CS42438 datasheet(49/64 Pages) CIRRUS

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DS646PP2

7.10

DAC CHANNEL INVERT (ADDRESS 10H)

7.10.1 INVERT SIGNAL POLARITY (INV_AOUTX)

Default = 0

0 - Disabled

1 - Enabled

Function:

When enabled, these bits will invert the signal polarity of their respective channels.

7.11

AINX VOLUME CONTROL (ADDRESS 11H-16H)

7.11.1 AINX VOLUME CONTROL (AINX_VOL[7:0])

Default = 00h

Function:

The level of AIN1 - AIN6 can be adjusted in 0.5 dB increments as dictated by the ADC Soft and Zero

Cross bits (ADC_SZC[1:0]) from +24 to -64 dB. Levels are decoded in two’s complement, as shown

in Table 9.

7.12

ADC CHANNEL INVERT (ADDRESS 17H)

7.12.1 INVERT SIGNAL POLARITY (INV_AINX)

Default = 0

0 - Disabled

1 - Enabled

654

INV_AOUT8

INV_AOUT7

INV_AOUT6

INV_AOUT5

INV_AOUT4

INV_AOUT3

INV_AOUT2

INV_AOUT1

654

AINx_VOL7

AINx_VOL6

AINx_VOL5

AINx_VOL4

AINx_VOL3

AINx_VOL2

AINx_VOL1

AINx_VOL0

Binary Code

Volume Setting

0111 1111

+24 dB

···

0011 0000

+24 dB

···

0000 0000

0 dB

1111 1111

-0.5 dB

1111 1110

-1 dB

···

1000 0000

-64 dB

Table 9. Example AIN Volume Settings

654

Reserved

INV_AIN6

INV_AIN5

INV_AIN4

INV_AIN3

INV_AIN2

INV_AIN1

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