The Rambus 32G MPS PHY is a comprehensive IP solution that is optimized for power and area in long-reach channels typical of communications, networking and data center applications. With high performance and multi-protocol compatibility, the PHY supports data rates from 2.5 to 32 Gbps in a wide range of industry-standard interconnect protocols including PCIe 4.0, JESD204B/C, CPRI and Ethernet. It features application-specific optimization enabled by an efficient and scalable architecture with adaptive and programmable receive equalization, and support for transmit FIR adaptation.
32G MPS PHY Subsystem Example
The 32G MPS PHY is designed with a system-oriented approach, taking the interface, interconnect and channel into account when optimizing performance and features that maximize flexibility in today’s most challenging system environments. This makes the PHY ideal for high-performance wireline and 5G wireless infrastructure applications.
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Maintaining signal integrity has become increasingly difficult as data rates moves past 28Gbps to 56Gbps and beyond. Up to 28Gbps rates, NRZ is the preferred and standardized encoding scheme which consists of 1’s and 0’s. NRZ is also referred to as PAM2 (pulse amplitude modulation, 2-level), due to its two amplitude levels which contain 1 bit of information in every symbol. With serial data rates hitting 56 Gb/s per channel, signal impairments caused by increased bandwidth has prompted the high-speed serial data industry to adopt PAM4, or 4-level pulse amplitude modulation.
|Protocol||Data Rate (Gbps)||Application|
|PCIe 4.0||16||Hyperscale data center and big data applications|
|100GBASE-KR4||25.78125||Copper backplane networking|
|40GBase-KR4||10.3125||Copper backplane networking|
|10GBase-KR||10.3125||Copper backplane networking|
|CEI-28G-VSR||19.6-28.1||Telecom and networking|
|CEI-28G-SR||19.9-28.05||Telecom and networking|
|CEI-28G-MR||19.9-28.1||Telecom and networking|
|CEI-25G-LR||19.9-25.8||Telecom and networking|
|CEI11-SR, LR||9.95-11.2||Telecom and networking|
|JESD 204B/C||3.125 – 32||High-speed data converters connectivity|
|CPRI||1.22 – 24.33||Wireless base stations|
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