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參數資料
| 型號： | WF5027CR-4 |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | Crystal Oscillator Module ICs |
| 中文描述： | 晶體振蕩器模塊集成電路 |
| 文件頁數： | 13/21頁 |
| 文件大小： | 815K |
| 代理商： | WF5027CR-4 |
WF5027 series
SEIKO NPC CORPORATION —13
FUNCTIONAL DESCRIPTION
Standby Function
When INHN goes LOW, the Q output becomes high impedance.
Power-saving Pull-up Resistor
The INHN pin pull-up resistance R
UP1
or R
UP2
changes in response to the input level (HIGH or LOW). When
INHN is tied LOW level, the pull-up resistance is large (R
UP1
), reducing the current consumed by the resis-
tance. When INHN is left open circuit, the pull-up resistance is small (R
UP2
), which increases the input suscep-
tibility to external noise. However, the pull-up resistance ties the INHN pin HIGH level to prevent external
noise from unexpectedly stopping the output.
Oscillation Detector Function
The WF5027 series also feature an oscillation detector circuit. This circuit functions to disable the outputs until
the oscillator circuit starts and oscillation becomes stable. This alleviates the danger of abnormal oscillator out-
put at oscillator start-up when power is applied or when INHN is switched.
INHN
Q
Oscillator
HIGH (or open)
Frequency output
Normal operation
LOW
High impedance
Stopped
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相關代理商/技術參數 |
參數描述 |
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| WF5027CS-4 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Crystal Oscillator Module ICs |
| WF5027CT-4 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Crystal Oscillator Module ICs |
| WF5027CV-4 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Crystal Oscillator Module ICs |
| WF5027CW-4 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:Crystal Oscillator Module ICs |
| WF5041A1A-4 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:High-stability Crystal Oscillator IC with Frequency Adjustment Function |
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