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參數(shù)資料
| 型號： | 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） |
| 文件頁數(shù)： | 18/21頁 |
| 文件大小： | 356K |
| 代理商： | LC72146 |
Figure 11
Figure 12
2. FMIN, AMIN, HCTR and LCTR
These inputs should each be capacitively coupled using a 50 to 100 pF capacitor. Also, these capacitors should
be mounted as close as possible to their respective inputs.
3. IF counting using HCTR or LCTR
The LC72146 can perform IF count tuning when connected to an SD (station detector) signal from an IF IC.
IF counting should start when the SD signal becomes active.
Note on IF counting: The SD (station detect) signal must be used in conjunction with IF counting.
When using the general-purpose counter for IF counting, be sure to determine whether or not there is an SD
signal from the IF IC. The IF counter buffer should be turned on and IF counting performed only if there is an
SD signal. Autosearch techniques that use only the IF counter are not recommended, since it is possible for IF
buffer leakage output to cause incorrect stops at points where there is no station.
4. Using the DO pin
In modes other than data output mode, the DO pin is also used for counter completion, unlock detection, and for
checking for changes in the input pin. (In these cases the DO pin will change from the high to the low level.)
The state of the input pin can be input to the controller directly through the DO pin.
Pin States at Power On and Reset
No. 4922-18/21
LC72146, 72146M
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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: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:未知廠家 功能描述: |
| LC72147V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in Car Audio Systems |
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