CS43L22 查看數據表（PDF） - Cirrus Logic

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CS43L22

Low Power, Stereo DAC w/Headphone & Speaker Amps

Cirrus Logic 

Confidential Draft

3/4/10

CS43L22

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.

7.15.2 Beep On Time

Sets the on duration of the beep signal.

ONTIME[3:0]

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111

Application:

On Time (Fs = 12, 24, 48 or 96 kHz)

~86 ms

~430 ms

~780 ms

~1.20 s

~1.50 s

~1.80 s

~2.20 s

~2.50 s

~2.80 s

~3.20 s

~3.50 s

~3.80 s

~4.20 s

~4.50 s

~4.80 s

~5.20 s

“Beep Generator” on page 22

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.

7.16 Beep Volume & Off Time (Address 1Dh)

7

OFFTIME2

6

OFFTIME1

5

OFFTIME0

4

BPVOL4

3

BPVOL3

2

BPVOL2

1

BPVOL1

0

BPVOL0

7.16.1 Beep Off Time

Sets the off duration of the beep signal.

OFFTIME[2:0]

000

001

010

011

100

101

110

111

Application:

Off Time (Fs = 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

“Beep Generator” on page 22

48

DS792F2

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