AK4425A AKM [Asahi Kasei Microsystems], AK4425A Datasheet - Page 12

• Manufacturer Part Number: AK4425A
• Description: 192kHz 24-Bit Stereo ?? DAC with 2Vrms Output
• Manufacturer: AKM [Asahi Kasei Microsystems]

When MCLK= 256fs/384fs, the AK4425A supports sampling rate of 32kHz~96kHz in auto setting mode
when the sampling rate is 32kHz~48kHz, DR and S/N will degrade by approximately 3dB as compared to when MCLK=
512fs/768fs.
■
The audio data is shifted in via the SDTI pin using the BICK and LRCK inputs. The DIF2-0 bit can select within five
serial data modes as shown in
on the rising edge of BICK. Mode 2 can be used for 16/20 MSB justified formats by zeroing the unused LSBs.
MS1127-E-01
Audio Serial Interface Format
176.4kHz
192.0kHz
32.0kHz
44.1kHz
48.0kHz
32.0kHz
44.1kHz
48.0kHz
88.2kHz
96.0kHz
LRCK
fs
Table 5. Relationship between MCLK frequency and DR, S/N (fs= 44.1kHz) (Auto Setting Mode)
22.5792
24.5760
128fs
Mode
-
-
-
-
-
0
1
2
3
4
DIF2
Table
33.8688
36.8640
0
0
0
0
1
192fs
Table 4. System Clock Example (Auto Setting Mode)
-
-
-
-
-
Table 6. Audio Data Format in Serial control mode
6. In all modes the serial data is MSB-first, two’s complement format and it is latched
DIF1
0
0
1
1
0
256fs/384fs
512fs/768fs
11.2896
22.5792
24.5760
12.288
256fs
8.192
MCLK
DIF0
-
-
-
-
-
0
1
0
1
0
MCLK (MHz)
24bit I
24bit MSB Justified
16bit LSB Justified
20bit LSB Justified
24bit LSB Justified
16.9344
33.8688
36.8640
12.288
18.432
384fs
- 12 -
SDTI Format
-
-
-
-
-
2
S Compatible
DR,S/N
16.3840
22.5792
24.5760
103dB
106dB
512fs
-
-
-
-
BICK
≥32fs
≥40fs
≥48fs
≥48fs
≥48fs
24.5760
33.8688
36.8640
768fs
-
-
-
-
Figure 5
Figure 6
Figure 7
Figure 8
Figure 6
Figure
36.8640
1152fs
-
-
-
-
-
-
(default)
(Table
Sampling
Normal
Double
Speed
[AK4425A]
Quad
2011/03
4). But,