WM8997 - Wolfson Microelectronics plc

WM8997
Preliminary Technical Data
PIN NO NAME TYPE DESCRIPTION
A10 HPDETR Analogue Input Headphone right (HPOUTR) sense input
A11 HPOUTFB1/ Analogue Input HPOUTL and HPOUTR ground feedback pin 1/
MICDET2
Microphone & accessory sense input 2
B6 HPOUTL Analogue Output Left headphone output
A6 HPOUTR Analogue Output Right headphone output
C1
IN1LN/
DMICCLK1
Analogue Input /
Digital Output
Left channel negative differential MIC input /
Digital MIC clock output 1
C2 IN1LP Analogue Input Left channel single-ended MIC input /
Left channel line input /
Left channel positive differential MIC input
D2
IN1RN/
DMICDAT1
Analogue input /
Digital Input
Right channel negative differential MIC input /
Digital MIC data input 1
D3 IN1RP Analogue Input Right channel single-ended MIC input /
Right channel line input /
Right channel positive differential MIC input
A1
IN2LN/
DMICCLK2
Analogue Input /
Digital Output
Left channel negative differential MIC input /
Digital MIC clock output 2
A2 IN2LP Analogue Input Left channel single-ended MIC input /
Left channel line input /
Left channel positive differential MIC input
B1
IN2RN/
DMICDAT2
Analogue input /
Digital Input
Right channel negative differential MIC input /
Digital MIC data input 2
B2 IN2RP Analogue Input Right channel single-ended MIC input /
Right channel line input /
Right channel positive differential MIC input
F11
IRQ ¯¯¯ Digital Output Interrupt Request (IRQ) output (default is active low)
D9 JACKDET Analogue Input Jack detect input
E11 LDOENA Digital Input Enable pin for LDO1
D11 LDOVDD Supply Supply for LDO1
E10 LDOVOUT Analogue Output LDO1 output
G10 MCLK1 Digital Input Master clock 1
F9 MCLK2 Digital Input Master clock 2
C10 MICBIAS1 Analogue Output Microphone bias 1
D10 MICBIAS2 Analogue Output Microphone bias 2
C11 MICBIAS3 Analogue Output Microphone bias 3
B11
MICDET1/ Analogue Input Microphone & accessory sense input 1/
HPOUTFB2
HPOUTL and HPOUTR ground feedback pin 2
D1, E7, E8 MICVDD Analogue Output LDO2 output decoupling pin (generated internally by WM8997)
E9
RESET ¯¯¯¯¯¯ Digital Input Digital Reset input (active low)
J10 SCLK Digital Input Control interface clock input
H8 SDA Digital Input / Output Control interface data input and output / acknowledge output
G9 SLIMCLK Digital Input / Output SLIM Bus Clock input / output
H11 SLIMDAT Digital Input / Output SLIM Bus Data input / output
J8 SPKCLK Digital Output Digital speaker (PDM) clock output
H6 SPKDAT Digital Output Digital speaker (PDM) data output
J1, J2 SPKGND Supply Speaker driver ground (Return path for SPKVDD)
G2, H2 SPKOUTN Analogue Output Speaker negative output
G1, H1 SPKOUTP Analogue Output Seaker positive output
F1, F2 SPKVDD Supply Speaker driver supply
D8 VREFC Analogue Output Bandgap reference decoupling capacitor connection
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Product Brief, April 2013, Rev 2.1
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