AK4392 AKM [Asahi Kasei Microsystems], AK4392 Datasheet - Page 28

• Manufacturer Part Number: AK4392
• Description: High Performance 120dB Premium 32-Bit DAC
• Manufacturer: AKM [Asahi Kasei Microsystems]

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(1) RESET by RSTN bit = “0”
When the RSTN bit = “0”, the AK4392’s digital block is powered down, but the internal register values are not initialized.
In this time, the analog outputs go to VCML/R voltage and DZFL/DZFR pins are “H”.
reset by RSTN bit.
Notes:
MS1045-E-02
Reset Function
(1) The analog output corresponding to digital input has group delay (GD).
(2) Analog outputs settle to VCOM voltage.
(3) Small pop noise occurs at the edges(“↑ ↓”) of the internal timing of RSTN bit. This noise is output even if “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
(6) Mute the analog output externally if click noise (3) and Hi-Z (2) adversely affect system performance
(4) The DZF pins change to “H” when the RSTN bit becomes “0”, and return to “L” at 2/fs after RSTN bit becomes
Internal
D/A In
D/A Out
RSTN bit
Internal
RSTN bit
DZF
“1”.
data is input.
internal RSTN bit “1”.
(Digital)
(Analog)
State
Normal Operation
(1)
Figure 14. Reset Sequence Example 1
GD
(3)
- 28 -
3~4/fs (5)
D igital Block
P
“0 ” data
(6)
(2)
d
(3)
2~3/fs (5)
2/ fs(4)
Normal O peration
Figure 14
GD
shows an example of
(1)
[AK4392]
2009/04