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参数资料
| 型号： | 5962-9098701QEA |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 10 MHz, CDIP16 |
| 封装： | CERAMIC, DIP-16 |
| 文件页数： | 4/9页 |
| 文件大小： | 595K |
| 代理商： | 5962-9098701QEA |
UC1633
UC2633
UC3633
Determining the Oscillator Frequency
The frequency at the oscillator is determined by the de-
sired RPM of the motor, the divide ratio selected, the
number of poles in the motor, and the state of the double
edge select pin.
fOSC(Hz) = (Divide Ratio)
(Motor RPM) (1/60 SEC/MIN)
(No. of Rotor Poles/2)
(x 2 if Pin 5 Low)
The resulting reference frequency appearing at the phase
detector inputs is equal to the oscillator frequency divided
by the selected divide ratio. If the double edge option is
used, (Pin 5 low), the frequency of the sense amplifier in-
put signal is doubled by responding to both the rising and
falling edges of the input signal. Using this option, the loop
reference frequency can be doubled for a given motor
RPM.
APPLICATION AND OPERATING INFORMATION
Recommended Oscillator Configuration Using AT Cut Quartz Crystal
External Reference Frequency Input
Method for Deriving Rotation Feedback Signal from Analog Hall Effect Device
*This signal may require filtering if chopped mode drive scheme is used.
4
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