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Want to create a ultrasound fsk modulator ( sine wave ) with fo at 20KHz and f1 at 20.5KHz
First, we used XR2006, but its frequency accuacy is only 1%, which is not good enough for our project,
Then, we changed to use a avr mega microntroller, but its pwm output is too slow.
Now we start to...
Want to create a ultrasound fsk modulator ( sine wave ) with fo at 20KHz and f1 at 20.5KHz
First, we used XR2006, but its frequency accuacy is only 1%, which is not good enough for our project,
Then, we changed to use a avr mega microntroller, but its pwm output is too slow.
Now we start to...
We are looking for such a component that a rising edge of a pulse from a remote host can trigger the component in a beacon to generate a wave of only 10bits. The 10bits can be some predetermined ID number.
The solution we figure out is to get the sequence of 10 bits from a 10bits data...
We are looking for such a component that a rising edge of a pulse can trigger the component to generate a wave of only 10bits. The 10bits can be some predetermined ID number.
The solution we figure out is to get the sequence of 10 bits from a 10bits data selector. We connect a clock to a...
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