OC-48 LR-1/STM L-16.1 RoHS Compliant
Pluggable SFP Transceiver
AP-S31254-3CDL40
Product Features
z
Up to 2.67Gb/s dual data links
z
Hot-pluggable SFP footprint
z
Built-in digital diagnostic functions(DMI)
z
Uncooled 1310nm DFB laser transmitter
z
APD Receiver
z
Duplex LC connector
z
RoHs compliant and lead-free
z
Metal enclosure for lower EMI
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Single 3.3V power supply
z
Low power dissipation <700mW
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SONET OC-48 LR-1/SDH STM L-16.1
z
Commercial operating temperature range: 0°C
to 70°C
z
SONET OC-12 /SDH STM-4
z
SONET OC-3 /SDH STM-1
z
Gigabit Ethernet/ 1x/2x Fibre Channel
Applications
General
ATOP’s AP-S31254-3CDL40 Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form
Factor Pluggable Multi-Sourcing Agreement (MSA). They comply with SONET OC-48 LR-1 (SDH STM L-16.1)
Standards, Gigabit Ethernet as specified in IEEE Standards 802.3 and Fibre Channel FC-PI 13.0. They are
compatible with SONET OC-12 and SONET OC-3 standards. Digital diagnostics functions are available via the 2-wire
serial bus specified in the SFP MSA. They are RoHS compliant and lead-free.
Product Selection
AP-S31254-3CDL40
D
ATOP www.atoptechnology.com
DMI Built-in
Page 1
I.
Pin Descriptions
Pin
Symbol
Name/Description
Transmitter Ground
Ref.
1
VeeT
2
TX Fault
Transmitter Fault. Not supported.
(Common with Receiver Ground)
3
TX Disable
Transmitter Disable. Laser output disabled on high or open.
2
4
MOD_DEF(2)
Module Definition 2. Data line for Serial ID.
3
5
MOD_DEF(1)
Module Definition 1. Clock line for Serial ID.
3
6
MOD_DEF(0)
Module Definition 0. Grounded within the module.
3
7
Rate Select
No connection required
8
LOS
Loss of Signal indication. Logic 0 indicates normal operation.
4
9
VeeR
Receiver Ground (Common with Transmitter Ground)
1
10
VeeR
Receiver Ground (Common with Transmitter Ground)
1
11
VeeR
Receiver Ground (Common with Transmitter Ground)
1
12
RD-
Receiver Inverted DATA out.
13
RD+
Receiver Non-inverted DATA out.
14
VeeR
15
VccR
Receiver Power Supply
16
VccT
Transmitter Power Supply
17
VeeT
Transmitter Ground (Common with Receiver Ground)
18
TD+
Transmitter Non-Inverted DATA in. AC Coupled.
19
TD-
Transmitter Inverted DATA in. AC Coupled.
20
VeeT
Transmitter Ground (Common with Receiver Ground)
1
AC Coupled
AC Coupled
Receiver Ground (Common with Transmitter Ground)
1
1
1
Notes:
1.
2.
3.
Circuit ground is internally isolated from chassis ground.
Laser output disabled on TX Disable >2.0V or open, enabled on TX Disable<0.8V.
Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V.
MOD_DEF(0) pulls line low to indicate module is plugged in.
4. LOS is LVTTL output. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and
3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
Pinout of Connector Block on Host Board
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Page 2
II.
Absolute Maximum Ratings
III.
Parameter
Symbol
Min
Typ
Max
Unit
Maximum Supply Voltage
Vcc
-0.5
4.0
V
Storage Temperature
TS
-40
100
°C
Case Operating Temperature
TOP
0
70
°C
Relative Humidity
RH
0
85
%
Ref.
Electrical Characteristics (TOP=25°C, Vcc=3.3Volts)
Parameter
Symbol
Min
Supply Voltage
Vcc
3.00
Supply Current
Icc
Typ
230
Max
Unit
3.60
V
300
mA
1200
mV
Ref.
Transmitter
Input differential impedance
Rin
Single ended data input swing
Vin, pp
250
100
Ω
Transmit Disable Voltage
VD
Vcc – 1.3
Vcc
V
Transmit Enable Voltage
VEN
Vee
Vee+ 0.8
V
10
us
400
800
mV
3
Transmit Disable Assert Time
1
2
Receiver
Single ended data output swing
Vout, pp
300
Data output rise time
tr
100
175
ps
4
Data output fall time
tf
100
175
ps
4
LOS Fault
VLOS fault
Vcc – 0.5
VccHOST
V
5
LOS Normal
Total Generated Receiver Jitter (peak to
peak)
VLOS norm
Vee
Vee+0.5
V
5
JRXp-p
0.07
UI
Total Generated Receiver Jitter (rms)
JRXrms
0.007
UI
Notes:
1.
2.
3.
4.
5.
IV.
AC coupled.
Or Open circuit.
Into 100 ohm differential termination
10 – 90 %.
LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
Optical Characteristics (TOP=25°C, Vcc=3.3 Volts)
Parameter
Symbol
Min
PO
Optical Wavelength
λ
Spectral Width
σ
Optical Modulation Amplitude
OMA
Optical Rise/Fall Time
tr/tf
Deterministic Jitter Contribution
TXΔDJ
Total Jitter Contribution
TXΔTJ
Typ
Max
Unit
Ref.
-2
+3
dBm
1
1280
1335
nm
3
1
nm
Transmitter
Output Opt. Power
ATOP www.atoptechnology.com
174
μW
2,3
160
ps
4
20
56.5
ps
50
119
ps
Page 3
Optical Extinction Ratio
ER
9
dB
Average Rx Sensitivity @ 2.67 Gb/s
RSENS1
-9
-27
dBm
4
Receiver
Average Rx Sensitivity @ OC-48
RSENS1
-9
-27
dBm
4
Average Rx Sensitivity @ 2X Fibre Channel
RSENS2
-9
-28
dBm
5
Average Rx Sensitivity @ Gigabit Ethernet
RSENS3
-9
-30
dBm
5
Average Rx Sensitivity @ OC-12
Average Rx Sensitivity @ OC- 3
RSENS4
RSENS5
-9
-15
-32
-34
dBm
dBm
6
6
Optical Center Wavelength
λC
1270
1600
nm
LOS De-Assert
LOSD
-28
dBm
LOS Assert
LOSA
LOS Hysteresis
-41
dBm
0.5
dB
Notes:
1.
2.
3.
Class 1 Laser Safety per FDA/CDRH and EN (IEC) 60825 regulations.
Also specified to meet curves in FC-PI-13.0 Figure 18 and 19, which allow trade-off between wavelength,
spectral width and OMA.
Unfiltered.
31
4.
With worst-casr extinction ratio. Measured with a PRBS 2 -1 test pattern interspersed with 72 consecutive ones
and 72 consecutive zeros.
5.
With worst-case extinction ratio. Measured with a PRBS 2 -1 test pattern.
6.
With worst-case extinction ration. Measured with a PRBS 2 -1 test pattern
V.
General Specifications
7
23
Parameter
Symbol
Min
155
Typ
Max
Units
Ref.
2667
Mb/sec
1
Data Rate
BR
Bit Error Rate
BER
Max. Supported Link Length on
9/125μm SMF @ OC-48
LMAX1
45
km
3
Max. Supported Link Length on
9/125μm SMF @ 2X Fibre Channel
LMAX2
47
km
3
LMAX3
50
km
3
LMAX4
50
km
3
LMAX5
50
km
3
Max. Supported Link Length on
9/125μm SMF @ Gigabit Ethernet
Max. Supported Link Length on
9/125μm SMF @ OC-12
Max. Supported Link Length on
9/125μm SMF @ OC-3
10
-12
2
Notes:
1.
SONET OC-48 LR-1/SDH STM L-16.1,Gigabit Ethernet and 1x/2x Fibre Channel compliant, Compatible with
SONET OC-12 and OC-3. Supports FEC at 2.67 Gb/s.
2.
3.
Tested with a PRBS 2 -1 test pattern interspersed with 72 consecutive ones and 72 consecutive zeros.
Attenuation of 0. 55 dB/km is used for the link length calculations. Distances are indicative only. Please refer to
the Optical Specifications in Table IV to calculate a more accurate link budget based on specific conditions in
your application.
VI.
31
Environmental Specifications
ATOP 1310nm Commercial Temperature SFP transceivers have an operating temperature
range from 0°C to +70°C case temperature.
Parameter
Symbol
Min
Case Operating Temperature
Top
0
ATOP www.atoptechnology.com
Typ
Max
Units
70
°C
Ref.
Page 4
Storage Temperature
Tsto
-40
100
°C
VII.
Ⅶ.Digital Diagnostic Functions
ATOP AP-S31254-3CDL40 SFP transceivers support the 2-wire serial communication protocol as defined in the SFP
MSA1. It is very closely related to the E2PROM defined in the GBIC standard, with the same electrical specifications.
The standard SFP serial ID provides access to identification information that describes the transceiver’s capabilities,
standard interfaces, manufacturer, and other information. Additionally, ATOP SFP transceivers provide a unique
enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such
as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver
supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when
particular operating parameters are outside of a factory-set normal range. The SFP MSA defines a 256-byte memory
map in E2PROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h). The digital
diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID
memory map remains unchanged. The interface is identical to, and is thus fully backward compatible with both the
GBIC Specification and the SFP Multi Source Agreement. The complete interface is described as Digital Diagnostics
Monitoring Interface for SFP Optical Transceivers.The operating and diagnostics information is monitored and
reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a
2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by
the host. The positive edge clocks data into the SFP transceiver into those segments of the E2PROM that are not
write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is
bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial
protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or
sequentially. For more information, please see the SFP MSA documentation1. Digital diagnostics for the
AP-S31254-3CDL40 are externally calibrated by default.
VII.
Mechanical Specifications
ATOP’s Small Form Factor Pluggable (SFP) transceivers are compatible with the
dimensions defined by the SFP Multi-Sourcing Agreement (MSA).
.
AP-S31254-3CDL40
ATOP www.atoptechnology.com
Page 5
IX.
PCB Layout and Bezel Recommendations
ATOP www.atoptechnology.com
Page 6
X.
For More Information
ATOP Technology co., ltd
5/F, No.1 Building, Yuanzheng industrial park, North of Wuhe Av.
Longgang District, Shenzhen, China.
Tel: +86-755-83461686 83461606 83461605
Fax: +86-755-83461640
Email: sales@atoptechnology.com
Web: www.atoptechnology.com
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Page 7