Cirrus-logic CS42L73 Manuale Utente Scaricare il pdf (Pagina 94)

94 DS882F1

CS42L73

6.17 Miscellaneous Input and Output Path Control (Address 13h)

6.17.1 Digital Swap/Mono

Configures transformations on the Input Path A and B channel inputs to the digital mixer. Note that for any

of the transformed cases (‘01’, ‘10’, or ‘11’), both ADC/DMIC A and B must be powered up.

6.17.2 Input Path Channel B=A

Configures independent or ganged volume control of the mic/line input path. If ganging is enabled, chan-

nel B’s volume will be equal to channel A’s, regardless of channel B’s programming (see affected volume

controls listed below).

6.17.3 PREAMP and PGA Channel B=A

Configures independent or ganged volume control of the Preamp and PGA. If ganging is enabled, channel

B’s volume will be equal to channel A’s, regardless of channel B’s programming (see affected analog vol-

ume controls listed below).

76543210

D_SWAP_

MONO_CTL1

D_SWAP_

MONO_CTL0

IPB=A PGAB=A PGASFT ANLGZC DIGSFT ANLGOSFT

D_SWAP_MONO_CTL[1:0] Transform

Digital Mixer Stereo Input Sources

Input A Input B

00 Not transformed Input Path A Input Path B

01 Mono Fanout of Input Path A Input Path A Input Path A

10 Mono Fanout of Input Path B Input Path B Input Path B

11 Swap of A and B Input Path B Input Path A

IPB=A Single Volume Control (Ganging) Affected Volume Controls

0 Disabled;

Independent channel Input Path volume control.

IPBMUTE and BOOSTB (“ADC/Input Path Control

(Address 14h)” on page 97)

IPBDVOL[7:0] (“Input Path x Digital Volume Con-

trol: Channel A (Address 17h) and B (Address

18h)” on page 99)

1 Enabled;

Ganged channel input Path volume control.

Channel A’s Input Path volume control controls both A and B

channels’ volume.

PGAB=A Single Volume Control (Ganging) Affected Analog Volume Controls

0 Disabled;

Independent channel PGA and Preamp volume control.

PREAMPB[1:0] and PGABVOL[5:0] (“Mic PreAmp

and PGA Volume Control: Channel A (Mic 1,

Address 15h) and Channel B (Mic 2, Address

16h)” on page 98)

1 Enabled;

Ganged channel PGA and Preamp volume control.

Channel A’s PGA volume control controls both A and B channels’

PGA volume.

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Cirrus-logic CS42L73 Manuale Utente Pagina 94

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