회사 블로그 Recycle Microchip PCIe Timing Product:PCIe Oscillator,PCIe Clock Generator,PCIe Buffer,PCIe Switches

Recycle Microchip PCIe Timing Product:PCIe Oscillator,PCIe Clock Generator,PCIe Buffer,PCIe Switches

Shenzhen Mingjiada Electronics Co., Ltd., as a leading enterprise in the electronic component recycling industry, provides comprehensive recycling solutions through professional services, competitive pricing and standardised operations.

Recycling Advantages:

Pricing and Funding: We offer high-value cash recycling services with competitive quotations and prompt settlement, helping clients quickly realise the value of their stock and recover funds.

Assessment System: Our professional assessment team utilises scientific testing procedures, advanced equipment and experienced engineers to carry out rapid and accurate assessments and quotations for chips.

Scope of Recycling: Our recycling scope is extremely broad, covering virtually all brands and categories. Whether popular chips or niche, uncommon models, we can handle them all.

Network and Services: We have established a global recycling network spanning multiple countries, supporting worldwide delivery and offering flexible transaction methods and convenient services.

Compliance and Guarantees: We adhere strictly to formal recycling channels and only accept chips from legitimate sources. Formal contracts ensure that transactions are secure, transparent and compliant.

Microchip leverages MEMS clocks, low-jitter phase-locked loops and Switchtec switching IP to build a comprehensive suite of PCIe timing and switching solutions covering PCIe Gen1 to Gen7 and compatible with the CXL ecosystem. These solutions are designed for AI computing servers, enterprise storage, network switches, automotive ADAS, industrial automation and edge computing platforms. From the primary clock source, multi-phase clock generation and fan-out distribution to link switching and networking, it forms a complete end-to-end solution that meets the stringent jitter, SSC spread spectrum, synchronisation and signal integrity requirements of high-speed buses.

I. PCIe Oscillators

Positioning: The very first-stage reference clock source for PCIe systems, outputting a standard 100 MHz differential reference clock. Available in two main variants—MEMS crystal-less and quartz crystal oscillator—eliminating the need for external passive crystal oscillators, thereby simplifying the BOM and PCB layout.

Representative Models: DSC1224, DSC557 Series

Key Features

1. Native compliance with PCIe Gen 1/2/3/4/5/6/7 specifications; HCSL differential output; support for optional spread-spectrum clock (SSC) to reduce EMI emissions;

2. Utilises Silicon MEMS technology, eliminating the need for an external quartz crystal oscillator; offers superior vibration and shock resistance and reliability compared to traditional crystal oscillator solutions; wide-temperature versions support -40°C to 125°C;

3. Ample jitter margin is provided, reserving the majority of the jitter budget for the downstream link, making it suitable for high-speed CXL and PCIe 6/7 links;

4. Primarily single-channel output with a compact QFN package; supports output enable (OE) control, making it suitable for space-constrained designs such as SSDs, edge cards and embedded boards;

5. The automotive-grade version is AEC-Q100 certified, designed for automotive domain controllers and high-speed in-vehicle PCIe nodes.

Typical applications: AI accelerator cards, NVMe solid-state drives, industrial PCIe peripherals, in-vehicle computing units, and compact embedded hosts.

II. PCIe Clock Generators

Positioning: A single-chip clock SoC integrating a PLL, divider and multi-channel output drivers. It receives a reference source (MEMS oscillator or crystal oscillator input) to generate multiple independent PCIe reference clocks simultaneously; SSC can be enabled individually for some channels. It serves as the core timing hub for servers and multi-endpoint platforms.

Representative Models: ZL30282, DSC557-03, ZL30292 series

Key Features

1. Single-chip integrated PLL, supporting up to 19 HCSL differential outputs; each channel can be independently configured for frequency, SSC enable/disable and output enable; some channels output 100 MHz PCIe clocks, whilst others output 25 MHz platform clocks;

2. Ultra-low intrinsic jitter, with typical RMS jitter of <0.3 ps for non-spread-spectrum outputs; supports coexistence of SSC and non-SSC channels on the same chip, accommodating both EMI requirements and jitter-sensitive switch chips;

3. Native compatibility with PCIe Gen 1 to Gen 7, supporting the Intel DB2000QL server platform standard and adapted to UPI/QPI interface timing;

4. Wide voltage and temperature ranges; industrial grade: –40°C to +85°C; certain aerospace-customised models feature radiation hardening;

5. I²C configuration interface, enabling in-system software adjustment of divider and spread-spectrum parameters, supporting platform timing debugging and dynamic power management;

6. Eliminates the need for multiple discrete oscillators, significantly reducing component count and routing complexity.

Typical applications: AI computing server motherboards, storage JBODs, multi-slot PCIe backplanes, router/switch control boards, and multi-node synchronisation timing for automation equipment.

III. PCIe Clock Buffers

Positioning: Clock fan-out distribution chips that receive a single high-quality PCIe reference clock and replicate multiple phase-coherent, low-additive-jitter HCSL clocks. These are used to distribute a single reference clock to multiple PCIe endpoints, switches and retimers; they do not perform frequency synthesis, but only signal replication and drive amplification.

Representative Models: ZL40294B, SY75602/SY75604/SY75608/SY75612

Key Features

1. Ultra-low added jitter: As low as 6fs in high-end models, far exceeding the 80fs requirements of PCIe Gen6/Gen7 and DB2000QL, providing substantial timing headroom for the system;

2. Extensive fan-out options: 2-, 4-, 8-, 12- and up to 20-channel differential HCSL outputs, with built-in termination resistors per channel to simplify PCB termination design;

3. Channel-independent OE deactivation, supporting clock gating by zone to reduce idle node power consumption;

4. Available in industrial-grade and automotive-grade (AEC-Q100) versions; the SYA756xx automotive-grade series is designed for PCIe clusters within automotive ADAS domains;

5. Fixed-phase distribution with strictly controlled jitter between channels, making it suitable for long-distance clock routing on backplanes and multi-chip synchronisation;

6. 3.3V single-supply, low-power HCSL drivers, reducing dynamic power consumption compared to traditional LVDS buffers.

Typical applications: server backplane clock distribution, PCIe switch cards, CXL memory pools, in-vehicle high-speed computing domains, and high-density storage arrays.

IV. Switchtec™ PCIe Switches

Positioning: The Switchtec series of PCIe packet-switching chips from Microchip are PCIe fabric interconnect devices. When used in conjunction with the three timing devices mentioned above, they enable port expansion, traffic routing, hot-swapping and resource virtualisation between the Root Complex and multiple endpoints and CXL devices; Note: The switches themselves are data-link switching devices, not clock devices; however, Microchip provides reference designs verified in conjunction with its clock generators and buffers, forming a complete PCIe timing and switching solution.

Representative Series: Switchtec Gen4, Gen5, Gen6 series; PCI11xxx / PCI12xxx

Key Features

1. Protocol specifications: PCIe Gen3/Gen4/Gen5; next-generation support for PCIe 6.0 and CXL 3.1; support for SR-IOV, ATS, PRI and PTM (Precision Time Measurement);

2. Flexible port configuration: offers various channel configurations including 4-port, 8-port, 16-port and 24-port options; supports port splitting, reverse ports and multi-host mode ;

3. Integrated hot-swap controller, port isolation and fault isolation ensure that a single-port failure will not cause the entire network to crash;

4. PTM (Precision Time Measurement) enables cross-endpoint time alignment in distributed AI clusters and multi-controller synchronisation scenarios for humanoid robots;

5. Supports virtualisation and resource partitioning, making it suitable for GPU pooling, CXL memory expansion and shared storage architectures;

6. Microchip’s official reference design has been jointly validated with the ZL series clock generators and the ZL40294B clock buffer, ensuring matching timing parameters and reducing hardware debugging risks.

Typical applications: GPU pooling in AI servers, CXL memory expansion chassis, storage switching, industrial multi-controller interconnection, humanoid robot central computing platforms, and edge AI gateways.