ak4528 AKM Semiconductor, Inc., ak4528 Datasheet - Page 17

• Manufacturer Part Number: ak4528
• Description: High Performance 24bit 96khz Audio Codec
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
In case of parallel mode, both ADC and DAC are powered up with releasing internal reset state when PDN is set to “H”.
Therefore each outputs start to output at once. However the initialization of ADC/DAC, and the fade-in cycle of OATT
(8031/fs) are exist.
MS0011-E-01
Power Supply
PDN pin
ADC Internal State
SDTO
DAC Internal State
OATT
AOUT
External Mute
Example
External clocks
• INITA:
• INITD:
• PD:
• FI:
• AOUT:
Initializing period of ADC analog section (516/fs).
Initializing period of DAC analog section (512/fs).
Power down state.
Fade in. After exiting power down state, ATT value fades in by 8032/fs cycles.
Some pop noise may occur at “*”.
Figure 8. Reset & Power Down Sequence in Parallel Mode
PD
PD
00H
Hi-Z
INITA
INITD
“0”
00H → 7FH
*
512/fs
The clocks can be stopped.
FI
MCLK, LRCK, BICK
Output
Normal
Normal
- 17 -
Output
7FH
*
00H
PD
PD
“0”
Hi-Z
INITA
INITD
00H → 7FH
MCLK, LRCK, BICK
*
512/fs
FI
Normal
Output
Normal
Output
[AK4528]
7FH
2004/01