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参数资料
| 型号： | WB1215X |
| 英文描述： | Serial-Input Frequency Synthesizer |
| 中文描述： | 串行输入频率合成器 |
| 文件页数： | 6/9页 |
| 文件大小： | 174K |
| 代理商： | WB1215X |
WB1215
6
Timing Waveforms
Phase Characteristics
Phase Detector Output Waveform
DO Charge Pump Output Current Waveform
VCO Input Voltage
VCO
Output
Frequency
(2)
(1)
Phase Comparator Sense
For normal operation, the FC pins is used to select the output polarity of
the phase detector. Both the internal and any external charge pump are
affected.
Depending upon VCO characteristics, FC pin should be set accordingly:
When VCO characteristics are like (1), FC should be set HIGH or OPEN
CIRCUIT:
When VCO characteristics are like (2), FC should be set LOW.
When FC is set HIGH or OPEN CIRCUIT, Fout pin is set to the reference
divider output, Fr. When FC is set LOW, Fout pin is set to the programmable
divider output Fp.
tw
FR
FP
LD
tw
FR
FP
IDO
Three-state
Do
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