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Anritsu D/A Converter (DAC) for 64Gbaud PAM4 Signal Generation


The G0361A for the MP1800A will help early development of next-generation 400GbE

Anritsu Corporation is starting sales of the company’s new G0361A 64Gbaud 2-bit DAC with MUX accessory for the Anritsu Signal Quality Analyzer MP1800A series from now.

Combining the G0361A with any of the MU183020A/MU183021A 28/32 Gbit/s multi-channel Pulse Pattern Generator (PPG) modules for the MP1800A supports generation of PAM4 signals up to 64 Gbaud, such as the 53.125 Gbaud signal defined by the next-generation 400GbE standard. With a 4:2 multiplexing function in the input section, the G0361A can generate signals ranging from 32 Gbit/s x 4CH NRZ to 64 Gbaud PAM4 supporting easy and low-cost expansion to 64 Gbaud PAM4 required by next-generation 400GbE.

Anritsu the launch of the G0361A for the MP1800A will help early development of next-generation 400GbE.

[Development Background]

The explosive increase in data communications traffic is driving investigation into methods for increasing server and network equipment communications speeds. The 400GbE next-generation Ethernet standard now under investigation not only uses faster symbol bit rates and more lanes, but also uses the PAM modulation method to increase the transfer capacity per unit time. Unlike the presently used NRZ signalling method, PAM4 signalling is a more efficient transmission method carrying twice as much data per unit time and current R&D is focusing on high-speed electronic and optical devices supporting PAM4.

Anritsu’s Signal Quality Analyzer MP1800A series already supports evaluation of devices and modules for the latest communications standards, and connecting this newly released G0361A to the MP1800A offers support for generating high-baud-rate PAM4 signals.

[Product Outline]

The Signal Quality Analyzer MP1800A is a plug-in module type Bit Error Rate Tester (BERT) for generating up to 8 channels of synchronized signals using a 32G PPG module. Connecting the newly released G0361A as an external function module to the MP1800A series supports generation of various signals ranging from 32Gbit/s x 4ch NRZ to 64 Gbaud PAM4. In comparison to methods for generating PAM4 signals from 64 Gbit/s signals, using the G0361A not only eliminates complex setup and configuration issues but also minimizes capital equipment costs and expands support for R&D into next-generation 400GbE.

[Key Features]

  • Supports generation of PAM4 signals over a wide band from DC to 64 Gbaud
  • Integrated 4:2 multiplexer for half-rate NRZ data inputs
  • Low Random Jitter Output
  • Wider setting resolution using variable output amplitude 6 dB (typ.) function
  • Easy connectivity by combination with MU183020A/MU183021A multichannel sync function (skew/pattern setting).

[Target Markets and Applications]

  • Target Markets: High-end servers, communications equipment, optical transceivers
  • Applications: R&D into high-speed electronic devices, optical devices, optical transceiver modules

Details of MP1800A
Details of 400GbE Solutions

About Anritsu

Anritsu Corporation ( has been a provider of innovative communications solutions for more than 120 years. The company's test and measurement solutions include wireless, optical, microwave/RF and digital instruments, operations support systems and solutions that can be used during R&D, manufacturing, installation, and maintenance. Anritsu also provides precision microwave/RF components, optical devices, and high-speed devices for design into communication products and systems. With the addition of OSS monitoring solutions it has expanded its offering to provide complete solutions for existing and next-generation wireline and wireless communication systems and service providers. Anritsu sells in over 90 countries worldwide with approximately 4,000 employees.

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