WM8985GEFLSLASHR datasheet(6/118 Pages) WOLFSON

6 / 118 page

WM8985

Pre-Production

PP, Rev 3.5, March 2007

PIN DESCRIPTION

NAME

TYPE

DESCRIPTION

LIP

Analogue input

Left MIC pre-amp positive input

LIN

Analogue input

Left MIC pre-amp negative input

L2/GPIO2

Analogue input

Left channel line input/secondary mic pre-amp positive input/GPIO2 pin

RIP

Analogue input

Right MIC pre-amp positive input

RIN

Analogue input

Right MIC pre-amp negative input

R2/GPIO3

Analogue input

Right channel line input/secondary mic pre-amp positive input/GPIO3 pin

LRC

Digital Input / Output

DAC and ADC sample rate clock

BCLK

Digital Input / Output

Digital audio bit clock

ADCDAT

Digital Output

ADC digital audio data output

DACDAT

Digital Input

DAC digital audio data input

MCLK

Digital Input

Master clock input

DGND

Supply

Digital ground

DCVDD

Supply

Digital core logic supply

DBVDD

Supply

Digital buffer (I/O) supply

CSB/GPIO1

Digital Input / Output

3-Wire control interface chip Select / GPIO1 pin

SCLK

Digital Input

3-Wire control interface clock input / 2-wire control interface clock input

SDIN

Digital Input / Output

3-Wire control interface data input / 2-Wire control interface data input

MODE

Digital Input

Control interface selection

AUXL

Analogue input

Left auxiliary input

AUXR

Analogue input

Right auxiliary input

OUT4

Analogue Output

Right line output / mono mix output

OUT3

Analogue Output

Left line output

ROUT2

Analogue Output

Class D or class AB headphone output right

AGND2

Supply

Analogue ground (ground reference for ROUT2/LOUT2 and OUT3/OUT4)

LOUT2

Analogue Output

Class D or class AB headphone output left

AVDD2

Supply

Analogue supply (feeds output amplifiers ROUT2/LOUT2 and OUT3/OUT4)

VMID

Reference

Decoupling for ADC and DAC reference voltage

AGND1

Supply

Analogue ground (ground reference for all input amplifiers, PLL, ADC and

DAC, internal bias circuits, output amplifiers LOUT1, ROUT1)

ROUT1

Analogue Output

Class AB headphone or line output right

LOUT1

Analogue Output

Class AB headphone or line output left

AVDD1

Supply

Analogue supply (feeds all input amplifiers, PLL, ADC and DAC, internal bias

circuits, output amplifiers LOUT1, LOUT2))

MICBIAS

Analogue Output

Microphone bias

Note:

It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB. Refer to

the application note WAN_0118 on “Guidelines on How to Use QFN Packages and Create Associated PCB Footprints”

WM8985GEFL/R датащи(PDF) 6 Page - Wolfson Microelectronics plc

WM8985GEFL/R датащи(HTML) 6 Page - Wolfson Microelectronics plc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL