Takfly Fiber Optic 120km DWDM XFP Fiber Optical Transceiver
Fiber Optic Transceiver Features
Wavelength selectable to C-band ITU-T grid wavelengths
Suitable for use in 100GHz channel spacing DWDM systems XFP MSA Rev 4.5 Compliant
Data rate from 9.95Gbps to 11.3Gbps
Cooled EML and APD receiver link length up to 120km (with amplifier)
Low Power Dissipation 3.5W MaximumXFI and lineside loopback Mode
Supported-5ºC to 70ºC Operating Case Temperature
Diagnostic Performance Monitoring of module temperature, Supply Voltages, laser bias current, transmit optical power, and receive optical power RoHS compliant (lead free)
Fiber Optic Transceiver Applications
SONET OC-192&SDH STM 64
Ethernet (10GBASE and 10GBASE with FEC)DWDM
Networks
Fiber Optic Transceiver Description
Takfly 120km XFP Transceiver exhibits excellent wavelength stability, supporting operation at 100 GHz channel, cost effective module. It is designed for 10G SDH/SONET and 10G Ethernet applications.
The transmitter section incorporates a colded EML laser, and the receiver section consists of a APD photodiode integrated with a TIA, Integrated low power dual CDR with Electronic Dispersion Compensation(EDC).
This module can be used to compensate channel impairments caused by either single mode fiber up to 120 km .All modules satisfy class I laser safety requirements. Takfly XFP transceiver provides an enhanced 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.
Fiber Optic Transceiver Operating Conditions
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Supply Voltage 1 |
Vcc3 |
3.13 |
3.3 |
3.47 |
V |
Supply current 1 |
Icc3 |
- |
- |
750 |
mA |
Supply Voltage 2 |
Vcc5 |
4.75 |
5 |
5.25 |
V |
Supply current 2 |
Icc5 |
- |
- |
500 |
mA |
Supply Voltage 3 |
Vcc2 |
1.71 |
1.8 |
1.89 |
V |
Supply current 3 |
Icc2 |
- |
- |
750 |
mA |
Operating Case temperature |
Tca |
-5 |
- |
70 |
ºC |
Module Power Dissipation |
Pm |
- |
- |
3.5 |
W |
Fiber Optic Transceiver Transmitter Specifications - Optical
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Center Wavelength-Start of Life [1] |
lc |
lc -25 |
lc |
lc +25 |
pm |
Center Wavelength-End of life [1] |
lc |
lc -100 |
lc |
lc+100 |
pm |
Optical Transmit Power |
Po |
-2 |
- |
+2 |
dBm |
Optical Transmit Power (disabled) |
PTX_DIS |
- |
- |
-30 |
dBm |
Extinction Ratio |
ER |
9 |
- |
- |
dB |
Jitter Generation(P-P) |
JG P-P |
- |
- |
0.1 |
UI |
Jitter Generation(RMS) |
JG RMS |
- |
- |
0.01 |
UI |
Spectral Width (-20dB) |
Δλ20 |
- |
|
0.3 |
nm |
Side Mode Suppression Ratio |
SMSR |
30 |
- |
- |
dB |
Dispersion penalty(2400ps/nm) [2] |
DP |
- |
- |
2 |
dB |
Relative Intensity Noise |
RIN |
- |
- |
-130 |
dB/Hz |
Eye Mask |
Compliant with ITU-T G.691 STM-64 eye mask |
Note:
Wavelength stability is achieved within 60 seconds (max) of power up. BER=10^-12; PRBS 2^
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Fiber Optic Transceiver Transmitter Specifications - Electrical
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Input differential impedance |
Rim |
- |
100 |
- |
Ω |
Differential data Input |
VtxDIFF |
120 |
- |
850 |
mV |
Transmit Disable Voltage |
VD |
2.0 |
- |
Vcc3+0.3 |
V |
Transmit Enable Voltage |
Ven |
0 |
- |
+0.8 |
V |
Transmit Disable Assert Time |
Vn |
- |
- |
10 |
us |
Fiber Optic Transceiver Receiver Specifications - Optical
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Maximum Input Power |
RX-overload |
-7 |
- |
- |
dBm |
Input Operating Wavelength |
λ |
1528 |
- |
1565 |
nm |
Reflectance |
Rrx |
- |
- |
-27 |
dB |
Loss of Signal Asserted |
LOS_A |
-34 |
- |
- |
dBm |
LOS De-Asserted |
LOS_D |
- |
- |
-24 |
dBm |
LOS Hysteresis |
LOS_H |
0.5 |
- |
- |
dB |
Receiver Sensitivity |
Data rate (Gb/s) |
BER |
Dispersion (ps/nm) |
Sensitivity back-to-back at OSNR>30dB (dBm) |
Power Penalty at OSNR>30dB (dB) |
9.95 ~10.7 |
1e-12 |
-500 to 2400 |
-24 |
2 |
11.1 ~11.3 |
1e-12 |
-500 to 2400 |
-23 |
2 |
OSNR Performance |
Data rate (Gb/s) |
BER |
Dispersion (ps/nm) |
Min OSNR Back-to-back at Power: -7 to -18dBm (dB) |
Max OSNR Penalty at Power:-7 to -18dBm (dB) |
9.95 ~10.7 |
1e-12 |
-500 to 2400 |
24 |
4 |
11.1 ~11.3 |
1e-4 |
-500 to 2400 |
16 |
4 |
|
|
|
|
|
|
|
|
|
Note:
1. BER=10^-12; PRBS 2^31-1;
Fiber Optic Transceiver Receiver Specifications - Electrical
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Output differential impedance |
Rom |
- |
100 |
-- |
Ω |
Differential Output Swing |
Vout P-P |
350 |
- |
850 |
mV |
Rise/Fall Time [1] |
Tr / Tf |
24 |
- |
- |
ps |
Loss of Signal -Asserted |
VOH |
2 |
- |
Vcc3+0.3- |
V |
Loss of Signal -Negated |
VOL |
GND |
- |
GND+0.5 |
V |
Note:
20%-80%;
Fiber Optic Transceiver Reference Clock
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Clock Differential Input Impedance |
CI |
80 |
100 |
120 |
Ω |
Differential Input Amplitude (p-p) |
DCA |
640- |
- |
1600 |
mV |
Reference Clock Duty Cycle |
RCY |
40 |
- |
60 |
% |
Reference Clock Rise/Fall Time [1] |
Tr/Tf |
200 |
- |
1250 |
ps |
Reference Clock Frequency |
fu |
- |
Baud/64 |
- |
MHz |
Note:
20%-80%;
Fiber Optic Transceiver C-band λc Wavelength Guide
ITU Channel
Product Code |
Frequency(THz) |
Wavelength |
ITU Channel
Product Code |
Frequency(THz) |
Wavelength |
17 |
191.7 |
1563.86 |
40 |
194.0 |
1545.32 |
18 |
191.8 |
1563.05 |
41 |
194.1 |
1544.53 |
19 |
191.9 |
1562.23 |
42 |
194.2 |
1543.73 |
20 |
192.0 |
1561.42 |
43 |
194.3 |
1542.94 |
21 |
192.1 |
1560.61 |
44 |
194.4 |
1542.14 |
22 |
192.2 |
1559.79 |
45 |
194.5 |
1541.35 |
23 |
192.3 |
1558.98 |
46 |
194.6 |
1540.56 |
24 |
192.4 |
1558.17 |
47 |
194.7 |
1539.77 |
25 |
192.5 |
1557.36 |
48 |
194.8 |
1538.98 |
26 |
192.6 |
1556.55 |
49 |
194.9 |
1538.19 |
27 |
192.7 |
1555.75 |
50 |
195.0 |
1537.40 |
28 |
192.8 |
1554.94 |
51 |
195.1 |
1536.61 |
29 |
192.9 |
1554.13 |
52 |
195.2 |
1535.82 |
30 |
193.0 |
1553.33 |
53 |
195.3 |
1535.04 |
31 |
193.1 |
1552.52 |
54 |
195.4 |
1534.25 |
32 |
193.2 |
1551.72 |
55 |
195.5 |
1533.47 |
33 |
193.3 |
1550.92 |
56 |
195.6 |
1532.68 |
34 |
193.4 |
1550.12 |
57 |
195.7 |
1531.90 |
35 |
193.5 |
1549.32 |
58 |
195.8 |
1531.12 |
36 |
193.6 |
1548.51 |
59 |
195.9 |
1530.33 |
37 |
193.7 |
1547.72 |
60 |
196.0 |
1529.55 |
38 |
193.8 |
1546.92 |
61 |
196.1 |
1528.77 |
39 |
193.9 |
1546.12 |
|
|
|
Fiber Optic Transceiver Pin Descriptions
Pin |
Logic |
Symbol |
Name/Description |
Ref. |
1 |
|
GND |
Module Ground |
1 |
2 |
|
VEE5 |
Optional -5.2 Power Supply - Not required |
|
3 |
LVTTL-I |
Mod-Desel |
Module De-select; When held low allows the module to , respond to 2-wire serial interface commands |
|
4 |
LVTTL-O |
Interrupt |
Interrupt (bar); Indicates presence of an important condition which can be read over the serial 2-wire interface |
2 |
5 |
LVTTL-I |
TX_DIS |
Transmitter Disable; Transmitter laser source turned off |
|
6 |
|
VCC5 |
+5 Power Supply |
|
7 |
|
GND |
Module Ground |
1 |
8 |
|
VCC3 |
+3.3V Power Supply |
|
9 |
|
VCC3 |
+3.3V Power Supply |
|
10 |
LVTTL-I |
SCL |
Serial 2-wire interface clock |
2 |
11 |
LVTTL- I/O |
SDA |
Serial 2-wire interface data line |
2 |
12 |
LVTTL-O |
Mod_Abs |
Module Absent; Indicates module is not present. Grounded in the module. |
2 |
13 |
LVTTL-O |
Mod_NR |
Module Not Ready; |
2 |
14 |
LVTTL-O |
RX_LOS |
Receiver Loss of Signal indicator |
2 |
15 |
|
GND |
Module Ground |
1 |
16 |
|
GND |
Module Ground |
1 |
17 |
CML-O |
RD- |
Receiver inverted data output |
|
18 |
CML-O |
RD+ |
Receiver non-inverted data output |
|
19 |
|
GND |
Module Ground |
1 |
20 |
|
VCC2 |
+1.8V Power Supply |
|
21 |
LVTTL-I |
P_Down/RST |
Power Down; When high, places the module in the low power stand-by mode and on the falling edge of P_Down initiates a module reset |
|
Reset; The falling edge initiates a complete reset of the module including the 2-wire serial interface, equivalent to a power cycle. |
|
22 |
|
VCC2 |
+1.8V Power Supply |
|
23 |
|
GND |
Module Ground |
1 |
24 |
PECL-I |
RefCLK+ |
Reference Clock non-inverted input, AC coupled on the host board |
3 |
25 |
PECL-I |
RefCLK- |
Reference Clock inverted input, AC coupled on the host board |
3 |
26 |
|
GND |
Module Ground |
1 |
27 |
|
GND |
Module Ground |
1 |
28 |
CML-I |
TD- |
Transmitter inverted data input |
|
29 |
CML-I |
TD+ |
Transmitter non-inverted data input |
|
30 |
|
GND |
Module Ground |
1 |
Notes:
1. Module circuit ground is isolated from module chassis ground within the module.
2. Open collector; should be pulled up with 4.7k - 10k ohms on host board to a voltage between 3.15Vand 3.6V.
3. Reference Clock input is required.