Ascent Communication Technology

100G CFP ER4 40 km

Ascent’s 100G CFP ER4 Optical Transceiver is the optical transceiver module which is a hot pluggable form factor designed for high speed optical networking application.

• Cod Compliant with 100GBASE-ER4

• Support line rates from 103.125 Gbps to 111.81 Gbps

• Integrated LAN WDM EML TOSA, SOA, ROSA for up to 40 km reach over SMF

• CAUI (10x10G) Electrical Interface and 4-lane 25.78Gb/s optical interface

• Duplex LC optical receptacle

• MDIO Interface for module management

• Single 3.3 V power supply

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

• Power dissipation < 9W

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			5.5	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			2.7	A
Power Dissipation	Pwr			9.0	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	‑0.3		0.2	V
Output High Voltage	V_OH	Vcc‑0.2		Vcc+0.3	V
Input Low Voltage	V_IL	‑0.3		0.8	V
Input High Voltage	V_IH	2		Vcc+ 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
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

Optical Characteristics

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Transmitter
Signaling Rate, per Lane			25.78125		Gbps
Lane Wavelength (Range)		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
Rate Tolerance		‑100		100	ppm	1
Side‑Mode Suppression Ratio	SMSR	30			dB
Total Launch Power				8.9	dBm
Average Launch Power, per Lane	Pavg	‑2.9		2.9	dBm
Extinction Ratio	ER	8			dB
Optical Modulation Amplitude, per Lane (OMA)	OMA	0.1			dBm
Difference in Launch Power between any Two Lanes (OMA)				3.6	dB
Transmitter and Dispersion Penalty, per Lane	TDP			2.5	dB
Average Launch Power of OFF Transmitter, per Lane				‑30	dBm
Transmitter Reflectance				‑12	dB
Transmitter Eye Mask {X1, X2, X3, Y1, Y2, Y3}		{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}
Receiver
Signaling Rate, per Lane			25.78125		Gbps
Rate Tolerance		‑100		100	ppm	1
Average Receive Power, per Lane	Pavg	‑20.9		4.5	dBm
Receive Power, per Lane (OMA)				4.5	dBm
Difference in Receiver Power between any Two Lanes (OMA)				4.5	dB
Receiver Sensitivity (OMA), per Lane	Rsen			‑21.4	dBm	2
Stressed Receiver Sensitivity (OMA), per Lane	SRS			‑17.9	dBm
Stressed Receiver Sensitivity Test Conditions
Vertical Eye Closure Penalty, per Lane	VECP		3.5		dB
Stressed Sys J2 Jitter, per Lane	J2		0.3		UI	3
Stressed Sys J9 Jitter, per Lane	J9		0.47		UI	3
Receiver Reflectance				‑26	dB
Los Assert	Plos_on	‑36			dBm
Los De‑Assert	Plos_off			‑24	dBm
Los Hysteresis		0.5			dB

Notes:

1. From nominal rate

1. Receiver sensitivity (OMA), each lane, is informative.

2. Vertical eye closure penalty, stressed eye J2 Jitter, and stressed eye J9 Jitter are test conditions for measuring stressed receiver sensitivity. They are not characteristics of the receiver.