WM9713LGEFLSLASHV datasheet(21/108 Pages) WOLFSON

21 / 108 page

Pre-Production

WM9713L

PP Rev 3.0 June 2006

PCM INTERFACE MODES

The WM9713L PCM audio interface may be configured in one of four modes:

•

Disabled Mode: The WM9713L disables and tri-states all PCM interface pins. Any

clock input is ignored and ADC/DAC data is not transferred.

•

Slave Mode: The WM9713L accepts PCMCLK and PCMFS as inputs from an

external source.

•

Master Mode: The WM9713L generates PCMCLK and PCMFS as outputs.

•

Partial Master Mode: The WM9713L generates PCMCLK as an output, and

accepts PCMFS as an external input.

PCM AUDIO DATA FORMATS

Four different audio data formats are supported:

•

DSP mode

•

Left justified

•

Right justified

•

All four of these modes are MSB first. They are described below. Refer to the Electrical

Characteristic section for timing information.

The PCM Interface may be configured for Mono mode, where only one channel of ADC data is

output. In this mode the interface should be configured for DSP mode. A short or long frame sync is

supported and the MSB is available on either the 1st (mode B) or 2nd (mode A) rising edge of

VXCLK.

Note that when operating in stereo mode the mono Voice DAC always uses the left channel data as

its input.

PCMFS

PCMCLK

PCMADC/

PCMDAC

n-2 n-1

LSB

MSB

1 PCMCLK

Input Word Length (WL)

1/fs

Figure 5 PCM Interface Mono Mode (mode A, FSP=0)

WM9713LGEFL/V 数据表(PDF) 21 Page - Wolfson Microelectronics plc

WM9713LGEFL/V 数据表(HTML) 21 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

数据表下载