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參數(shù)資料
| 型號(hào)： | LC72146 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | PLL Frequency Synthesizer for Electronic Tuning(用于電子調(diào)諧的鎖相環(huán)頻率合成器) |
| 中文描述： | 鎖相環(huán)頻率合成器電子調(diào)諧（用于電子調(diào)諧的鎖相環(huán)頻率合成器） |
| 文件頁(yè)數(shù)： | 10/21頁(yè) |
| 文件大?。?/td> | 356K |
| 代理商： | LC72146 |
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Continued from preceding page.
No. 4922-10/21
LC72146, 72146M
No.
Name
Function
Related bits
DO and I/O5 output control data
Bits ULD, DT0, DT1, IL0 and IL1 control the mode of outputs DO and I/O5 as shown in Table 6 and Table 7.
Table 6 DO and I/O5 output flag selection
Note:
*
1.End-UC flags that general-purpose counter operation has finished.
*
2.Applicable only if I/O5 is set to be an output port.
Figure 3 DO output state
Table 7 IN state selection
Note: 1. If I/O1 or I/O2 is set to be an output port, IN becomes open.
2. DO does not go low when the crystal oscillator has stopped.
[When reference frequencies are as these: R3 = R2 = R1 = 1; R0 = 0]
Don’t care.
Counter control
Bits CTS0 and CTS1 select the counter input as shown in Table 8.
Table 8 Counter input and measurement mode selection
Note:
×
= don’t care
Bit CTE starts the counter when 1, and resets the counter, when 0.
Bits GT0 and GT1 select the measurement time in frequency measurement mode or the number of
periods to count in period measurement mode as shown in Table 9.
Table 9 Measurement duration selection
When CTE is 0 the input is pulled down, and when CTP is 1 it is not. (Wait time: 1 to 2 ms.)
CTP must be set to 1 at least 4 ms before CTE is set to 1.
The input sensitivity can be reduced by setting CTC to 1. (Sensitivity: 10 to 30 mV rms)
(4)
ULD, DT0,
DT1, IL0, IL1
(6)
(5)
CTS0,
CTS1, CTE,
GT0, GT1
*
CTP, CTC
OUT5, I/O1, I/O2, I/O5
H/I6, L/I7
ULD
DT1
DT0
DO
I/O5
0
0
0
Unlock flag
0
0
1
Open
End-UC flag
*
1
.
OUT5 flag
*
2
.
0
1
0
0
1
1
IN. See table 7.
1
0
0
Open
1
0
1
Open
Unlock flag
*
2
.
1
1
0
End-UC flag
1
1
1
IN. See table 7.
IL1
IL0
IN state
0
0
Open
0
1
I1 input
1
0
I2 input
1
1
DO goes low when I1 changes.
CTS1
CTS0
Input
Measurement
mode
1
×
1
HCTR
Frequency
0
LCTR
Frequency
0
0
LCTR
Period
Frequency measurement
Period measurement
GT1
GT0
Measurement
duration (ms)
Wait time (ms)
Cycles
0
0
4
3 to 4
1
0
1
8
1
0
32
7 to 8
2
1
1
64
Continued on next page.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC72146M | 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning |
| LC72146MA-AH | 功能描述:時(shí)鐘合成器/抖動(dòng)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(chēng):未知廠家 功能描述: |
| LC72147V | 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in Car Audio Systems |
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