AK4650 Datasheet, PDF (35/86 Pages) Asahi Kasei Microsystems – 16Bit ΔΣ CODEC with MIC/HP/SPK-AMP & TSC

[AK4650]
■ AUX Input
AK4650
AUXIN+ pin
AUXAD bit
AUXIN− pin
AUXMT, GN4-0 bits
Volume
AUXL bit
Figure 22. AUX Input
ADC
HP, SP
AUX input is a differential input. The AK4650 has a volume for AUX Input. This Volume is controlled by GN4-0 bits as
shown in Table 28. The switching noise occurs when GN4-0 bits are changed.
AUXMT
0
1
GN4-0
GAIN (dB)
STEP
00H
+12.0
01H
+10.5
02H
+9.0
:
:
1.5dB
08H
+0.0
:
:
1EH
−33.0
1FH
−34.5
x
MUTE
Table 28. AUX Input Gain Setting (x: Don’t care)
(default)
MS0502-E-01
- 35 -
2007/04