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參數(shù)資料
| 型號： | MC145193F |
| 廠商： | MOTOROLA INC |
| 元件分類： | XO, clock |
| 英文描述： | 1.1 GHZ PLL FREQUENCY SYNTHESIZER |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO20 |
| 封裝： | PLASTIC, SO-20 |
| 文件頁數(shù)： | 16/24頁 |
| 文件大?。?/td> | 240K |
| 代理商： | MC145193F |
MC145193
16
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA
NOTE:
The PDout either sources or sinks current during out–of–lock conditions. When locked in phase and frequency, the output is in the floating condition and
the voltage at that pin is determned by the low–pass filter capacitor. PDout,
φ
R, and
φ
V are shown with the polarity bit (POL) = low; see Figure 14 for POL.
fR
Reference
REFin
÷
R
fV
Feedback
fin
÷
(N x 64 + A)
PDout
φ
R
φ
V
LD
VH
VL
Sourcing Current
Float
Sinking Current
VH
VL
VH
VL
VH
VL
VL
VH
*
VH = High voltage level
VL = Low voltage level
*At this point, when both fR and fV are in phase, the output source and sink circuits are turned on for a short interval.
Figure 17. Phase/Frequency Detectors and Lock
Detector Output Waveforms
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