AK5578EN Datasheet, PDF (35/70 Pages) Asahi Kasei Microsystems – 8-Channel Differential 32-bit  ADC

[AK5578]
The BICK frequency will be 64fs in master mode if the audio interface format is normal output (non TDM)
and the interface speed is Normal, Double or Quad mode. Data bit length can be selected from 24-bit and
32-bit by the DIF1 pin (bit).
The MCLK frequency must be 64fs or 96fs in master mode if the audio interface format is normal output
(non TDM) and the interface speed is OCT mode. The BICK frequency will be 64fs. Data bit length can be
selected from 24-bit and 32-bit by the DIF1 pin (bit).
The BICK frequency will be synchronized with the MCLK frequency in master mode if the audio interface
format is normal output (non TDM) and the interface speed is HEX mode. The MCLK frequency must be
32fs, 48fs or 64fs. The bit length of A/D data is 16-bit when the MCLK frequency is 32fs, 24-bit when the
MCLK frequency is 48fs and 24-bit or 32-bit can be selected by the DIF1 pin (bit) when the MCLK
frequency is 64fs.
The DIF0 pin selects the A/D data format between MSB justified and I²C Compatible.
No.
Multiplex
Mode
Speed
Mode
TDM1
pin(bit)
TDM0
pin(bit)
MSN
Pin
DIF1 DIF0
pin(bit) pin(bit)
SDTO
LRCK
BICK
MCLK
Pol. I/O Freq. I/O Freq. I/O
0
L(0) L(0) 24-bit, MSB H/L I 48-128fs I 128-1024fs I
1
2
L
L(0) H(1) 24-bit, I2S L/H I 48-128fs I 128-1024fs I
H(1) L(0) 32-bit, MSB H/L I 64-128fs I 128-1024fs I
3
4
Normal
Double L(0) L(0)
Quad
H(1) H(1) 32-bit, I2S L/H I 64-128fs I 128-1024fs I
L(0) L(0) 24-bit, MSB H/L O 64fs O 128-1024fs I
5
H
L(0) H(1) 24-bit, I2S L/H O 64fs O 128-1024fs I
6
H(1) L(0) 32-bit, MSB H/L O 64fs O 128-1024fs I
7
H(1) H(1) 32-bit, I2S L/H O 64fs O 128-1024fs I
8
*
L(0) 16-bit, MSB ↑ I 32fs I 32-96fs I
9
*
H(1) 16-bit, I2S ↓ I 32fs I 32-96fs I
10
*
L(0) 24-bit, MSB ↑ I 48fs I 32-96fs I
11
12 ^Normal
L
*
H(1) 24-bit, I2S ↓ I 48fs I 32-96fs I
L(0) L(0) 24-bit, MSB ↑ I 64fs I 32-96fs I
13
L(0) H(1) 24-bit, I2S ↓ I 64fs I 32-96fs I
14
H(1) L(0) 32-bit, MSB ↑ I 64fs I 32-96fs I
15
16
OCT
HEX
L(0)
L(0)
H(1) H(1) 32-bit, I2S ↓ I 64fs I 32-96fs I
*
L(0) 16-bit, MSB ↑ O 32fs O 32fs
I
17
*
H(1) 16-bit, I2S ↓ O 32fs O 32fs
I
18
*
L(0) 24-bit, MSB ↑ O 48fs O 48fs
I
19
20
H
*
H(1) 24-bit, I2S ↓ O 48fs O 48fs
I
L(0) L(0) 24-bit, MSB ↑ O 64fs O 64-96fs I
21
L(0) H(1) 24-bit, I2S ↓ O 64fs O 64-96fs I
22
H(1) L(0) 32-bit, MSB ↑ O 64fs O 64-96fs I
23
H(1) H(1) 32-bit, I2S ↓ O 64fs O 64-96fs I
Table 8. Audio Interface Format (Normal Mode)
015016736-E-00
- 35 -
2015/12