AK4558EN Datasheet, PDF (73/94 Pages) Asahi Kasei Microsystems – 108dB 216kHz 32Bit CODEC with PLL

[AK4558]
1-4. External Clock Mode (Master Mode)
(CKS3-2 pins = “HH”)
Power Supply
PDN pin
Internal PDN
MCKI pin
BICK pin
LRCK pin
Example:
: ^{Audio I/F Format: 32bit I2S (ADC and DAC)}
Input MCKI frequency: 256fsn
Sampling Frequency: 44.1kHz
BCKO: 64fs
(1) Power Supply & PDN pin = “L”  “H”
(3) MCKI input
(1)
(2)
1ms (max) (LDOE=”L”), 10ms (max) (LDOE=”H”)
(3)
Input
(4)
(PS pin=”L”) Addr:03H, Data:38H
Addr:04H, Data:00H
Addr:05H, Data:02H
(PS pin=”H”) CKS3-0 pins= “ HHHH”
(4)
Output
BICK and LRCK output
Figure 56. Clock Set Up Sequence (4)
<Sequence>
(1) After Power Up: PDN pin “L” → “H”
“L” time of 150ns or more is needed to reset the AK4558.
(2) Control register settings become available in 10ms (1ms)(min.) when LDOE pin= “H”(“L”) after
the PDN pin “L” → “H”. The power-up time of VCOM will be 2ms (max.) after the PDN pin “L”
→ “H” if the external capacitor is 1μF±50%.
(3) Input MCKI.
(4) When PS pin = “L”, set DIF2-0, DFS1-0 MCKS1-0 and BCKO1-0 bits. When PS pin = “H”, set
CKS pin. The AK4558 starts outputting LRCK and BICK.
015004500-E-02
- 73 -
2015/09