CDB4384 datasheet(39/52 Pages) CIRRUS

39 / 52 page

DS620F1

CS4384

6.5

Filter Control (Address 05h)

6.5.1

Interpolation Filter Select (FILT_SEL)

Function:

When set to 0 (default), the Interpolation Filter has a fast roll off.

When set to 1, the Interpolation Filter has a slow roll off.

The specifications for each filter can be found in the Analog characteristics table, and response plots can

be found in Figures 26 to 49.

6.6

Invert Control (Address 06h)

6.6.1

Invert Signal Polarity (INV_xx)

Function:

When set to 1, this bit inverts the signal polarity of channel xx.

When set to 0 (default), this function is disabled.

6.7

Group Control (Address 07h)

6.7.1

Mutec Pin Control (MUTEC)

Default = 0

0 - Two Mute control signals

1 - Single mute control signal on MUTEC1

Function:

Selects how the internal mute signals are routed to the MUTEC1 and MUTEC234 pins. When set to ‘0’,

a logical AND of DAC pair 1 mute control signals are output on MUTEC1 and a logical AND of the mute

control signals of DAC pairs 2, 3, and 4 are output on MUTEC234. When set to ‘1’, a logical AND of all

DAC pair mute control signals is output on the MUTEC1 pin, MUTEC234 will remain static. For more in-

formation on the use of the mute control function see the MUTEC1 and MUTEC234 pins in Section 4.11.

6.7.2

Channel A Volume = Channel B Volume (Px_A=B)

Default = 0

0 - Disabled

1 - Enabled

Function:

432

Reserved

FILT_SEL

000

432

INV_B4

INV_A4

INV_B3

INV_A3

INV_B2

INV_A2

INV_B1

INV_A1

000

432

Reserved

MUTEC

Reserved

P1_A=B

P2_A=B

P3_A=B

P4_A=B

SNGLVOL

000

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