參數(shù)資料
型號(hào)： LC72144M
廠(chǎng)商： Sanyo Electric Co.,Ltd.
英文描述： PLL Frequency Synthesizer(鎖相環(huán)頻率合成器)
中文描述： 鎖相環(huán)頻率合成器（鎖相環(huán)頻率合成器）
文件頁(yè)數(shù)： 17/22頁(yè)
文件大?。?/td> 308K
代理商： LC72144M
Integrating Count
Note: CTE: 0
→
General-purpose counter reset
General-purpose counter start
Restarts on a new 1 setting
In integrated count mode, the count value is accumulated in the general-purpose counter.
Care is required to handle counter overflow.
Counter values: 0
H
to FFFFF
H
(1,048,575)
To implement the integrating count operation leave CTE set to 1. When the serial data (IN1) is transmitted again, the general-purpose counter will
start to measure the input again and the result will be added to the count.
1
→
No. 5377-17/22
LC72144M
Frequency
measurement
time
Period
measurement
time
Measurement time
Check signal
One period
Signal input
2.2 V (min)
0.8 V (max)
(during period measurement)
Wait time
CTE = 1
data
At least 40 mVrms
*
(during frequency
measurement)
Note:
*
CTC = 0: 40 mVrms
CTC = 1: 70 mVrms
Internal data
latch (CTE)
General-
purpose
counter
(Integration)
Count complete
Count complete
CTE = 1
*
CTE = 1
*
CTE = 1
*
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