Features
QSFP-DD Serial Optical Interface
QSFP-DD MSA Compliant
Support Protocol
Low Power Consumption
Applications
400G OSFP DR4 Specification
400G, QSFP-DD, MPO12 APC,1310nm SMF, up to 500m.
Functional Block Diagram
General Description
RQDD-400G-DR4 is a Silicon Photonics 400G (4x100G) DR4 transceiver. RQDD-400G-DR4 is a fully integrated, 425 Gb/s optical transceiver for SMF links up to 500m. RQDD-400G-DR4 transmits data in compliance with the optical interface specification IEEE Std802.3-2018 Section 8 400GBASE-DR4. 400GBASE-DR4 specifies the use of 4-level pulse amplitude modulation (PAM4) at 53.125 Gbaud operating at four parallel channels with wavelength on the range of 1304.5-1317.5nm. The bit rate per lane is106.25 Gb/s, which produces an aggregate data rate of 425 Gb/s by means PSM to the transmit ports of the MPO-12 connector. The received optical lanes are paralleled from the receive MPO-12 connector ports to PIN-PD built in PIC (Photonic Integrated Circuit) to recover the PAM4 for interfacing with the electrical interface via with transimpedance amplifier (TIA) surfaced-mounted to PIC.
Absolute Maximum Ratings
|
Parameter |
Symbol |
Min |
Max |
Unit |
|
Storage Temperature |
Ts |
-40 |
85 |
°C |
|
Case Operating Temperature |
Top |
0 |
70 |
|
|
Storage Relative Humidity (non-condensation) |
RH |
- |
85 |
% |
|
Supply Voltage |
Vcc |
0 |
3.6 |
V |
|
Receiver Damage Threshold, per Lane |
PRdmg |
|
5.0 |
dBm |
Recommended Operating Conditions
|
Parameter |
Symbol |
Min |
Max |
Unit |
|
Operating Case Temperature |
TC |
0 |
70 |
°C |
|
Relative Humidity (non- condensation) |
RH |
5 |
85 |
% |
|
Power Supply Voltage |
Vcc |
-3.135 |
3.465 |
V |
|
Supply Current |
Icc |
|
3182 |
mA |
|
Total Power Consumption |
PC |
|
10.5 |
W |
|
Bit Rate |
BR |
|
425 |
Gbps |
Transmitter Optical Interface
|
Parameter |
Accuracy |
Unit |
|
Internally Measured Transceiver Temperature |
+/-3 |
℃ |
|
Internally Measured Transceiver Supply Voltage |
+/-3 |
% |
|
Measured Tx Bias Current |
+/-10 |
% |
|
Measured Tx Output Power |
+/-3 |
dB |
|
Measured Rx Received Average Optical Power |
+/-3 |
dB |
Receiver Optical Interface
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
|
|
Data rate per lane |
BR |
|
53.125 |
|
GBd |
|
|
Modulation format |
|
PAM4 |
|
|||
|
Center Wavelength |
λ |
1304.5 |
1311.0 |
1317.5 |
nm |
|
|
Damage threshold |
THD |
5 |
|
|
dBm |
|
|
Average receive power, each lane |
|
-5.9 |
|
4.0 |
dBm |
|
|
Average receive power, each lane |
|
-5.9 |
|
4.0 |
dBm |
|
|
Receiver reflectance |
Rr |
|
|
-26 |
dB |
|
|
Receiver sensitivity, each lane1 |
SEN |
Max(-3.9, SECQ-5.3) |
dBm |
|||
|
Stressed receiver sensitivity, each lane |
SRS |
|
|
-1.9 |
dBm |
|
|
Rx LOS |
LOS Assert |
|
-15 |
|
-7.9 |
dBm |
|
LOS De-assert |
|
|
|
-7.5 |
dBm |
|
|
LOS Hysteresis |
|
0.5 |
|
|
dB |
|
Note:
1. Receiver sensitivity is informative and is defined for a transmitter with a value of SECQ. Measured with conformance test signal at TP3 for BER = 2.4E-4 Pre-FEC.
Module input characteristics
|
Parameter |
Min |
Typical |
Max |
Unit |
|
Supply Voltage |
3.135 |
|
3.465 |
V |
|
Input Differential Impedance |
90 |
100 |
110 |
Ω |
|
Differential data input swing |
|
|
880 |
mVpp |
|
Differential data output swing |
|
|
900 |
mVpp |
|
Bit Error Rate |
|
|
2.4E-4 |
|
|
Input Logic Level High |
2 |
|
Vcc |
V |
|
Input Logic Level Low |
0 |
|
0.8 |
V |
|
Output Logic Level High |
Vcc-0.5 |
|
Vcc |
V |
|
Output Logic Level Low |
0 |
|
0.4 |
V |
Digital Diagnostic Monitor Accuracy
The following characteristics are defined over recommended operating conditions.
|
Parameter |
Accuracy |
Unit |
|
Internally Measured Transceiver Temperature |
+/-3 |
℃ |
|
Internally Measured Transceiver Supply Voltage |
+/-3 |
% |
|
Measured Tx Bias Current |
+/-10 |
% |
|
Measured Tx Output Power |
+/-3 |
dB |
|
Measured Rx Received Average Optical Power |
+/-3 |
dB |
Package dimensions
Ordering Information
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