CMX649 CML Microcircuits, CMX649 Datasheet - Page 39

• Manufacturer Part Number: CMX649
• Description: ADM Codec
• Manufacturer: CML Microcircuits

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