WM8985GEFL Wolfson Microelectronics, WM8985GEFL Datasheet - Page 6

• Manufacturer Part Number: WM8985GEFL
• Description: Audio CODECs Multimedia CODEC with Class D HP
• Manufacturer: Wolfson Microelectronics

Specifications of WM8985GEFL

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN DESCRIPTION
WM8985
Note:
It is recommended that the QFN ground paddle should be connected to analogue ground on the application PCB. Refer to
the application note WAN_0118 on “Guidelines on How to Use QFN Packages and Create Associated PCB Footprints”.
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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
1
2
3
6
7
8
9
4
5
CSB/GPIO1
R2/GPIO3
L2/GPIO2
MICBIAS
ADCDAT
DACDAT
DCVDD
DBVDD
AGND2
AGND1
ROUT2
AVDD2
ROUT1
AVDD1
LOUT2
LOUT1
DGND
MODE
MCLK
AUXR
NAME
BCLK
SCLK
OUT4
OUT3
AUXL
VMID
SDIN
LRC
RIP
RIN
LIN
LIP
Digital Input / Output
Digital Input / Output
Digital Input / Output
Digital Input / Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Digital Output
Digital Input
Digital Input
Digital Input
Digital Input
Reference
Supply
Supply
Supply
Supply
Supply
Supply
Supply
TYPE
Left MIC pre-amp positive input
Left MIC pre-amp negative input
Left channel line input/secondary mic pre-amp positive input/GPIO2 pin
Right MIC pre-amp positive input
Right MIC pre-amp negative input
Right channel line input/secondary mic pre-amp positive input/GPIO3 pin
DAC and ADC sample rate clock
Digital audio bit clock
ADC digital audio data output
DAC digital audio data input
Master clock input
Digital ground
Digital core logic supply
Digital buffer (I/O) supply
3-Wire control interface chip Select / GPIO1 pin
3-Wire control interface clock input / 2-wire control interface clock input
3-Wire control interface data input / 2-Wire control interface data input
Control interface selection
Left auxiliary input
Right auxiliary input
Right line output / mono mix output
Left line output
Class D or class AB headphone output right
Analogue ground (ground reference for ROUT2/LOUT2 and OUT3/OUT4)
Class D or class AB headphone output left
Analogue supply (feeds output amplifiers ROUT2/LOUT2 and OUT3/OUT4)
Decoupling for ADC and DAC reference voltage
Analogue ground (ground reference for all input amplifiers, PLL, ADC and
DAC, internal bias circuits, output amplifiers LOUT1, ROUT1)
Class AB headphone or line output right
Class AB headphone or line output left
Analogue supply (feeds all input amplifiers, PLL, ADC and DAC, internal
bias circuits, output amplifiers LOUT1, LOUT2))
Microphone bias
DESCRIPTION
PD, Rev 4.6, July 2009
Production Data
6