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F-tone 40KM SFP+ ER Optical Transceiver
Features
Applications
Description
F-tone SFP+ER Transceiver is designed for 10GBASE-ER/EW, and 8.5G/10G Fiber- Channel applications.
The transceiver consists of two sections: The transmitter section incorporates a colded EML laser. And the receiver section consists of a PIN photodiode integrated with a TIA. All modules satisfy class I laser safety requirements. F-tone SFP+ER Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF-8472, 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.
Absolute Maximum Ratings
Parameter |
Symbol |
Min |
Max |
Unit |
Supply Voltage |
Vcc |
-0.5 |
3.8 |
V |
Storage Temperature |
Tst |
-40 |
85 |
oC |
Relative Humidity |
Rh |
0 |
85 |
% |
Operating Conditions
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Supply Voltage |
Vcc |
3.13 |
3.3 |
3.47 |
V |
Supply current |
Icc |
360 |
450 |
mA |
|
Operating Case temperature |
Tca |
-5 |
- |
70 |
oC |
Module Power Dissipation |
Pm |
- |
1.2 |
1.5 |
W |
Notes:
[1] Supply current is shared between VCCTX and VCCRX.
[2] In-rush is defined as current level above steady state current requirements.
Transmitter Specifications – Optical
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Center Wavelength |
lc |
1530 |
1565 |
nm |
|
Optical Average Power |
Po |
0 |
- |
+3 |
dBm |
Optical OMA Power |
Pom |
-2.1 |
dBm |
||
Side Mode Suppression Ratio |
SMSR |
30 |
- |
- |
dB |
Optical Transmit Power (disabled) |
PTX_DISABLE |
- |
- |
-30 |
dBm |
Extinction Ratio |
ER |
8.2 |
- |
dB |
|
RIN21OMA [1] |
-128 |
dB/Hz |
|||
Optical Return Loss Tolerance |
21 |
dB |
Notes:
[1] RIN measurement is made with a return loss at 21 dB.
Transmitter Specifications – Electrical
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Data Rate |
Mra |
- |
10.3 |
11.3 |
Gbps |
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 |
- |
- |
100 |
us |
Receiver Specifications – Optical
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Input Operating Wavelength |
λ |
1530 |
- |
1565 |
nm |
Average receive power |
- |
- |
-1.0 |
dBm |
|
Receiver sensitivity in OMA |
- |
- |
-14.1 |
dBm |
|
Stressed receiver sensitivity in OMA[1] |
-11.3 |
dBm |
|||
Maximum Input Power |
RX-overload |
- |
- |
-1 |
dBm |
Reflectance |
Rrx |
- |
- |
-27 |
dB |
Loss of Signal Asserted |
-25 |
- |
- |
dBm |
|
LOS De-Asserted |
- |
- |
-16 |
dBm |
|
LOS Hysteresis |
0.5 |
- |
- |
dB |
Notes:
[1] Measured with conformance test signal for BER = 10–12.The stressed sensitivity values in the table are for system level BER measurements which include the effects of CDR circuits. It is recommended that at least 0.4 dB additional margin be allocated if component level measurements are made
without the effects of CDR circuits.
Receiver Specifications – Electrical
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Data Rate |
Mra |
- |
10.3 |
11.3 |
Gbps |
Differential Output Swing |
Vout P-P |
350 |
- |
850 |
mV |
Rise/Fall Time |
Tr / Tf |
24 |
- |
- |
ps |
Loss of Signal –Asserted |
VOH |
2 |
- |
Vcc3+0.3- |
V |
Loss of Signal –Negated |
VOL |
0 |
- |
+0.4 |
V |
Figure1.Electrical Pin-out Details
Pin Descriptions
Pin |
Symbol |
Name/Description |
1 |
VEET [1] |
Transmitter Ground |
2 |
Tx_FAULT [2] |
Transmitter Fault |
3 |
Tx_DIS [3] |
Transmitter Disable. Laser output disabled on high or open |
4 |
SDA [2] |
2-wire Serial Interface Data Line |
5 |
SCL [2] |
2-wire Serial Interface Clock Line |
6 |
MOD_ABS [4] |
Module Absent. Grounded within the module |
7 |
RS0 [5] |
RS0 for Rate Select: Open or Low = Module supports ≤4.25Gbps High = Module supports 9.95 Gb/s to 10.3125 Gb/s |
8 |
RX_LOS [2] |
Loss of Signal indication. Logic 0 indicates normal operation |
9 |
RS1 [5] |
No connection required |
10 |
VEER [1] |
Receiver Ground |
11 |
VEER [1] |
Receiver Ground |
12 |
RD- |
Receiver Inverted DATA out. AC Coupled |
13 |
RD+ |
Receiver DATA out. AC Coupled |
14 |
VEER [1] |
Receiver Ground |
15 |
VCCR |
Receiver Power Supply |
16 |
VCCT |
Transmitter Power Supply |
17 |
VEET [1] |
Transmitter Ground |
18 |
TD+ |
Transmitter DATA in. AC Coupled |
19 |
TD- |
Transmitter Inverted DATA in. AC Coupled |
20 |
VEET [1] |
Transmitter Ground |
Notes:
[1] Module circuit ground is isolated from module chassis ground within the module.
[2].should be pulled up with 4.7k – 10k ohms on host board to a voltage between 3.15Vand 3.6V.
[3]Tx_Disable is an input contact with a 4.7 kΩ to 10 kΩ pullup to VccT inside the module.
[4]Mod_ABS is connected to VeeT or VeeR in the SFP+ module. The host may pull this contact up to Vcc_Host with a resistor in the range 4.7 kΩ to10 kΩ.Mod_ABS is asserted “High” when the SFP+ module is physically absent from a host slot.
[5]RS0 and RS1 are module inputs and are pulled low to VeeT with > 30 kΩ resistors in the module.
Ordering information
Part Number |
Product Description |
FTCS-151X-40 |
10Gbps, 1550nm SFP+ER 40km, 0oC ~ +70oC |
FTCS-151X-40I |
10Gbps, 1550nm SFP+ER 40km, -40°C to 85°C (Industrial) |