The mark-space relationship or active cycle of this oscillator can be programmed by the values of resistors R1 and R2. The capacitor determines the basic frequency of the circuit and can have values in the indicated range. The circuit can use inverters or connected NAND or NOR gates as inverters. The circuit is from Newton C. Braga's CMOS Sourcebook, published in the United States.
| Clique na imagem para ampliar |
