WM8737 datasheet(10/38 Pages) WOLFSON

10 / 38 page

WM8737L

Preliminary Technical Data

AI Rev 3.0 May 2004

MVDD = 1.8V, AVDD = 1.8V, DBVDD = 1.8V, DCVDD = 1.5V, Normal Power Mode, no MICBIAS or mic preamps

OFF

000000000

0.000

(<0.01)

0.000

(<0.01)

0.007

(<0.01)

0.011

(<0.02)

Standby

110000000

0.698

(0.55)

0.004

(<0.01)

0.069

(<0.01)

1.367

Mono (L/R)

111101000 / 111010100

3.453

(4.6)

0.010

1.910

9.098

Stereo / Digital Mono Mix

111111100

6.109

(8.3)

0.017

1.955

13.959

Analogue mono mix

(without dc monitoring via

Right ADC)

111111000

4.574

(5.9)

0.010

1.910

11.116

Analogue mono mix

(with continuous dc

monitoring via Right ADC)

111111100

6.109

(8.3)

0.017

1.940

13.937

Using MICBIAS in 0.9 X

AVDD mode in addition to

any of the above

Set appropriate MICBIAS[1:0] bits in

power management register

+0.252

(+0.45)

+0.454

Using microphone boost

preamplifiers in addition to

any of the above

Set appropriate MBCTRL[1:0] bits in

bits in registers 02h and 03h

+0.738

(+0.7)

+1.328

MVDD = 3.3V, AVDD = 3.3V, DBVDD = 3.3V, DCVDD = 1.5V, Normal Power Mode, no MICBIAS or mic preamps

OFF

000000000

0.001

(<0.01)

0.000

(<0.01)

0.007

(<0.01)

0.014

(<0.02)

Standby

110000000

1.288

(1.1)

0.007

(<0.01)

0.064

(<0.01)

4.371

Mono (L/R)

111101000 / 111010100

4.632

(5.8)

0.020

1.905

18.210

Stereo / Digital Mono Mix

111111100

7.750

(10.1)

0.032

1.950

28.606

Analogue mono mix

(without dc monitoring via

Right ADC)

111111000

5.996

(7.6)

0.020

1.890

22.688

Analogue mono mix

(with continuous dc

monitoring via Right ADC)

111111100

7.750

(10.1)

0.033

1.960

28.624

Using MICBIAS in 0.9 X

AVDD mode in addition to

any of the above

Set appropriate MICBIAS[1:0] bits in

power management register

+0.446

(+0.85)

+1.472

Using microphone boost

preamplifiers in addition to

any of the above

Set appropriate MBCTRL[1:0] bits in

bits in registers 02h and 03h

+1.406

(+1.3)

+4.640

Table 1 Supply Current Consumption (see also “Power Management” section)

Notes:

TA = +25

oC, Slave Mode, fs = 48kHz, MCLK = 12.288 MHz (256fs), 24-bit data

All figures are quiescent, with no signal.

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