AK4635 AKM [Asahi Kasei Microsystems], AK4635 Datasheet - Page 55

• Manufacturer Part Number: AK4635
• Description: 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

■
The AK4635 generates and output square wave from speaker amp. After outputting the signal during the time set by
BPON6-0 bits, the AK4635 stops the output signal during the time set by BPOFF6-0 bits
set by BPTM6-0 bit, and the output level is set by BPLVL2-0 bits. When BPCNT bit is “0”, if BPOUT bit is written “1”,
the AK4635 outputs the beep for the times of repeat count. When the output finish, BPOUT bit is set to “0” automatically.
When BPCNT bit is set to “1”, it outputs the beep in succession regardless of repeat count, on-time and off-time.
< Setting parameter >
Rev. 0.6
BEEP Generate
1) Output Frequency (
2) ON Time
3) OFF Time
4) Repeat Count
5) Output Level
BPFR1-0, BPON7-0, BPOFF7-0, BPTM6-0 and BPLVL3-0 bits should be set when BPOUT =BPCNT
= “0”.
BPCNT bit is given priority in BPOUT bit. When BPOUT bit be set to “1”, if BPCNT bit is set to “0”,
BPOUT bit is set to “0” forcibly.
BEEP Output
(Table
(Table
(Table
(Table
41)
42)
Table 38
44)
43)
ON Time
Generator
BEEP
~
Table
Figure 49. BEEP signal output path
SMUTE
DATT2
40)
Figure 50. Beep output
LPF
OFF Time
- 55 -
DAC
Repeat Count
Line Out Amp
Class-D SPK-Amp
(Figure
50). The repeat count is
[AK4635]
2007/10