AK4632 Datasheet, PDF (47/70 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Mono CODEC with ALC & MIC/SPK/Video-AMP

ASAHI KASEI
[AK4632]
Addr
03H
Register Name
Signal Select 2
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
MGAIN1 SPKG1 SPKG0 BEEPA ALC1M ALC1A
0
0
0
0
0
0
0
0
ALC1A: Switch Control from ALC1 output signal to mono line output amp.
0: OFF (Default)
1: ON
When PMAO bit is “1”, ALC1A bit is enabled. When PMAO bit is “0”, the AOUT pin is AVSS.
ALC1M: Switch Control from ALC1 output signal to mono amp.
0: OFF (Default)
1: ON
When PMSPK bit is “1”, ALC1M is enabled. When PMSPK bit is “0”, the MOUT pin goes Hi-Z state.
BEEPA: Switch Control from beep signal to mono line output amp.
0: OFF (Default)
1: ON
When PMAO bit is “1”, BEEPA is enabled. When PMAO bit is “0”, the AOUT pin is AVSS.
SPKG1-0: Select Speaker-Amp Output Gain (See Table 27)
SPKG1-0 bits
Gain
00
0dB
01
+2.2dB
10
+4.4dB
11
+8.7dB
Table 27. Gain of Speaker-Amp
MGAIN1: Mic-Amplifier Gain Control(See Table 26)
IPGA
DAC
BEEP
ALC1M
DACM
MIX
BEEPS
ALC1A
DACA
BEEPA
ALC2
ALC2S
Figure 44. Speaker and Mono Lineout-Amps switch control
SPK
AOUT
MS0396-E-00
- 47 -
2005/06