CS4237B Datasheet, PDF (31/114 Pages) Cirrus Logic – CrystalClear Advanced Audio System with 3D Sound

CS4237B
bit5 bit4 bit3 bit2 bit1 bit0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
2
0
0
0
0
1
0
3
0
0
0
0
1
1
.
.
.
.
.
.
.
8
0
0
1
0
0
0
.
.
.
.
.
.
.
.
.
.
.
.
.
.
60 1
1
1
1
0
0
61 1
1
1
1
0
1
62 1
1
1
1
1
0
63 1
1
1
1
1
1
WG5-0 (X16,17)
12.0 dB
10.5 dB
9.0 dB
7.5 dB
-
0 dB
-
-
-78.0 dB
-79.5 dB
-81.0 dB
-82.5 dB
LBA5-0, PA5-0, SPA5-0, FMA5-0
0.0 dB
-1.5 dB
-3.0 dB
-4.5 dB
.
-12.0 dB
.
.
-90.0 dB
-91.5 dB
-93.0 dB
-94.5 dB
Table 6. Wavetable, Loopback, PC Wave, DSP Serial, & FM
bit3 bit2 bit1 bit0 Input Gain Mono In
(I0,I1)
(I26)
0
0
0
0
0
0.0 dB
0.0 dB
1
0
0
0
1
1.5 dB
-3.0 dB
2
0
0
1
0
3.0 dB
-6.0 dB
3
0
0
1
1
4.5 dB
-9.0 dB
.
.
.
.
.
-
.
.
.
.
.
.
-
.
.
.
.
.
.
-
.
12 1
1
0
0
18.0 dB
-36.0 dB
13 1
1
0
1
19.5 dB
-39.0 dB
14 1
1
1
0
21.0 dB
-42.0 dB
15 1
1
1
1
22.5 dB
-45.0 dB
Table 7. Input ADC Gain and Mono In Levels
LIS1
RIS1
0
0
1
1
LIS0
RIS0
0
1
0
1
LEVEL
0 dB
-6 dB
-12 dB
-18 dB
G4 G3 G2 G1 G0
0
0
0
0
0
0
1
0
0
0
0
1
2
0
0
0
1
0
3
0
0
0
1
1
4
0
0
1
0
0
5
0
0
1
0
1
6
0
0
1
1
0
7
0
0
1
1
1
8
0
1
0
0
0
9
0
1
0
0
1
10
0
1
0
1
0
11
0
1
0
1
1
12
0
1
1
0
0
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
24
1
1
0
0
0
25
1
1
0
0
1
26
1
1
0
1
0
27
1
1
0
1
1
28
1
1
1
0
0
29
1
1
1
0
1
30
1
1
1
1
0
31
1
1
1
1
1
Table 8. Input Mixer Attenuation
Table 10. AUX1, AUX2, LINE
Level
12.0 dB
10.5 dB
9.0 dB
7.5 dB
6.0 dB
4.5 dB
3.0 dB
1.5 dB
0.0 dB
-1.5 dB
-3.0 dB
-4.5 dB
-6.0 dB
.
.
.
-24.0 dB
-25.5 dB
-27.0 dB
-28.5 dB
-30.0 dB
-31.5 dB
-33.0 dB
-34.5 dB
CFS
21 0
00 0
00 1
01 0
01 1
10 0
10 1
11 0
11 1
C2SL = 0
8.0 kHz
16.0 kHz
27.42 kHz
32.0 kHz
N/A
N/A
48.0 kHz
9.6 kHz
C2SL=1
5.51 kHz
11.025 kHz
18.9 kHz
22.05 kHz
37.8 kHz
44.1 kHz
33.075 kHz
6.62 kHz
Table 9. Sample Frequencies
FMT1
0
0
0
0
1
1
FMT0 C/L
Data Format
0 0 _{Linear, 8-bit unsigned}
0 1 _{µ-Law, 8-bit companded}
1 0 _{Linear, 16-bit two’s}
complement, Little Endian
1 1 _{A-Law, 8-bit companded}
0 1 _{ADPCM, 4-bit, IMA compatible}
1 0 _{Linear, 16-bit two’s}
complement, Big Endian
Table 11. WSS Codec Data Format
DS213PP4
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