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AK4636 Datasheet, PDF (96/105 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP | |||
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[AK4636]
â Mono Lineout
FS3-0 bits
(Addr:05H,
D5, D2-0)
X,XXX
(1)
0,010
(11)
DACA bit
(2)
(Addr:02H, D4)
(3)
ADCPF bit
0 or 1
0
(Addr:03H, D0)
PFDAC bit
(Addr:03H, D1)
ALC2 Control
(Addr:07H)
OVOL7-0 bits
(Addr:0AH, D7-0)
0 or 1
0 or 1
XXH
(4)
(5)
1
0
91H
AOPS bit
(Addr:03H, D6)
PMDAC bit
(Addr:00H, D2)
PMPFIL bit
(Addr:00H, D7)
PMAO bit
(Addr:00H, D3)
AOUT pin
(6)
(8)
(7)
(9)
(12)
(10)
>300 ms
Normal Output
>300 ms
Figure 76. Mono Lineout Sequence
Example:
PLL Master Mode
Audio I/F Format: MSB justified
Sampling Frequency: 16kHz
LOVL bit = â0â
ALC2 : OFF, OVOL = â91H â
ALC 2 setting:Refer to Table 33
HPF : ON (fc=150Hz)
4+1 band EQ : OFF
(1) Addr:05H, Data:02H
(2) Addr:02H, Data:10H
(3) Addr:03H, Data:02H
(4) Addr:07H, Data:00H
(5) Addr:0AH, Data:91H
(6) Addr:03H, Data:42H
(7) Addr:00H, Data:CCH
(8) Addr:03H, Data:02H
Playback
(9) Addr:03H, Data:42H
(10) Addr:00H, Data:40H
(11) Addr:02H, Data:00H
(12) Addr:03H, Data:02H
<Example>
In case of using digital volume in manual mode
At first, clocks should be supplied according to âClock Set Upâ sequence.
(1) Set up the sampling frequency (FS3-0 bits). When the AK4636 is PLL mode, DAC should be powered-up in
consideration of PLL lock time after the sampling frequency is changed.
(2) Set up the path of âDAC â Mono Line Ampâ
DACA bit: â0â â â1â
(3) Set up the path: ADCPF bit = â0â, PFDAC bit = â1â
(4) ALC2 Disable: ALC2 bit = â0â
(5) Set up the digital volume (Addr: 0AH)
(6) AOUT power save mode: AOPS bit: â0â â â1â
(7) Power-up of DAC, Programmable Filter and Mono Line Amp:
PMDAC bit = PMPFIL bit = PMAO bit = â0â â â1â
AOUT pin goes to âHâ. It takes 300ms (max) when C = 1µF
(8) Exit power save mode of AOUT: AOPS bit = â1â â â0â
Set up AOPS bit after AOUT became âHâ, then the AOUT pin starts outputting data.
(9) Enter power save mode of AOUT: AOPS bit= â0â â â1â
(10) Power âdown the DAC, Programmable Filter and Mono Line Amp:
PMDAC bit = PMPFIL bit = PMAO bit = â1â Ã â0â
The AOUT pin starts going to âLâ. It takes 300ms(max) when C = 1μF.
(11) Disable the path of âDAC â Mono Line Ampâ: DACA bit= â1â â â0â
(12) Exit power save mode of AOUT: AOPS bit=â1â â â0â
Set up AOPS bit after AOUT became âLâ.
MS1012-E-01
- 96 -
2010/08
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