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WM8731SEDS/R 数据表(PDF) 10 Page - Wolfson Microelectronics plc

部件名 WM8731SEDS/R
功能描述  Portable Internet Audio CODEC with Headphone Driver and Programmable Sample Rates
PDF  63 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM8731SEDS/R 数据表(HTML) 10 Page - Wolfson Microelectronics plc

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WM8731 / WM8731L
Production Data
w
PD Rev 4.3 August 2006
10
POWER CONSUMPTION – WM8731
CURRENT CONSUMPTION
TYPICAL
MODE
DESCRIPTION
AVDD
(3.3V)
HP
VDD
(3.3V)
DC
VDD
(1.5V)
DB
VDD
(3.3V)
UNIT
Record and Playback
Oscillator enabled
0
0
0
0
0
0
0
0
13.1
1.7
3.0
1.5
mA
External MCLK
0
0
1
0
0
0
0
0
13.1
1.7
3.2
0.8
mA
Oscillator and
CLKOUT disabled,
No microphone
0
1
1
0
0
0
1
0
12.2
1.7
3.2
0.07
mA
Playback Only
Oscillator enabled
0
0
0
0
0
1
1
1
3.4
1.7
2.1
1.5
mA
External MCLK
0
1
1
0
0
1
1
1
3.3
1.7
2.3
0.07
mA
Record Only
Line Record,
oscillator enabled
0
0
0
1
1
0
1
0
9.2
-
2.6
1.3
mA
Line Record, using
external MCLK
0
0
1
1
1
0
1
0
9.2
-
2.6
0.7
mA
Mic Record,
oscillator enabled
0
0
0
1
1
0
0
1
8.6
-
2.7
1.5
mA
Mic Record, using
external MCLK
0
0
1
1
1
0
0
1
8.6
-
2.6
0.7
mA
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
mA
Clock stopped
0
0
1
0
1
1
0
1
1.5
1.7
-
-
mA
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
mA
Clock stopped
0
0
1
0
1
1
1
0
2.2
1.7
-
-
mA
Standby
External clock still
running
0
1
1
1
1
1
1
1
16
0.3
77
65
µA
Clock stopped
0
1
1
1
1
1
1
1
16
0.3
0.3
0.2
µA
Power Down
External clock still
running
1
1
1
1
1
1
1
1
0.2
0.3
77
65
µA
Clock stopped
1
1
1
1
1
1
1
1
0.3
0.3
0.3
0.3
µA
Table 1 Powerdown Mode Current Consumption Examples
Notes:
1.
TA = +25
oC. 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.



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