AK4520A Datasheet, PDF (3/19 Pages) Asahi Kasei Microsystems – 100dB 20Bit Stereo ADC & DAC

ASAHI KASEI
[AK4520A]
PIN/FUNCTION
No. Pin Name I/O
Function
1 VREFH
I Positive Voltage Reference Input Pin, VA
Used as a positive voltage reference by ADC & DAC. VREFH is connected
externally to filtered VA.
2 VREFL
I Negative Voltage Reference Input Pin, AGND
Used as a negative voltage reference by ADC & DAC. VREFL is connected
externally to AGND.
3 AINR+
I Rch Analog Positive Input pin
4 AINR-
I Rch Analog Negative Input Pin
5 AINL+
I Lch Analog Positive Input pin
6 AINL-
I Lch Analog Negative Input Pin
7 VA
- Analog Power Supply Pin
8 AGND
- Analog Ground pin
9 DIF0
I Audio Data Interface Format Pin
10 DIF1
I Audio Data Interface Format Pin
11 LRCK
I Input/Output Channel Clock Pin
12 SCLK
I Audio Serial Data Clock Pin
13 SDTI
I Audio Serial Data Input Pin
14 SDTO
O Audio Serial Data Output Pin
15 MCLK
I Master Clock Input Pin
16 DEM0
I De-emphasis Frequency Select Pin
17 DEM1
I De-emphasis Frequency Select Pin
18 TST3
I/O Test Pins (Pull down pins)
19 TST2
I/O Must be left open or connected to DGND.
20 TST1
I
21 VD
- Digital Power Supply Pin
22 DGND
- Digital Ground Pin
23 PWDA
I DAC Power-Down Mode Pin
24 PWAD
I ADC Power-Down Mode Pin
25 CMODE
I Master Clock Select Pin
"H": 384fs, "L": 256fs
26 AOUTL
O Lch analog output pin
27 AOUTR
O Rch analog output pin
28 VCOM
O Common Voltage Output Pin, VA/2
Note: All input pins except pull-down pins should not be left floating.
0163-E-00
-3-
1997/3