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WM8281ECS/R Scheda tecnica(PDF) 9 Page - Cirrus Logic

Il numero della parte WM8281ECS/R
Spiegazioni elettronici  Low Power Audio System with Ambient Noise Cancellation and Echo Cancellation
PDF  392 Pages
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Produttore elettronici  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8281ECS/R Scheda tecnica(HTML) 9 Page - Cirrus Logic

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WM8281
Rev 4.0
9
PIN NO
NAME
TYPE
DESCRIPTION
B7
CP1VOUT2P
Analogue Output
Charge pump 1 positive output 2 decoupling pin
D7
CP2CA
Analogue Output
Charge pump 2 fly-back capacitor pin
D6
CP2CB
Analogue Output
Charge pump 2 fly-back capacitor pin
D5
CP2VOUT
Analogue Output
Charge pump 2 output decoupling pin / Supply for LDO2
B5
CPGND
Supply
Charge pump 1 & 2 ground (Return path for CPVDD)
A5
CPVDD
Supply
Supply for Charge Pump 1 & 2
K14
DBVDD1
Supply
Digital buffer (I/O) supply (core functions and Audio Interface 1)
L11
DBVDD2
Supply
Digital buffer (I/O) supply (for Audio Interface 2)
L7
DBVDD3
Supply
Digital buffer (I/O) supply (for Audio Interface 3)
J14, L8
DCVDD
Supply
Digital core supply
H14, L9,
L10, L14
DGND
Supply
Digital ground
(Return path for DCVDD, DBVDD1, DBVDD2 and DBVDD3)
F3
DMICCLK4
Digital Output
Digital MIC clock output 4
E3
DMICDAT4
Digital Input
Digital MIC data input 4
H11
GPIO1
Digital Input / Output
General Purpose pin GPIO1.
The output configuration is selectable CMOS or Open Drain.
J10
GPIO2
Digital Input / Output
General Purpose pin GPIO2.
The output configuration is selectable CMOS or Open Drain.
H6
GPIO3
Digital Input / Output
General Purpose pin GPIO3.
The output configuration is selectable CMOS or Open Drain.
F13
GPIO5
Digital Input / Output
General Purpose pin GPIO5.
The output configuration is selectable CMOS or Open Drain.
C12
GPSWA
Analogue Input /
Output
General Purpose bi-directional switch contact
D12
GPSWB
Analogue Input /
Output
General Purpose bi-directional switch contact
B13
HPDETL
Analogue Input
Headphone left (HPOUT1L) sense input
B12
HPDETR
Analogue Input
Headphone right (HPOUT1R) sense input
B14
HPOUT1FB1/
MICDET2
Analogue Input
HPOUT1L and HPOUT1R ground feedback pin 1/
Microphone & accessory sense input 2
A13
HPOUT1L
Analogue Output
Left headphone 1 output
A12
HPOUT1R
Analogue Output
Right headphone 1 output
B11
HPOUT2FB
Analogue Input
HPOUT2L and HPOUT2R ground loop noise rejection feedback
A11
HPOUT2L
Analogue Output
Left headphone 2 output
A10
HPOUT2R
Analogue Output
Right headphone 2 output
B9
HPOUT3FB
Analogue Input
HPOUT3L and HPOUT3R ground loop noise rejection feedback
A9
HPOUT3L
Analogue Output
Left headphone 3 output
A8
HPOUT3R
Analogue Output
Right headphone 3 output
A4
IN1LN/
DMICCLK1
Analogue Input /
Digital Output
Left channel negative differential Mic/Line input /
Digital MIC clock output 1
B4
IN1LP
Analogue Input
Left channel single-ended Mic/Line input /
Left channel positive differential Mic/Line input
D4
IN1RN/
DMICDAT1
Analogue input /
Digital Input
Right channel negative differential Mic/Line input /
Digital MIC data input 1
C4
IN1RP
Analogue Input
Right channel single-ended Mic/Line input /
Right channel positive differential Mic/Line input
A3
IN2LN/
DMICCLK2
Analogue Input /
Digital Output
Left channel negative differential Mic/Line input /
Digital MIC clock output 2
B3
IN2LP
Analogue Input
Left channel single-ended Mic/Line input /
Left channel positive differential Mic/Line input
D3
IN2RN/
DMICDAT2
Analogue input /
Digital Input
Right channel negative differential Mic/Line input /
Digital MIC data input 2
C3
IN2RP
Analogue Input
Right channel single-ended Mic/Line input /
Right channel positive differential Mic/Line input



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