AK4695 Datasheet, PDF (57/107 Pages) Asahi Kasei Microsystems – 24bit 4ch CODEC with MIC/HP/SPK/LINE-AMP

[AK4695]
Slope Setting
M1G = ^Y1M
X1_M
x 16, M2G = ^{(Y2M – Y1M)}
(X2_M – X1_M)
x 16,
M3G = ^{(Y3M – Y2M)} x 16, M4G = ^{(Y4M – Y3M)} x 16,
(X3_M – X2_M)
(X4_M – X3_M)
The results calculated by the equations above should be rounded off to integer. These integers are slope data. X1/2/3_M
and Y1/2/3_M values must be set to keep the Slope Data 127 or less (Gain ≤ 18dB).
M1G6-0 bits, M2G6-0 bits,
M3G6-0 bits, M4G6-0 bits
Slope Data
Gain [dB]
(20 log (Slope Data / 16))
00H
0
-∞
(default)
01H
1
-24.08
02H
2
-18.06
:
:
:
10H
16
0
:
:
:
7EH
126
17.93
7FH
127
17.99
Table 55. DVLC Slope Setting for Middle Frequency Range
MS1463-E-01
- 57 -
2014/12