AK4632VN AKM [Asahi Kasei Microsystems], AK4632VN Datasheet - Page 65

• Manufacturer Part Number: AK4632VN
• Description: 16-Bit ?? Mono CODEC with ALC & MIC/SPK/Video-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
MS0396-E-00
DVOL7-0 bits
(Addr:0AH, D7-0)
2. In case of using POP reduction circuit of AK4632.
(Addr:02H, D4)
(Addr:03H, D6)
(Addr:00H, D2)
(Addr:00H, D3)
<Example>
PSAON bit
PMDAC bit
FS2-0 bits
DACA bit
AOUT pin
PMAO bit
(Addr:05H,
D5,D2-0)
At first, clocks should be supplied according to “Clock Set Up” sequence.
(1) Set up a sampling frequency (FS3-0 bits). When the AK4632 is PLL mode, DAC and Mono Line Amp should
(2) Set up the path of “DAC
(3) Set up the digital volume (Addr: 0AH)
(4) Enter power-save mode of Mono Line Amp: AOPSN bit = “0” → “1”
(5) Power Up of DAC and Mono Line Amp: PMDAC bit = PMAO bit = “0” → “1”
(6) Exit power-save mode of Mono Line Amp after AOUT pin rises up. : AOPSN bit = “1” → “0”
(7) Enter power-save mode of Mono Line Amp: AOPSN bit = “0” → “1”
(8) Power Down of DAC and Mono Line Amp: PMDAC bit = PMAO bit = “1” → “0”
(9) Disable the path of “DAC
(10) Exit power-save mode of Mono Line Amp after AOUT pin falls down. : AOPSN bit = “1” → “0”
be powered-up in consideration of PLL lock time after a sampling frequency is changed.
After DAC is powered-up, the digital volume changes from default value (0dB) to the register setting value by
the soft transition.
AOUT pin rises up to VCOM voltage. Rise time is 200ms (max 300ms) at C=1µF.
Mono Line Amp goes to normal operation.
AOUT pin falls down to AVSS. Fall time is 200ms (max 300ms) at C=1µF.
XXXX
00011000
(1)
(2)
(3)
(4)
(5)
>300 ms
Mono Line Amp” : DACA bit: “0” → “1”
Mono Line Amp” : DACA bit: “1” → “0”
Figure 54. Mono Lineout Sequence
XXXXXXX
(6)
XXXX
Normal Output
- 65 -
(7)
(8)
(9)
>300 ms
(10)
Example:
PLL, Master Mode
Audio I/F Format :DSP Mode, BCKP=MSBS= “0”
Sampling Frequency: 8kHz
Digital Volume: -8dB
=ALC1A= “0”
MGAIN1=SPKG1=SPKG0=BEEPA=ALC1M
(3) Addr:0AH, Data:28H
(5) Addr:00H, Data:4CH
(1) Addr:05H, Data:00H
(2) Addr:02H, Data:10H
(4) Addr:03H, Data:40H
(6) Addr:03H, Data:00H
(7) Addr:03H, Data:40H
(8) Addr:00H, Data:40H
(9) Addr:02H, Data:00H
(10) Addr:03H, Data:00H
Playback
[AK4632]
2005/06