AK4340_06 AKM [Asahi Kasei Microsystems], AK4340_06 Datasheet - Page 15

• Manufacturer Part Number: AK4340_06
• Description: 192kHz 24-Bit Stereo ?? DAC with 2Vrms Output
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
The AK4340 is placed in the power-down mode by bringing PDN pin “L” and the analog outputs are GND. Figure 6
shows an example of the system timing at the power-down and power-up.
Notes:
MS0501-E-00
Power-down
(1) The analog output corresponding to digital input has the group delay (GD).
(2) Analog outputs are floating (Hi -Z) at the power-down mode.
(3) Click noise occurs at the edge of PDN signal. This noise is output even if “0” data is input.
(4) The external clocks (MCLK, BICK and LRCK) can be stopped in the power-down mode (PDN = “L”).
(5) Please mute the analog output externally if the click noise (3) influences system application.
Internal
D/A In
D/A Out
Clock In
MCLK, LRCK, BICK
PDN
External
MUTE
DZFL/DZFR
(Digital)
(Analog)
The timing example is shown in this figure.
State
(5)
Normal Operation
Figure 12. Power-down/up Sequence Example
GD
(1)
(3)
(6)
- 15 -
(4)
Mute ON
Power-down
“0” data
Don’t care
(2)
(3)
Normal Operation
GD
(1)
[AK4340]
2006/04