WM8731SEFL 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

부품명

상세내역

제조사

WM8731SEFL

Portable Internet Audio CODEC with Headphone Driver and Programmable Sample Rates

Wolfson Microelectronics plc 

WM8731 / WM8731L

Production Data

POWER CONSUMPTION – WM8731

MODE

DESCRIPTION

CURRENT CONSUMPTION

TYPICAL

AVDD HP

DC

DB

VDD VDD VDD

(3.3V) (3.3V) (1.5V) (3.3V)

Record and Playback

Oscillator enabled

0

0

0

0

0

0

0

0

13.1

1.7

3.0

1.5

External MCLK

0

0

1

0

0

0

0

0

13.1

1.7

3.2

0.8

Oscillator and

0

1

1

0

0

0

1

0

12.2

1.7

3.2

0.07

CLKOUT disabled,

No microphone

Playback Only

Oscillator enabled

0

0

0

0

0

1

1

1

3.4

1.7

2.1

1.5

External MCLK

0

1

1

0

0

1

1

1

3.3

1.7

2.3

0.07

Record Only

Line Record,

0

0

0

1

1

0

1

0

9.2

-

2.6

1.3

oscillator enabled

Line Record, using

0

0

1

1

1

0

1

0

9.2

-

2.6

0.7

external MCLK

Mic Record,

0

0

0

1

1

0

0

1

8.6

-

2.7

1.5

oscillator enabled

Mic Record, using

0

0

1

1

1

0

0

1

8.6

-

2.6

0.7

external MCLK

Side Tone (Microphone Input to Headphone Output)

External clock still

running

0

0

1

0

1

1

0

1

1.6

1.7

0.08

0.7

Clock stopped

0

0

1

0

1

1

0

1

1.5

1.7

-

-

Analogue Bypass (Line-in to Line-out)

External clock still

running

0

0

1

0

1

1

1

0

2.1

1.7

0.08

0.7

Clock stopped

0

0

1

0

1

1

1

0

2.2

1.7

-

-

Standby

External clock still

0

1

1

1

1

1

1

1

16

0.3

77

65

running

Clock stopped

0

1

1

1

1

1

1

1

16

0.3

0.3

0.2

Power Down

External clock still

1

1

1

1

1

1

1

1

0.2

0.3

77

65

running

Clock stopped

1

1

1

1

1

1

1

1

0.3

0.3

0.3

0.3

Table 1 Powerdown Mode Current Consumption Examples

Notes:

1. TA = +25oC. fs = 48kHz, XTI/MCLK = 256fs (12.288MHz).

2. The data presented here was measured with the audio interface in master mode whenever the internal clock oscillator

was used, and in slave mode whenever an external clock was used (i.e. MS = 1 when OSCPD = 0 and vice versa).

However, it is also possible to use the WM8731 with MS = OSCPD = 0 or MS = OSCPD = 1.

3. All figures are quiescent, with no signal.

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

UNIT

mA

mA

mA

mA

mA

mA

mA

mA

mA

mA

mA

mA

mA

µA

µA

µA

µA

w

PD Rev 4.3 August 2006

10

Share Link: