Ascent Communication Technology

100G CFP2 LR4 10 km

Ascent’s 100G CFP2 LR4 optical transceiver offers service providers, network operators 100 Gigabit Ethernet connectivity options for data center networking, enterprise core aggregation, and service provider transport applications. It integrates receiver and transmitter path on one module.

• Compliant with 100GBASE-LR4 and 4I1-9D1F

• Support line rates from 103.125 Gbps to 111.81 Gbps

• Integrated LAN WDM EML TOSA / ROSA for up to 10 km reach over SMF

• Digital Diagnostics Monitoring Interface

• Duplex LC optical receptacle

• No external reference clock

• Single 3.3 V power supply

• Case operating temperature range:0°C to 70°C

• Power dissipation < 6W

Absolute Maximum Ratings

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Storage Temperature	Ts	‑40	‑	85	°C
Relative Humidity	RH	5	‑	95	%
Power Supply Voltage	VCC	‑0.3	‑	4	V
Signal Input Voltage		Vcc‑0.3	‑	Vcc+0.3	V
Receive Input Optical Power (Damage threshold)	Pdmg			5.0	dBm

Low Speed Electrical Characteristics

Parameter	Symbol	Min..	Typ.	Max.	Unit	Notes
Supply Currents and Voltages
Voltage	Vcc	3.2	3.3	3.4	V	With Respect to GND
Supply Current	Icc			1.8	A
Power Dissipation	Pwr			6.0	W
Power Dissipation (Low Power Mode)	Plp			2.0	W
Low Speed Control and Sense Signals, 3.3 V LVCMOS
Outputs Low Voltage	V_OL			0.2	V	I_OH=100 μA
Output High Voltage	V_OH	Vcc‑0.2			V	I_OH=‑100 μA
Input Low Voltage	V_IL	‑0.3		0.8	V
Input High Voltage	V_IH	2		Vcc3+0.3	V
Input Leakage Current	I_IN	‑10		10	μA
Low Speed Control and Sense Signals, 1.2 V LVCMOS
Outputs Low Voltage	V_OL	‑0.3		0.2	V
Output High Voltage	V_OH	1.0		1.5	V
Output Low Current	I_OL	4			mA
Output High Current	I_OH			‑4	mA
Input Low Voltage	V_IL	‑0.3		0.36	V
Input High Voltage	V_IH	0.84		1.5	V
Input Leakage Current	I_IN	‑100		100	μA
Input Capacitance	C			10	pF
MDC Clock Rate		0.1		4	MHz

High Speed Electrical Specifications

Parameter	Symbol	Min.	Max.	Unit	Notes
Transmitter Electrical Input from Host
Differential Voltage pk‑pk		100	1200	mV
Common Mode Noise (rms)			17.5	mV
Differential Termination Mismatch			10	%
Transition Time		10		ps	20/80 %
Common Mode Voltage		‑0.3	2.8	V
Eye Width	EW15	0.46		UI	At10‑15probability
Eye Height	EH15	100		mV	At 10‑15 probability
Receiver Electrical Output to Host
Differential Voltage pk‑pk		100	1200	mV
Common Mode Noise (rms)			17.5	mV
Differential Termination Mismatch			10	%
Transition Time		9.5		ps	20/80 %
Vertical Eye Closure	VEC		6.5	dB
Eye Width	EW15	0.57		UI	At 10‑15 probability
Eye Height	EH15	240		mV	At 10‑15 probability

Optical Characteristics

Specifications for 100Gbase‑LR4

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Transmitter
Signaling Speed per Lane			25.78125 ± 100 ppm		Gbps
Wavelength Assignment	λ0	1294.53	1295.56	1296.59	nm
	λ1	1299.02	1300.05	1301.09	nm
	λ2	1303.54	1304.58	1305.63	nm
	λ3	1308.09	1309.14	1310.19	nm
Total Output. Power	POUT			10.5	dBm
Transmit OMA per Lane		‑1.3		4.5	dBm
Average Launch Power Per lane		‑4.3		4.5	dBm
SMSR		30			dB
Optical Extinction Ratio	ER	4			dB
Average launch Power off per lane	Poff			‑30	dBm
RIN	RIN			‑130	dB/Hz
Output Eye Mask definition {X1, X2, X3, Y1, Y2, Y3}	{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}					1
Receiver
Signaling Speed per Lane			25.78125 ± 100 ppm		Gbps
Wavelength Assignment		1294.53	1295.56	1296.59	nm
		1299.02	1300.05	1301.09	nm
		1303.54	1304.58	1305.63	nm
		1308.09	1309.14	1310.19	nm
Receive Power (OMA) per Lane	ROMA			4.5	dBm
Average Input Power per Channel	RXPx	‑10.6		4.5	dBm	2
Receiver Sensitivity (OMA) per Lane	Rxsens			‑8.6	dBm
LOS De‑Assert	LOSD	‑30			dBm
LOS Assert	LOSA			‑12	dBm
Receiver Reflectance	Rr			‑26	dB

Notes:

1. Hit ratio 5x10‑5.

2. Measured with a PRBS 231‑1 test pattern, @25.78Gb/s, BER<10‑12 .

Specifications for OUT4 4I1‑9D1F

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Transmitter
Signaling Speed per Lane			27.9525± 20 ppm		Gbps
Wavelength Assignment	λ0	1294.53	1295.56	1296.59	nm
	λ1	1299.02	1300.05	1301.09	nm
	λ2	1303.54	1304.58	1305.63	nm
	λ3	1308.09	1309.14	1310.19	nm
Total Output Power	POUT			8.9	dBm
Average Launch Power per Lane		‑2.5		2.9	dBm
SMSR		30			dB
Optical Extinction Ratio	ER	7			dB
Average launch Power off per Lane	Poff			‑30	dBm
Output Eye Mask definition {X1, X2, X3, Y1, Y2, Y3}	{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}					3
Receiver
Signaling Speed per Lane			27.9525± 20 ppm		Gbps
Wavelength Assignment		1294.53	1295.56	1296.59	nm
		1299.02	1300.05	1301.09	nm
		1303.54	1304.58	1305.63	nm
		1308.09	1309.14	1310.19	nm
Average Input Power per Channel	RXPx	‑8.8		2.9	dBm	4
Equivalent Sensitivity per Channel	Rxsens			‑10.3	dBm
LOS De‑Assert	LOSD	‑30			dBm
LOS Assert	LOSA			‑12	dBm
Receiver Reflectance	Rr			‑26	dB