AK4396 Datasheet, PDF (19/38 Pages) Asahi Kasei Microsystems – Advanced Multi-Bit 192kHz 24-Bit ΔΣ DAC

ASAHI KASEI
[AK4396]
2. Auto Setting Mode (ACKS pin = “H”)
MCLK frequency and the sampling speed are detected automatically (Table 4) and DFS0 pin is ignored. DFS0 pin should
be fixed to DVSS or DVDD.
MCLK
Sampling Speed
1152fs
Normal (fs≤32kHz)
512fs
768fs
Normal
256fs
384fs
Double
128fs
192fs
Quad
Table 4. Sampling Speed (Auto Setting Mode @Parallel Mode)
LRCK
fs
32.0kHz
44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
MCLK (MHz)
128fs
192fs
256fs
384fs
512fs
768fs
1152fs
N/A
N/A
N/A
N/A
16.3840 24.5760 36.8640
N/A
N/A
N/A
N/A
22.5792 33.8688
N/A
N/A
N/A
N/A
N/A
24.5760 36.8640
N/A
N/A
N/A
22.5792 33.8688
N/A
N/A
N/A
N/A
N/A
24.5760 36.8640
N/A
N/A
N/A
22.5792 33.8688
N/A
N/A
N/A
N/A
N/A
24.5760 36.8640
N/A
N/A
N/A
N/A
N/A
Table 5. System Clock Example (Auto Setting Mode @Parallel Mode)
Sampling
Speed
Normal
Double
Quad
(2) Serial Mode (P/S pin = “L”)
1. Manual Setting Mode (ACKS bit = “0”)
MCLK frequency is detected automatically and the sampling speed is set by DFS1-0 bits (Table 6). The MCLK frequency
corresponding to each sampling speed should be provided (Table 7). The AK4396 is set to Manual Setting Mode at
power-up (PDN pin = “L” → “H”). When DFS1-0 bits are changed, the AK4396 should be reset by RSTN bit.
DFS1 bit DFS0 bit
Sampling Rate (fs)
0
0
Normal Speed Mode 30kHz ∼ 54kHz Default
0
1
Double Speed Mode 54kHz ∼ 108kHz
1
0
Quad Speed Mode 120kHz ∼ 216kHz
Table 6. Sampling Speed (Manual Setting Mode @Serial Mode)
LRCK
fs
32.0kHz
44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
MCLK (MHz)
128fs
192fs
256fs
384fs
512fs
768fs
1152fs
N/A
N/A
8.1920 12.2880 16.3840 24.5760 36.8640
N/A
N/A
11.2896 16.9344 22.5792 33.8688
N/A
N/A
N/A
12.2880 18.4320 24.5760 36.8640
N/A
11.2896 16.9344 22.5792 33.8688
N/A
N/A
N/A
12.2880 18.4320 24.5760 36.8640
N/A
N/A
N/A
22.5792 33.8688
N/A
N/A
N/A
N/A
N/A
24.5760 36.8640
N/A
N/A
N/A
N/A
N/A
Table 7. System Clock Example (Manual Setting Mode @Serial Mode)
BICK
64fs
2.0480MHz
2.8224MHz
3.0720MHz
5.6448MHz
6.1440MHz
11.2896MHz
12.2880MHz
MS0336-E-00
- 19 -
2004/08