Product Features:
l Hot-pluggable QSFP+ form factor;
l Supports 41.3 Gb/s aggregate bit rate;
l Power dissipation < 3.5W;
l 18.5 dB link insertion loss budget;
l RoHS-6 compliant;
l Single 3.3V power supply;
l Maximum link length of 40km on Single Mode Fiber (SMF);
l Uncooled 4x10Gb/s CWDM transmitter;
l XLPPI electrical interface;
l Duplex LC receptacles;
l Built-in digital diagnostic functions, including Tx/Rx power;
l Commercial: 0°C to +70°C
I. Pin Diagram
II. Pin Descriptions
Pin | Symbol | Name/Description | Ref. |
1 | GND | Ground | 1 |
2 | Tx2n | Transmitter Inverted Data Input | |
3 | Tx2p | Transmitter Non-Inverted Data Input | |
4 | GND | Ground | 1 |
5 | Tx4n | Transmitter Inverted Data Input | |
6 | Tx4p | Transmitter Non-Inverted Data Input | |
7 | GND | Ground | 1 |
8 | ModSe1L | Module Select | |
9 | ResetL | Module Reset | |
10 | Vcc Rx | +3.3V Power supply receiver | |
11 | SCL | 2-wire serial interface clock | |
12 | SDA | 2-wire serial interface data | |
13 | GND | Ground | 1 |
14 | Rx3p | Receiver Non-Inverted Data Output | |
15 | Rx3n | Receiver Inverted Data Output | |
16 | GND | Ground | 1 |
17 | Rx1p | Receiver Non-Inverted Data Output | |
18 | Rx1n | Receiver Inverted Data Output | |
19 | GND | Ground | 1 |
20 | GND | Ground | 1 |
21 | Rx2n | Receiver Inverted Data Output | |
22 | Rx2p | Receiver Non-Inverted Data Output | |
23 | GND | Ground | 1 |
24 | Rx4n | Receiver Inverted Data Output | |
25 | Rx4p | Receiver Non-Inverted Data Output | |
26 | GND | Ground | 1 |
27 | ModPrSL | Module Present | |
28 | IntL | Interrupt | |
29 | VccTx | +3.3V Power supply transmitter | |
30 | Vcc1 | +3.3V Power Supply | |
31 | LPMode | Low Power Mode | |
32 | GND | Ground | 1 |
33 | Tx3p | Transmitter Non-Inverted Data Input | |
34 | Tx3n | Transmitter Inverted Data Input | |
35 | GND | Ground | 1 |
36 | Tx1p | Transmitter Non-Inverted Data Input | |
37 | Tx1n | Transmitter Inverted Data Input | |
38 | GND | Ground | 1 |
Notes:
1. Circuit ground is internally isolated from chassis ground.
III. Absolute Maximum Ratings
Parameter | Symbol | Min. | Typ. | Max. | Unit | Ref. |
Storage Temperature | TS | -40 | 85 | ºC | ||
Storage Ambient Humidity | HA | 0 | 85 | % | ||
Maximum Supply Voltage | VCC1, VCCTX, VCCRX | -0.5 | 3.6 | V | ||
Signal Input Voltage | -0.3 | 4.0 | V | |||
Receiver Damage Threshold | +3.8 | dBm | ||||
Lead Soldering Temperature/Time | TSOLD | 260/10 | ºC/sec | 1 | ||
Lead Soldering Temperature/Time | TSOLD | 360/10 | ºC/sec | 2 |
Notes:
1.Suitable for wave soldering.
2. Only for soldering by iron.
IV. General Product Characteristics
Parameter | Value | Unit | Ref. | |||||||
Module Form Factor | QSFP+ | |||||||||
Number of Lanes | 4 Tx and 4 Rx | |||||||||
Maximum Aggregate Data Rate | 41.2500 | Gb/s | ||||||||
Maximum Data Rate per Lane | 10.3125 | Gb/s | Higher bit rates may be supported. Please contact Inphilight | |||||||
Protocols Supported | 40G Ethernet | |||||||||
Management Interface | Serial,I2c-based,400kHz maximum frequency | As defined by the QSFP+ MSA | ||||||||
Data Rate Specifications | Symbol | Min. | Typ. | Max. | Unit | Ref. | ||||
Bit Rate per Lane | BR | 10.3125 | Gb/s | 1 | ||||||
Bit Error Ratiio | BER | 10-12 | 2 | |||||||
Link distance on SMF-28 | d | 0.002 | 40 | km | 3 | |||||
Note:
1. ± 100 ppm,Compliant with 40GBASE-ER4 and XLPPI per IEEE 802.3bm.
2. Tested with a PRBS 231-1 test pattern.
3. Per 40GBASE-ER4, IEEE 802.3bm.Links longer than 30km are considered to be engineered links, with losses less than the worst case specified for the fiber type.
V. Optical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Ref. |
Transmitter | ||||||
Signaling Speed per Lane | 10.3125 | 11.2 | Gbps | |||
Total Average Launch Power | POUT | 10.5 | dBm | |||
Average Output Power per lane | POUT | -2.7 | 4.5 | dBm | ||
Transmit OMA per Lane | TxOMA | 0.3 | 5.0 | dBm | 1 | |
Extinction Ratio | ER | 5.5 | dB | |||
Center Wavelength | λC | 1264.5 1284.5 1304.5 1324.5 | 1271 1291 1311 1331 | 1277.5 1297.5 1317.5 1337.5 | nm | |
Sidemode Suppression ratio | SMSR | 30 | dB | |||
Transmitter and Dispersion Penalty | TDP | 2.6 | dB | |||
Relative Intensity Noise | RIN | 128 | dB/Hz | |||
Transmitter OFF Output Power | POff | -30 | dBm | |||
Transmitter eye mask definition {X1,X2,X3,Y1,Y2,Y3} | 0.25,0.4,0.45,0.25,0.28,0.4 | |||||
Receiver | ||||||
Signaling Speed per Lane | 10.3125 | 11.2 | Gbps | |||
Input Optical Wavelength | λIN | 1264.5 1284.5 1304.5 1324.5 | 1271 1291 1311 1331 | 1277.5 1297.5 1317.5 1337.5 | nm | |
Rx Sensitivity per lane | RSENS1 | -19 | dBm | |||
Input Saturation Power (Overload) | PSAT | +3.8 | dBm | |||
Receiver Reflectance | Rfl | -26 | dBm | |||
Loss of Signal Assert | PA | -35 | dBm | |||
Loss of Signal De-assert | PD | -19 | dBm | |||
LOS Hysteresis | PD - PA | 0.5 | 6 | dB | ||
Notes:
1. Minimum value is informative.
VI. Memory Map and Control Registers
Compatible with SFF-8636 (QSFP+ MSA)
VII. Electrical Interface Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Ref. |
Supply Voltage | VCC1, VCCTX, VCCRX | 3.1 | 3.47 | V | ||
Supply Current | ICC | 1130 | mA | |||
Transmitter | ||||||
Input different impedance | Rin | 90 | 100 | 110 | Ω | 2 |
Single ended data input swing | Vin,pp | 120 | 820 | mV | ||
Transmitter Disable Voltage | VDIS | 2 | VCC | V | 3 | |
Transmitter Enable Voltage | VEN | 0 | 0.8 | V | ||
Receiver | ||||||
Output different impedance | Rout | 90 | 100 | 110 | Ω | 2 |
Single ended data output swing | Vout,pp | 340 | 850 | mV | 4 | |
LOS Asserted | VLOSA | 2 | VCCHOST | V | 5 | |
LOS De-asserted | VLOSD | 0 | 0.8 | V | 5 | |
Power Supply Rejection | PSR | 50 | mVpp | |||
Note :
1.Maximum total power value is specified across the full temperature and voltage range.
2.Connected directly to TX data input pins. AC coupled thereafter.
3.Or open circuit.
4.Into 100Ωdifferential termination.
5.Loss Of Signal is LVTTL. Logic “0”indicates normal operation; logic “1” indicates no signal detected.
VIII. Mechanical Specifiactions

Product Features
l Hot-pluggable QSFP+ form factor
l Supports 41.3 Gb/s aggregate bit rate
l Power dissipation < 3.5W
l 18.5 dB link insertion loss budget
l RoHS-6 compliant
l Single 3.3V power supply
l Maximum link length of 40km on Single Mode Fiber (SMF)
l Uncooled 4x10Gb/s CWDM transmitter
l XLPPI electrical interface
l Duplex LC receptacles
l Built-in digital diagnostic functions, including Tx/Rx power
l Commercial: 0°C to +70°C
Applications | Compliance |
40GBASE-ER4 40G Ethernet | QSFP+ MSA. |
IEEE802.3bm | |
SFF-8436 | |
RoHS |
Ordering Information
Part NO. | Bit Rate (Gbps) | Laser (nm) | Distance(km) | Media | DDMI | Connector | Temp(℃) |
FSANLC23-K40C | 41.3 | 1271nm 1291nm 1311nm 1331nm | 40 | single-mode fiber | YES | LC | 0~70 |