WM8994 Datasheet, PDF (318/359 Pages) Wolfson Microelectronics plc – Multi-Channel Audio Hub CODEC for Smartphones

WM8994
REGISTER
ADDRESS
R1347
(0543h)
AIF2 DRC
(4)
BIT
LABEL
DEFAULT
DESCRIPTION
10:5 AIF2DRC_KNE 00_0000 AIF2 DRC Input signal level at the Compressor ‘Knee’.
E_IP [5:0]
000000 = 0dB
000001 = -0.75dB
000010 = -1.5dB
… (-0.75dB steps)
111100 = -45dB
111101 = Reserved
11111X = Reserved
4:0 AIF2DRC_KNE 0_0000 AIF2 DRC Output signal at the Compressor ‘Knee’.
E_OP [4:0]
00000 = 0dB
00001 = -0.75dB
00010 = -1.5dB
… (-0.75dB steps)
11110 = -22.5dB
11111 = Reserved
Register 0543h AIF2 DRC (4)
Production Data
REFER TO
REGISTER BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
ADDRESS
R1348
(0544h)
AIF2 DRC
(5)
9:5 AIF2DRC_KNE 0_0000 AIF2 DRC Input signal level at the Noise Gate threshold
E2_IP [4:0]
‘Knee2’.
00000 = -36dB
00001 = -37.5dB
00010 = -39dB
… (-1.5dB steps)
11110 = -81dB
11111 = -82.5dB
Only applicable when AIF2DRC_NG_ENA = 1.
4:0 AIF2DRC_KNE 0_0000 AIF2 DRC Output signal at the Noise Gate threshold
E2_OP [4:0]
‘Knee2’.
00000 = -30dB
00001 = -31.5dB
00010 = -33dB
… (-1.5dB steps)
11110 = -75dB
11111 = -76.5dB
Only applicable when AIF2DRC_KNEE2_OP_ENA = 1.
Register 0544h AIF2 DRC (5)
REGISTER
ADDRESS
R1408
(0580h)
AIF2 EQ
Gains (1)
BIT
15:11
10:6
5:1
0
LABEL
DEFAULT
DESCRIPTION
AIF2DAC_EQ_
B1_GAIN [4:0]
AIF2DAC_EQ_
B2_GAIN [4:0]
AIF2DAC_EQ_
B3_GAIN [4:0]
AIF2DAC_EQ_
ENA
0_1100
0_1100
0_1100
0
AIF2 EQ Band 1 Gain
-12dB to +12dB in 1dB steps
AIF2EQ Band 2 Gain
-12dB to +12dB in 1dB steps
AIF2EQ Band 3 Gain
-12dB to +12dB in 1dB steps
Enable EQ in AIF2DAC playback path
0 = Disabled
1 = Enabled
Register 0580h AIF2 EQ Gains (1)
w
REFER TO
PD, April 2012, Rev 4.4
318