XSB341-20xx 1.25Gbps SFP Bi-Directional Transceiver, 20km Reach

XSB341-20xx 1.25Gbps SFP Bi-Directional Transceiver, 20km Reach
Features
o Dual data-rate of
1.25Gbps/1.063Gbps
operation
o 1310nm FP laser and
PIN photodetector for
20km transmission
o Compliant with SFP
MSA and SFF-8472
with simplex LC
receptacle
o Digital Diagnostic
Monitoring:
Internal Calibration or
External Calibration
o Compatible with
SONET OC-24-LR-1
o Compatible with RoHS
o +3.3V single power
supply
o Operating case
temperature:
Standard : 0 to +70°C
Industrial : -40 to
+85°C
XSB341-20xx
1.25Gbps SFP Bi-Directional
Transceiver, 20km Reach
1310nm TX/1490 nm RX
Applications
o Gigabit Ethernet
o Fiber Channel
o Switch to Switch interface
o Switched backplane applications
o Router/Server interface
Description
The SFP-BIDI transceivers are high performance, cost
effective
modules
supporting
dual
data-rate
of
1.25Gbps/1.0625Gbps and 20km transmission distance with
SMF.
The transceiver consists of three sections: a FP laser
transmitter, a PIN photodiode integrated with a transimpedance preamplifier (TIA) and MCU control unit. All
modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472.
For further information, please refer to SFP MSA.
TD+/TxFault
LD Driver
LD
Post
PIN+TIA
TxDis
LOS
Vcc
EEPROM
MCU
ADC/DAC
RD+/-
Absolute Maximum Ratings
Table 1 - Absolute Maximum Ratings
Parameter
Symbol
Min
Max
Unit
Supply Voltage
Vcc
-0.5
4.5
V
Storage Temperature
Ts
-40
+85
°C
Operating Humidity
-
5
85
%
Recommended Operating Conditions
Table 2 - Recommended Operating Conditions
Parameter
Symbol
Operating Case Temperature
Standard
Industrial
Tc
Power Supply Voltage
Vcc
Power Supply Current
Icc
Min
Max
Unit
0
+70
°C
-40
+85
°C
3.47
V
300
mA
3.13
Typical
3.3
Gigabit Ethernet
1.25
Fiber Channel
1.063
Data Rate
Gbps
Optical and Electrical Characteristics
XSB341-20xx: (FP and PIN, 1310nm, 20km Reach)
Table 3 - Optical and Electrical Characteristics
Parameter
Symbol
Min
Typical
Max
Unit
1310
1360
nm
4
nm
-3
dBm
Notes
Transmitter
Centre Wavelength
λc
Spectral Width (RMS)
∆λ
Average Output Power
Pout
-9
Extinction Ratio
ER
9
Optical Rise/Fall Time (20%~80%)
tr/tf
Data Input Swing Differential
VIN
400
Input Differential Impedance
ZIN
90
1260
1
dB
100
0.26
ns
1800
mV
110
Ω
2
Disable
2.0
Vcc
V
Enable
0
0.8
V
Fault
2.0
Vcc
V
Normal
0
0.8
V
1510
nm
-23
dBm
3
dBm
3
TX Disable
TX Fault
Receiver
Centre Wavelength
λc
1470
Receiver Sensitivity
Receiver Overload
-3
LOS De-Assert
LOSD
LOS Assert
LOSA
LOS Hysteresis
Data Output Swing Differential
-24
-30
dBm
dBm
1
4
dB
Vout
400
1800
mV
High
2.0
Vcc
V
0.8
V
LOS
Low
Notes:
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 27-1 test pattern @1250Mbps, BER ≤1×10-12.
4. Internally AC-coupled.
4
Timing and Electrical
Table 4 - Timing and Electrical
Parameter
Symbol
Min
Typical
Max
Unit
Tx Disable Negate Time
t_on
1
ms
Tx Disable Assert Time
t_off
10
µs
Time To Initialize, including Reset of Tx Fault
t_init
300
ms
Tx Fault Assert Time
t_fault
100
µs
Tx Disable To Reset
t_reset
µs
10
LOS Assert Time
t_loss_on
100
µs
LOS De-assert Time
t_loss_off
100
µs
Serial ID Clock Rate
f_serial_clock
400
KHz
Vcc
V
0.8
V
MOD_DEF (0:2)-High
VH
MOD_DEF (0:2)-Low
VL
2
Diagnostics
Table 5 – Diagnostics Specification
Parameter
Range
Unit
Accuracy
Calibration
Temperature
0 to +70
°C
±3°C
Internal / External
Voltage
3.0 to 3.6
V
±3%
Internal / External
Bias Current
0 to 100
mA
±10%
Internal / External
TX Power
-9 to -3
dBm
±3dB
Internal / External
RX Power
-23 to -3
dBm
±3dB
Internal / External
Digital Diagnostic Memory Map
The transceivers provide serial ID memory contents and diagnostic information about the
present operating conditions by the 2-wire serial interface (SCL, SDA).
The diagnostic information with internal calibration or external calibration all are
implemented, including received power monitoring, transmitted power monitoring, bias
current monitoring, supply voltage monitoring and temperature monitoring.
The digital diagnostic memory map specific data field defines as following.
Pin Definitions
Pin Diagram
Pin Descriptions
Pin
Signal Name
Description
Plug Seq.
Notes
1
VEET
Transmitter Ground
1
2
TX FAULT
Transmitter Fault Indication
3
Note 1
3
TX DISABLE
Transmitter Disable
3
Note 2
4
MOD_DEF(2)
SDA Serial Data Signal
3
Note 3
5
MOD_DEF(1)
SCL Serial Clock Signal
3
Note 3
6
MOD_DEF(0)
TTL Low
3
Note 3
7
Rate Select
Not Connected
3
8
LOS
Loss of Signal
3
9
VEER
Receiver ground
1
Note 4
10
VEER
Receiver ground
1
11
VEER
Receiver ground
1
12
RD-
Inv. Received Data Out
3
Note 5
13
RD+
Received Data Out
3
Note 5
14
VEER
Receiver ground
1
15
VCCR
Receiver Power Supply
2
16
VCCT
Transmitter Power Supply
2
17
VEET
Transmitter Ground
1
18
TD+
Transmit Data In
3
Note 6
19
TD-
Inv. Transmit Data In
3
Note 6
20
VEET
Transmitter Ground
1
Notes:
Plug Seq.: Pin engagement sequence during hot plugging.
1) TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to
a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser fault of
some kind. In the low state, the output will be pulled to less than 0.8V.
2) TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module
with a 4.7k~10kΩ resistor. Its states are:
Low (0 to 0.8V):
Transmitter on
(>0.8V, < 2.0V):
Undefined
High (2.0 to 3.465V):
Transmitter Disabled
Open:
Transmitter Disabled
3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7k~10kΩ resistor 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
4) LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor. Pull up voltage between
2.0V and Vcc+0.3V. Logic 1 indicates loss of signal; Logic 0 indicates normal operation. In the low state, the
output will be pulled to less than 0.8V.
5) RD-/+: These are the differential receiver outputs. They are internally AC-coupled 100 differential lines which
should be terminated with 100Ω (differential) at the user SERDES.
6) TD-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines with 100Ω
differential termination inside the module.
Recommended Interface Circuit
Mechanical Dimensions
Ordering information
Part Number Product Description
XSB341-20SN
XSB341-20SY
XSB341-20LN
XSB341-20LY
XSB341-20SL
XSB341-20SM
XSB341-20LL
XSB341-20LM
1310nm, 1.25Gbps, SC,20km,
1310nm, 1.25Gbps, SC,20km,
1310nm, 1.25Gbps, LC,20km,
1310nm, 1.25Gbps, LC,20km,
1310nm, 1.25Gbps, SC,20km,
1310nm, 1.25Gbps, SC,20km,
1310nm, 1.25Gbps, LC,20km,
1310nm, 1.25Gbps, LC,20km,
E-mail: [email protected]
Web: www.xenya.si
XSB341-20xx-140822171900
0°C~+70°C
0°C~+70°C, With Digital Diagnostic Monitoring
0°C~+70°C
0°C~+70°C, With Digital Diagnostic Monitoring
-40 to +85°C
-40 to +85°C, With Digital Diagnostic Monitoring
-40 to +85°C
-40 to +85°C, With Digital Diagnostic Monitoring
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement