CS42L51_07 Datasheet, PDF (64/88 Pages) Cirrus Logic – Low Power, Stereo CODEC with Headphone Amp

CS42L51
OFFTIME[2:0]
110
111
Function:
Off Time
Fs = 12, 24, 48 or
96 kHz
9.35 s
10.80 s
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 15 on page 36 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
Function:
Volume Setting
+12.0 dB
···
0 dB
-2 dB
-4 dB
···
-50 dB
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 15 on page 36 for single-, multiple- and continuous-beep configurations using the REPEAT
and BEEP bits. Levels are decoded as described in the table above.
6.16 Beep Configuration & Tone Configuration (Address 14h)
7
REPEAT
6
BEEP
5
Reserved
4
3
2
TREB_CF1 TREB_CF0 BASS_CF1
1
BASS_CF0
0
TC_EN
Note: The DATA_SEL[1:0] bits in reg09h must be set to ‘01’b to enable function control in this register.
Repeat Beep (REPEAT)
Default: 0
0 - Disabled
1 - Enabled
Function:
This bit is used in conjunction with the BEEP bit to mix a continuous or periodic beep with the analog output.
Refer to Figure 15 on page 36 for a description of each configuration option.
Beep (BEEP)
Default: 0
0 - Disabled
1 - Enabled
Function:
64
DS679F1