AK4953A Datasheet, PDF (89/96 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4953A]
2. Power up DAC → Headphone-Amp
BEEP Gen bits
(Addr:15-19H)
PMBP bit
(Addr:00H, D5)
BPOUT bit
(Addr:19H, D7)
HPL pin
HPR pin
00H
(1)
00H
(2)
(3)
(4)
(3)
Example:default
(1) Addr:15-19H, Data:00H
(2) Addr:00H, D5 bit = “1”
(3) Addr:19H, Data:80H
PTS1-0
bits
PTS1-0
bits
BEEP Signal Output
Normal Output
Normal Output
+ Beep Output
Normal Output
Addr:19H, Data:00H (Auto)
(4) Addr:00H, D5 bit = “0”
Figure 60. “BEEP Generator → Headphone-Amp” Output Sequence
<Example>
At first, clocks should be supplied according to “Clock Set Up” sequence, and Headphone-Amp output should be
started according to “Headphone-Amp Output” sequence.
(1) Set up BEEP Generator (Addr: 15H ~ 19H) (When repeat output time BPCNT bit = “0”)
(2) Power up BEEP Generator: PMBP bit = “0” → “1”
(3) BEEP output: BPOUT bit= “0” → “1”
After the transition time by setting PTS1-0 bits, BEEP signal is started to output. After outputting data
particular set times, BPOUT bit automatically goes to “0”.
(4) Power down BEEP Generator: PMBP bit = “1” → “0”
MS1252-E-00
- 89 -
2010/10