AK4452 Datasheet, PDF (9/82 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 2ch Premium DAC

[AK4452]
No
.
Pin Name
I/O Function
PD Status
26 TST6
I Test Pin. This pin must be connected to AVSS.
Hi-Z
27 TST7
I Test Pin. This pin must be connected to AVSS.
Hi-Z
28 LDOE
I
Internal LDO Enable Pin.
“L”: Disable, “H”: Enable
Hi-Z
29 TVDD
- Digital Power Supply Pin, 3.0V3.6V
－
30 DVSS
- Digital Ground Pin
－
(LDOE pin = “H”)
O LDO Output Pin
31 VDD18
This pin should be connected to DVSS with 1.0µF.
(Note 4)
I
(LDOE pin = “L”)
1.8V Power Input Pin
Power-Down & Reset Pin
32 PDN
I When “L”, the AK4452 is powered-down and the control
Hi-Z
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
Digital
TDMO1, DZF
Setting
These pins must be open.
This pin must be open.
015002211-E-02
-9-
2015/08