AK5572 Datasheet, PDF (35/68 Pages) Asahi Kasei Microsystems – 2-Channel Differential 32-bit ADC

[AK5572]
The BICK frequency must be set to 32fs or 48fs in slave mode if the audio interface format is normal
output (non TDM) and the interface speed is in HEX mode. Bit length of A/D data is determined by BICK
frequency regardless of the DIF1 pin (bit). It is 16-bit when the BICK frequency is 32fs and 24-bit when
the BICK frequency is 48fs.
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
L
L(0) H(1) 24-bit, I²S L/H I 48-128fs I 128-1024fs I
2
H(1) L(0) 32-bit, MSB H/L I 64-128fs I 128-1024fs I
3
Normal
Double L(0) L(0)
H(1) H(1) 32-bit, I²S L/H I 64-128fs I 128-1024fs I
4
Quad
5
L(0) L(0) 24-bit, MSB H/L O 64fs O 128-1024fs I
L(0) H(1) 24-bit, I²S L/H O 64fs O 128-1024fs I
H
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
11
12 ^Normal
13
*
L(0) 24-bit, MSB ↑ I 48fs I 32-96fs I
*
H(1) 24-bit, I²S ↓ I 48fs I 32-96fs I
L
L(0) L(0) 24-bit, MSB ↑ I 64fs I 32-96fs I
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
*
H(1) 24-bit, I²S ↓ O 48fs O 48fs
I
H
20
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)
015016766-E-00
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2015/12