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Part No. | Data Rate | Fiber | Distance | Interface | Temp. | DDMI | CMIS |
AQD200CL4CHL010 | 200Gbps | SMF | 10km | CS | 0~+70℃ | Yes | CMIS4.0 |
Absolute Maximum Ratings
Parameter | Symbol | Min. | Typical | Max. | Unit |
Storage Temperature | Ts | -40 | +85 | ||
Power Supply Voltage | Vcc | -0.5 | 3.3 | 3.6 | V |
Data Input Voltage – Single Ended | -0.5 | Vcc+0.5 | V | ||
Data Input Voltage – Differential | 0.8 | V | |||
Operating Relative Humidity | RH | 5 | 85 | % | |
Receiver Damage Threshold, per Lane | Rxdmg | 5.5 | dBm |
Recommended Operating Conditions
Parameter | Symbol | Min. | Typical | Max. | Unit |
Operating case temperature | Tc | 0 | 25 | 70 | °C |
Power supply voltage | Vcc | 3.135 | 3.3 | 3.465 | V |
Power dissipation | PD | 8 | W | ||
Electrical Signal Rate per Channel | 25.78125 | GBd | |||
Optical Signal Rate per Channel | 25.78125 | GBd | |||
Power Supply Noise | 66 | mVpp | |||
Receiver Differential 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 8x25Gbps 2xCAUI-4 electrical input with Equalization (EQ) block, optical multiplexer, DML laser driver, diagnostic monitors and 8 directly modulated laser.
Receiver
As shown in Figure 1, the receiver path of the transceiver contains eight PIN photodiodes, trans-impedance amplifiers (TIA), de-multiplexer and 8x25G 2xCAUI-4 compliant electrical output blocks. The Rx Output Buffer provides CAUI-4 compliant differential outputs for the high speed electrical interface.
The interface between QSFP-DD module and ASIC/SerDes is shown in Figure 2. The high speed signal lines are internally DC-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 is compliant with QSFP-DD MSA. The following pin is provided to control module or display the module status: ModSeIL, ResetL, LPMode/TxDisable, ModePrsL, IntL/RxLOSL. In addition, there is an industry standard two wire serial interface scaled for 3.3V 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 CS port cleaning methods.
General Electrical Characteristics
Parameter | Symbol | Min. | Typical | Max. | Unit |
Transceiver Power Consumption | 8 | W | |||
Transceiver Power Supply Total Current, Total | 2560 | mA |
Reference Points
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 to be made between TP1 and TP4 as illustrated in Figure 3. The cable assembly test fixture of Figure 4 or its equivalent, is required for measuring the cable assembly specifications in 802.3bj 92.10 at TP1 and TP4. |
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 92.6 are made at TP2 utilizing the test fixture specified in 802.3bj 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 802.3bj 92.11.1. |
Figure 3: IEEE 802.3bj 100GBASE-CR4 link
Figure 4: IEEE 802.3bs CAUI-8 compliance points TP1a, TP4a
Figure 5: IEEE 802.3bm CAUI-4 compliance points TP1, TP4
High Speed Electrical Input Characteristics
Parameter | Test Point | Min. | Typical | Max . | Unit | Conditions |
Signaling Rate, Per Lane | TP1 | 25.78125 | GBd | +/- 100 ppm | ||
Differential pk-pk Input Voltage Tolerance |
TP1a |
900 |
mV | |||
Differential Return Loss(min) |
TP1 | Equation(83E-5) |
dB | 802.3bm | ||
Differential to common mode input return loss (min) |
TP1 | Equation(83E-6) |
dB | 802.3bm | ||
Differential 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 |
802.3bm | ||||
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 output voltage | TP4 | 900 | mV | ||
Differential output return loss (Min) | |||||
Differential to common mode conversion return loss (min) | |||||
Differential termination mismatch | |||||
Common mode voltage | |||||
Transition Time (20% to 80%) | |||||
Eye width | |||||
Eye height differential | TP4 | 228 | mV | ||
Vertical eye closure | TP4 | 5.5 | dB |
Optical Characteristics
High Speed Optical Transmitter Characteristics
Parameter | Symbol | Min. | Typical | Max. | Unit |
Signaling speed per lane | BRAVE | 25.78125 | Gbps | ||
Data Rate Variation | -100 | +100 | ppm | ||
Modulation format | NRZ | ||||
Lane_0/4 Center Wavelength | λC0 | 1294.53 | 1295.56 | 1296.59 | nm |
Lane_1/5 Center Wavelength | λC1 | 1299.02 | 1300.05 | 1301.09 | nm |
Lane_2/6 Center Wavelength | λC2 | 1303.54 | 1304.58 | 1305.63 | nm |
Lane_3/7 Center Wavelength | λC3 | 1308.09 | 1309.14 | 1310.19 | nm |
Total Average Output Power | Po | 10.5 | dBm | ||
Side Mode Suppression Ratio | SMSR | 30 | dB | ||
Extinction Ratio | ER | 4 | dB | ||
Average Launch Power each Lane | Peach | -4.3 | 4.5 | dBm | |
Transmit OMA each Lane | TxOMA | -1.3 | 4.5 | dBm | |
Launch power in OMA minus TDP, each lane | OMA-TDP | -2.3 | dBm | ||
Transmitter and Dispersion Penalty per Lane | TDP | 2.2 | dB | ||
Average launch power of OFF transmitter | -30 | dBm | |||
Optical Return Loss Tolerance | 20 | dB | |||
Transmitter Reflectance | -12 | dB | |||
Transmitter eye mask definition {X1, X2, X3, Y1,Y2, Y3} | {0.25, 0.4, 0.45, 0.25, 0.28, 0.4} |
High Speed Optical Receiver Characteristics
Parameter | Symbol | Min. | Typical | Max. | Unit |
Signaling Speed per Lane | BRAVE | 25.78125 | Gbps | ||
Data Rate Variation | -100 | 100 | ppm | ||
Lane_0/4 Center Wavelength | λC0 | 1294.53 | 1295.56 | 1296.59 | nm |
Lane_1/5 Center Wavelength | λC1 | 1299.02 | 1300.05 | 1301.09 | nm |
Lane_2/6 Center Wavelength | λC2 | 1303.54 | 1304.58 | 1305.63 | nm |
Lane_3/7 Center Wavelength | λC3 | 1308.09 | 1309.14 | 1310.19 | nm |
Damage threshold | Rxdmg | 5.5 | dBm | ||
Average receive power each lane | Rxpow | -10.6 | 4.5 | dBm | |
Receive Power (OMA) per Lane | RxOMA | 4.5 | dBm | ||
Receive Power (OMA) per Lane | RxOMA | 4.5 | dBm | ||
Unstressed Receiver Sensitivity (OMA) per Lane | Rxsens | -8.6 | dBm | ||
Stressed Receiver Sensitivity (OMA) per Lane | RXSRS | -6.8 | dBm | ||
Vertical Eye Closure Penalty | VECP | 1.8 | dB | ||
Stressed J2 Jitter | J2 | 0.3 | UI | ||
Stressed J4 Jitter | J4 | 0.47 | UI | ||
LOS Assert | LOSA | -25 | dBm | ||
LOS De-Assert | LOSD | -15 | dBm | ||
LOS Hysteresis | 0.5 | dB | |||
RSSI accuracy | -3 | 3 | dB | ||
Receiver reflectance | -26 | dB |
QSFPDD Transceiver Electrical Pad Layout
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 | |
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 | 3B | |
38 | GND | Ground | 1B | 1 | |
39 | GND | Ground | 1A | 1 | |
40 | CML-I | Tx6n | Transmitter Inverted Data Input | 3A | |
41 | CML-I | Tx6p | Transmitter Non-Inverted Data Input | 3A | |
42 | GND | Ground | 1A | 1 | |
43 | CML-I | Tx8n | Transmitter Inverted Data Input | 3A | |
44 | CML-I | Tx8p | Transmitter Non-Inverted Data Input | 3A | |
45 | GND | Ground | 1A | 1 | |
46 | LVCMOS/CML-I | P/VS4 | Programmable/Module Vendor Specific 4 | 3A | 3 |
47 | LVCMOS/CML-I | P/VS4 | Programmable/Module Vendor Specific 1 | 3A | 3 |
48 | VccRx1 | 3.3V Power Supply | 2A | 2 | |
49 | LVCMOS/CML- O | P/VS2 | Programmable/Module Vendor Specific 2 | 3A | 3 |
50 | LVCMOS/CML- O | P/VS3 | Programmable/Module Vendor Specific 3 | 3A | 3 |
51 | GND | Ground | 1A | 1 | |
52 | CML-O | Rx7p | Receiver Non-Inverted Data Output | 3A | |
53 | CML-O | Rx7n | Receiver Inverted Data Output | 3A | |
54 | GND | Ground | 1A | 1 | |
55 | CML-O | Rx5p | Receiver Non-Inverted Data Output | 3A | |
56 | CML-O | Rx5n | Receiver Inverted Data Output | 3A |
57 | GND | Ground | 1A | 1 | |
58 | GND | Ground | 1A | 1 | |
59 | CML-O | Rx6n | Receiver Inverted Data Output | 3A | |
60 | CML-O | Rx6p | Receiver Non-Inverted Data Output | 3A | |
61 | GND | Ground | 1A | 1 | |
62 | CML-O | Rx8n | Receiver Inverted Data Output | 3A | |
63 | CML-O | Rx8p | Receiver Non-Inverted Data Output | 3A | |
64 | GND | Ground | 1A | 1 | |
65 | NC | No Connect | 3A | 3 | |
66 | Reserved | For future use | 3A | 3 | |
67 | VccTx1 | 3.3V Power Supply | 2A | 2 | |
68 | Vcc2 | 3.3V Power Supply | 2A | 2 | |
69 | LVCMOS-I | ePPS/Clock | 1PPS PTP clock or reference clock input | 3A | 3 |
70 | GND | Ground | 1A | 1 | |
71 | CML-I | Tx7p | Transmitter Non-Inverted Data Input | 3A | |
72 | CML-I | Tx7n | Transmitter Inverted Data Input | 3A | |
73 | GND | Ground | 1A | 1 | |
74 | CML-I | Tx5p | Transmitter Non-Inverted Data Input | 3A | |
75 | CML-I | Tx5n | Transmitter Inverted Data Input | 3A | |
76 | GND | Ground | 1A | 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, VccRx1, Vcc1, Vcc2, VccTx and VccTx1 shall be applied concurrently. Supply requirements defined for the host side of the Host Card Edge Connector are listed in QSFP-DD MSA. For power classes 4 and above the module differential loading of input voltage pads must not result in exceeding contact current limits. Each connector Vcc contact is rated for a maximum current of 1500 mA. | |||||
3: All Vendor Specific, Reserved and No Connect pins may be terminated with 50 ohms to ground on the host. Pad 65 (No Connect) shall be left unconnected within the module. Vendor specific and Reserved pads shall have an impedance to GND that is greater than 10 kOhms and less than 100 pF. | |||||
4: Plug Sequence specifies the mating sequence of the host connector and module. The sequence is 1A, 2A, 3A, 1B, 2B, 3B. Contact sequence A will make, then break contact with additional QSFP-DD pads. Sequence 1A, 1B will then occur simultaneously, followed by 2A, 2B, followed by 3A, 3B. | |||||
5: Full definitions of the P/VSx signals currently under development. On new designs not used P/VSx signals are recommended to be terminated on the host with 10k ohms. | |||||
6: ePPS/Clock if not used recommended to be terminated with 50 ohms to ground on the host. |
Figure 7: Host Board Power Supply Filter
Control Interface Electrical Specifications
Parameter | Symbol | Min. | Typical | Max. | Unit |
SCL and SDA | VOL | 0 | 0.4 | V | |
SCL and SDA | VIL | -0.3 | VCC*0.3 | V | |
VIH | VCC*0.7 | VCC+0.5 | V | ||
Capacitance for SCL and SDA I/O signal | Ci | 14 | pF | ||
Total bus capacitive load for SCL and SDA |
Cb | 100 | pF | ||
200 | pF | ||||
LPMode/TxDisable, ResetL, ModSeIL and ePPS/Clock | VIL | -0.3 | 0.8 | V | |
VIH | 2 | VCC+0.3 | V | ||
LPMode, ResetL and ModSeIL | |lin| | 360 | μA | ||
IntL/RxLOSL | VOL | 0 | 0.4 | V | |
VOH | VCC-0.5 | VCC+0.3 | V | ||
ModPrsL | VOL | 0 | 0.4 | V | |
VOH |
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