WM9704M Datasheet, PDF (6/37 Pages) Wolfson Microelectronics plc – AMC97 Audio and Modem Codec

WM9704M
Production Data
PIN DESCRIPTION
PIN
NAME
TYPE
1
DVDD1
Supply
2
XTLIN
Digital input
3
XTLOUT
Digital output
4
DVSS1
Supply
5
SDATAOUT
Digital input
6
BITCLK
Digital output (master)
Digital input (slave)
7
DVSS2
Supply
8
SDATAIN
Digital output
9
DVDD2
Supply
10
SYNC
Digital input
11
RESETB
Digital input
12
PCBEEP
Analogue input
13
PHONE
Analogue input
14
AUXL
Analogue input
15
AUXR
Analogue input
16
VIDEOL
Analogue input
17
VIDEOR
Analogue input
18
CDL
Analogue input
19
CDGND
Analogue input
20
CDR
Analogue input
21
MIC1
Analogue input
22
MIC2
Analogue input
23
LINEINL
Analogue input
24
LINEINR
Analogue input
25
AVDD1
Supply
26
AVSS1
Supply
27
VREF(1)
Analogue output
28
VREFOUT
Analogue output
29
AFILT1(1)
Analogue output
30
MODE0
Digital input
31
CAP1(1)
Analogue output
32
CAP2
Analogue input
33
CX3D1
Analogue output
34
CX3D2
Analogue input
35
LINEOUTL
Analogue output
36
LINEOUTR
Analogue output
37
MONOOUT
Analogue output
38
AVDD2
Supply
39
LNLVLOUTL
Analogue output
40
MODE1
Digital input
41
LNLVLOUTR
Analogue output
42
AVSS2
Supply
43
GPIO1
Programmable I/O
44
GPIO2
Programmable I/O
45
CID0
Digital input
46
CID1
Digital input
47
EAPD
Digital output
48
GPIO3
Programmable I/O
Note:
1. Pins 27, 29 and 31 have an internal connection.
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 master 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
Mixer input, typically for PHONE signal
Mixer input, typically for AUX signal
Mixer input, typically for AUX signal
Mixer input, typically for VIDEO signal
Mixer input, typically for VIDEO signal
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
Mixer input with extra gain if required
Mixer input, typically for LINE signal
Mixer input, typically for LINE signal
Analogue positive supply
Analogue ground supply, chip substrate
Buffered CAP2
Reference for microphones; buffered CAP2
Buffered CAP2
6 channel support I²S enable
Buffered CAP2
Reference input/output; pulls to midrail if not driven
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
Mode select pin, internal pull down
Right channel line level output
Analogue ground supply, chip substrate
GPIO or I²S
GPIO or I²S
Master/slave ID select (internal pull-up)
Master/slave ID select (internal pull-up)
External amplifier power down/GPO
GPIO
WOLFSON MICROELECTRONICS LTD
PD Rev 3.2 January 2001
6