STA308A STMicroelectronics, STA308A Datasheet - Page 46

• Manufacturer Part Number: STA308A
• Description: IC AUDIO PROCESSOR DGTL 64-TQFP
• Manufacturer: STMicroelectronics
• Series: DDX™r
• Type: Audio Processorr

Specifications of STA308A

• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Lead Free Status / Rohs Status: Compliant

Registers
46/63
In AC mode the attack and release thresholds are set relative to full-scale. In DRC mode the
attack threshold is set relative to the maximum volume setting of the channels mapped to
that limiter and the release threshold is set relative to the maximum volume setting plus the
attack threshold.
Figure 7.
00
01
10
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Basic limiter and volume flow diagram
Gain/Volume
Input
CnLS[1,0]
LnA[3:0]
Gain
Attenuation
Limiter
Channel has limiting disabled
Channel is mapped to limiter #1
Channel is mapped to limiter #2
3.1584 (fast)
2.7072
2.2560
1.8048
1.3536
0.9024
0.4512
0.2256
0.1504
0.1123
0.0902
0.0752
0.0645
0.0564
0.0501
0.0451 (slow)
Channel limiter mapping
Attack rate (dB/ms)
Saturation
RMS
Output
STA308A