WM8940 datasheet(11/85 Pages) WOLFSON

Il numero della parte	WM8940

Spiegazioni elettronici	Mono CODEC with Speaker Driver

PDF	85 Pages

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Produttore elettronici	WOLFSON [Wolfson Microelectronics plc]

Homepage	http://www.wolfsonmicro.com

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Pre-Production

WM8940

Pre-Production, Rev 3.0, February 2007

POWER CONSUMPTION

Typical current consumption for various scenarios is shown below.

MODE

AVDD

(3V3)

SPKVDD

(3V3)

DCVDD

(1.8V)

DBVDD

(1.8V)

TOTAL

POWER

(MW)

Power OFF (No Clocks)

0.038

0.2

0.126

Sleep (VMID maintained, No Clocks)

0.190

0.2

0.627

Mono Record (MIC input, +20dB gain, 8kHz,

quiescent) SLAVE

4.1

0.3

14.3

Mono Record (MIC input, +20dB gain, 44.1kHz,

PLL, quiescent) MASTER

5.3

1.9

115

21.0

Mono 16Ω Headphone Playback (0.1mW, 1kHz

sine wave, ac coupled) SLAVE

2.8

1.5

1.6

3.7

17.1

Mono 8Ω BTL speaker Playback (44.1kHz,

200mW, 1kHz sine wave) SLAVE

2.8

1.6

3.8

216.8

Mono 8Ω BTL speaker Playback (44.1kHz,

PLL, quiescent) MASTER

3.9

1.5

1.8

21.1

Table 1 Power Consumption

Note:

Power consumption figures include any power dissipated in the load (e.g. in the headphone or speaker)

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