Cirrus Logic CS42L55 - Manual (Page 54)

54 DS773F1
CS42L55
6.16.2 Beep On Time
Sets the on duration of the beep signal.
Notes:
1. This setting must not change when BEEP is enabled.
2. Beep on time will scale inversely with sample rate, Fs, but is fixed at the nominal Fs within each speed
mode.
6.17 Beep Volume & Off Time (Address 15h)
6.17.1 Beep Off Time
Sets the off duration of the beep signal.
Notes:
1. This setting must not change when BEEP and/or REPEAT is enabled.
2. Beep off time will scale inversely with sample rate, Fs, but is fixed at the nominal Fs within each speed
mode.
ONTIME[3:0] On Time (Fs = 12, 24 or 48 kHz)
0000 ~86 ms
0001 ~430 ms
0010 ~780 ms
0011 ~1.20 s
0100 ~1.50 s
0101 ~1.80 s
0110 ~2.20 s
0111 ~2.50 s
1000 ~2.80 s
1001 ~3.20 s
1010 ~3.50 s
1011 ~3.80 s
1100 ~4.20 s
1101 ~4.50 s
1110 ~4.80 s
1111 ~5.20 s
Application: “Beep Generator” on page 31
7 6 5 4 3 2 1 0
OFFTIME2 OFFTIME1 OFFTIME0 BPVOL4 BPVOL3 BPVOL2 BPVOL1 BPVOL0
OFFTIME[2:0] Off Time (Fs = 12, 24 or 48 kHz)
000 ~1.23 s
001 ~2.58 s
010 ~3.90 s
011 ~5.20 s
100 ~6.60 s
101 ~8.05 s
110 ~9.35 s
111 ~10.80 s
Application: “Beep Generator” on page 31