A sound generator circuit configured for a handheld computer is disclosed.
A method of producing a tone with a sound generator and handheld computer
is also disclosed. The sound generator circuit includes a low pass filter
having an input and an output. The input is coupled to a pulse width
modulated (PWM) signal line. The sound generator circuit also includes a
switching circuit coupled to the output of the low pass filter and being
controlled by the output of the low pass filter. Further, the sound
generator circuit includes a sound generator having a first and a second
terminal. Further still, the sound generator circuit can include a
high-pass filter coupled across the first and second terminals.
