ak4141 AKM Semiconductor, Inc., ak4141 Datasheet - Page 56

• Manufacturer Part Number: ak4141
• Description: Nicam/a2/eia-j Digital Stereo Decoder
• Manufacturer: AKM Semiconductor, Inc.

Decoder
AGOFF: AGC disable
IFVOL[5:0]: SIF volume control
MS0952-E-00
Addr
These bits are ignored when AGOFF bit = “0”. PGA-Gain = (52+IFVOL*2)/(75-IFVOL). The total gain of the system
is the sum of IFVOL bits setting and GSEL1/GSEL2 bits setting.
40H
SIF AGC Manual Control
Default
Register Name
R/W
AGOFF
0
1
AGOFF
IFVOL[5:0]
R/W
D7
0
2DH
2EH
2FH
00H
01H
02H
:
Table 40. SIF volume control
Table 39. AGC disable
R/W
D6
0
0
AGC status
- 56 -
Disabled
Enabled
R/W
D5
0
+21.89dB
+22.63dB
+23.42dB
SIF Gain
-3.18dB
-2.74dB
-2.30dB
:
R/W
D4
0
(default)
R/W
D3
0
IFVOL[5:0]
(default)
R/W
D2
0
R/W
D1
0
[AK4141]
R/W
2008/05
D0
0