WM8731_09 Datasheet, PDF (14/64 Pages) Wolfson Microelectronics plc – Portable Internet Audio CODEC with Headphone Driver and Programmable Sample Rates

WM8731 / WM8731L
Production Data
POWER CONSUMPTION – WM8731L
MODE
DESCRIPTION
CURRENT CONSUMPTION
TYPICAL
AVDD HP
DC
DB
VDD VDD VDD
(1.8V) (1.8V) (1.5V) (1.8V)
Record and Playback
All active, oscillator 0
0
0
0
0
0
0
0
6
enabled
0.6
2.7
0.9
Playback Only
Oscillator enabled
0
0
0
0
0
1
1
1
1.7
0.6
1.8
0.9
Record Only
Line Record,
0
0
0
1
1
0
1
0
3.9
-
2.4
0.9
oscillator enabled
Mic Record,
0
0
0
1
1
0
0
1
3.6
-
2.4
0.9
oscillator enabled
Side Tone (Microphone Input to Headphone Output)
Clock stopped
0
0
1
0
1
1
0
1
0.8
0.6
-
-
Analogue Bypass (Line-in to Line-out)
Clock stopped
0
0
1
0
1
1
1
0
1.1
0.6
-
-
Standby
Clock stopped
0
1
1
1
1
1
1
1
8
-
-
-
Power Down
Clock stopped
1
1
1
1
1
1
1
1
0.2
0.2
0.3
0.2
Table 2 Powerdown Mode Current Consumption Examples
Notes:
1. AVDD, HPVDD, DBVDD = 1.8V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25^oC. Slave Mode, fs = 48kHz,
XTI/MCLK = 256fs (12.288MHz).
2. All figures are quiescent, with no signal.
3. All figures are measured with the audio interface in master mode (MS = 1).
4. The power dissipation in the headphone itself is not included in the above table.
UNIT
mA
mA
mA
mA
mA
mA
μA
μA
w
PD, Rev 4.8, April 2009
14