ASAHI KASEI
[AK4360]
Rch
Lch
LRCK
0
1
2
3
4
5
6
11 12 13 14 15 0
1
2
3
4
5
6
11 12 13 14 15 0 1
BICK (32fs)
SDATA
@16bit
151413121110
5 4 3 2 1 0 151413121110
5 4 3 2 1 0 15
15:MSB, 0:LSB@16bit
Figure 5. Mode 0 Timing
Lch
Rch
6
LRCK
0
0
1
2
3
4
5
6
11 12 13 14 15 0
1
2
3
4
5
11 12 13 14 15 0
1
1
BICK (32fs)
SDATA
@16bit
0 1514131211
6 5 4 3 2 1 0 1514131211
6 5 4 3 2 1 0
1
2
16 17 18 19 20 21
30 31 0
1
2
16 17 18 19 20 21
30 31 0
BICK (64fs)
SDATA
@16bit
15
1 0
Don't care 15
Don't care 17
1 0
Don't care
15:MSB, 0:LSB@16bit
SDATA
@18bit
17
19
3 2 1 0
3 2 1 0
17:MSB, 0:LSB@18bit
Don't care
SDATA
@20bit
5 4 3 2 1 0 Don't care 19
5 4 3 2 1 0 Don't care
19:MSB, 0:LSB@20bit
Figure 6. Mode 1 Timing
n De-emphasis filter
The AK4360 includes the digital de-emphasis filter (tc=50/15µs) by IIR filter. This filter corresponds to 44.1kHz
sampling. Setting DEM pin “H” enables the de-emphasis.
n Low Frequency Boost Function
When BOOST pin goes “H”, high pass filter characteristics which is made by a external capacitor (220µF) and a resistor
(16Ω) can be corrected. The cut-off frequency is 45Hz@fs=44.1kHz.
20Hz
-8dB
-3dB
45Hz
-3dB
-0.5dB
1kHz
0dB
0dB
Boost = “L”
Boost = “H”
Table 3. Low Frequency Characteristics (fs = 44.1kHz)
MS0072-E-00
2001/01
- 10 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
