AK4633 Datasheet, PDF (58/82 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK-AMP

ASAHI KASEI
[AK4633]
Addr
03H
Register Name
Signal Select 2
Default
D7
PFSDO
1
D6
AOPS
0
D5
MGAIN1
0
D4
SPKG1
0
D3
SPKG0
0
D2
BEEPA
0
D1
PFDAC
0
D0
ADCPF
1
ADCPF : Select the input signal to Programmable Filter/ALC
0: SDTI
1: Output from ADC (Default)
PFDAC : Select the input signal to DAC
0: SDTI (Default)
1: Output from programmable Filter/ALC
BEEPA: Switch Control from beep signal to mono line output amp
0: OFF (Default)
1: ON
When PMAO bit is “1”, BEEPA bit is enabled. When PMAO bit is “0”, the AOUT pin go to AVSS.
SPKG1-0: Select Speaker-Amp Output Gain ( Table 35)
Default: “00”
DAC
BEEP
DACS
BEEPS
SPK
DACA
BEEPA
AOUT
Figure 44. Speaker and Mono Lineout-Amps switch control
MGAIN1: MIC-Amp Gain Control (Table 18)
MGAIN2, MGAIN0 bit is D1,D2 bit of 02H. Default: “001H” (+20.0dB)
AOPS: Mono Line Output Power-Save Mode
0: Normal Operation (Default)
1: Power Save Mode
Power-save mode is enable at AOPS bit = “1”. POP noise at power-up/down can be reduced by changing at
AOPS bit = “1” (Figure 40).
PFSDO : Select the output signal from SDTO
0: Output from ADC (+ 1^st HPF)
1: Output from Programmable Filter/ALC(Default)
MS0447-E-03
- 58 -
2006/04