CS4525 데이터 시트보기 (PDF) - Cirrus Logic

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CS4525

30 W Digital Audio Amplifier with Integrated ADC

Cirrus Logic 

CS4525

function is affected, similar to attenuation changes, by the soft and zero cross bits (SZCMode[1:0]). See

“Volume and Muting Control” on page 36 for more information.

MuteChX Setting

Channel X PWM Mute State

0 ..........................................Channel X PWM outputs un-muted.

1 ..........................................Channel X PWM outputs muted.

9.15.6 Sub Channel Mute (MuteSub)

Default = 0

Function:

The sub channel’s power PWM, logic-level PWM, and auxiliary serial data outputs will enter a mute state

when enabled. The muting function is affected, similar to attenuation changes, by the soft and zero cross

bits (SZCMode[1:0]). See “Volume and Muting Control” on page 36 for more information.

MuteSub Setting

Sub Channel PWM Mute State

0 ..........................................Sub channel PWM outputs un-muted.

1 ..........................................Sub channel PWM outputs muted.

9.16 Limiter Configuration 1 (Address 5Ch)

7

Max2

6

Max1

5

Max0

4

Min2

3

Min1

2

Min0

1

LimitAll

0

EnLimiter

9.16.1 Maximum Threshold (Max[2:0])

Default = 000

Function:

Sets the maximum level, below full scale, at which to limit and attenuate the output signal at the limiter

attack rate.

Max[2:0] Setting

Maximum Threshold Setting

000 ......................................0.0 dB

001 ......................................-3.0 dB

010 ......................................-6.0 dB

011.......................................-9.0 dB

100 ......................................-12.0 dB

101 ......................................-18.0 dB

110.......................................-24.0 dB

111 .......................................-30.0 dB

9.16.2 Minimum Threshold (Min[2:0])

Default = 000

Function:

Sets a minimum level below full scale at which the limiter will begin to release its applied attenuation.

Min[2:0] Setting

Minimum Threshold Setting

000 ......................................0.0 dB

001 ......................................-3.0 dB

010 ......................................-6.0 dB

011.......................................-9.0 dB

100 ......................................-12.0 dB

101 ......................................-18.0 dB

110.......................................-24.0 dB

111 .......................................-30.0 dB

DS726PP1

85

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