Transcript
1.25Gb/s SFP transceiver with DDM function
Features
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Applications
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Standards
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Value
Unit
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Symbol
Min
Notes typical
Max
-
-
300
300 2.0 0 2.0 0
-
1100 600 Vcc 0.8 Vcc 0.8
Electrical Characteristics
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Tx Section
Icc
Rx Section
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Supply Current
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Single Ended Data Input Swing Single Ended Data Output Swing TX_fault /LOS output(TTL)
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Parameter
TX_disable input（TTL）
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Gigabit Ethernet Gigabit Fiber Channel Switch to switch interface Switched backplane
(Tested under recommended operating conditions, unless otherwise noted)
-
VOH VOL VOH VOL
mA mA mV V V
1
Optical transmitter Characteristics
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Specifications
Po dBm -2 0 +3 Launch Optical Power（EOL） Center Wavelength Range nm 1500 1550 1580 λc Extinction Ratio EX dB 9 Spectral Width (-20dB) nm 1 ∆λ Total transmitter Jitter TJ UI 0.284 2 Relative Intensity Noise RIN dB/H z -120 3 Eye Diagram Complies with IEEE802.3z eye masks when filtered Dispersion penalty dB 2 Optical Rise/Fall Time T rise /T fall ps 260 4 P out of OFF transmitter P off dBm -45 Optical receiver Characteristics
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1550nm DFB laser transmitter Up to 1.25Gbps data rate Duplex LC receptacle optical interface compliant Single +3.3V power supply DDM function implemented Hot-pluggable Receiver Loss of Signal Output Serial ID module on MOD(0-2) International Class 1 laser safety certified Transmitter disable input Operating temperature range: -40oC ~ +85oC 80km on 9/125um SMF Compliant with RoHS
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RTXM191-507 1.25Gb/s SFP transceivers are designed for Gigabit Ethernet applications, The product is an integrated module containing an automatic optical output power control circuit, a laser driver and a laser diode, a PIN photo-detector for optic converting to electrical current, a limiting amplifier, an EEPROM to provide remote Inventory by serial interface. The module could implement optical to electrical and electrical to optical conversion function in optical communication.
Compliant with SFP MSA (INF-8074i) Compliant with SFF-8472 v9.5 Compliant with IEEE802.3z Gigabit Ethernet Compliant with FC-PI v2.0
Center Wavelength Range
λc
nm
Receiver Sensitivity Overload Input Optical Power Optical De-assert LOS Optical Assert LOS Hysteresis
S Pin
dBm dBm dBm dBm dB
1250
1620 -
-23
5
-3 -23 -35 0.5
3
5
6
Note1. The supply current includes SFP module’s supply current and test board working current. Note2: TP2 refers to the compliance point specified in IEEE802.3z, section 38.2.1. Note3: RIN is the laser noise, integrated over a specified bandwidth, measured relative to average optical power with 12dB return loss. For multimode application, the RIN is better than -117dB/Hz. Note4: Optical transition time is the time interval required for the rising or falling edge of an optical pulse to transition between the 20% and 80% amplitudes relative to the logical 1 and 0 levels Note5: Measured with a PRBS 223-1 test pattern, @1.25Gb/s, EX=10dB, BER<10-12. Note6: The LOS Hysteresis to minimize “chatter” on the output line. In principle, Hysteresis alone does not guarantee chatter-free operation.
1.25Gb/s SFP transceiver with DDM function Ordering Information Specifications Package Data rate
RTXM191-507
SFP
1.25G
Optical
Laser 1550nm DFB
Power
Detector Sensitivity Top
-2 ~ 3dBm
PIN
<-23dBm
-40~85
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Principle diagram
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Min -40 5 -0.5
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Unit Min oC -40 V 3.135 Gbps -
lo
Symbol Tc Vcc
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Parameter Case Operating Temperature Range Power Supply Voltage Data rate
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Recommended Operating Conditions
Unit oC % V
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Symbol Ts RH Vcc
80km
oC
Absolute Maximum Ratings Parameter Storage Temperature Range Relative Humidity Power Supply Voltage
Reach Others DDM, RoHS
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Part No
Typ 3.3 1.25/1.0625
Max +85 95 +4
Max 85 3.465 -
1.25Gb/s SFP transceiver with DDM function
VeeT
1
VeeT
19
TD-
2
Tx_Fault
18
TD+
3
Tx_disable
17
VeeT
4
MOD-DEF(2)
16
VccT
5
MOD-DEF(1)
15
VccR
6
MOD-DEF(0)
14
VeeR
7
Rate Select
13
RD+
8
LOS
12
RD-
9
VeeR
11
VeeR
10
VeeR
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20
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Electric Ports Definition
Bottom of Board
lo
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Top of Board
ch
no
As Viewed Through Top of Board
Name
Function/Description
1 2
VeeT TX Fault
3
TX Disable
4
MOD-DEF2
5
MOD-DEF1
6
MOD-DEF0
7 8 9 10 11 12 13 14 15 16 17
Rate Select LOS VeeR VeeR Veer RDRD+ VeeR VccR VccT VeeT
Transmitter Ground Transmitter Fault Indication Transmitter Disable-Module disables on high or open Module Definition 2-Two wire serial ID interface Module Definition 1-Two wire serial ID interface Module Definition 0-Two wire serial ID interface Not Connected Loss of Signal Receiver Ground Receiver Ground Receiver Ground Inverse Received Data out Received Data out Receiver Ground Receiver Power —— +3.3V±5% Transmitter Power —— +3.3 V±5% Transmitter Ground
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Pin
Engagement order 1 3
Notes 1
3
2
3
3
3
3
3
3
3 3 1 1 1 3 3 1 2 2 1
4
5 5 6 6
1.25Gb/s SFP transceiver with DDM function
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18 TD+ Transmitter Data In 3 7 19 TDInverse Transmitter Data In 3 7 20 VeeT Transmitter Ground 1 Note1. TX Fault is open collector/drain output which should be pulled up externally with a 4.7K – 10KΩresistor on the host board to supply 1.5kV) – Human Body Model
1.25Gb/s SFP transceiver with DDM function LV 4(Air discharge :15KV; Contact discharge:8KV) Performance criterion:B
Electrostatic Discharge IEC61000-4-2 (ESD) Immunity
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IEC61000-4-3 Class 2
Typically show no measurable effect from a 3 V/m field swept from 80 to 1000MHz applied to the transceiver without a chassis enclosure. Class 1 Laser product
EN/IEC 60825-1 EN/IEC 60825-2 EN/IEC 60950-1
Class 1 Laser product
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CDRH21-CFR 1040
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Immunity
Compliant with standard
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Electromagnetic Interference (EMI)
CISPR22 ITE Class B FCC Class B CENELEC EN55022 VCCI Class 1
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Accelink-WTD reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. Edition 2013-7-2 Published by Wuhan Telecommunication Devices Co.,Ltd. Copyright © Accelink-WTD All Rights Reserved.
