参数资料
型号: SM840021KA TR
厂商: Micrel Inc
文件页数: 6/10页
文件大小: 0K
描述: IC CLOCK SYNTHESIZER 8TSSOP
产品培训模块: High Bandwidth Product Overview
标准包装: 1,000
系列: RotaryWave™
类型: 时钟/频率合成器
PLL:
输入: 晶体
输出: LVCMOS
电路数: 1
比率 - 输入:输出: 1:1
差分 - 输入:输出: 无/无
频率 - 最大: 125MHz
除法器/乘法器: 是/无
电源电压: 2.375 V ~ 3.465 V
工作温度: -40°C ~ 75°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 8-TSSOP
包装: 带卷 (TR)
Micrel, Inc.
SM840021
March 2010
5
M9999-031810-B
hbwhelp@micrel.com or (408) 955-1690
Functional Description
The SM840021 provides a high performance and high
accuracy solution for a precision clock source at
125MHz derived, from a low cost 25MHz Xtal.
The design of the SM840021 consumes very low power
in the PLL due to a proprietary technology in the VCO
and the associated dividers. The output divider is fixed at
÷26, and the feedback divider is also fixed at ÷130
providing a precision clock at 125MHz. Duty Cycle is
inherently improved to provide a tight control and
stability on this critical specification.
The device provides improved specifications for Duty
Cycle, Jitter, Phase Noise, Power Consumption, and
noise sensitivity.
Additionally, the SM840021 will
operate at either 3.3V or 2.5V supplies.
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