XWM8711EDS Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

Número de pieza

componentes Descripción

Fabricante

XWM8711EDS

Internet Audio DAC with Integrated Headphone Driver

Wolfson Microelectronics plc 

WM8711

POWER CONSUMPTION

MODE DESCRIPTION

Product Preview

CURRENT CONSUMPTION

Playback

0

0

0

0

0

Playback Oscillator and 0

1

1

0

0

CLKOUT disabled

Standby

0

1

1

1

1

Power Down

1

X

X

X

1

Table 1 Powerdown Mode Current Consumption Examples

MIN

TYP

MAX UNITS

7

mA

6

mA

0.05

mA

0.01

mA

Notes:

1. AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25oC. Slave Mode, fs = 48kHz,

MCLK = 256fs (12.288MHz).

2. All figures are quiescent, with no signal.

3. The power dissipation in the headphone itself not included in the above table.

MASTER CLOCK TIMING

MCLK

tXTIL

tXTIH

tXTIY

Figure 1 System Clock Timing Requirements

Test Conditions

AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25oC, Slave Mode fs = 48kHz, MCLK =

256fs unless otherwise stated.

PARAMETER

SYMBOL

System Clock Timing Information

MCLK System clock pulse width high

TXTIH

MCLK System clock pulse width low

TXTIL

MCLK System clock cycle time

TXTIY

MCLK Duty cycle

TEST CONDITIONS

MIN

18

18

54

40:60

TYP

MAX

UNIT

ns

ns

ns

60:40

WOLFSON MICROELECTRONICS LTD

PP Rev 1.2 November 2000

6

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