AK4458VN Datasheet, PDF (9/83 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 8ch Premium DAC

[AK4458]
No. Pin Name
I/O Function
PD State
22 AOUTR1N O Rch Negative Analog Output 1 Pin
Hi-Z
23 AOUTR1P O Rch Positive Analog Output 1 Pin
Hi-Z
24 AOUTL2P O Lch Positive Analog Output 2 Pin
Hi-Z
25 AOUTL2N O Lch Negative Analog Output 2 Pin
Hi-Z
26 VREFL2
I Negative Voltage Reference Input Pin, AVSS
Hi-Z
27 VREFH2
I Positive Voltage Reference Input Pin, AVDD
Hi-Z
28 AOUTR2N O Rch Negative Analog Output 2 Pin
Hi-Z
29 AOUTR2P O Rch Positive Analog Output 2 Pin
Hi-Z
30 AVSS
- Analog Ground Pin
－
31 AVDD
- Analog Power Supply Pin, 3.0V5.5V
－
32 AOUTL3P O Lch Positive Analog Output 3 Pin
Hi-Z
33 AOUTL3N O Lch Negative Analog Output 3 Pin
Hi-Z
34 VREFH3
I Positive Voltage Reference Input Pin, AVDD
Hi-Z
35 VREFL3
I Negative Voltage Reference Input Pin, AVSS
Hi-Z
36 AOUTR3N O Rch Negative Analog Output 3 Pin
Hi-Z
37 AOUTR3P O Rch Positive Analog Output 3Pin
Hi-Z
38 AOUTL4P O Lch Positive Analog Output 4 Pin
Hi-Z
39 AOUTL4N O Lch Negative Analog Output 4 Pin
Hi-Z
40 VREFH4
I Positive Voltage Reference Input Pin, AVDD
Hi-Z
41 VREFL4
I Negative Voltage Reference Input Pin, AVSS
Hi-Z
42 AOUTR4N O Rch Negative Analog Output 4 Pin
Hi-Z
43 AOUTR4P O Rch Positive Analog Output 4 Pin
Hi-Z
44 LDOE
I
Internal LDO Enable Pin.
“L”: Disable, “H”: Enable
Hi-Z
45 TVDD
- Digital Power Supply Pin, 3.0V3.6V
－
46 DVSS
- Digital Ground Pin
－
47 VDD18
O
LDO Output Pin (LDOE pin = “H”)
This pin should be connected to DVSS with 1.0µF.
(Note 4)
I 1.8V Power Input Pin (LDOE pin = “L”)
Power-Down & Reset Pin
48 PDN
I When this pin is “L”, the AK4458 is powered-down and the
Hi-Z
control registers are reset to default state.
Note 2. All input pins except internal pull-up/down pins should not be left floating.
Note 3. PCM mode and DSD mode are controlled by registers. Daisy Chain mode is controlled by both
registers and pins.
Note 4. This pin outputs DVSS when the LDOE pin = “H” and Hi-z when the LDOE pin = “L”.
■ Handling of Unused Pin
The unused I/O pins should be processed appropriately as below.
Classification
Analog
Digital
Pin Name
AOUTL1P/N, AOUTR1P/N
AOUTL2P/N, AOUTR2P/N
AOUTL3P/N, AOUTR3P/N
AOUTL4P/N, AOUTR4P/N
DZF
SDTI1-4, DSDR3, DSDL4, DSDR4
Setting
These pins must be open.
This pin must be open.
These pins must be connected to DVSS
014011794-E-00
-9-
2015/01