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參數(shù)資料
| 型號(hào)： | ASM3P2508AF-08-SR |
| 廠商： | Alliance Semiconductor Corporation |
| 英文描述： | Peak EMI Reducing Solution |
| 中文描述： | 降低峰值電磁干擾解決方案 |
| 文件頁數(shù)： | 8/11頁 |
| 文件大?。?/td> | 3709K |
| 代理商： | ASM3P2508AF-08-SR |
Peak EMI Reducing Solution
8 of 11
rev 1.3
February 2005
ASM3P2508A
An example of a Byte Write via I2C to partially ‘ower
down’he device:
ASM3P2508A can be partially ‘owered down’using bit 1
of Byte 0. The organization of the register bits for Byte ‘’s
given with default values below:
Bit
7
6
5
4
3
2
1
0
Resv Resv Resv
Resv Resv Resv
PLL2
Enable
PLL1
Enable
0
1
0
1
0
1
1
1
The function of partial power down of the device is of
interest to us - that is bit 1 of Byte 0. In the default mode
this bit is logic ‘’As such, the Byte 0 default value is
57 (H). To put ASM3P2508A in ‘ower down’mode, the
bit 1 of Byte 0 is to be changed to logic ‘’Hence writing a
55 (H) via I2C into Byte 0 would put the device in partial
‘ower down’ mode where the PLL block generating
72 MHz / 48 MHz would be powered down while I2C block,
crystal oscillator, and the PLL block generating 120 MHz
would still be active. The organization of the register bits is
as below:
Bit
7
6
5
4
3
2
1
0
Resv
Resv
Resv
Resv
Resv
Resv
PLL2
Enable
PLL1
Enable
0
1
0
1
0
1
0
1
Byte 0
Byte 1
FOUT1CLK (MHz)
FOUT2CLK(MHz)
Power up default
6F(H)
3F(H)
120
72
48_MHz Mode
6F(H)
BF(H)
120
48
Power down PLL with 72MHz
6D(H)
3F(H)
120
-
Power down PLL with 48MHz
6D(H)
BF(H)
120
-
Figure showing a complete data transfer:
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ASM3P2508AF-08-ST | Peak EMI Reducing Solution |
| ASM3P2508SP-08SR | Clock Synthesizer and Frequency Generator with Peak EMI reduction |
| ASM3P2508SP-08ST | Clock Synthesizer and Frequency Generator with Peak EMI reduction |
| ASM3P2508SPF-08ST | Clock Synthesizer and Frequency Generator with Peak EMI reduction |
| ASM3P2508SP | Clock Synthesizer and Frequency Generator with Peak EMI reduction |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ASM3P2508AF-08ST | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:Peak EMI Reducing Solution |
| ASM3P2508AF-08-ST | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Peak EMI Reducing Solution |
| ASM3P2508AG-08SR | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:Peak EMI Reducing Solution |
| ASM3P2508AG-08ST | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:Peak EMI Reducing Solution |
| ASM3P2508SP | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:Clock Synthesizer and Frequency Generator with Peak EMI reduction |
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