AK4359A AKM [Asahi Kasei Microsystems], AK4359A Datasheet - Page 22

• Manufacturer Part Number: AK4359A
• Description: 106dB 192kHz 24-Bit 8ch DAC
• Manufacturer: AKM [Asahi Kasei Microsystems]

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When the MCLK, LRCK or BICK stops, the digital circuit of the AK4359A is placed in power-down mode. When the
MCLK, LRCK and BICK are restarted, power-down mode is released and the AK4359A returns to normal operation
mode.
Internal
D/A In
D/A Out
Clock In
MCLK, BICK, LRCK
Notes:
MS1010-E-01
RSTB pin
AVDD pin
DVDD pin
External
MUTE
(Digital)
(Analog)
State
Reset Function (MCLK, BICK and LRCK stop)
(1) After AVDD and DVDD are powered-up, the PDN pin should be “L” for 150ns.
(2) The analog output corresponding to digital input has group delay (GD).
(3) The digital data can be stopped. Click noise after MCLK, BICK and LRCK are input again can be reduced by
(4) Click noise occurs within 20usec or 20usec +3 ~ 4LRCK from the riding edge (“↑”) of the RSTN pin or MCLK
(5) Mute the analog output externally if click noise (4) influences system applications. The timing example is shown
inputting “0” data during this period.
inputs. Click noise also occurs within 20usec when MCLK, LRCK or BICK is stopped.
in this figure.
Power-down
Power-down
(1)
Hi-Z
(6)
(4)
Normal O peration
GD
Figure 14. Clock Stop Sequence
(2)
- 22 -
(6)
MCLK, BICK, LRCK Stop
(4)
Digital Circuit P ower-down
(5)
(3)
(5)
(4)
(6)
Normal Operation
GD
(2)
[AK4359A]
2008/10