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參數(shù)資料
| 型號(hào)： | BU2616 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | PLL frequency synthesizer for tuners |
| 中文描述： | 鎖相環(huán)頻率合成器的調(diào)諧器 |
| 文件頁(yè)數(shù)： | 5/5頁(yè) |
| 文件大?。?/td> | 108K |
| 代理商： | BU2616 |
External dimensions (Units: mm)
123
Audio ICs
BU2616F
(7)
0: 32ms
1: 64ms
(8)
selected, swallow counter division is possible.
GT: Control of frequency measurement time
SW: If this bit is set to ON while AMIN is
(9)
PL PH: Control of charge pump output
PL = 0, PH = 0 PD1, PD2 go to PLL operation.
PL = 1, PH = 0 PD1, PD2 go to LO level.
PL = 0, PH = 1 PD1, PD2 go to HI level.
PL = 1, PH = 1 PD1, PD2 go to LO level.
(10) TS: Test data (0) is input
Intermediate frequency detection circuit and the
DO output.
(1)
Structure
(2)
When control data CT is set to ON, the counter and the
amp go into operation. When CT equals 0, the amp input
pulldown counter is reset.
How the IF frequency detection circuit operates
(3)
1
Explanation of the DO
When the IF counter is OFF (CT = 0), SD input ap-
pears at the DO.
When the IF counter is set to ON (CT = 1), the con-
trol system keeps it at LO level until the measure-
ment is finished.
After the measurement is finished, it goes to HI level
if it is within the range of input frequency settings,
and is kept at LO level if it is beyond the range of in-
put frequency settings. When CT = 0, it returns to
the conditions described under paragraph
1.
2
3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| BU2616F | 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:PLL frequency synthesizer for tuners |
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| BU2618FV | 制造商:ROHM 制造商全稱(chēng):Rohm 功能描述:PLL frequency synthesizer for tuners |
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