CDB42L55 Cirrus Logic Inc, CDB42L55 Datasheet - Page 61

• Manufacturer Part Number: CDB42L55
• Description: Eval Bd Ultra Low Power Stereo Codec
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42L55

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42L55
• Primary Attributes: 2 Stereo Analog Inputs, Stereo Line and Headphone Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: GUI, USB, RS232, I2C Interfaces, USB or External or Battery Power Supply
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1506; CDB-42L55

DS773F1
6.26.2 Limiter Cushion Threshold
6.27
6.27.1 Peak Detect and Limiter
6.27.2 Peak Signal Limit All Channels
LIMIT
7
Limiter Control, Release Rate (Address 22h)
Sets the minimum level at which to disengage the Limiter’s attenuation at the release rate (LIMRRATE -
“Limiter Release Rate” on page
Note:
Configures the peak detect and limiter circuitry.
Sets how channels are attenuated when the limiter is enabled.
CUSH[2:0]
000
001
010
011
100
101
110
111
Application:
LIMIT
0
1
Application:
LIMIT_ALL
0
1
Application:
LIMIT_ALL
This setting is usually set slightly below the LMAX threshold.
6
Threshold Setting
0 dB
-3 dB
-6 dB
-9 dB
-12 dB
-18 dB
-24 dB
-30 dB
Limiter Status
Disabled
Enabled
Limiter action:
Apply the necessary attenuation on a specific channel only when the signal amplitudes on that specific chan-
nel rises above LMAX.
Remove attenuation on a specific channel only when the signal amplitude on that specific channel falls below
CUSH.
Apply the necessary attenuation on BOTH channels when the signal amplitudes on any ONE channel rises
above LMAX.
Remove attenuation on BOTH channels only when the signal amplitude on BOTH channels fall below CUSH.
“Limiter” on page 32
“Limiter” on page 32
“Limiter” on page 32
LIMRRATE5
5
62) until levels lie between the LMAX and CUSH thresholds.
LIMRRATE4
4
LIMRRATE3
3
LIMRRATE2
2
LIMRRATE1
1
CS42L55
LIMRRATE0
0
61