Digital-to-analog converter and method thereof

Details Digital-to-analog converter and method thereof Digital-to-analog converter and method thereof

2007-04-23

2009-02-17

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S150000

Reexamination Certificate

active

07492297

ABSTRACT:
A digitally controlled analog circuit comprises a finite state machine configured for receiving a digital input word and generating at least two digital codes in a manner determined by a state of the finite state machine. The digital codes are decoded into respective sets of binary data. The sets of binary data control respective switched-circuit arrays to generate an analog output corresponding to the digital input word. To establish a monotonic function between the digital input word and the analog output during steady state operations, the finite state machine switches states when a wrap-around condition is detected for one of the digital codes. The finite state machine uses different sets of equations in different states to derive the digital codes.

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