WM9711(2006) Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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WM9711 Datasheet PDF : 65 Pages
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Production Data
WM9711L
PIN DESCRIPTION
PIN
NAME
TYPE
DESCRIPTION
1
DBVDD
Supply
Digital I/O Buffer Supply
2
XTLIN
Digital Input
Clock Crystal Connection 1 / External Clock Input
3
XTLOUT
Digital Output
Clock Crystal Connection 2
4
DGND1
Supply
Digital Ground (return path for both DCVDD and DBVDD)
5
SDATAOUT
Digital Input
Serial Data Output from Controller / Input to WM9711L
6
BITCLK
Digital Output
Serial Interface Clock Output to Controller
7
DGND2
Supply
Digital Ground (return path for both DCVDD and DBVDD)
8
SDATAIN
Digital Output
Serial Data Input to Controller / Output from WM9711L
9
DCVDD
Supply
Digital Core Supply
10
SYNC
Digital Input
Serial Interface Synchronisation Pulse from Controller
11
RESETB
Digital Input
Reset (Active Low, resets all registers to their default)
12
CREF
Analogue Input Reference for analogue comparators (COMP1,2,3)
13
AVDD2
Supply
Connect to AVDD
14
DNC
Do not connect Leave this pin floating
15
DNC
Do not connect Leave this pin floating
16
DNC
Do not connect Leave this pin floating
17
DNC
Do not connect Leave this pin floating
18
AGND1
Supply
Connect to AGND
19
PCBEEP
Analogue Input Line Input to analogue audio mixers, typically used for beeps
20
PHONE
Analogue Input Phone Input (RX)
21
MIC1
Analogue Input Left Microphone Input
22
MIC2
Analogue Input Right Microphone Input
23
LINEINL
Analogue Input Left Line Input
24
LINEINR
Analogue Input Right Line Input
25
AVDD
Supply
Analogue Supply (feeds audio DACs, ADCs, PGAs, mic boost,
mixers)
26
AGND
Supply
Analogue Ground
27
VREF
Analogue Output Internal Reference Voltage (buffered CAP2)
28
MICBIAS
Analogue Output Bias Voltage for Microphones (buffered CAP2 × 1.8)
29
COMP1
Analogue Input Comparator Input 1
30
COMP2
Analogue Input Comparator Input 2
31
COMP3
Analogue Input Comparator Input 3
32
CAP2
Analogue In / Out Internal Reference Voltage (normally AVDD/2, if not overdriven)
33
MONOOUT
Analogue Output Mono Output, intended for Phone TX signal
34
SPKGND
Supply
Speaker Ground (feeds output buffers on pins 35 and 36)
35
LOUT2
Analogue Output Left Output 2 (Speaker, Line or Headphone)
36
ROUT2
Analogue Output Right Output 2 (Speaker, Line or Headphone)
37
OUT3
Analogue Output Analogue Output 3 (from AUXDAC or headphone pseudo-ground)
38
SPKVDD
Supply
Speaker Supply (feeds output buffers on pins 35 and 36)
39
HPOUTL
Analogue Output Headphone Left Output
40
HPGND
Supply
Headphone Ground (feeds output buffers on pins 37, 39, 41)
41
HPOUTR
Analogue Output Headphone Left Output
42
AGND2
Supply
Chip Substrate, connect to AGND
43
HPVDD
Digital In / Out
Headphone Supply (feeds output buffers on pins 37, 39, 41)
44
GPIO1
Digital In / Out GPIO Pin 1
45
GPIO2 / IRQ
Digital In / Out GPIO Pin 2 or IRQ (Interrupt Request) Output
46
GPIO3
Digital In / Out GPIO Pin 3
47
GPIO4
Digital In / Out GPIO Pin 4 (On reset, pin level configures device power up status.
See Applications section for external components configuration)
48
GPIO5 / SPDIF_OUT Digital In / Out
GPIO Pin 5 or SPDIF Digital Audio Output
Note: It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB.
w
PD Rev 4.3 August 2006
5
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