| 摘要 |
A two-step tuning process for resistors (410) and capacitors (420) in an integrated circuit (170) is described. In the first step of the tuning process, an on-chi? adjustable resistor (410) is tuned based on an external resistor to obtain a tuned resistor. The value of the tuned resistor is accurate within a target percentage determined by the external resistor and the design of the adjustable resistor (410). In the second step, an adjustable capacitor (420) is tuned based on the value of the tuned resistor and an accurate clock to obtain a tuned capacitor having an accurate value. The adjustable capacitor (420) may be tuned such that an RC time constant for the tuned resistor and the tune capacitor is accurate within a target percentage determined by the accurate clock and the design of the adjustable capacitor (420). The resistors and capacitors of other circuits on the integrated circuit may be adjusted based on the tuned resistor and the tuned capacitor, respectively. |
