AK4436VN Datasheet, PDF (22/63 Pages) Asahi Kasei Microsystems – 108dB 768kHz 32bit 8-Channel Audio DAC

[AK4438]
1. Manual Setting Mode (ACKS bit = “0”)
MCLK frequency is detected automatically and the sampling rate is set by DFS2-0 bits (Table 1). The
MCLK frequency corresponding to each sampling speed should be provided externally (Table 2, Table 3).
The AK4438 is set to Manual Setting Mode at power-up (PDN pin = “L” →“H”). When DFS2-0 bits are
changed, the AK4438 should be reset by RSTN bit.
DFS2
0
0
0
0
1
1
1
1
DFS1 DFS0
Sampling Speed Mode (fs)
0
0
Normal Speed Mode
8kHz~48kHz
0
1
Double Speed Mode
48kHz~96kHz
1
0
Quad Speed Mode
96kHz~192kHz
1
1
N/A
N/A
0
0
Oct Speed Mode
384kHz
0
1
Hex Speed Mode
768kHz
1
0
N/A
N/A
1
1
N/A
N/A
(N/A: Not Available)
Table 1. Sampling Speed (Manual Setting Mode)
(default)
LRCK
MCLK(MHz)
Sampling
fs
32fs 48fs 64fs 96fs Speed
8.0kHz
N/A
N/A
N/A
N/A
44.1kHz N/A N/A N/A N/A Normal
48.0kHz N/A
N/A
N/A
N/A
88.2kHz N/A
96.0kHz N/A
N/A
N/A
N/A
N/A
N/A
N/A
Double
176.4kHz N/A N/A N/A N/A
192.0kHz N/A N/A N/A N/A
Quad
384.0kHz N/A
N/A 24.576 36.864
Oct
768.0kHz 24.576 36.864 N/A
N/A
Hex
Table 2. System Clock Example (Manual Setting Mode)
LRCK
MCLK(MHz)
fs
128fs 192fs 256fs 384fs 512fs 768fs
8.0kHz
N/A
N/A
2.0480 3.0720 4.0960 6.1440
44.1kHz N/A
N/A 11.2896 16.9344 22.5792 33.8688
48.0kHz N/A
N/A 12.2880 18.4320 24.5760 36.8640
88.2kHz N/A
N/A 22.5792 33.8688 N/A
N/A
96.0kHz N/A
N/A 24.5760 36.8640 N/A
N/A
176.4kHz 22.5792 33.8688 N/A
N/A
N/A
N/A
192.0kHz 24.5760 36.8640 N/A
N/A
N/A
N/A
384.0kHz N/A
N/A
N/A
N/A
N/A
N/A
768.0kHz N/A
N/A
N/A
N/A
N/A
N/A
Table 3. System Clock Example (Manual Setting Mode)
Sampling
Speed
Normal
Double
Quad
Oct
Hex
016001925-E-00
- 22 -
2016/03