AK4632 Datasheet, PDF (46/70 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono CODEC with ALC & MIC/SPK/Video-AMP

ASAHI KASEI
[AK4632]
Addr
02H
Register Name
Signal Select 1
Default
D7
SPPS
0
D6
BEEPS
0
D5
ALC2S
0
D4
DACA
0
D3
DACM
0
D2
MPWR
0
D1
MICAD
0
D0
MGAIN0
1
MGAIN1-0 : 1^st MIC-amp Gain control(See Table 26)
MGAIN 1 bit is located at D6 bit of 03H
MGAIN1 bit
0
0
1
1
MGAIN0 bit Input Gain
0
0dB
1
+20dB
0
+26dB
1
+32dB
Table 26. Input Gain
Default
MICAD: Switch Control from MIC In to ADC.
0: OFF (Default)
1: ON
When MICAD bit is “1”, the ALC1 output signal is input to ADC.
MPWR: Power Supply Control for Microphone
0: OFF (Default)
1: ON
When PMMIC bit is “1”, MPWR bit is enabled.
DACM: Switch Control from DAC to mono amp.
0: OFF (Default)
1: ON
When PMSPK bit is “1”, DACM bit is enabled. When PMSPK bit is “0”, MOUT pin is Hi-Z state.
DACA: Switch Control from DAC to mono line amp
0: OFF (Default)
1: ON
When PMAO bit is “1”, DACA bit is enabled. When PMAO bit is “0”, the AOUT pin is AVSS.
ALC2S: ALC2 output to Speaker-Amp Enable
0: OFF (Default)
1: ON
When ALC2S bit is “1”, the ALC2 output signal is input to Speaker-Amp.
BEEPS: BEEP pin to Speaker-Amp Enable
0: OFF (Default)
1: ON
When BEEPS bit is “1”, the beep signal is input to Speaker-Amp.
SPPS: Speaker-amp Power-Save-Mode
0: Power Save Mode (Default)
1: Normal Operation
When SPPS bit is “1”, the Speaker-amp is in power-save-mode and the SPP pin becomes Hi-z and SPN pin is
set to SVDD/2 voltage. When the PMSPK bit = “1”, this bit is valid. After the PDN pin changes from “L” to
“H”, the PMSPK bit is “0”, which powers down Speaker-amp.
MS0396-E-00
- 46 -
2005/06