100G QSFP28 ER1 Lite BIDI 30km Transceiver Module
LAQ28-ER1-xxyy
Product Description
The 100G QSFP28 ER1 Lite BIDI is designed for 30km optical communication applications. It is intended for the service with single mode fiber in 100Gb/s high speed data communications. The optical signals are multiplexed to a single-mode fiber through industrial standard LC receptacle.
Product Features
- Supports 100GBASE-ER1 Lite BIDI
- Lane signaling rate 106.25Gb/s with PAM4
- Up to 30km transmission on SMF
- EML Laser and APD receiver
- 4x25.78Gb/s with NRZ electrical interface (CAUI-4)
- Support KP4 FEC inside the module
- High speed I/O electrical interface
- I2C interface with integrated Digital Diagnostic monitoring
- QSFP28 MSA package with simplex LC connector
- Single +3.3V power supply
- Power consumption <4W
- Compliant to 802.3cu, SFF-8636&SFF-8679 standard
- Compliant to 100G Lambda MSA 100G-ER1 Optical Specifications
- Complies with EU Directive 2015/863/EU
- Operating case temperature: 0 to +70 °C
Applications
- Data Center
- 100 Gigabit Ethernet
Detailed Photos


Product Parameters
Ordering information
Part Number |
Product Description |
LAQ28-30-30409 |
100G BIDI QSFP28 PAM4 1304nmTx/1309nmRx 30km(Inner-FEC) Commercial Temperature |
LAQ28-30-30904 |
100G BIDI QSFP28 PAM4 1309nmTx/1304nmRx 30km(Inner-FEC) Commercial Temperature |
Notes:
If you need more customized services, please contact us.
Absolute Maximum Ratings
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
Notes |
Storage Temperature |
TS |
-40 |
|
+85 |
°C |
|
Supply Voltage |
VCC |
-0.5 |
|
+4.0 |
V |
|
Operating Relative Humidity |
RH |
|
|
+85 |
% |
|
Recommended Operating Conditions
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
Notes |
Operating Case Temperature |
TC |
0 |
|
+70 |
°C |
|
Power Supply Voltage |
VCC |
3.13 |
3.3 |
3.47 |
V |
|
Transmission Distance |
TD |
|
|
30 |
km |
Over SMF |
Optical and Characteristics
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
Notes |
Transmitter |
Center Wavelength |
CW |
1303.54 |
1304.58 |
1305.63 |
nm |
|
1308.09 |
1309.14 |
1310.19 |
nm |
|
Signaling Rate |
SR |
|
|
53.125 |
GBd |
|
Frequency Offset |
Foffset |
-100 |
|
100 |
ppm |
|
Average Launch Power |
PTX |
0 |
|
+5.6 |
dBm |
1 |
Outer Optical Modulation Amplitude |
OMA |
+3.0 |
|
+6.4
|
dBm |
TDECQ<1.4 |
+1.6+TDECQ |
|
dBm |
TDECQ>1.4 |
Transmitter and dispersion eye closure for PAM4 (TDECQ) (max) |
TDECQ |
|
|
+3.9 |
dBm |
|
Average Output Power (Laser Turn off) |
Poff |
|
|
-30 |
dBm |
|
Side Mode Suppression Ratio |
SMSR |
30 |
|
|
dB |
|
Extinction Ratio |
ER |
5 |
|
|
dB |
|
RIN_OMA |
RIN |
|
|
-136 |
dB/Hz |
|
Transmitter reflectance |
Tref |
|
|
-26 |
dB |
|
Optical Return Loss Tolerance |
ORLT |
|
|
15.6 |
dB |
|
Receiver |
Center Wavelength |
CW |
1303.54 |
1304.58 |
1305.63 |
nm |
|
1308.09 |
1309.14 |
1310.19 |
nm |
|
Damage threshold |
Pdamage |
-2.4 |
|
|
dBm |
2 |
Average Rx Power |
PRx |
-14.7 |
|
-3.4 |
dBm |
3 |
Receive power _OMAouter |
POMA |
|
|
-2.6 |
dBm |
|
Receiver sensitivity _OMAouter |
SEN _OMA |
|
|
-12.5 |
dBm |
4 |
Reflectance |
Ref |
|
|
-26 |
dB |
|
Los Assert |
LosA |
-26 |
|
|
dBm |
|
Los De-Assert |
LosDA |
|
|
-15 |
dBm |
|
Los Hysteresis |
LosH |
0.5 |
|
|
dB |
|
Notes:
- The optical power is launched into SMF.
- The receiver shall be able to tolerate, without damage, continuous exposure to an optical input signal having this average power level. The receiver does not have to operate correctly at this input power.
- Average receive power, each lane (min) is informative and not the principal indicator of signal strength.
- Measured with conformance test signal at TP3 using the test pattern PRBS31Q or scrambled idle for stressed receiver sensitivity for the BER= 2.4x10-4.
Electrical Characteristics
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
Notes |
Transmitter (Module Input) |
Input Differential Impedance |
Rin |
|
100 |
|
Ohm |
|
Differential Data Input Amplitude |
VIN,P-P |
|
|
900 |
mVpp |
|
Differential termination mismatch (max) |
D-mismatch |
|
|
10 |
% |
|
DC common-mode input voltage |
|
-0.3 |
|
2.8 |
V |
|
Transition time(20%~80%) |
Tr Tf |
10 |
|
|
ps |
|
LPMode, Reset and ModSelL / Tx dis |
VIL |
-0.3 |
|
0.8 |
V |
|
LPMode, Reset and ModSelL / Tx dis |
VIH |
2.0 |
|
VCC+0.3 |
V |
|
Receiver (Module Output) |
Output Differential Impedance |
Rout |
|
100 |
|
Ohm |
|
Differential Data Output Amplitude |
VOUTP-P |
|
|
900 |
mVpp |
|
Differential termination mismatch (max) |
D-mismatch |
|
|
10 |
% |
|
Transition time, 20% to 80% |
Tr Tf |
12 |
|
|
ps |
|
ModPrsL and IntL/ Rx los |
VOL |
0 |
|
0.4 |
V |
|
ModPrsL and IntL/ Rx los |
VOH |
VCC-0.5 |
|
VCC+0.3 |
V |
|
Parameter |
Range |
Accuracy |
Unit |
Calibration |
Temperature |
0 to 70 |
±3 |
ºC |
Internal |
Voltage |
0 to Vcc |
±3% |
V |
Internal |
Tx Bias Current |
0 to 100 |
±10% |
mA |
Internal |
Tx Output Power |
0 to 5.6 |
±3 |
dB |
Internal |
Rx Input Power |
-14.7 to -3.4 |
±3 |
dB |
Internal |
Communication Interface Timing Characteristics
Parameter |
Symbol |
Min |
Max |
Unit |
Calibration |
Notes |
Initialization time |
t_init |
|
10 |
s |
Time from power on or hot plug until the module is fully functional. This time applies to Power Class 2 or higher modules when LPMode is pulled low by the host, and to all Power Class 1 modules. |
Room Temperature |
Pin Diagram
Pin Definitions
PIN |
Logic |
Symbol |
Description |
Plug Seq. |
Notes |
1 |
|
GND |
Ground |
1 |
1 |
2 |
CML-I |
Tx2n |
Transmitter Inverted Data Input |
3 |
|
3 |
CML-I |
Tx2p |
Transmitter Non-Inverted Data output |
3 |
|
4 |
|
GND |
Ground |
1 |
1 |
5 |
CML-I |
Tx4n |
Transmitter Inverted Data Input |
3 |
|
6 |
CML-I |
Tx4p |
Transmitter Non-Inverted Data output |
3 |
|
7 |
|
GND |
Ground |
1 |
1 |
8 |
LVTLL-I |
ModSelL |
Module Select |
3 |
|
9 |
LVTLL-I |
ResetL |
Module Reset |
3 |
|
10 |
|
VccRx |
+3.3V Power Supply Receiver |
2 |
2 |
11 |
LVCMOS-I/O |
SCL |
2-Wire Serial Interface Clock |
3 |
|
12 |
LVCMOS-I/O |
SDA |
2-Wire Serial Interface Data |
3 |
|
13 |
|
GND |
Ground |
1 |
|
14 |
CML-O |
Rx3p |
Receiver Non-Inverted Data Output |
3 |
|
15 |
CML-O |
Rx3n |
Receiver Inverted Data Output |
3 |
|
16 |
|
GND |
Ground |
1 |
1 |
17 |
CML-O |
Rx1p |
Receiver Non-Inverted Data Output |
3 |
|
18 |
CML-O |
Rx1n |
Receiver Inverted Data Output |
3 |
|
19 |
|
GND |
Ground |
1 |
1 |
20 |
|
GND |
Ground |
1 |
1 |
21 |
CML-O |
Rx2n |
Receiver Inverted Data Output |
3 |
|
22 |
CML-O |
Rx2p |
Receiver Non-Inverted Data Output |
3 |
|
23 |
|
GND |
Ground |
1 |
1 |
24 |
CML-O |
Rx4n |
Receiver Inverted Data Output |
3 |
1 |
25 |
CML-O |
Rx4p |
Receiver Non-Inverted Data Output |
3 |
|
26 |
|
GND |
Ground |
1 |
1 |
27 |
LVTTL-O |
ModPrsL |
Module Present |
3 |
|
28 |
LVTTL-O |
IntL/Rx_LOS |
Interrupt/Rx_LOS |
3 |
3 |
29 |
|
VccTx |
+3.3 V Power Supply transmitter |
2 |
2 |
30 |
|
Vcc1 |
+3.3 V Power Supply |
2 |
2 |
31 |
LVTTL-I |
LPMode/TxDIS |
Low Power Mode/Tx_Disable |
3 |
3 |
32 |
|
GND |
Ground |
1 |
1 |
33 |
CML-I |
Tx3p |
Transmitter Non-Inverted Data Input |
3 |
|
34 |
CML-I |
Tx3n |
Transmitter Inverted Data Output |
3 |
|
35 |
|
GND |
Ground |
1 |
1 |
36 |
CML-I |
Tx1p |
Transmitter Non-Inverted Data Input |
3 |
|
37 |
CML-I |
Tx1n |
Transmitter Inverted Data Output |
3 |
|
38 |
|
GND |
Ground |
1 |
1 |
Notes:
- GND is the symbol for signal and supply (power) common for the QSFP28 module. All are common within the QSFP28 module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal-common ground plane.
- Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrently. Requirements defined for the host side of the Host Edge Card Connector are listed in MSA. The connector pins are each rated for a maximum current of 1000 mA.
- Two Multi-Purpose Pin for supporting Tx_DIS and Rx_LOS function in the 100G QSFP28 ER1 BIDI module.
Partly Management Interface
Page |
Byte |
Bit |
Name |
Description |
00h |
99 |
1 |
LP/TxDis ctrl |
LPMode/TxDis input signal control. See SFF8679 for a complete description. 0b = LPMode 1b = TxDIS |
0 |
IntL/LOSL ctrl |
IntL/LOSL output signal control. See SFF-8679 for a complete description. 0b = IntL 1b = LOSL |
Module Power Supply Specification
100G QSFP28 ER1 Lite BIDI needs power supply of 3.3V , the following figure shows the timing of the initial module turn-on in Low Power Mode, and the later transition to full power mode after the host system has enabled it via the two-wire interface. And shows the power supplies to the module and the according current values. Module power supply refer to SFF-8679 TABLE 5-6.
Mechanical Diagram
ESD Design
Normal ESD precautions are required during the handling of this module. This transceiver is shipped in ESD protective packaging. It should be removed from the packaging and otherwise handled in an ESD protected environment utilizing standard grounded benches, floor mats, and wrist straps.
Parameter |
Threshold value |
Notes |
ESD of high-speed pins |
1KV |
Human Body Model |
ESD of low-speed pins |
2KV |
Human Body Model |
Air discharge during operation |
15KV |
|
Direct contact discharges to the case |
8KV |
|
Safety Specification Design
Do not look into fiber end faces without eye protection using an optical meter (such as magnifier and microscope) within 100 mm, unless you ensure that the laser output is disabled. When operating an optical meter, observe the operation requirements.
CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
Notice
The information provided on these pages contains the product target specifications which are subject to change without notice.
Check with Link-all Sales Office for product updates, changes in specifications, sample availability and production release dates.


