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.
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.
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.
EnFloor Setting
Attenuation Floor
0 ..........................................No foldback attenuation floor imposed.
1 ..........................................Maximum foldback attenuation limited to -30 dB.
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.
RmpSpd[1:0] Setting
Ramp Speed
00 ........................................Fastest Ramp Speed
10 ........................................Slowest Ramp Speed
11.........................................Immediate. PWM Popguard Disabled.
9.6
Mixer / Pre-Scale Configuration (Address 06h)
7
6
5
4
3
2
1
0
PreScale2
PreScale1
PreScale0
Reserved
RChMix1
RChMix0
LChMix1
LChMix0
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.
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
DS726PP1
75
CIRRUS [ CIRRUS LOGIC ]
