AK4452 Datasheet, PDF (76/82 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 2ch Premium DAC

[AK4452]
(2) LDOE pin = “L”, I²C-bus Control Mode(I2C pin = “H”)
Digital 3.3V
Digital 1.8V
Analog 5.0V Analog 5.0V
DSP
Micro-
Controller
10u
+
1u
+
0.1u
1 MCLK
2 BICK
3 LRCK
4 SDTI1
5 TST1
6 TDMO1
7 DZF
8 CAD1
TST4 24
TST3 23
TST2 22
AVDD 21
+
AVSS 20 ^{0.1u 10u}
AOUTR1P 19
AOUTR1N ₁₈
VREFH1
N
17
0.1u
R1ch
LPF
R1ch
Mute
R1ch Out
L1ch
LPF
L1ch
Mute
L1ch Out
Digital
Ground
Analog
Ground
+
Electrolytic Capacitor
Ceramic Capacitor
Notes:
- Chip Address = “00”. BICK = 64fs, LRCK = fs
- Power lines of AVDD and VREFH1 should be distributed separately from LDO and etc. while keeping low
impedance. If it is not possible, it is recommended to connect a LPF composed by a 10Ω resistor and a
220uF capacitor between VREFL1 and VREFH1.
- DVSS and AVSS must be connected to the same potential.
- All digital input pins should not be allowed to float.
Figure 71. Typical Connection Diagram (AVDD=5V, TVDD=3.3V, VDD18=1.8V)
015002211-E-02
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2015/08