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74HC4046AD 参数 Datasheet PDF下载

74HC4046AD图片预览
型号: 74HC4046AD
PDF下载: 下载PDF文件 查看货源
内容描述: 锁相回路与VCO [Phase-locked-loop with VCO]
分类和应用: 信号电路锁相环或频率合成电路
文件页数/大小: 34 页 / 470 K
品牌: PHILIPS [ NXP SEMICONDUCTORS ]
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Philips Semiconductors
Product specification
Phase-locked-loop with VCO
74HC/HCT4046A
V
DEMOUT
= V
PC2OUT
=
V
CC
----------
( φ
SIGIN
φ
COMPIN
)
-
π
φ
DEMOUT
= (φ
SIGIN
− φ
COMPIN
).
Fig.6 Phase comparator 1: average output voltage versus input phase difference.
Fig.7 Typical waveforms for PLL using phase comparator 1, loop locked at f
o
.
V
DEMOUT
= V
PC2OUT
=
V
CC
----------
( φ
SIGIN
φ
COMPIN
)
-
φ
DEMOUT
= (φ
SIGIN
− φC
OMPIN
).
Fig.8 Phase comparator 2: average output voltage versus input phase difference.
1997 Nov 25
7