DSA400中文资料4-Output Crystal-less Automotive Clock Gen数据手册Microchip规格书

描述 Description

The DSA400 is a four output crystal-less™ clock generator. It utilizes Microchip’s proven PureSilicon™ MEMS technology to provide excellent jitter and stability while incorporating additional device functionality. The frequencies of the outputs can be identical or independently derived from common PLLs. Each output may be configured independently to support a single ended LVCMOS interface or a differential interface. Differential options include LVDS, HCSL or LVPECL.The DSA400 provides two independent select lines for choosing between two sets of preconfigured frequencies per bank. It also has two OE pins to allow for enabling and disabling outputs. The DSA400 is packaged in a 20-pin QFN (5mm x 3.2mm) and supports automotive grade 2 and 3 temperature range.

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特性 Features

AEC-Q100 Automotive qualified
Wide frequency range: 2.3MHz to 460MHz
Four format-configurable outputs: LVPECL, LVDS, HCSL, LVCMOS
Low RMS Phase Jitter: Complies with PCIe Gen1/2/3/4 Common Clock Spec
Wide Temperature Range:
• Automotive grade 2: -40°C to +105°C
• Automotive grade 3: -40°C to +85°C
High Stability: ±25ppm, ±50ppm
Available pin-selectable frequency table: 1 pin per bank for two frequency sets
High Supply Noise Rejection: -50dBc
20-pin QFN footprint (5.0mm x 3.2mm)
Excellent shock and vibration immunity:
• Qualified to MIL-STD-883
High Reliability: 20x better MTF than quartz-based devices
Wide supply range of 2.25V to 3.6V
Lead free & RoHS-compliant

简介

DSA400属于晶体振荡器谐振器的振荡器。由制造生产的DSA400振荡器振荡器产品用作频率/时间基准源，与常用于类似用途的晶体产品相比，区别在于它们集成了更多功能，用于生成输出的保持和稳定。最简单的振荡器包括晶体或其他谐振元件，并且具备必要的功能，让用户能够获取频率基准，而无需密切关注谐振元件的工作。更先进的器件还集成了温度补偿或控制功能，以获取更稳定的基准或能够进行选择性调节的基准。