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Part No. | Data Rate | Fiber | Distance | Interface | Temp. | DDMI |
AQP100C01310010 | 103Gbps | SMF | 10km | LC | 0~+70℃ | Yes |
Absolute Maximum Ratings
Parameter | Symbol | Min. | Max. | Unit |
Storage Temperature | Ts | -40 | 85 | °C |
Supply Voltage | Vcc | -0.5 | 3.6 | V |
Data input voltage | 0.8 | V | ||
Relative Humidity | RH | 5 | 85 | % |
Recommended Operating Conditions
Parameter | Sym bol | Min. | Typical | Max. | Unit |
Operating Case Temperature | Tc | -40 | 85 | °C | |
Power Supply Voltage | Vcc | 3.135 | 3.3 | 3.465 | V |
Power dissipation | 3.5 | W | |||
Electrical Signal Rate per Channel (NRZ encoded) | 25.78125 | GBd | |||
Optical Signal Rate per Channel (NRZ encoded) | 25.78125 | GBd | |||
Power supply Noise | 66 | mVpp | |||
Receiver different Data output load | 100 | Ohm |
Figure 1: Transceiver Block Diagram
Figure 2: Application Reference Diagram
As shown in Figure 1, the transmitter path of the transceiver contains an 4x25 Gbps CAUI-4 electrical input with equalization (EQ) block, DML driver, DML lasers, optical multiplexer and diagnostic monitor. The DML driver and DML lasers converts 4 channels of 25Gbps (NRZ) electrical input data to 4 channels of 25Gbps (NRZ) LAN-WDM optical signals, the optical multiplexer multiplexes them into a single channel for 100Gb/s optical transmission.
As shown in Figure 1, the receiver path of the transceiver contains optical de-multiplexer, four PIN photodiodes, trans-impedance amplifiers (TIA), CDR and 4x25G CAUI-4 compliant electrical output blocks. The module optically de-multiplexes a 100Gb/s optical input into 4 channels of LAN-WDM optical signals, the TIA and CDR converts 4 channels of 25Gbps (NRZ) LAN-WDM optical signals to 4 channels of 25Gbps (NRZ) electrical output data.
The interface between an ASIC/SerDes and the QSFP28 module shown in Figure 2. The high speed signal lines are internally AC-coupled and the electrical inputs are internally terminated to 100 Ohms differential. All transmitter and receiver electrical channels are compliant to module CAUI-4 specifications per IEEE 802.3bm.
The control signal interface compliant with QSFP28 MSA. The following pin are provided to control module or display the module status: ModPrsL, IntL/RxLOS, ResetL, LPMode/TxDis. In addition, there is an industry standard two wire serial interface scaled for 3.3 volt LVTTL. The definition of control signal interface and the registers of the serial interface memory are defined in the Control Interface & Memory Map section.
Exposure to current surges and overvoltage events can cause immediate damage to the transceiver module. Observe the precautions for normal operation of electrostatic discharge sensitive equipment; Attention shall also be paid to limiting transceiver module exposure to conditions beyond those specified in the absolute maximum ratings.
Optical connectors include female connectors. These elements will be exposed as long as the cable or port plug is not inserted. At this time, always pay attention to protection.
Each module is equipped with a port guard plug to protect the optical port. The protective plug shall always be in place whenever the optical fiber is not inserted. Before inserting the optical fiber, it is recommended to clean the end of the optical fiber connector to avoid contamination of the module optical port due to dirty connector. If contamination occurs, use standard LC port cleaning methods.
General Electrical Characteristics
Parameter | Symbol | Min. | Typical | Max. | Unit |
Transceiver Power Consumption | 3 | 3.5 | W | ||
Transceiver Power Supply Total Current | 960 | 1120 | mA | ||
AC Coupling Internal Capacitor | 0.1 | μF |
Test Point | Description |
TP0 to TP5 | The channel including the transmitter and receiver differential controlled impedance printed circuit board insertion loss and the cable assembly insertion loss. |
TP1 to TP4 | All cable assembly measurements are made between TP1 and TP4 as illustrated in Figure 3. |
TP0 to TP2 TP3 to TP5 | A mated connector pair has been included in both the transmitter and receiver specifications defined in 802.3bj 92.8.3 and 92.8.4. The recommended maximum insertion loss from TP0 to TP2 or from TP3 to TP5 including the test fixture is provided in 802.3bj 92.8.3.6 |
TP2 | Unless specified otherwise, all transmitter measurements defined in 802.3bj 92.8.3 are made at TP2 utilizing the test fixture specified in 92.11.1. |
TP3 | Unless specified otherwise, all receiver measurements and tests defined in 802.3bj 92.8.4 are made at TP3 utilizing the test fixture specified in 92.11.1. |
Figure 3: IEEE 802.3bj 100GBASE-CR4 link
Figure 4: IEEE 802.3bs CAUI-4 compliance points TP1a, TP4a
Parameter | Test Point | Min. | Typical | Max. | Unit | Conditions |
Signaling Rate, Per Lane (NRZ encoded) | TP1 | 25.78125 | GBd | +/- 100 ppm | ||
Differential pk-pk Input Voltage Tolerance | TP1a | 900 | mV | |||
Differential input Return Loss (min) | TP1 | Equation(83E- 5) | dB | 802.3bs | ||
Differential to common mode input return loss (min) | TP1 | Equation(83E- 6) | dB | 802.3bs | ||
SDifferential Termination Mismatch | TP1 | 10 | % | |||
Module stressed input test | TP1a | |||||
Single-ended voltage tolerance range | TP1a | -0.4 | 3.3 | V | ||
DC common-mode output voltage | TP1 | -350 | 2850 | mV | ||
Module stressed input test | ||||||
Eye width | 0.46 | UI | ||||
Applied pk-pk sinusoidal jitter | Table 88- 13 | 802.3bs | ||||
Eye height | 95 | mV |
High Speed Electrical Output CharacteristicS
Parameter | Test Point | Min. | Typical | Max. | Unit |
Signaling Rate, Per Lane(range) |
TP4 | 25.78125 ± 100 ppm |
GBd | ||
Differential peak-to-peak input voltage tolerance | TP4 | 900 | mV | ||
Eye width | TP4 | 0.57 | UI | ||
Eye height |
TP4 |
228 |
mV | ||
Vertical Eye Closure |
TP4 |
5.5 |
dB | ||
Differential output Return Loss (min) | TP4 | Equation(83E-2) | dB | ||
Common to Differential Mode Conversion Return Loss (min) | TP4 | Equation(83E-3) | dB | ||
Differential termination mismatch | TP4 | 10 | % | ||
Transition Time (20% to 80%) | TP4 | 12 | % | ||
Common mode voltage | TP4 | -0.35 | 2.85 | V |
Optical Characteristics
High Speed Optical Transmitter Characteristics
Parameter | Symbol | Min. | Typical | Max. | Unit |
Signaling speed per lane | 25.78125 | Gbps | |||
Modulation format | NRZ | ||||
Lane_0 Center Wavelength | λC0 | 1294.53 | 1295.56 | 1296.59 | nm |
Lane_1 Center Wavelength | λC1 | 1299.02 | 1300.05 | 1301.09 | nm |
Lane_2 Center Wavelength | λC2 | 1303.54 | 1304.58 | 1305.63 | nm |
Lane_3 Center Wavelength | λC3 | 1308.09 | 1309.14 | 1310.19 | nm |
Side-mode Suppression Ratio | SMSR | 30 | dB | ||
Extinction ratio | ER | 4 | dB | ||
Total average launch power | 10.5 | dBm | |||
Average launch power | TxAVG | -4.3 | 4.5 | dBm | |
OMA per lane | TxOMA | -1.3 | 4.5 | dBm | |
Difference in launch power between any two lanes (OMAouter) | 5 | dB | |||
Transmitter and dispersion penalty (TDP), each lane | 2.2 | dB | |||
Launch power in OMA minus TDP, each lane | -2.3 | dBm | |||
RIN20 OMA | -130 | dB/Hz | |||
Average launch power of OFF transmitter | -30 | dBm | |||
Optical return loss tolerance | 20 | dB | |||
Transmitter Reflectance | -12 | dB |
High Speed Optical Receiver Characteristics
Parameter | Symbol | Min. | Typical | Max. | Unit |
Signaling speed per lane | 25.78125 | Gbps | |||
Modulation format | NRZ | ||||
Lane_0 Center Wavelength | λC0 | 1294.53 | 1295.56 | 1296.59 | nm |
Lane_1 Center Wavelength | λC1 | 1299.02 | 1300.05 | 1301.09 | nm |
Lane_2 Center Wavelength | λC2 | 1303.54 | 1304.58 | 1305.63 | nm |
Lane_3 Center Wavelength | λC3 | 1308.09 | 1309.14 | 1310.19 | nm |
Damage threshold | 5.5 | dBm | |||
Average receiver power per lane | -10.6 | 4.5 | dBm | ||
Receive Power (OMA) per Lane | RxOMA | 4.5 | dBm | ||
Receive Sensitivity in OMA per Lane | Rxsens | -8.6 | dBm | ||
Receiver 3 dB electrical upper cutoff frequency, per lane | 31 | GHz | |||
Stressed Receiver Sensitivity (OMA) per Lane | RXSRS | -6.8 | dBm | ||
Optical Return Loss | ORL | -26 | dB | ||
LOS Assert | LOSA | -25 | dBm | ||
LOS De-Assert | LOSD | -12 | dBm | ||
LOS Hysteresis | 0.5 | dB | |||
RSSI accuracy | -2 | +2 | dB |
QSFP28 Transceiver Electrical Pad Layout
Pin Descriptions
Pin | Logic | Symbol | Description | Plug Sequence | Notes |
1 | GND | Ground | 1 | 1 | |
2 | CML-I | Tx2n | Transmitter Inverted Data Input | 3 | |
3 | CML-I | Tx2p | Transmitter Non-Inverted Data Input | 3 | |
4 | GND | Ground | 1 | 1 | |
5 | CML-I | Tx4n | Transmitter Inverted Data Input | 3 | |
6 | CML-I | Tx4p | Transmitter Non-Inverted Data Input | 3 | |
7 | GND | Ground | 1 | 1 | |
8 | LVTTL-I | ModSelL | Module Select | 3 | |
9 | LVTTL-I | ResetL | Module Reset | 3 | |
10 | VccRx | +3.3V Power Supply Receiver | 2 | 2 | |
11 | LVCMOS- I/O | SCL | Two-wire serial interface clock | 3 | |
12 | LVCMOS- I/O | SDA | Two-wire serial interface data | 3 | |
13 | GND | Ground | 1 | 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 | |
25 | CML-O | Rx4p | eceiver Non-Inverted Data Output | 3 | |
26 | GND | Ground | 1 | 1 | |
27 | LVTTL-O | ModPrsL | Module Present | 3 | |
28 |
LVTTL-O | IntL/ RxLOSL | Interrupt. Optionally configurable as RxLOSL via the management interface (SFF-8636). |
3 |
29 | VccTx | +3.3V Power supply transmitter | 2 | 2 | |
30 | Vcc1 | +3.3V Power supply | 2 | 2 | |
31 |
LVTTL-I | LPMode/ TxDis | Low Power Mode. Optionally configurable as TxDis via the management interface (SFF-8636). |
3 | |
32 | GND | Ground | 1 | 1 | |
33 | CML-I | Tx3p | Transmitter Non-Inverted Data input | 3 | |
34 | CML-I | Tx3n | Transmitter Inverted Data Input | 3 | |
35 | GND | Ground | 1 | 1 | |
36 | CML-I | Tx1p | Transmitter Non-Inverted Data Input | 3 | |
37 | CML-I | Tx1n | Transmitter Inverted Data Input | 3 | |
38 | GND | Ground | 1 | 1 | |
1: GND is the symbol for signal and supply (power) common for the module. All are common within the module and all module voltages are referenced to this potential unless otherwise noted. Connect them directly to the host board signal-common ground plane. | |||||
2: VccRx, Vcc1 and VccTx are the receiving and transmission power suppliers and applied concurrently. VccRx, Vcc1 and VccTx are internally connected within the module in any combination. Vcc contacts in SFF- 8662 and SFF-8672 each have a steady state current rating of 1A. | |||||
Figure 7: Host Board Power Supply Filter
Copyright 2022 ATI. All rights reserved.
Copyright 2022 ATI. All rights reserved.
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