SFX-34-24T-HP-XDFH
1310/1490 Integrated Diplexer
Transceiver
Features
• Single Fiber, Integrated Diplexer Transceiver
• 2x10 SFF pinout supports I2C digital diagnostics
• Voice/Data FTTx ONT/ONU Applications
• Compliant to FSAN G.984.5 Specifications
• 1244 Mbps Tx, 2488 Mbps Rx Asymmetric Data Rate
• 1310 nm Tx, 1490 nm Rx
• Burst Mode Transmission
• TX Burst Mode Detection, TX_SD
• DDM TX Power
• 28 dB link budget; 20 km reach
• Compliant to IEC-60825 Class 1 laser diode
• SC/APC or SC/UPC fiber connector
• RoHS compliant
• Internal Calibration
- Digital Transmitter:
A DFB laser diode is employed for upstream transmission at OC-24 (1244Mbps). The optical transmitter includes a back facet
photodetector to monitor laser power for UPC control.
- Digital Receiver:
An APD with TIA is employed for downstream data reception at OC-48 (2488Mbps). A post amplifier is also included for CML
output compatibility.
Lim
.
Amp
.
Rx Data
TIA
Rx
Section
1490 nm APD
Receiver
1310nm Upstream
1490nm Downstream
WDM
LDD
Tx Data
Diplexer
Optical
Block
1310 nm
Laser
Tx
Section
Diplexer Block Diagram
DS-6053 Rev 05 2010-11-09
SFX-34-24T-HP-XDFH
Absolute Maximum Ratings
Usage of this transceiver shall adhere to the following absolute maximum ratings. Stresses beyond those in Table 1 may cause permanent damage to
the unit.
These are stress ratings only, and functional operation of the unit at these or any other conditions beyond those indicated in the operational
Exposure to absolute maximum rating conditions for extended periods may affect unit reliability.
sections of the specifications is not implied.
Table 1 - Absolute Maximum Ratings
Parameter
Ambient Storage Temperature
Operating Temperature*
Operating Humidity Range
ESD Sensitivity (Human Body Model)
Lead Soldering Temperature
Vcc_Rx
Vcc_Tx
*Operating temp: minimum is ambient, maximum is case.
Minimum
-40
0
-40
10%
-
-
-0.4
-0.4
Maximum
85
70
85
90%
1000
260ºC
+4.2
Vcc_Rx + 1
ºC
ºC, C-Temp
ºC, I-Temp
non-condensing
V
Maximum 10 sec
V
V
Unit/Conditions
Module Characteristics
Table 2 - Module Characteristics
Parameter
1310nm Tx to 1490nm Rx Crosstalk
1555nm Rx to 1490nm Isolation
Minimum
-
30
7
G.984.5 Wavelength Blocking Filter (WBF), X/S
7
22
22
Temperature Monitoring Accuracy
Voltage Monitoring Accuracy
Bias Current Monitoring Accuracy
Total TX and RX Supply Current
-3
-3
-10
-
Typical
-
-
-
-
-
-
-
-
-
-
Maximum
-47
-
-
-
-
-
+3
+3
+10
350
dB
dB
dB, 1441 nm to 1450 nm
dB, 1530 nm to 1539 nm
dB, 1400 nm to 1441 nm
dB, 1539 nm to 1625 nm
°C
%
%
mA
Unit/Conditions
DS-6053 Rev 05 2010-11-09
SFX-34-24T-HP-XDFH
Functional Characteristics
The following tables list the performance specifications for the various functional blocks of the integrated optical transceiver module.
Table 3 – Digital Transmitter Specifications
Parameter
Operating Voltage
Data Rate
Average Optical Output Power, Po
Output Power at Transmit Off
Extinction Ratio
Transmitter Output Eye
Optical Rise and Fall Time
Center Wavelength
Differential Input Voltage
Input Impedance, differential
Common-Mode Input Voltage
Tx Burst Enable Time
Tx Burst Disable Time
Jitter Generation
TX_BEN Input Low
TX_BEN Input High
TX_SD timing “D”
TX_SD timing “X”
Ttx-sd_startup
-
1290
300
-
GND_Tx +
1.4
-
-
-
0
2.0
-
100
-
-
-
-
Minimum
3.14
-
0.5
-
10
Typical
3.30
1244.16
-
-
-
G.984.2 Figure 3
250
-
1330
1800
-
Vcc - (V
in
/2) -
0.1
12.8
12.8
0.2
0.8
Vcc_RX
1
100
3
ps
nm
mVp-p
Ω
V
ns
ns
UI
V
V
µs
ns
S
See figure 3
See figure 3
See Figure 4
Internally DC coupled
16 bits data @ 1244Mbps
16 bits data @ 1244Mbps
4 kHz to 10 MHz
TXD+/-. Internally DC-coupled
20% to 80%
Maximum
3.46
-
5
-50
-
Unit
V
Mbps
dBm
dBm
dB
PRBS 2 -1, NRZ, 50% duty cycle
23
Notes
Vcc referenced to GND_Tx
DS-6053 Rev 05 2010-11-09
SFX-34-24T-HP-XDFH
Refer to Figure 1 which schematically describes the timing parameter definition in burst mode sequence.
Figure 1 - Timing Parameter Definition in Burst Mode Sequence
Table 4 – Digital Receiver Specifications
Parameter
Operating Voltage
Data Rate
Operational Wavelength Range
Received Optical Power
Data Output Rise and Fall Time
Signal Detect Assertion Level
Signal Detect De-Assertion Level
Signal Detect Hysteresis
Differential Output Voltage
Minimum
3.14
-
1480
-28
-
-
-45
0.5
300
Typical
3.30
2488.32
-
-
160
-
-
-
-
Maximum
3.46
-
1500
-8
-
-31
-
6
1200
Unit
V
Mbps
nm
dBm
ps
dBm
dBm
dB
mV
CML output, ac coupled
BER≤10 , PRBS 2 -1, 50% duty cycle
20% to 80%
Transition during increasing light
Transition during decreasing light
-10
23
Notes
Vcc referenced to GND_RX
DS-6053 Rev 05 2010-11-09
SFX-34-24T-HP-XDFH
Parameter
Minimum
Typical
Maximum
Unit
Notes
LVTTL with internal pull up resistor,
Signal Detect Output HIGH Voltage
2.4
-
-
V
I
OH
=400µA. Asserts HIGH when input data
amplitude is above threshold.
Signal Detect Output LOW Voltage
RSSI Range
RSSI Accuracy
-
-28
-3
-
-
-
0.6
-8
+3
V
dBm
dB
LVTTL. I
OL
=4mA De-asserts LOW when input
data amplitude is below threshold .
Table 5 - Microcontroller Specifications
Parameter
Operating Voltage
SDA
SCL
Reset hold
Module temperature
accuracy
VCC monitor accuracy
a
Minimum
3.14
-
-
30
-3
-0.1
Typical
3.30
-
-
-
-
-
Maximum
3.46
-
-
-
+3
+0.1
Unit
V
-
-
ms
°C
V
Notes
LVTTL, open collector serial data line from the I C
bus to the on board Microcontroller. 100kbps max.
data rate.
2
LVTTL, open collector serial clock line from the I C
bus to the on board Microcontroller.
LVTTL input, internal 50kΩ pull-up. Active Low
Digital diagnostics status monitor module’s case
temperature.
Digital diagnostics status monitor of the module’s
3.3V bias supply.
2
a
I C SDA and SCL must be open collector or open drain connections.
2
DS-6053 Rev 05 2010-11-09
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