WM8523
Production Data
PIN DESCRIPTION – 24-LEAD QFN
PIN NO
NAME
DACDAT
LRCLK
BCLK
TYPE
DESCRIPTION
1
Digital In
Digital audio interface data input
2
3
4
Digital I/O
Digital I/O
Digital In
Digital audio interface left/right clock
Digital audio interface bit clock
Master clock
MCLK
I2C SOFTWARE
MODE
SPI SOFTWARE
HARDWARE MODE
MODE
SDOUT/
I2C address select
bit[1]
Serial control interface
data output pin
0 – No de-emphasis
1 – De-emphasis
5
6
Digital I/O
Digital I/O
DEEMPH
AIFMODE[1:0]
00 – LJ 24 bits
01 – I2S 24 bits
10 – RJ 16 bits
11 – RJ 24 bits
SDA/
Serial control interface
data input pin
Serial control interface
data input pin
AIFMODE0
SCLK/
Serial control interface
clock input pin
Serial control interface
clock input pin
7
Digital I/O
Digital In
AIFMODE1
C¯ ¯S/
I2C address select
bit[0]
Serial control interface
chip select
0 – Mute enabled
1 – Mute disabled
8
M¯ ¯U¯T¯E¯
0 – I2C compatible
mode select
1 – SPI compatible
mode select
Digital In
Tri-level
9
Z – Hardware mode
CIFMODE
AGND
10
11
12
13
14
15
16
17
18
19
20
21
Supply
Supply
Analogue ground
Analogue ground
AGND
Analogue Out
Supply
Analogue midrail decoupling pin
Analogue supply
VMID
AVDD
Supply
Analogue supply
AVDD
No Connect
Analogue Out
Analogue Out
No Connect
Analogue Out
Analogue Out
Supply
No internal connection
Right line output
NC
LINEVOUTR
LINEVOUTL
NC
Left line output
No internal connection
Charge Pump negative rail decoupling pin
Charge Pump fly back capacitor pin
Charge Pump ground
CPVOUTN
CPCB
LINEGND
PD, Rev 4.1, August 2011
6
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
