100G BIDI SR QSFP28 Optical Receive

Features
● QSFP28 module form factor
● Support QSFP28 SFF-8436/8636
● 2×53.125Gbps(26.5625GBd) PAM4 parallel optics architecture
● 4×25.78125Gbps NRZ retimed electrical I/O
● Bandwidth density of 100Gbps bi-directional
● 2 channels 850nm/910nm PIN photo detector
● Internal 4:2 Gearbox with KP4 FEC circuits on both receiver channels
● Duplex LC connector
● Maximum link length of 100m OM4,70m OM3
● Built-in digital diagnostic functions
● Operating case temperature range: 0 to 70°C
● Single 3.3V power supply
● Low power consumption < 4W
● RoHS compliant (lead free)

Applications
● 100G SR Receive applications

Description
The 100G BIDI SR QSFP28 optical Receive is designed for using in 100-Gigabit Ethernet links up to 70m using OM3 and 100m using OM4. It is compliant with the QSFP28 MSA, IEEE802.3cm-2020 and CAUI-4(no FEC)1. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP28 MSA.
The module incorporates 2 channels 850nm/910nm PIN photo detector, receiving each optically over one simplex LC fiber using single-direction optics. This results in an aggregate bandwidth of 100Gbps into a duplex LC cable. This module can convert 2 channels of 50Gbps (PAM4) optical signal to 4 channels of 25Gbps (NRZ) electrical output data. The electrical interface uses a 38-contact edge type connector.

Absolute Maximum Ratings

Parameter	Symbol	Min	Max	Unit
Supply Voltage	Vcc	-0.3	3.6	V
Input Voltage	Vin	-0.3	Vcc+0.3	V
Storage Temperature	Ts	-20	85	ºC
Case Operating Temperature	Tc	0	70	ºC
Humidity (non-condensing)	Rh	5	85	%

Recommended Operating Conditions

Parameter	Symbol	Min	Typical	Max	Unit
Supply Voltage	Vcc	3.13	3.3	3.47	V
Operating Case temperature	Tc	0	–	70	ºC
Signal Rate per Electrical Channel (4 x 25G)		–	25.78125	–	Gbps
Signal Rate per Optical Channel (2 x 50G)		–	53.125	–	Gbps
Humidity	Rh	5	–	85	%
Power Dissipation	Pm	–	–	4	W
Fiber Length for OM3		–	–	70	m
Fiber Length for OM3		–	–	100	m

Electrical Specifications

Parameter	Symbol	Min	Typical	Max	Unit
Differential Input Impedance	Zin	90	100	110	ohm
Differential Output Impedance	Zout	90	100	110	ohm
Differential Input Voltage Amplitude1	ΔVin	–	–	1200	mVp-p
Differential Output Voltage Amplitude2	ΔVout	–	–	1200	mVp-p

Note:

1. Differential input voltage amplitude is measured between TxnP and TxnN.
2. Differential output voltage amplitude is measured between RxnP and RxnN.

Optical Characteristics

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Receiver
Optical Wavelength CH1	λ1	844	850	863	nm	–
Optical Wavelength CH2	λ2	900	910	918	nm
Receiver Sensitivity in  OMA outer	RXsen	–	–	(-6.6,-3.5)	dBm	1
Average receive power	Pin	-8.2	–	4	dBm	–
Receiver Reflectance		–	–	-12	dB	–
LOS Assert		–	-11	–	dBm	–
LOS De-Assert		–	-9	–	dBm	–
LOS Hysteresis		0.5	–	–	dB	–

Note:

1. Measured with conformance test signal at TP3 for BER = 2.4E-4 Pre-FECs

Mechanical Dimensions

Ordering Information

Part Number	Product Description
FTQ2-RBxxHG-SR	100G QSFP28 BIDI Optical Receive 850/910nm, OM3 70m, OM4 100m, PIN, MMF, Dual LC

北亿纤通 | F-tone Networks

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注：本产品有全国产化型号可选
本产品为QSFP28系列光模块（06），仅展示部分参数，如有需要，请联系我们。

Important Notice

Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.

The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.