Low-Jitter 106.25MHz/212.5MHz Fibre-Channel Clock Generator

Active: In Production.

The MAX3610 is a low-jitter, high-performance, dual-rate clock generator optimized for 1Gbps/2Gbps/4Gbps Fibre-Channel applications. When connected with an external AT-cut crystal, the device generates a precision clock output by integrating a crystal oscillator with Maxim's low-noise phase-locked loop (PLL) providing a low-cost solution. By coupling Maxim's low-noise PLL design featuring a low-jitter generation VCO with an inexpensive fundamental mode crystal, the MAX3610 provides the optimum combination of low cost, flexibility, and high performance.

The MAX3610 output frequency is selectable. When using a 26.5625MHz crystal, the output clock rate can be set to either 106.25MHz or 212.5MHz. When operating at 106.25MHz, the typical phase jitter is 0.7ps_RMS from 12kHz to 20MHz. The MAX3610A has low-voltage positive-emitter-coupled logic (LVPECL) clock output drivers. The MAX3610B has low-voltage differential-signal (LVDS) clock output drivers. The MAX3610 output drivers can also be disabled.

The MAX3610 operates from a single +3.3V supply. The PECL version typically consumes 165mW, while the LVDS version typically consumes 174mW. Both devices are available in die form and have a 0°C to +85°C operating temperature range.

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