CMX649 View Datasheet(PDF) - CML Microsystems Plc
Part Name
Description
MFG CO.
'CMX649' PDF : 50 Pages View PDF
ADM Codec
CMX649
6.3 Example CODEC Setups and Application Help
Below are tabulated some applicable settings for the CLOCK DIVIDER CONTROL Register ($72) .
Audio Switched Capacitor Filter Clock Settings (clock frequency in kHz)
Crystal vs Audio Filter Divider Chart for CMX649 Yielding the Recommended ~256kHz SCF Clock
Divider values
8
15.5
15.75
16
22
31.25 47.75
Register bits
clk ctrl[10:8]
Crystal Prescaler
001
010
011
100
101
110
111
Freq MHz Value clk ctrl[12:11]
2.048
1
00
256.000
4
1
00
258.065 253.968
4.032
1
00
256.000
4.096
1
00
256.000
8
1
00
256.000
8.064
2
01
256.000
8.192
2
01
256.000
11.2896
2
01
256.582
12
1
00
256.684
12.096
3
10
256.000
12.288
3
10
256.000
16
2
01
256.000
16.128
4
11
256.000
16.384
4
11
256.000
© 2003 CML Microsystems Plc
39
D/649/2
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