参数资料
型号: ASM3P2780AF-06OR
厂商: ON Semiconductor
文件页数: 5/7页
文件大小: 0K
描述: IC FREQ MOD 4X EMI REDUCT 6TSOP
产品变化通告: Product Obsolescence 24/Jan/2011
标准包装: 2,500
类型: 频率调制器,扩展频谱时钟发生器
PLL:
输入: 晶体
输出: CMOS
电路数: 1
比率 - 输入:输出: 1:1
差分 - 输入:输出: 无/无
频率 - 最大: 50MHz
除法器/乘法器: 是/无
电源电压: 2.375 V ~ 3.6 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: SC-74,SOT-457
供应商设备封装: 6-TSOP
包装: 带卷 (TR)
ASM3P2780A
Rev. 2 | Page 5 of 7 | www.onsemi.com
Typical Crystal Specifications
Fundamental AT cut parallel resonant crystal
Nominal frequency
33MHz
Frequency tolerance
± 50 ppm or better at 25°C
Operating temperature range
-25°C to +85°C
Storage temperature
-40°C to +85°C
Load capacitance(CP)
18pF
Shunt capacitance
7pF maximum
ESR
25
Note: Note: CL is Load Capacitance and Rx is used to prevent oscillations at overtone frequency of the Fundamental frequency.
Typical Crystal Interface Circuit
CL = 2*(CP – CS),
Where CP = Load capacitance of crystal
CS = Stray capacitance due to CIN, PCB, Trace etc.
Typical Application Schematic
VSS
VDD
2.2F
C2
ModOUT
ModOUT Clock
ASM3P2780A
0.1F
Rs
C1
VDD
Rx
CL
Crystal
R
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