User Guide

30
30DN-S3000
AK4353VF Terminal Function
No. Pin Name I/O Description
1 MCKO O Master Clock Output Pin
Same frequency as MCKI is output
2 TX O Transmit Channel Output Pin
3 DVDD -
Digital Power Supply Pin, +2.7∼+5.5V
4 DVSS - Digital Ground Pin, 0V
5 MCKI I Master Clock Input Pin
6 BICK I Serial Data Clock Pin
7 SDTI I Serial Data Input Pin
8 LRCK I Serial Input Channel Clock Pin
9 PDN I Power-Down Pin
When “L”, the circuit is in power-down mode.
The AK4353 should always be reset upon power-up.
10 CSN I Chip Select Pin at 3-wire Serial control mode
This pin should be connected to DVDD at I
2
C Bus control mode.
SCL I Control Clock Pin at I
2
C bus control mode11
CCLK I Control Clock Pin at 3-wire serial control mode
SDA I/O Control Data Input/Output Pin at I
2
C Bus control mode12
CDTI I Control Data Input Pin at 3-wire serial control mode
13 TST I Test pin
This pin should be connected to DVDD.
14 TTL I Digital Input Level Select Pin
“L”: CMOS, “H”: TTL
15 I2C I Control Mode Select Pin
“L”: 3-wire Serial, “H”: I
2
C Bus
16 CAD0 I Chip Address Select 0 Pin
17 CAD1 I Chip Address Select 1 Pin
18 AOUTR O Rch Analog Output Pin
19 AOUTL O Lch Analog Output Pin
20 VCOM O Common Voltage Output Pin, AVDD/2
Used for analog common voltage.
Large external capacitor is used to reduce power supply noise.
21 AVSS - Analog Ground Pin
22 AVDD - Analog Power Supply Pin
23 NC - No Connect
Nothing should be connected externally to this pin.
24 DZF O Zero Input Detect Pin
When SDTI follows a total 8192 LRCK cycles with “0” input data
or RSTN = “0”, this pin goes to “H”.
Note: No input pins should be left floating.