.. exhibit a positive temperature coefficient in one temperature range and negative coefficient in another. One example is the frequency drift of XT-cut crystals, which have a parabolic curve with the center frequency typically specified at ...
.. common technique for implementing PWM involves comparing a triangular waveform of fixed amplitude and frequency with a variable dc voltage level. Although this approach results in a PWM signal of precise frequency ...
.. R S and a 50 nF C X to ground. This capacitor C X will interact with the LTC2063 circuit, resulting in some peaking in the frequency response. This peaking can be used to extend the flat bandwidth of the generator, in much the same way ...
.. with 10-15% tolerance. Timing capacitors C1-C2 are installed in the header socket (Figure 3), allowing almost the full frequency range of the op amp to be tested if necessary. The capacitors pairs to cover the range of 14 Hz-140 kHz ...
.. the response of the design. Input sweeps can be composed of discrete input frequencies or a swept sine. Extremely low frequency sine waves (below 10 Hz) are difficult to produce cleanly. A processor, DAC, and some complex, precise ...
.. design idea (DI) does exactly that by using asynchronous RS-232 to power and count pulses from a simple 10-kHz voltage-to-frequency converter (VFC). Getting only one bit of info from each 10-bit serial character may seem inefficient ...
.. single supply voltage, setting the bias halfway that of the supply voltage with voltage divider R3 and R8. The oscillation frequency is chosen by means of C1 and R1. The output of the oscillator is a symmetric square wave. The role of ...
.. 1986, famed analog innovator Jim Williams, in “Designs for High Performance Voltage-to-Frequency Converters” ( Reference 1 ) published his 100 MHz “King Kong” VFC. If anyone’s ...
.. conversion based on the classic combination of a voltage-to-frequency converter (VFC) with a counter has been around for (many) decades, mainly because it has some durable ...
.. nothing critical about the suggested 200-Hz PWM cycle. You need to change only R 1 and C 1 to accommodate any convenient frequency. How closely the R 1 C 1 time constant matches the PWM-cycle time determines the settling time of the A ...