Specifications

Absolute Maximum Specifications

Absolute maximum ratings are those beyond which damage to the device may occur.
Prolonged operation between the operational specifications and absolute maximum ratings is not intended and may cause permanent device degradation.

Parameter	Min	Max	Units
Supply voltage	-0.3	3.6	V
Data input voltage	-0.3	3.465	V
Control input voltage	-0.3	4.0	V
Damage threshold	3.4	---	dBm

Environmental Specifications

This table shows the environmental specifications for the product.

Parameter	Min	Max	Units
Storage temperature	-40	85	°C

Operational Specifications

This section shows the range of values for normal operation.

Parameter	Min	Typ	Max	Units
Supply voltage (V_cc)	3.135	3.3	3.465	V
Power consumption (each end, retiming on all lanes)	---	4.5	5.0	W
Supply noise tolerance (10Hz – 10MHz)	66	---	---	mVpp
Operating case temperature	0	---	70	°C
Operating relative humidity	5	---	85	%

Electrical Specifications

Parameter	Min	Typ	Max	Units
Signaling rate	-100 ppm	26.5625	+100 ppm	GBd
Differential data input swing at TP1a		---	900	mVpp
Differential data output swing at TP4	---	---	900	mVpp
Near-end ESMW (Eye Symmetry Mask Width)	0.265	---	---	UI
Near-end output eye height	70	---	---	mVpp
Output transition time, 20% to 80%	9.5	---	---	ps

Notes:

Multiple clock domains are supported only on line-side Rx. Host side Rx supports a single clock domain only.
QSFP Tx CDR lock can only occur if Tx lane 1 is transmitting data.

Optical Specifications

Parameter	Min	Typ	Max	Units
Transmitter (per lane)
Signaling speed (with retiming)	-100 ppm	26.5625	+100 ppm	GBd
Center wavelength	840	850	860	nm
Spectral width	---	---	0.6	nm
Average launch power	-2.0	---	3.0	dBm
Transmit OMA	-2.0	---	3.0	dBm
Average launch power of off transmitter	---	---	-30	dBm
Extinction ratio	4.0	---	6.0	dB
Transmitter reflectance tolerance	---	---	-12.0	dB
Transmitter return loss	---	---	-18.0	dB
Transmitter eye mask definition				---
Reach on OM3 multi-mode fiber	70	---	---	m
Reach on OM4 multi-mode fiber	100	---	---	m
Receiver (per lane)
Signaling speed (with retiming)	-100 ppm	26.5625	+100 ppm	GBd
Center wavelength	840	850	860	nm
Receive damage threshold (AOP)	5.0	---	---	dBm
Unstressed receiver sensitivity (OMA) at BER = 10^-6	---	---	-5.0	dBm
Receiver Reflectance	---	---	-18.0	dB
LOS assert	---	---	-14	dBm
LOS hysteresis	0.5	---	3.0	dB
Stressed receiver sensitivity (OMA) at BER = 10^-4	---	---	-3.0	dBm
Conditions of stressed receiver sensitivity test
SECQ (Stressed Eye Closure) penalty	---	---	4.9	dB
OMA of each aggressor lane	---	---	3.0	dB
Stressed eye mask definition	TBD			---

The receiver’s performance may degrade due to overload if the maximum values for AOP or OMA are exceeded. The damage threshold is specified in the Absolute Maximum Ratings table.

Rate Select

The MMA1T00 transceiver supports rate select, which is controlled by writing to registers 0x57-0x58. Two bits are assigned for each receiver lane in byte 0x57 (87dec, Rxn_Rate_Select) and two bits for each transmitter lane in byte 0x58 (88dec, Txn_Rate_Select) to specify up to four bitrates, as defined in SFF-8636 Rev 2.9.2 Table 6-5 XN_RATE_SELECT ENCODINGS. All four lanes are required to have the same rate select value.

The below table specifies the rate for each rate select setting.

Rate Select Encodings

Rate Select Value	Operating Rate (GBd)
10	25.78125 NRZ
11	26.56250 PAM4

Mechanical Specifications

Mechanical Dimensions

Label

The following label is applied on the cable’s backshell:

Backshell Label

(sample illustration)

Backshell Label Legend

Symbol	Meaning	Notes
SN – Serial Number
MT	Manufacturer name	2 characters, e.g. MT
YY	Year of manufacturing	2 digits
WW	Week of manufacturing	2 digits
XX	Manufacturer site	2 characters
SSSSS	Serial number	5 digits for serial number, starting from 00001. Reset at start of week to 00001.
Miscellaneous
ZZ	HW and SW revision	2 alpha-numeric characters
YYYY	Year of manufacturing	4 digits
MM	Month of manufacturing	2 digits
DD	Day of manufacturing	2 digits
COO	Country of origin	E.g. China or Malaysia
	Quick response code	Serial number (MTYYWWXXSSSSS)

Regulatory Compliance and Classification

The laser module is classified as Class 1 according to IEC 60825-1, IEC 60825-2 and 21 CFR sub J 1040 (CDRH), TÜV/UL60950-1, CAN/CSA-C22.2 60950-1.

EMC: EN55032 Class A, EN55024, AS/NZS CISPR 32 Class A, CISPR32 Class A, VCCI Class A.

Ask your field engineer or NVIDIA support for a zip file of the certifications for this product.

FCC Class A Notice

Each of the devices complies with CFR47 FCC Class A Part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired

Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur during installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/television technician for help.

Modifications: Any modifications made to this device that are not approved by NVIDIA may void the authority granted to the user by the FCC to operate this equipment.

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