CS42L52 Datasheet, PDF (59/82 Pages) Cirrus Logic – Low Power, Stereo CODEC w/Headphone & Speaker Amps

CS42L52
6.21 Beep Frequency & On Time (Address 1Ch)
7
FREQ3
6
FREQ2
5
FREQ1
4
FREQ0
3
ONTIME3
2
ONTIME2
1
ONTIME1
0
ONTIME0
6.21.1 Beep Frequency
Sets the frequency of the beep signal.
FREQ[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Application:
Frequency (Fs = 12, 24, 48 or 96 kHz)
260.87 Hz
521.74 Hz
585.37 Hz
666.67 Hz
705.88 Hz
774.19 Hz
888.89 Hz
1000.00 Hz
1043.48 Hz
1200.00 Hz
1333.33 Hz
1411.76 Hz
1600.00 Hz
1714.29 Hz
2000.00 Hz
2181.82 Hz
“Beep Generator” on page 30
Pitch
C4
C5
D5
E5
F5
G5
A5
B5
C6
D6
E6
F6
G6
A6
B6
C7
Notes:
1. This setting must not change when BEEP is enabled.
2. Beep frequency will scale directly with sample rate, Fs, but is fixed at the nominal Fs within each
speed mode.
DS680A1
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