CS42L51 Datasheet, PDF (61/83 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp

CS42L51
6.15 Beep Off Time & Volume (Address 13h)
7
OFFTIME2
6
OFFTIME1
5
OFFTIME0
4
BPVOL4
3
BPVOL3
2
BPVOL2
1
BPVOL1
0
BPVOL0
NOTE: The DATA_SEL[1:0] bits in reg09h must be set to ‘01’b to enable function control in this register.
Beep Off Time (OFFTIME[2:0])
Default: 0
OFFTIME[2:0]
000
001
010
011
100
101
110
111
Off Time
Fs = 12, 24, 48 or
96 kHz
1.23 s
2.58 s
3.90 s
5.20 s
6.60 s
8.05 s
9.35 s
10.80 s
Function:
The off-duration of the beep signal can be adjusted from approximately 75 ms to 680 ms. The off-duration
will scale inversely with sample rate, Fs, but is fixed at the nominal Fs within each speed mode. Refer to
Figure 16 on page 34 for single, multiple and continuous beep configurations using the REPEAT and BEEP
bits.
Beep Volume (BPVOL[4:0])
Default: 00000
Binary Code
00110
···
00000
11111
11110
···
00111
Volume Setting
+12.0 dB
···
0 dB
-2 dB
-4 dB
···
-50 dB
Function:
The level of the Beep into the output mixer can be adjusted in 2.0 dB increments from +12 dB to -50 dB.
Refer to Figure 16 on page 34 for single, multiple and continuous beep configurations using the REPEAT
and BEEP bits. Levels are decoded as described in the table above.
DS679A2
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