AK4456 Datasheet, PDF (9/84 Pages) Asahi Kasei Microsystems – 115dB 768kHz Advanced 32-bit DAC

[AK4456]
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
- Negative Voltage Reference Input Pin, AVSS
Hi-Z
27 VREFH2
- 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 Positive Analog Output 3 Pin
Hi-Z
34 VREFH3
- Positive Voltage Reference Input Pin, AVDD
Hi-Z
35 VREFL3
- 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 TST3
- This pin must be connected to AVSS.
Hi-Z
39 TST4
- This pin must be connected to AVSS.
Hi-Z
40 TST5
- This pin must be connected to AVSS.
Hi-Z
41 TST6
- This pin must be connected to AVSS.
Hi-Z
42 TST7
- This pin must be connected to AVSS.
Hi-Z
43 TST8
- This pin must be connected to AVSS.
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
This pin should be connected to DVSS via 1.0µF.
(Note 4)
I 1.8V Power Input Pin (LDOE pin = “L”)
48 PDN
Power-Down & Reset Pin
I When this pin is “L”, the AK4456 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 must not be allowed to float.
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 must be connected appropriately.
Classification Pin Name
Analog
AOUTL1P/N, AOUTR1P/N
AOUTL2P/N, AOUTR2P/N
AOUTL3P/N, AOUTR3P/N
Digital
DZF
SDTI1-3
Setting
These pins must be open.
This pin must be open.
These pins must be connected to DVSS
015006886-E-00
-9-
2015/06