5 filter control (address 05h), 1 interpolation filter select (filt_sel), 6 invert control (address 06h) – Cirrus Logic CS4385 User Manual

Page 41: 1 invert signal polarity (inv_xx), 7 group control (address 07h), 1 mutec pin control (mutec), 1 interpolation filter select (filt_sel), 1 invert signal polarity (inv_xx), 1 mutec pin control (mutec), Cs4385

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DS671F2

41

CS4385

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 28

to

51

.

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

.

7

6

5

4

3

2

1

0

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

Reserved

FILT_SEL

0

0

0

0

0

0

0

0

7

6

5

4

3

2

1

0

INV_B4

INV_A4

INV_B3

INV_A3

INV_B2

INV_A2

INV_B1

INV_A1

0

0

0

0

0

0

0

0

7

6

5

4

3

2

1

0

Reserved

MUTEC

Reserved

P1_A=B

P2_A=B

P3_A=B

P4_A=B

SNGLVOL

0

0

0

0

0

0

0

0

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