AK4601VQ Datasheet, PDF (67/111 Pages) Asahi Kasei Microsystems – Audio HUB CODEC with Digital Mixer

[AK4601]
■ STO Bit Status
PLL lock signal can be read out from the STO bit when PLLLOCKE bit = “1”.
PLLLOCKE bit
0
1
STO bit
No Error Detected: 1
No Error Detected: 1
PLLLOCK Error Detected: 0
Table 31. STO Bit Status
Note
(default)
■ μP Interface Setting and Pin Status
The AK4601 supports both SPI and I²C interfaces. When using SPI interface, release the power-down
state of the AK4601 while the CSN pin is “H”. After a power-down release, the AK4601 is set to I²C
interface mode. SPI interface mode become enabled by sending the dummy command mentioned
below.
Input “0xDE → 0xADDA → 0x7A” to the SI/I2CFIL pin while the CSN pin is “L” for the dummy command.
The data is in MSB first format.
CSN
SCLK
SI
don’tcare
(L/H)
0xDE (8bit)
0xADDA (16bit)
0x7A(8bit)
don’tcare
(L/H)
Figure 54. Dummy Command Write Sequence
Statuses of the SO/SDA, SCLK/SCL and SI/I2CFIL pins are changed depending on the CSN and PDN
pins.
SPI Interface
I²C Interface
CSN pin
L
L
H
H
PDN pin
L
H
L
SO/SDA pin
Hi-Z
function
“Hi-Z”→ pull-up
SCLK/SCL pin
Input
function
Input
H
function
function
Table 32. μP Interface Setting
SI/I2CFIL pin
Input
function
Input
L (I²C Fast Mode)
H (I²C Fast Mode Plus)
Note 50. The CSN pin and the SI/I2CFIL pin should be fixed to “L” or “H” when using I²C interface mode.
016000391-E-01
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2016/12