Rainbow Electronics MAX5440 - Manual (Page 10)

MAX5440
Stereo Volume Control
with Rotary Encoder Interface
10 ______________________________________________________________________________________
01
00
USER ROTATES ENCODER
t WS
t HPW
t LPW
V H_
V L_
SWITCH
CONTACT
IS BOUNCING
SWITCH CONTACT
IS BOUNCING
SWITCH
CONTACT
IS STABLE
INPUT ACCEPTED
WAIT FOR FIRST
ZERO CROSSING, t
WS
DEBOUNCE BY WAITING
FOR STABLE LOW,
t LPW
DEBOUNCE BY WAITING
FOR STABLE HIGH,
t HPW
WIPER MOVES HERE
WIPER MOTION
2dB STEPS
Figure 4a. Wiper Transition Timing Diagram—Suppression Circuitry Active