AK4344ET AKM [Asahi Kasei Microsystems], AK4344ET Datasheet - Page 15

• Manufacturer Part Number: AK4344ET
• Description: 100dB 96kHz 24-Bit Stereo 3.3V ?? DAC
• Manufacturer: AKM [Asahi Kasei Microsystems]

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(1) Reset by RSTN bit
When RSTN bit =0, DAC is powered down but the internal register values are not initialized. The analog outputs go to
VCOM voltage. Figure 15 shows the example of reset by RSTN bit.
Notes:
MS0641-E-00
Reset Function
(1) The analog output corresponding to digital input has the group delay (GD).
(2) Analog outputs go to VCOM voltage (VDD/2).
(3) Click noise occurs at the edges(“↑ ↓”) of the internal timing of RSTN bit. This noise is output even if “0” data is
(4) The external clocks (MCLK, BICK and LRCK) can be stopped in the reset mode (RSTN bit = “0”).
(5) There is a delay, 3~4/fs from RSTN bit “0” to the internal RSTN bit “0”, and 2~3/fs from RSTN bit “1” to the
Internal
D/A In
D/A Out
Clock In
MCLK,LRCK,BICK
RSTN bit
Internal
RSTN bit
input.
internal RSTN bit “1”.
(Digital)
(Analog)
State
Normal Operation
(1)
Figure 15. Reset Sequence Example1
GD
(3)
- 15 -
3~4/fs (6)
“0” data
Digital Block
P
(4)
Don’t care
(2)
d
(3)
2~3/fs (6)
Normal Operation
GD
(1)
2007/06