Rainbow Electronics MAX5440 User Manual
Page 11
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MAX5440
Stereo Volume Control
with Rotary Encoder Interface
t
HPW
INPUT ACCEPTED
WAIT FOR FIRST
ZERO CROSSING OR
TIMEOUT,
t
WS
2dB STEPS
t
WS
t
LPW
(t
LPW
+
t
WS)
V
H
V
L
DEBOUNCE BY WAITING
FOR STABLE LOW,
t
LPW
DEBOUNCE BY WAITING
FOR STABLE HIGH,
t
HPW
01
00
SWITCH CONTACT
IS BOUNCING
SWITCH
CONTACT
IS STABLE
SWITCH CONTACT
IS BOUNCING
WIPER MOVES HERE
READY TO ACCEPT ANOTHER
ENCODER INPUT SIGNAL
Figure 4b. Wiper Transition Timing Diagram—Timed Out
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