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WM8721 Datasheet(PDF) 6 Page - Wolfson Microelectronics plc

Part # WM8721
Description  Internet Audio DAC with Integrated Headphone Driver
PDF  34 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8721 Datasheet(HTML) 6 Page - Wolfson Microelectronics plc

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WM8721
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WOLFSON MICROELECTRONICS LTD
PP Rev 1.3 November 2000
6
POWER CONSUMPTION
CURRENT CONSUMPTION
MODE DESCRIPTION
MIN
TYP
MAX
UNITS
Playback
00
0
6
mA
Standby
01
1
0.05
mA
Power Down
1X
1
0.01
mA
Table 1 Powerdown Mode Current Consumption Examples
Notes:
1.
AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25
oC. Slave Mode, fs = 48kHz,
MCLK = 256fs (12.288MHz).
2.
All figures are quiescent, with no signal.
3.
The power dissipation in the headphone itself not included in the above table.
MASTER CLOCK TIMING
MCLK
t
XTIL
t
XTIH
t
XTIY
Figure 1 System Clock Timing Requirements
Test Conditions
AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25
oC, Slave Mode fs = 48kHz, MCLK =
256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
System Clock Timing Information
MCLK System clock pulse width high
TXTIH
18
ns
MCLK System clock pulse width low
TXTIL
18
ns
MCLK System clock cycle time
TXTIY
54
ns
MCLK Duty cycle
40:60
60:40



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