CRD42L52(2006) View Datasheet(PDF) - Cirrus Logic

Part Name

Description

Manufacturer

CRD42L52
(Rev.:2006)

Low Power, Stereo CODEC w/Headphone & Speaker Amps

Cirrus Logic 

CS42L52

6.16.3

PGAx Volume

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

PGAxVOL[5:0]

01 1111

...

01 1000

...

00 0001

00 0000

11 1111

...

10 1000

...

10 0000

Step Size:

Volume

12 dB

...

12 dB

...

+0.5 dB

0 dB

-0.5 dB

...

-6.0 dB

...

-6.0 dB

0.5 dB

Note: The PGAxVOL bits are ignored when the PASSTHRUx bit (“Passthru Analog” on page 52) is en-

abled.

6.17 Passthru x Volume: PASSAVOL (Address 14h) & PASSBVOL (Address 15h)

7

6

5

4

3

2

1

0

PASSxVOL7 PASSxVOL6 PASSxVOL5 PASSxVOL4 PASSxVOL3 PASSxVOL2 PASSxVOL1 PASSxVOL0

6.17.1 Passthru x Volume

Sets the volume/gain of the signal routed from the PGA to the headphone/line output.

PASSxVOL[7:0]

0111 1111

...

0001 1000

...

0000 0001

0000 0000

11111 1111

...

1000 1000

...

1000 0000

Step Size:

Application:

Gain

12 dB

...

12 dB

...

+0.5 dB

0 dB

-0.5 dB

...

-60.0 dB

...

-60.0 dB

0.5 dB (approximate)

“Analog In to Analog Out Passthru” on page 32

Notes:

1. This register is ignored when the PASSTHRUx bit (“Passthru Analog” on page 52) is disabled.

2. The step size may deviate from 0.5 dB at settings below -40 dB. Code settings 0x95, 0xA1, 0xAD and

0xB9 are not guaranteed to be monotonic.

56

DS680A1

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