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参数资料
| 型号： | LC7218M |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24 |
| 封装： | MFP-24 |
| 文件页数： | 6/16页 |
| 文件大小： | 282K |
| 代理商： | LC7218M |
2. When the general-purpose counter is used the DO pin can be used to check for completion of the general-purpose
counter measurement.
When CTEN is set to 1, DO going low due to changes in IN0 is disabled and DO is set high automatically.
DO is automatically set low when the general-purpose counter measurement completes.
(That is, DO can be used to check for measurement completion.)
PLL Unlock Data Read Out Procedure
The internal data UL(n) is set on the rising edge of ERROR
and reset on the rising edge of CE
.
The ERROR data UL(n) from before the previous CE
rising edge can be read out in mode 3 (data output).
In the example above, the data from the period between t0 and t1 is read out.
No. 4758-14/16
LC7218, 7218M, 7218JM
UL (n)
3210
ERROR < 0.55 s →
0000
0.55 s ≤ ERROR < 1.11 s →
1000
1.11 s ≤ ERROR < 2.22 s →
1001
2.22 s ≤ ERROR < 3.33 s →
1011
3.33 s ≤ ERROR
→
1111
UL0 : 1.11 s
UL1 : 2.22 s
UL2 : 3.33 s
UL3 : 0.55 s
Each bit is set to 1 according to ERROR as described above.
ERROR: the phase difference (for a 7.2 MHz crystal)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LC7218M-TLM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LC7219 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizers |
| LC72191 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in Car Stereo Tuners |
| LC72191JM | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in Car Stereo Tuners |
| LC72191JMA-AH | 功能描述:时钟合成器/抖动清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
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