AK4112B_12 Datasheet, PDF (11/31 Pages) Asahi Kasei Microsystems – High Feature 96kHz 24bit DIR

[AK4112B]
„ Sampling Frequency and Pre-emphasis Detect
The AK4112B outputs the encoded information of sampling frequency and pre-emphasis in channel status to FS0, FS1
and PEM bits in control register. These information are output from channel 1 at default. It can be switched to channel 2
by CS12 bit in control register.
FS1
FS0
Byte 3
fs
Bits 0-3
0
0
44.1kHz
0000
0
1
Reserved all others
1
0
48kHz
0100
1
1
32kHz
1100
Table 3. fs information in Consumer Mode
FS1
FS0
Byte 0
fs
Bits 6-7
0
0
44.1kHz
10
0
1
Reserved
00
1
0
48kHz
01
1
1
32kHz
11
Table 4. fs information in Profession Mode
PEM
0
1
Pre-emphasis
OFF
ON
Byte 0
Bits 3-5
≠ 0X100
0X100
Table 5. PEM in Consumer Mode
PEM
0
1
Pre-emphasis
OFF
ON
Byte 0
Bits 2-4
≠110
110
Table 6. PEM in professional Mode
MS0078-E-03
- 11 -
2012/01