Description
PIN
Signal Name Description
1
VEET
Transmitter Signal Ground
11
VEER
Receiver Signal Ground
2
TX_Fault
Transmitter Fault Indication. Logic “1” Output = Laser Fault. Logic 12
RD-
Inverse Receiver Data Out
13
RD+
Receiver Data Out
“0” Output = Normal Operation
3
TX_Disable
Logic “1” Input (or no connection) = Laser off, Logic “0” = Laser
on.
4
SDA
Modulation Definition 2 – Two wires serial ID Interface
14
VEER
Receiver Signal Ground
5
SDL
Modulation Definition 1 – Two wires serial ID Interface
15
VCCR
Receiver Power – 3.3V±5%
6
MOD-ABS
Modulation Definition 0 – Ground in Module
16
VCCT
Transmitter Power – 3.3V±5%
7
RS0
RX Rate Select (LVTTL). This pin has an internal 30k pulldown to 17
VEET
Transmitter Signal Ground
ground. A signal on this pin will not affect module performance.
8
RX_LOS
Loss of Signal Out (OC).
18
TD+
Transmitter Data In
9
RS1
TX Rate Select (LVTTL). This pin has an internal 30k pulldown to 19
TD-
Inverse Transmitter Data In
VEET
Transmitter Signal Ground
ground. A signal on this pin will not affect module performance.
10
VEER
Receiver Signal Ground
Subject to change without notice.
For more information, visit smartoptics.com.
20
DATASHEET
4.3
+0. 10
0
8. 45
2. 17
1 ± 0. 10
2. 25 ± 0. 10
C
2. 5
1. 87
11. 85
0. 55
MECHANICAL DRAWING
6. 25 ± 0. 05
41. 8 ± 0. 15
2. 5 ± 0. 05
4. 8
6
9. 6
4
17
10
30
Subject to change without notice.
For more information, visit smartoptics.com.
0
- 0. 10
13. 4 ± 0. 05
14. 81
13. 9
0. 65
45 ± 0. 10
13. 7
9
9. 2 ± 0. 10
57. 4