AK4319A Datasheet, PDF (3/18 Pages) Asahi Kasei Microsystems – 18Bit SCF DAC

ASAHI KASEI
[AK4319A]
PIN/FUNCTION
No. Pin Name I/O
Function
1 DIF1
I Digital Input Format Pin
(Internal Pull-down pin)
2 DVDD
- Digital Power Supply
3 DVSS
- Digital Ground Pin
4 LRCK
I L/R Clock Pin
5 BICK
I Audio Serial Data Clock Pin
6 SDATA
I Audio Serial Data Input Pin
2's complement MSB-first data is input on this pin.
7 PD
I Power-Down Mode Pin
When at "L", the AK4319A is in power-down mode and is held in reset.
The AK4319A should always be reset upon power-up.
8 XTI
I Master Clock Input Pin
A crystal can be connected between this pin and XTO, or an external
CMOS clock can be input on XTI.
9 XTO
O Crystal Oscillator Output Pin
When an external clock is input, this pin should be left floating.
10 CLKO
O Clock Output Pin
The inverted XTI clock is output.
11 SMUTE
I Soft Mute Pin
(Internal Pull-down pin)
When this pin goes "H", soft mute cycle is initiated.
When returning "L", the output mute releases.
12 DEM0
I De-emphasis Frequency Select Pin
13 DEM1
I De-emphasis Frequency Select Pin
14 CKS
I Master Clock Select Pin
(Internal Pull-down pin)
"L": MCLK=256fs,"H": MCLK=384fs
15 TST
I Test Pin
(Internal Pull-down pin)
Must be left floating or tied to AVSS.
16 AOUTR- O Rch Negative analog output pin
17 AOUTR+ O Rch Positive analog output pin
18 AOUTL-
O Lch Negative analog output pin
19 AOUTL+ O Lch Positive analog output pin
20 VREF
O Voltage Reference Output Pin, 3.0V (typ, respects to AVSS)
Normally connected to AVSS with a 0.1uF ceramic capacitor in parallel
witha 10uF electrolytic capacitor.
21 AVDD
- Analog Power Supply Pin
22 AVSS
- Analog Ground pin
23 DZF
O Zero Input Detect Pin
24 DIF0
I Digital Input Format Pin
(Internal Pull-down pin)
Note: All input pins except pull-down pins should not be left floating.
M0011-E-01
-3-
1998/6