Rainbow Electronics MAX5440 - Manual (Page 15)

MAX5440
Stereo Volume Control
with Rotary Encoder Interface
Functional Diagram
TIMING AND CONTROL
DEBOUNCE DEBOUNCE DEBOUNCE DEBOUNCE DEBOUNCE
POSITION COUNTER POSITION COUNTER
UP/DOWN UP/DOWN
MODEIND
SHDN V LOGIC V DD V SS
H0
W0
L0
GND RENCODEA RENCODEB MUTE
L1
W1
H1
MODE
V LOGIC
0
1
2
3
4
28
30
31
29
0
1
2
3
4
28
29
30
31
MUTE MUTE
BIAS GENERATOR
MIDBIAS
LEDIND0
LEDIND1
LEDIND2
LEDIND3
LEDIND4
45k Ω 45k Ω 45k Ω 45k Ω
CLICK-AND-POP
SUPPRESSION
CIRCUITRY
CLICK-AND-POP
SUPPRESSION
CIRCUITRY
BIAS
MAX5440
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