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參數(shù)資料
| 型號： | LC72144M |
| 廠商： | 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） |
| 文件頁數(shù)： | 15/22頁 |
| 文件大?。?/td> | 308K |
| 代理商： | LC72144M |
Programmable Divider
Note:
= don’t care
General-Purpose Counter
The LC72144M includes a general-purpose 20-bit binary counter whose value can be read out from the DO pin, MSB
first.
When using this counter for frequency measurement, one of four measurement times (4, 8, 32, or 64 ms) is selected by
GT0 and GT1. The frequency input to either the HCTR or the LCTR pin can be measured by determining the number of
pulses input to the counter during the measurement period.
This counter can be used to measure the period of the signal input to the LCTR pin by determining how many cycles of a
reference signal (900 kHz) are input to the counter during one or two periods of the LCTR pin signal.
No. 5377-15/22
LC72144M
DVS
SNS
Divisor setting (N)
Input frequency range
Input port
(A)
1
272 to 65535
10 to 160 MHz
FMIN
(B)
0
1
272 to 65535
2 to 40 MHz
AMIN
(C)
0
0
4 to 4095
0.5 to 10 MHz
AMIN
Minimum input sensitivity (f [MHz])
10
≤
f< 130
40 mVrms
2
≤
f < 25
40 mVrms
0.5
≤
f < 2.5
40 mVrms
(A) FMIN
130
≤
f < 160
70 mVrms
25
≤
f < 40
70 mVrms
2.5
≤
f < 10
70 mVrms
(B) AMIN
(C) AMIN
One period/two
periods extraction
Check signal: 900 kHz
Input signal
switching gate
General-purpose counter
(20-bit binary counter)
DO pin
C = FIF
×
GT
C = (1/T) ÷ check signal (900 kHz)
0 to 3
4 to 7 8 to 11 12 to 15 16 to 19
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC72146 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning |
| LC72146M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning |
| LC72146MA-AH | 功能描述:時鐘合成器/抖動清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| LC72146MHSQR-U-TRM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LC72146V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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