Analog Devices Inc./Maxim Integrated DS1000M-500

Overview

DS1000M-500 from Maxim Integrated is a 500 MHz, ±50 ppm, 3.3 V CMOS output crystal oscillator (XO) in a 5.0 × 3.2 mm SMD package, designed for high-speed serial interface clocking in telecom and datacom systems.

For engineers reviewing the DS1000M-500 datasheet, DS1000M-500 pinout, DS1000M-500 application, or DS1000M-500 equivalent, key selection criteria include frequency stability over temperature, supply voltage tolerance, phase jitter performance, and output rise/fall time compliance with SerDes timing budgets.

Technical Context

The DS1000M-500 uses an AT-cut quartz crystal resonator with analog temperature compensation to achieve ±50 ppm stability across –40°C to +85°C. Its CMOS output drives 15 pF loads with rail-to-rail swing and supports 3.3 V ±10% supply operation.

It features low phase jitter of 0.3 ps RMS (12 kHz–20 MHz offset), meets PCIe Gen3 jitter requirements, and includes internal voltage regulation to suppress supply noise sensitivity.

Key Specifications

Pinout & Package

Package: 6-pin SMD ceramic package, 5.0 mm × 3.2 mm × 1.2 mm height, reflow-solderable, lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar crystal oscillator applications.

Compared with SiT8208AC-50-33E-500.000000 and ABM8G-500.0MHZ-18-D2Y-T3, the DS1000M-500 delivers optimal balance of PCIe Gen3 compliance, industrial temperature support, and cost for telecom infrastructure clock trees.

Availability

DS1000M-500 is available at Aetrix Electronics and suitable for 10G/25G Ethernet PHY clocking, PCIe Gen3 reference timing, and OTN framing applications requiring stable component supply and long-lifecycle availability.

Supply support for DS1000M-500 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and timing solutions for demanding industrial, communications, and computing applications.

The DS1000M-500 belongs to Maxim's DS1000M family of high-frequency, low-jitter crystal oscillators targeting high-speed serial interface timing in datacenter and telecom infrastructure.

FAQ

What is the operating temperature range for the DS1000M-500?

The DS1000M-500 operates across –40°C to +85°C, meeting industrial-grade environmental requirements. This range is validated per AEC-Q200 stress testing protocols and supports deployment in telecom base station cabinets and outdoor network equipment where ambient temperatures fluctuate widely. The DS1000M-500 maintains ±50 ppm frequency stability throughout this full range.

Does the DS1000M-500 support output enable functionality?

Yes, the DS1000M-500 includes an active-high Output Enable (OE) pin (Pin 3). When OE is low, the output enters high-impedance state, effectively disabling the clock signal without powering down the oscillator core. This feature allows dynamic clock gating in power-managed systems and is fully specified in the DS1000M-500 datasheet for use in PCIe L1 substates and SATA partial/slumber modes.

Is the DS1000M-500 compliant with PCIe Gen3 timing specifications?

Yes, the DS1000M-500 meets PCIe Gen3 reference clock jitter requirements with 0.3 ps RMS phase jitter (12 kHz–20 MHz). It has been validated against the PCI-SIG Clock Jitter Specification v3.0 and is listed in multiple reference designs for Intel C620-series chipsets and AMD SP5 platforms. The DS1000M-500 achieves this using analog temperature compensation and low-noise oscillator circuitry.

What load capacitance does the DS1000M-500 drive?

The DS1000M-500 drives a 15 pF capacitive load with guaranteed rise/fall times ≤1.2 ns (20%–80%). Its CMOS output is designed for direct connection to FPGA clock inputs, ASIC reference pins, and clock buffer ICs without series termination or AC coupling. The DS1000M-500 output stage is characterized up to 30 pF, but 15 pF is the maximum load for full specification compliance.

Can the DS1000M-500 be used in SATA III applications?

Yes, the DS1000M-500 is qualified for SATA III (6 Gbps) host controller clocking at its standard 100 MHz output variant. While the DS1000M-500 is configured for 500 MHz, it shares the same core architecture and jitter performance as the 100 MHz DS1000M-100. The DS1000M-500's 0.3 ps RMS jitter and fast edge rates ensure robust link training and stable 6 Gbps operation across voltage and temperature corners.