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100Gb/s QSFP28 ZR4 BIDI 80km Transceiver

Features

Support line rates from 103.125 Gb/s to 112.2 Gb/s OTU4
Built-in 4-channel Clock and Data Recovery (CDR) in TX and RX
LAN WDM EML laser and PIN receiver with SOA
Up to 80km reach for G.652 SMF
Hot pluggable 38 pin electrical interface
QSFP28 MSA compliant
BIDI LC optical receptacle
RoHS-10 compliant and lead-free
Excellent EMI performance
Single +3.3V power supply
Maximum power consumption 5.5W
Case operating temperature

Commercial: 0 ~ 70℃
Extended: -5 ~ +85℃

Applications

100GBASE-ZR4 Ethernet Links
Infiniband QDR and DDR interconnects
Telecom networking

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100Gb/s QSFP28 ZR4 BIDI 80km Transceiver

RQ-100GBD80-A/RQ-100GBD80-B

FIBERWDM’ RQ-100GBD80-A/RQ-100GBD80-B is designed for 100G 80km single fiber optical communication applications. This module contains 4-lane optical transmitter, 4-lane optical receiver and module management block including 2 wire serial inter-face. The optical signals are multiplexed to a single-mode fiber through an industry standard LC connector. A block diagram is shown in Figure 1.

Electrical Characteristics

The following electrical characteristics are defined over the Recommended Operating Environment unless otherwise specified.

Parameter	Symbol	Min.	Typ.	Max	Unit	Notes
Power Consumption	p			5.5	W
Supply Current	Icc			1585	mA
Transmitter (each Lane)
Input differential impedance	Rin		100		Ω
Differential Termination Mismatch				10	%
Differential Data Input Amplitude	Vin, PP	180		1000	mV
LPMode, Reset and ModSelL	VIL	-0.3		0.8	V
LPMode, Reset and ModSelL	VIH	2		Vcc+0.3	V
Receiver
Differential Data Output Amplitude	Vout, PP	350		900	mV
Differential Termination Mismatch				10	%
Transition Time, 20 to 80%		9.5			ps
ModPrsL and IntL	VOL	0		0.4	V
ModPrsL and IntL	VOH	Vcc-0.5		Vcc+0.3	V

Optical Characteristics

The following optical characteristics are defined over the Recommended Operating Environment unless otherwise specified.

Parameter			Symbol	Min.	Typical	Max	Unit	Notes
Transmitter
Lane wavelength（range）	RQ-100GBD80-A	L0		1272.55	1273.55	1274.54	nm
		L1		1276.89	1277.89	1278.89	nm
		L2		1281.25	1282.26	1283.27	nm
		L3		1285.65	1286.66	1287.68	nm
	RQ-100GBD80-B	L4		1294.53	1295.56	1296.59	nm
		L5		1299.02	1300.05	1301.09	nm
		L6		1303.54	1304.58	1305.63	nm
		L7		1308.09	1309.14	1310.09	nm
Signaling rate, each lane					25.78125	28.05	Gb/s
Side-mode suppression ratio		SMSR		30
Total launch power		PT		8.0		10.5	dBm
Average launch power, each lane		Pavg		2.0		4.5	dBm
Extinction Ratio		ER		6.0			dB
Difference in Launch Power between any Two Lanes (OMA)		Ptx,diff				3.6	dB
Average launch power of OFF transmitter, each lane		Poff				-30	dBm
Transmitter reflectance		RT				-12	dB
RIN20OMA		RIN				-130	dB/Hz
Optical Return Loss Tolerance		TOL				20	dB
Transmitter eye mask {X1, X2, X3, Y1, Y2, Y3}				{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}
Receiver
Lane wavelength（range）	RQ-100GBD80-A		L0	1294.53	1295.56	1296.59	nm
			L1	1299.02	1300.05	1301.09	nm
			L2	1303.54	1304.58	1305.63	nm
			L3	1308.09	1309.14	1310.09	nm
	RQ-100GBD80-B		L4	1272.55	1273.55	1274.54	nm
			L5	1276.89	1277.89	1278.89	nm
			L6	1281.25	1282.26	1283.27	nm
			L7	1285.65	1286.66	1287.68	nm
Signaling rate, each lane					25.78125	28.05	Gb/s
Average Receive Power, each Lane				-30		-7	dBm
Receive Power (OMA), each Lane						-7	dBm
Receiver reflectance						-26	dB
Receiver sensitivity Average, each lane			SEN1			-22	dBm	1
			SEN2			-21	dBm	2
			SEN3			-28	dBm	3
			SEN4			-27	dBm	4
LOS Assert			LOSA	-40			dBm
LOS Deassert			LOSD			-29	dBm
LOS Hysteresis			LOSH	0.5			dB

Notes:

1. Measured @25.78125Gbps, ER=8.2dB, BER=<1E-12, PRBS=2³¹-1 NRZ

2. Measured @28.05Gbps, ER=8.2dB, BER=<1E-12, PRBS=2³¹-1 NRZ

3. Measured @25.78125Gbps, ER=8.2dB, BER=<5E-5, PRBS=2³¹-1 NRZ

4. Measured @28.05Gbps, ER=8.2dB, BER=<5E-5, PRBS=2³¹-1 NRZ

Digital Diagnostic Functions

The following digital diagnostic characteristics are defined over the normal operating conditions unless otherwise specified.

Parameter	Symbol	Min.	Max	Unit	Range
Temperature monitor absolute error	DMI_ Temp	-3	3	oC	-40~85C
Supply voltage monitor absolute error	DMI _VCC	-3	3	%	0~Vcc
RX power monitor absolute error	DMI_RX	-3	3	dB	-7~-30dBm
Bias current monitor error	DMI_ bias	-10	10	%	0~120mA
TX power monitor absolute error	DMI_TX	-3	3	dB	2~4.5dBm

Absolute Maximum Ratings

It has to be noted that the operation in excess of any individual absolute maximum ratings might cause permanent damage to this module.

Parameter	Symbol	Min	Max	Unit	Notes
Storage Temperature	TS	-40	85	oC
Power Supply Voltage	VCC	-0.3	4.0	V
Relative Humidity (non-condensation)	RH	15	85	%
Damage Threshold	THd	6.5		dBm

Recommended Operating Conditions

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Operating Case Temperature	TOP	0		70	oC	Commercial
		-5		85	oC	Extended
		-40		85	oC	Industrial
Power Supply Voltage	VCC	3.135	3.3	3.465	V
Data Rate, each Lane			25.78125	28.05	Gb/s
Control Input Voltage High		2		Vcc	V
Control Input Voltage Low		0		0.8	V
Link Distance (SMF)	D			80	km	1

Notes:

1. Depending on actual fiber loss/km (link distance specified is for fiber insertion loss of 0.35dB/km)

ModSeIL

The ModSelL is an input pin. When held low by the host, the module responds to 2-wire serial communication commands. The ModSelL allows the use of multiple modules on a single 2-wire interface bus. When the ModSelL is "High", the module shall not respond to or acknowledge any 2-wire interface communication from the host. ModSelL signal input node shall be biased to the "High" state in the module.

In order to avoid conflicts, the host system shall not attempt 2-wire interface communications within the ModSelL de-assert time after any modules are deselected. Similarly, the host shall wait at least for the period of the ModSelL assert time before communicating with the newly selected module. The assertion and de-asserting periods of different modules may overlap as long as the above timing requirements are met.

ResetL:

The ResetL pin shall be pulled to Vcc in the module. A low level on the ResetL pin for longer than the minimum pulse length (t_Reset_init) initiates a complete module reset, returning all user module settings to their default state. Module Reset Assert Time (t_init) starts on the rising edge after the low level on the ResetL pin is released. During the execution of a reset (t_init) the host shall disregard all status bits until the module indicates a completion of the reset interrupt. The module indicates this by asserting "low" an IntL signal with the Data Not_Ready bit negated. Note that on power up (including hot insertion) the module should post this completion of reset interrupt without requiring a reset.

LPMode:

LPMode: The LPMode pin shall be pulled up to Vcc in the module. The pin is a hardware control used to put modules into a low power mode when high. By using the LPMode pin and a combination of the Power override, Power_set and High_Power_Class_Enable software control bits (Address A0h, byte 93 bits 0,1,2).

ModPrsL:

ModPrsL is pulled up to Vcc_Host on the host board and grounded in the module. The ModPrsL is asserted "Low" when inserted and deasserted "High" when the module is physically absent from the host connector.

IntL:

IntL is an output pin. When IntL is "Low", it indicates a possible module operational fault or a status critical to the host system. The host identifies the source of the interrupt using the 2-wire serial interface. The IntL pin is an open collector output and shall be pulled to host supply voltage on the host board. The INTL pin is deasserted "High" after completion of reset, when byte 2 bit 0 (Data Not Ready) is read with a value of '0' and the flag field is read .

Pin Assignment and Pin Description

Figure1. Diagram of host board connector block pin numbers and names

Pin	Symbol	Name/Description	Notes
1	GND	Transmitter Ground (Common with Receiver Ground)	1
2	Tx2n	Transmitter Inverted Data Input
3	Tx2p	Transmitter Non-Inverted Data output
4	GND	Transmitter Ground (Common with Receiver Ground)	1
5	Tx4n	Transmitter Inverted Data Input
6	Tx4p	Transmitter Non-Inverted Data output
7	GND	Transmitter Ground (Common with Receiver Ground)	1
8	ModSelL	Module Select
9	ResetL	Module Reset
10	VccRx	3.3V Power Supply Receiver	2
11	SCL	2-Wire serial Interface Clock
12	SDA	2-Wire serial Interface Data
13	GND	Transmitter Ground (Common with Receiver Ground)
14	Rx3p	Receiver Non-Inverted Data Output
15	Rx3n	Receiver Inverted Data Output
16	GND	Transmitter Ground (Common with Receiver Ground)	1
17	Rx1p	Receiver Non-Inverted Data Output
18	Rx1n	Receiver Inverted Data Output
19	GND	Transmitter Ground (Common with Receiver Ground)	1
20	GND	Transmitter Ground (Common with Receiver Ground)	1
21	Rx2n	Receiver Inverted Data Output
22	Rx2p	Receiver Non-Inverted Data Output
23	GND	Transmitter Ground (Common with Receiver Ground)	1
24	Rx4n	Receiver Inverted Data Output	1
25	Rx4p	Receiver Non-Inverted Data Output
26	GND	Transmitter Ground (Common with Receiver Ground)	1
27	ModPrsl	Module Present
28	IntL	Interrupt
29	VccTx	3.3V power supply transmitter	2
30	Vcc1	3.3V power supply	2
31	LPMode	Low Power Mode
32	GND	Transmitter Ground (Common with Receiver Ground)	1
33	Tx3p	Transmitter Non-Inverted Data Input
34	Tx3n	Transmitter Inverted Data Output
35	GND	Transmitter Ground (Common with Receiver Ground)	1
36	Tx1p	Transmitter Non-Inverted Data Input
37	Tx1n	Transmitter Inverted Data Output
38	GND	Transmitter Ground (Common with Receiver Ground)	1

Notes:

1. GND is the symbol for signal and supply (power) common for QSFP28 modules. 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.

2. VccRx, Vcc1 and VccTx are the receiving and transmission power suppliers and shall be applied concurrently. Recommended host board power supply filtering is shown below. Vcc Rx, Vcc1 and Vcc Tx may be internally connected within the QSFP28 transceiver module in any combination. The connector pins are each rated for a maximum current of 1000mA.

Mechanical Dimensions

Figure2. Mechanical Outline

Order information

Part Number	Product Description
RQ-100GBD80-A	100G QSFP28 BIDI Transceiver, TX1273.55/1277.89/1282.26/1286.66nm/ RX1295.56/1300.05/1304.58/1309.14nm, Simplex LC, 80km, 0~+70°C, with DDM
RQ-100GBD80-B	100G QSFP28 BIDI Transceiver, TX1295.56/1300.05/1304.58/1309.14nm/ RX1273.55/1277.89/1282.26/1286.66nm, Simplex LC, 80km, 0~+70°C, with DDM

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