WM9705 データシートの表示（PDF） - Wolfson Microelectronics plc
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WM9705 Datasheet PDF : 55 Pages
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WM9705
Production Data
PIN DESCRIPTION
PIN 48 PIN QFN 48 PIN TQFP
TYPE
1
DVDD1
DVDD1
Supply
2
XTLIN
XTLIN
Digital input
3
XTLOUT
XTLOUT
Digital output
4
DGND1
DGND1
Supply
5
SDATAOUT SDATAOUT Digital input
6
BITCLK
BITCLK
Digital output
Digital input
7
DGND2
DGND2
Supply
8
SDATAIN
SDATAIN Digital output
9
DVDD2
DVDD2
Supply
10
SYNC
SYNC
Digital input
11
RESETB
RESETB
Digital input
12
PCBEEP
PCBEEP Analogue input
13
PHONE
PHONE
Analogue input
14
X+/AUXL
X+/AUXL Analogue I/O
15
X-/AUXR
X-/AUXR
Analogue I/O
16
Y+/VIDL
Y+/VIDL
Analogue I/O
17
Y-/VIDR
Y-/VIDR
Analogue I/O
18
CDL
CDL
Analogue input
19
CDGND
CDGND
Analogue input
20
CDR
CDR
Analogue input
21
MIC1
MIC1
Analogue input
22
MIC2
MIC2
Analogue input
23
LINEINL
LINEINL
Analogue input
24
LINEINR
LINEINR
Analogue input
25
AVDD1
AVDD1
Supply
26
AGND1
AGND1
Supply
27
VREF
VREF
Analogue output
28
VREFOUT
VREFOUT Analogue output
29
PDRES
PDRES
Analogue input
30
AUXADC
AUXADC Analogue input
31
BMON
BMON
Analogue input
32
CAP2
CAP2
Analogue I/O
33
CX3D1
CX3D1
Analogue output
34
CX3D2
CX3D2
Analogue input
35
LINEOUTL
LINEOUTL Analogue output
36
LINEOUTR LINEOUTR Analogue output
37
MONOOUT MONOOUT Analogue output
38
AVDD2
AVDD2
Supply
39
HPOUTL
HPOUTL Analogue output
40
HPGND
HPGND
Supply
41
HPOUTR
HPOUTR Analogue output
42
AGND2
AGND2
Supply
43
MASK/LRC MASK/LRC Digital bidir
44
SPEN/I2S
SPEN/I2S
Digital bidir
45
CID0
CID0
Digital input
46
PENDET
PENDET
Digital output
47
EAPD/BUSY EAPD/BUSY Digital output
48
SPDIF
SPDIF
Digital output
DESCRIPTION
Digital positive supply
Clock crystal connection or clock input (XTAL not used)
Clock crystal connection
Digital ground supply
Serial data input
Serial interface clock output to AC’97 controller
or input from AC'97 primary codec
Digital ground supply
Serial data output to AC’97 controller
Digital positive supply
Serial interface sync pulse from AC’97 controller
NOT reset input (active low, resets registers)
Mixer input, typically for PCBEEP signal (also input to AUX ADC)
PHONE input (also input to AUX ADC)
Pen X+ channel screen driver/input. (or AUXL mixer input)
Pen X- channel screen driver/input (or AUXR mixer input)
Pen Y+ channel screen driver/input (or VIDL mixer input)
Pen Y- channel screen driver/input (or VIDR mixer input)
Mixer input, typically for CD signal
CD input common mode reference (ground)
Mixer input, typically for CD signal
Mixer input with extra gain if required – also HSET detect input
Mixer input with extra gain if required
Mixer input, typically for LINE signal
Mixer input, typically for LINE signal
Analogue positive supply for screen drivers
Analogue ground supply for screen drivers
Internal reference (buffered CAP2)
Reference for microphones (buffered CAP2)
Pen Down Detect Pull-up external resistor connection
AUX signal input to digitiser ADC
Battery input to ADC
Reference input/output; pulls to midrail if not overdriven
Output pin for 3D difference signal
Input pin for 3D difference signal
Main analogue output for left channel
Main analogue output for right channel
Main mono output
Analogue positive supply
Left channel line level output (or headphone, or headset mic input)
Headphone ground supply
Right channel line level output (or headphone)
Analogue ground supply
MASK input signal to delay PEN conversions (or LRCLK output)
SPDIF hardware enable pin and I2S data output
Primary/Secondary ID select (internal pull-up) Hi = Primary
Pen Down Detection flag OR Headset detect output
External amplifier powerdown or BUSY output flag from Pen ADC
S/PDIF output
Note: It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.
w
PD Rev 4.4 August 2006
7
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