Rainbow Electronics MAX5406 - Manual (Page 17)

MAX5406
Audio Processor with Pushbutton Interface
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response curve be desired. A combination of internal
resistors and external capacitors determine the
response of the circuit.
Use the following equations to calculate the external
capacitor values for the desired 3dB frequencies:
where R BPOT , nominally 116k Ω, is the bass poten-
tiometer (see Figure 7).
where R T is nominally 3.5k
Ω (see Figure 7).
f
R C
TREBLE dB
T T
( )
_
3
1
2
=
Ч Ч π
f
R C
BASS dB
BPOT B
( )
_
3
1
2
=
Ч Ч π
L R
PRESS VOLUP
TWICE
PRESS VOLDN
ONCE
BALANCE SEPARATION
MAINTAINED
L R L R
Figure 4. Basic Volume-Control Operation
1dB PER STEP
L R
L R L R
VOLUME LEVEL IS SET
1dB PER STEP
PRESS BALR
ONCE
1dB PER STEP
PRESS BALR
ONCE
Figure 5. Basic Balance-Control Operation
1dB PER STEP
2dB PER STEP
FROM 6a
L R
L R L R
L R L R
L R
VOLUME LEVEL IS AT MAXIMUM
2dB PER STEP
PRESS VOLDN
ONCE
2dB PER STEP
PRESS VOLDN
ONCE
BALANCE COMPENSATION ENDS
TO 6b
2dB PER STEP
PRESS BALL
AGAIN
1dB PER STEP
PRESS BALL
ONCE
b)
a)
Figure 6. Volume and Balance Interaction