2 pgax volume, 1 adcx volume, P 78 – Cirrus Logic CS42L56 User Manual

Page 77: T[7:0, Vol[5:0, Cs42l56

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DS851F2

CS42L56

6.27.2 PGAx Volume

Sets the volume/gain of the Programmable Gain Amplifier (PGA).

Notes:
1. Refer to

Figure 37

and

Figure 38 on page 89

for differential and integral nonlinearity (DNL and INL).

6.28 ADCx Attenuator Control: ADCAATT (Address 20h) & ADCBATT (Address 21h)

6.28.1 ADCx Volume

Sets the volume of the ADC signal.

PGAxVOL[5:0]

Volume

01 1111

+12 dB

...

01 1000

+12 dB

...

00 0001

+0.5 dB

00 0000

0 dB

11 1111

-0.5 dB

...

11 0100

-6.0 dB

...

10 0000

-6.0 dB

Step Size:

0.5 dB

ADCxATT7

ADCxATT6

ADCxATT5

ADCxATT4

ADCxATT3

ADCxATT2

ADCxATT1

ADCxATT0

ADCxATT[7:0]

Volume

0111 1111

0 dB

...

0000 0000

0 dB

1111 1111

-1.0 dB

1111 1110

-2.0 dB

...

1010 0000

-96.0 dB

1001 1111

Mute

...

1000 0000

Mute

Step Size:

1.0 dB