CS4525 datasheet(75/98 Pages) CIRRUS

75 / 98 page

DS726PP1

CS4525

9.5.4

Foldback Attack Delay (AttackDly[1:0])

Default = 01

Function:

Controls the foldback attack delay. See “Thermal Foldback” on page 40 for more information.

9.5.5

Enable Foldback Floor (EnFloor)

Default = 0

Function:

Controls the foldback attenuation floor feature. See “Thermal Foldback” on page 40 for more information.

9.5.6

Ramp Speed (RmpSpd[1:0])

Default = 11

Function:

Controls the PWM output ramp speed. See “PWM Popguard Transient Control” on page 45 for more in-

formation.

9.6

Mixer / Pre-Scale Configuration (Address 06h)

9.6.1

Pre-Scale Attenuation (PreScale[2:0])

Default = 000

Function:

Controls the pre-scale attenuation level. See “Pre-Scaler” on page 30 for more information.

AttackDly[1:0] Setting

Foldback Attack Time

00 ........................................Approximately 0.5 seconds.

01 ........................................Approximately 1.0 seconds.

10 ........................................Approximately 1.5 seconds.

11.........................................Approximately 2.0 seconds.

EnFloor Setting

Attenuation Floor

0 ..........................................No foldback attenuation floor imposed.

1 ..........................................Maximum foldback attenuation limited to -30 dB.

RmpSpd[1:0] Setting

Ramp Speed

00 ........................................Fastest Ramp Speed

10 ........................................Slowest Ramp Speed

11.........................................Immediate. PWM Popguard Disabled.

432

PreScale2

PreScale1

PreScale0

Reserved

RChMix1

RChMix0

LChMix1

LChMix0

PreScale[2:0] Setting

Pre-Scale Attenuation Setting

000 ......................................No pre-scale attenuation applied.

001 ......................................-2.0 dB

010 ......................................-4.0 dB

......................................

100 ......................................-8.0 dB

......................................

111 .......................................-14.0 dB

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