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CS4237B Datasheet(PDF) 31 Page - Cirrus Logic

Part # CS4237B
Description  CrystalClear Advanced Audio System with 3D Sound
Download  114 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS4237B Datasheet(HTML) 31 Page - Cirrus Logic

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background image
bit5
bit4
bit3
bit2
bit1
bit0
WG5-0 (X16,17)
LBA5-0, PA5-0, SPA5-0, FMA5-0
0
0
0
0
0
0
0
12.0 dB
0.0 dB
1
0
0
0
0
0
1
10.5 dB
-1.5 dB
2
0
00
010
9.0 dB
-3.0 dB
3
0
00
011
7.5 dB
-4.5 dB
.
.
..
..
.
-
.
8
0
0
1
0
0
0
0 dB
-12.0 dB
.
.
..
..
.
-
.
.
.
..
..
.
-
.
60
1
1
1
1
0
0
-78.0 dB
-90.0 dB
61
1
1
1
1
0
1
-79.5 dB
-91.5 dB
62
1
1
1
1
1
0
-81.0 dB
-93.0 dB
63
1
1
1
1
1
1
-82.5 dB
-94.5 dB
Table 6. Wavetable, Loopback, PC Wave, DSP Serial, & FM
bit3
bit2
bit1
bit0
Input Gain
(I0,I1)
Mono In
(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
LIS0
LEVEL
RIS1
RIS0
00
0 dB
01
-6 dB
10
-12 dB
11
-18 dB
Table 8. Input Mixer Attenuation
CFS
21
0
C2SL = 0
C2SL=1
0
0
0
8.0 kHz
5.51 kHz
0
0
1
16.0 kHz
11.025 kHz
0
1
0
27.42 kHz
18.9 kHz
0
1
1
32.0 kHz
22.05 kHz
1
0
0
N/A
37.8 kHz
1
0
1
N/A
44.1 kHz
1
1
0
48.0 kHz
33.075 kHz
1
1
1
9.6 kHz
6.62 kHz
Table 9. Sample Frequencies
G4
G3
G2
G1
G0
Level
0
0
0
0
0
0
12.0 dB
1
0
0
0
0
1
10.5 dB
2
0
0
0
1
0
9.0 dB
3
0
0
0
1
1
7.5 dB
4
0
0
1
0
0
6.0 dB
5
0
0
1
0
1
4.5 dB
6
0
0
1
1
0
3.0 dB
7
0
0
1
1
1
1.5 dB
8
0
1
0
0
0
0.0 dB
9
0
1
001
-1.5 dB
10
0
1
010
-3.0 dB
11
0
1
011
-4.5 dB
12
0
1
100
-6.0 dB
.
.
..
..
.
.
.
..
..
.
.
.
..
..
.
24
1
1
0
0
0
-24.0 dB
25
1
1
0
0
1
-25.5 dB
26
1
1
0
1
0
-27.0 dB
27
1
1
0
1
1
-28.5 dB
28
1
1
1
0
0
-30.0 dB
29
1
1
1
0
1
-31.5 dB
30
1
1
1
1
0
-33.0 dB
31
1
1
1
1
1
-34.5 dB
Table 10. AUX1, AUX2, LINE
FMT1
FMT0 C/L
Data Format
00
0
Linear, 8-bit unsigned
00
1
µ-Law, 8-bit companded
01
0
Linear, 16-bit two’s
complement, Little Endian
01
1
A-Law, 8-bit companded
10
1
ADPCM, 4-bit, IMA compatible
11
0
Linear, 16-bit two’s
complement, Big Endian
Table 11. WSS Codec Data Format
DS213PP4
CS4237B
31


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