AK2308LV_05 Datasheet, PDF (15/31 Pages) Asahi Kasei Microsystems – SPEECH CODEC for Digital Key telephone

ASAHI KASEI
RX Handset Volume Control ( Vol 2 ), RX Handset Volume Control ( Vol 3)
Register Type : Read Write [Address:0111 D4-D0(V2_3-V2_0)]
ADD
D7
D6
D5
D4
D3
D2
D1
6
-
-
V3_1 V3_0 V2_3 V2_2 V2_1
default 0
0
0
0
0
0
0
D0
V2_0
0
[AK2308LV]
V2_[3-0]; Analog volume for the RX side handset output ( precise). The gain is variable from +8dB to –18dB by 2 dB
step. The total gain control is done with V3_[1:0].
V2_3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
V2_2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
V2_1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
V2_0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
VOL2
-18dB
-16dB
-14dB
-12dB
-10dB
-8dB
-6dB
-4dB
-2dB
0dB
+2dB
+4dB
+6dB
+8dB
Forbidden
Forbidden
Comment
defult
V3_[1-0]; Analog volume for the RX side handset output (coarse). The gain is variable from +6dB to –6dB by 6 dB
step.
V3_1
0
0
1
1
V3_0
0
1
0
1
VOL3
-6dB
0dB
+6dB
Forbidden
Comment
defult
MS0227-E-01
15
2005/12