wm2002 Wolfson Microelectronics plc, wm2002 Datasheet - Page 4

• Manufacturer Part Number: wm2002
• Description: Stereo Headphone Driver With Wolfson Myzonetm Ambient Noise Cancellation
• Manufacturer: Wolfson Microelectronics plc

WM2002
PIN DESCRIPTION
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PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
1
2
3
4
5
6
7
8
9
LED/
DMICDAT5
SCAN
MON
ADDR
SDA
SCLK
LDO1VDD
LDO1VOUT
MICVDD
MICBIAS
LDO3VOUT
AGND
MICLN
MICLP
MICRP
MICRN
INLP
INLN
INRN
INRP
VMIDC
LDO4VOUT
HPOUTLP
HPOUTLN
HPGND
HPOUTRN
HPOUTRP
CPVOUT
BATTVDD
CFB2
CFB1
CPGND
DC1LX
DC1VOUT
SYSVDD
XTO
XTI
DGND
PROGVDD
LDO2VOUT
VREFC
NAME
Analogue Output /
Digital Input
Digital Input
Digital Input
Digital Input
Digital Input/Output
Digital Input
Supply
Analogue Output /
Supply
Supply
Analogue Output
Analogue Output /
Supply
Supply
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue I/O
Analogue Output /
Supply
Analogue Output
Analogue Output
Supply
Analogue Output
Analogue Output
Analogue Output
Supply
Analogue I/O
Analogue I/O
Supply
Analogue I/O
Analogue Output
Supply
Analogue Output
Analogue Input
Supply
Supply
Analogue Output /
Supply
Analogue I/O
TYPE
Right channel non-inverting analogue noise cancelling mic input
Status LED output / LED Digital microphone data pin 5
Digital control input (test functions) - normally tied to DGND
Digital control input (changes ANC filter characteristics, selects mute
or talk-through mode)
Control interface address select
Control interface data input / output
Control interface clock input
LDO1 supply input
LDO1 output / Digital core supply
MICBIAS supply input
Bias supply for external microphones
LDO3 output / Analogue supply
Analogue supplies ground
Left channel inverting analogue noise cancelling mic input
Left channel non-inverting analogue noise cancelling mic input
Right channel inverting analogue noise cancelling mic input
Left channel non-inverting differential line input (must be AC-coupled
for single-ended operation)
Left channel inverting differential line input (can be grounded for
single-ended operation)
Right channel inverting differential line input (can be grounded for
single-ended operation)
Right channel non-inverting differential line input (must be AC-
coupled for single-ended operation)
Midrail voltage capacitor connection point
LDO4 output / Headphone driver supply
Left headphone non-inverting output
Left headphone inverting output
Headphone driver ground
Right headphone inverting output
Right headphone non-inverting output
Charge pump output
DC1 boost converter supply input / Battery supply
Charge pump flyback capacitor connection
Charge pump flyback capacitor connection
Charge pump ground
DC1 boost converter inductor connection pin
DC1 boost converter output
System supply input
Crystal drive output
Crystal drive input or CMOS clock input
Digital supplies ground
OTP Memory programming supply - normally tied to DGND
LDO2 output / OTP memory supply
Voltage reference capacitor connection
DESCRIPTION
Product Brief, August 2010, Rev 1.1
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