Good Quality SFP Module – 100Gb/S Multimode 100m | MTP/MPO Connector QSFP28 Transceiver JHA-Q28C01 – JHA

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Good Quality SFP Module – 100Gb/S Multimode 100m | MTP/MPO Connector QSFP28 Transceiver JHA-Q28C01 – JHA Detail:

Features:

♦ 4 independent full-duplex channels

♦ Up to 27.95Gbps per channel bandwidth

♦ Aggregate bandwidth of > 100Gbps

♦ MTP/MPO optical connector

♦ QSFP28 MSA compliant

♦ Compliant with IEEE 802.3-2012 Clause 88 standard IEEE 802.3bm CAUI-4 chip to module electrical standard ITU-T G.959.1-2012-02 standard

♦ Digital diagnostic capabilities

♦ Single +3.3V power supply operating

♦ Temperature range 0°C to 70°C

♦ RoHS Compliant Part

Applications:

♦ Local Area Network (LAN)

♦ Wide Area Network (WAN)

♦ Ethernet switches and router applications

Description:

The JHA-Q28C01 is a transceiver module designed for 100m optical communication applications. The design is compliant to 100GbASE-SR4 of the IEEE 802.3-2012 Clause 88 standard IEEE 802.3bm CAUI-4 chip to module electrical standard ITU-T G.959.1-2012-02 standard . The module converts 4 inputs channels (ch) of 25.78Gbps to 27.95Gbps electrical data to 4 lanes optical signals, and multiplexes them into a single channel for 100Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 100Gb/s input into 4 lanes signals, and converts them to 4 lanes output electrical data.

An optical fiber ribbon cable with an MPO/MTP connector at each end plugs into the QSFP28 module receptacle. The orientation of the ribbon cable is “keyed” and guide pins are present inside the module’s receptacle to ensure proper alignment. The cable usually has no twist (key up to key up) to ensure proper channel to channel alignment. Electrical connection is achieved though a z-pluggable 38-pin IPASS® connector.

The module operates from a single +3.3V power supply and LVCMOS/LVTTL global control signals such as Module Present, Reset, Interrupt and Low Power Mode are available with the modules. A 2-wire serial interface is available to send and receive more complex control signals and to obtain digital diagnostic information. Individual channels can be addressed and unused channels can be shut down for maximum design flexibility.

The JHA-Q28C01 is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP28 Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference. The module offers very high functionality and feature integration, accessible via a two-wire serial interface.

• Absolute Maximum Ratings

Parameter	Symbol	Min.	Typical	Max.	Unit
Storage Temperature	T_S	-40		+85	°C
Supply Voltage	V_CCT, R	-0.5		4	V
Relative Humidity	RH	0		85	%

• Recommended Operating Environment:

Parameter	Symbol	Min.	Typical	Max.	Unit
Case operating Temperature	T_C	0		+70	°C
Supply Voltage	V_{CCT, R}	+3.13	3.3	+3.47	V
Supply Current	I_CC			1000	mA
Power Dissipation	PD			3.5	W

• Electrical Characteristics (T_OP = 0 to 70 °C, VCC = 3.13 to 3.47 Volts

Parameter	Symbol	Min	Typ		Max	Unit	Note
Data Rate per Channel		-	25.78125			Gbps
Power Consumption		-	2.5		3.5	W
Supply Current	Icc		0.75		1.0	A
Control I/O Voltage-High	VIH	2.0			Vcc	V
Control I/O Voltage-Low	VIL	0			0.7	V
Inter-Channel Skew	TSK				150	Ps
RESETL Duration			10			Us
RESETL De-assert time					100	ms
Power On Time					100	ms
Transmitter
Single Ended Output Voltage Tolerance		0.3		4		V	1
Common mode Voltage Tolerance		15				mV
Transmit Input Diff Voltage	VI	120		1200		mV
Transmit Input Diff Impedance	ZIN	80	100	120
Data Dependent Input Jitter	DDJ			0.1		UI
Data Input Total Jitter	TJ			0.28		UI
Receiver
Single Ended Output Voltage Tolerance		0.3		4		V
Rx Output Diff Voltage	Vo		600	800		mV
Rx Output Rise and Fall Voltage	Tr/Tf			35		ps	1
Total Jitter	TJ			0.7		UI
Deterministic Jitter	DJ			0.42		UI

Note:

20～80%

• Optical Parameters(TOP = 0 to 70 °C, VCC = 3.0 to 3.6 Volts)

Parameter	Symbol	Min	Typ	Max	Unit	Ref.
Transmitter
Optical Wavelength	λ	840		860	nm
RMS Spectral Width	Pm		0.5	0.65	nm
Average Optical Power per Channel	Pavg	-8	-2.5	0	dBm
Laser Off Power Per Channel	Poff			-30	dBm
Optical Extinction Ratio	ER	3.5			dB
Relative Intensity Noise	Rin			-128	dB/HZ	1
Optical Return Loss Tolerance				12	dB
Receiver
Optical Center Wavelength	λ_C	840		860	nm
Receiver Sensitivity per Channel	R		-10.5		dBm
Maximum Input Power	P_MAX	+0.5			dBm
Receiver Reflectance	Rrx			-12	dB
LOS De-Assert	LOS_D			-14	dBm
LOS Assert	LOS_A	-30			dBm
LOS Hysteresis	LOS_H	0.5			dB

Note

12dB Reflection

• Diagnostic Monitoring Interface

Digital diagnostics monitoring function is available on all QSFP28 SR4. A 2-wire serial interface provides user to contact with module. The structure of the memory is shown in flowing. The memory space is arranged into a lower, single page, address space of 128 bytes and multiple upper address space pages. This structure permits timely access to addresses in the lower page, such as Interrupt Flags and Monitors. Less time critical time entries, such as serial ID information and threshold settings, are available with the Page Select function. The interface address used is A0xh and is mainly used for time critical data like interrupt handling in order to enable a one-time-read for all data related to an interrupt situation. After an interrupt, IntL, has been asserted, the host can read out the flag field to determine the affected channel and type of flag.

Page02 is User EEPROM and its format decided by user.

The detail description of low memory and page00.page03 upper memory please see SFF-8436 document.

• Timing for Soft Control and Status Functions

Parameter	Symbol	Max	Unit	Conditions
Initialization Time	t_init	2000	ms	Time from power on1, hot plug or rising edge of Reset until the module is fully functional2
Reset Init Assert Time	t_reset_init	2	μs	A Reset is generated by a low level longer than the minimum reset pulse time present on the ResetL pin.
Serial Bus Hardware Ready Time	t_serial	2000	ms	Time from power on1 until module responds to data transmission over the 2-wire serial bus
Monitor Data ReadyTime	t_data	2000	ms	Time from power on1 to data not ready, bit 0 of Byte 2, deasserted and IntL asserted
Reset Assert Time	t_reset	2000	ms	Time from rising edge on the ResetL pin until the module is fully functional2
LPMode Assert Time	ton_LPMode	100	μs	Time from assertion of LPMode (Vin:LPMode =Vih) until module power consumption enters lower Power Level
IntL Assert Time	ton_IntL	200	ms	Time from occurrence of condition triggering IntL until Vout:IntL = Vol
IntL Deassert Time	toff_IntL	500	μs	toff_IntL 500 μs Time from clear on read3 operation of associated flag until Vout:IntL = Voh. This includes deassert times for Rx LOS, Tx Fault and other flag bits.
Rx LOS Assert Time	ton_los	100	ms	Time from Rx LOS state to Rx LOS bit set and IntL asserted
Flag Assert Time	ton_flag	200	ms	Time from occurrence of condition triggering flag to associated flag bit set and IntL asserted
Mask Assert Time	ton_mask	100	ms	Time from mask bit set4 until associated IntL assertion is inhibited
Mask De-assert Time	toff_mask	100	ms	Time from mask bit cleared4 until associated IntlL operation resumes
ModSelL Assert Time	ton_ModSelL	100	μs	Time from assertion of ModSelL until module responds to data transmission over the 2-wire serial bus
ModSelL Deassert Time	toff_ModSelL	100	μs	Time from deassertion of ModSelL until the module does not respond to data transmission over the 2-wire serial bus
Power_over-ride orPower-set Assert Time	ton_Pdown	100	ms	Time from P_Down bit set 4 until module power consumption enters lower Power Level
Power_over-ride or Power-set De-assert Time	toff_Pdown	300	ms	Time from P_Down bit cleared4 until the module is fully functional3

Note：

1. Power on is defined as the instant when supply voltages reach and remain at or above the minimum specified value.

2. Fully functional is defined as IntL asserted due to data not ready bit, bit 0 byte 2 de-asserted.

3. Measured from falling clock edge after stop bit of read transaction.

4. Measured from falling clock edge after stop bit of write transaction.

• Transceiver Block Diagram

Figure1: Block Diagram

• Pin Assignment

Diagram of Host Board Connector Block Pin Numbers and Name

l Pin Description

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

Notes:

GND is the symbol for single and supply(power) common for QSFP28 modules, All are common within the QSFP28 module and all module voltages are referenced to this potential otherwise noted. Connect these directly to the host board signal common ground plane. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
VccRx, Vcc1 and VccTx are the receiver and transmitter power suppliers and shall be applied concurrently. Recommended host board power supply filtering is shown below. VccRx, Vcc1 and VccTx may be internally connected within the QSFP28 transceiver module in any combination. The connector pins are each rated for maximum current of 500mA.

• Optical Interface Lanes and Assignment

Below figure shows the orientation of the multi-mode fiber facets of the optical connector