AK4458VN Datasheet, PDF (57/83 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 8ch Premium DAC

[AK4458]
■ Error Detection
Three types of error can be detected in I²C mode when the LDOE pin = “H”. (Table 28)。
No Error
Error Condition
1 Internal Reference Voltage Error Internal reference voltage is not powered up.
2 LDO Over Voltage Detection
LDO voltage > 2.2 ~ 2.5V
3 LDO Over Current Detection
LDO current < 40 ~ 110mA
Table 28. Error Detection
In I²C mode, the AK4458 does not generate acknowledge (ACK) in error status.
■ System Reset
The AK4458 should be reset once by bringing the PDN pin = “L” upon power-up. In PCM (DSD) mode, the
AK4458 exits this system reset (power-down mode) by MCLK and LRCK (DCLK) after the PDN pin = “H”.
The AK4458 detects a rising edge of MCLK first, and then the analog block exits power-down mode by a
rising edge of LRCK (DCLK). The digital block exits power-down mode after the internal counter counts
MCLK for 4/fs.
014011794-E-00
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2015/01