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參數(shù)資料
| 型號： | ASM3X2105A |
| 廠商： | Alliance Semiconductor Corporation |
| 英文描述： | Low Frequency EMI Reduction |
| 中文描述： | 減少低頻電磁干擾 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大?。?/td> | 455K |
| 代理商： | ASM3X2105A |
October 2003
rev 1.0
Spread Spectrum
Spreading the spectrum of the signal reduces the system EMI. The optimal setting should minimize system EMI
to the fullest without affecting system performance. The spreading is described as a percentage deviation of the
center frequency (Note: The center frequency is the frequency of the external reference input on CLKIN, Pin1).
Example:
The ASM3X2105A is designed for communications, digital video and imaging applications. It is not only
optimized for operation in the 6MHz – 12MHz range, but its output frequency can be extended down to one half
of the input clock frequency using the divide-by-two feature. This feature extends low frequency operation to as
low as 3MHz. Setting pin 3 low (DIV2=0; divide-by-two mode) sets the output frequency (MODOUT) to half the
frequency of the input clock (CLKIN). This is a simple way to generate a spread spectrum modulated low
frequency clock when only a higher frequency signal is available. If you want the output frequency to be the
same as the input, you can either set DIV2=1 or leave it unconnected.
ASM3X2105A
Low Frequency EMI Reduction
3 of 10
Notice: The information in this document is subject to change without notice.
1
2
3
4
CLKIN
XOUT
DIV2
VSS
MODOUT
5
6
7
8
SR0
SSON#
VDD
ASM3X2105A
8.832MHz Crystal
Modulated 4.416MHz
is connected to CLK
input pin of the system
+5V
0.1μF
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| ASM-4.000MHZ-ET | 功能描述:標(biāo)準(zhǔn)時鐘振蕩器 4MHz 100ppm 5Volt -20C +70C RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負(fù)載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列: |
| ASM-4.000MHZ-T | 功能描述:標(biāo)準(zhǔn)時鐘振蕩器 4MHz 5V RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負(fù)載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列: |
| ASM-4.096MHZ-ET | 功能描述:標(biāo)準(zhǔn)時鐘振蕩器 4.096MHz 100ppm 5Volt -20C +70C RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負(fù)載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列: |
| ASM-4.096MHZ-T | 功能描述:標(biāo)準(zhǔn)時鐘振蕩器 4.096MHz 5V RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負(fù)載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列: |
| ASM-4.9152MHZ-T | 功能描述:標(biāo)準(zhǔn)時鐘振蕩器 4.9152MHz 5V RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負(fù)載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列: |
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