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WM8281ECS/R Datenblatt(PDF) 392 Page - Cirrus Logic

Teilenummer WM8281ECS/R
Bauteilbeschribung  Low Power Audio System with Ambient Noise Cancellation and Echo Cancellation
PDF  392 Pages
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Hersteller  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8281ECS/R Datenblatt(HTML) 392 Page - Cirrus Logic

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WM8281
392
Rev 4.0
REVISION HISTORY
DATE
REV
DESCRIPTION OF CHANGES
PAGE
CHANGED BY
23/01/14
2.0
Initial version
PH
13/06/14
3.0
Additional notes on SLIMbus Value Map & Information Map.
JTAG Interface input pins all have internal pull-down resistors.
Clarification of the TRIG_ON_STARTUP (automatic sample rate
detection) behaviour.
Typical performance data (power consumption and latency) added.
161-170
10, 305, 309
256
27, 28
PH
06/05/15
3.1
Clarification of LDOENA & LDOVDD pin requirements.
Electrical Characteristics updated.
Thermal characteristics data added.
Power consumption data updated.
Correction to PWMn_LVL description.
Updates to DSP Clocking registers and controls.
Added description of DSP DMA functions.
Class-D phase inversion noted.
Clarification to the AEC Loopback path description.
Bus-keeper function on GPIO pins is removed.
Clarification of Sleep Mode control using external DCVDD (not LDO1).
Clocking required for FLL Interrupt.
Updated recommendations for DCVDD decoupling.
PH
11/01/16
4.0
Clarification of DCVDD, GPSWA, GPSWB voltage limits
Electrical Characteristics updated.
Power consumption data updated (earpiece and speaker playback)
Sample Rate control requirements updated (*RATE, *FSL, *FSH)
Clarification of SLIMbus requirements for different TP options.
Recommended SLIMbus subframe mode (SM) selection noted.
FLL set-up procedure updated
Correction to FLLn_SS_SEL description.
Noted constraints for using WSEQ_START to trigger WSEQ.
14, 22
19-21
29
102-120
168
173
276-278
287
296
PH



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