WM8706
Production Data
PIN DESCRIPTION
PIN
1
NAME
LRCIN
DIN
TYPE
Digital Input
Digital Input
Digital Input
NC
DESCRIPTION
DAC Sample Rate Clock Input
2
Serial Audio Data Input
Audio Data Bit Clock Input.
No internal connection
3
BCKIN
4
5
ZERO
Digital Output (Open Drain) Infinite ZERO Detect Flag (L=IZD detected, H=IZD not detected)
6
NC
Supply
No Internal Connection
7
DGND
DVDD
Digital Ground Supply
8
Supply
Digital Positive Supply
9
NC
No Internal Connection
10
11
12
13
14
15
16
17
18
19
20
21
22
23
NC
No Internal Connection
NC
No Internal Connection
NC
No Internal Connection
VOUTR
AGND
AVDD
Analogue Output
Supply
Right Channel DAC Output
Analogue Ground Supply
Supply
Analogue Positive Supply
VOUTL
Analogue Output
NC
Left Channel DAC Output
No Internal Connection
VMID
VREFN
VREFP
ZERO
Analogue Output
Supply
Mid Rail Decoupling Point
DAC Negative Reference – normally AGND, must not be below AGND
DAC Positive Reference – normally AVDD, must not be above AVDD
Infinite Zero Detect Flag
Supply
Digital Output
NC
No Internal Connection
CSBIWO
Digital Input
Software Mode: 3-Wire Serial Control Chip Select
Hardware Mode: Input Word Length, Pull Up
Control Mode Selection (Low = Hardware, High = Software), Pull Down
24
25
MODE
Digital Input
MUTEB
Digital Bi-directional
Mute Control (L = Mute on, H = Mute off, Z = Automute Enabled), Pull
Up
26
27
28
MDDM0
MCDM1
MLIIS
Digital Bi-directional
Digital Input
Software Mode: 3-Wire Serial Control Data Input:
Hardware Mode: De-Emphasis
Software Mode: 3-Wire Serial Control Clock Input
Hardware Mode: De-Emphasis, Pull Down
Software Mode 3-Wire Serial Control Load Input
Hardware Mode: Input Data Format Selection, Pull Up
Digital Input
Note:
Digital input pins have Schmitt trigger input buffers.
PD Rev 4.1 July 2005
4
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
