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The commutator circuit delivers low impedance gate drive to the PN4091 analog switch for both on and off drive conditions. This circuit also achieves near-ideal gate drive conditions for high-frequency signal handling by offering low AC impedance during off...
This circuit can be used to simulate large capacitances using small value components. With the values shown and C = 10 µF, an effective capacitance of 10,000 µF was obtained. The quality (Q) available is limited by the effective...
Q1, Q2, and the associated circuitry constitute a modified astable multivibrator where the loop gain is automatically adjusted to the threshold of oscillation by field effect transistor Q3. Q4 amplifies the signal at the collector of Q2 and isolates...
Figure 99-1(a)'s circuit exhibits a high output impedance due to the small effective capacitance of the series-connected capacitors, resulting in considerable voltage loss from the diode drops. This circuit requires two diodes and two capacitors to generate a DC...
The CF8223A is an FSK (Frequency Shift Keying) decoder and DTMF (Dual Tone Multi-Frequency) receiver integrated circuit (IC). It is manufactured using a CMOS process and includes a power-down feature for low power dissipation operation. The FSK decoder and...
In counter mode, it provides 1 Hz resolution up to 100 MHz. In timer mode, the maximum resolution is 0.0000001 Hz up to 1 Hz. The resolution decreases by one digit for each additional decade. Multiple frequency updates per...
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