NAU8812EVB Nuvoton Technology Corporation of America, NAU8812EVB Datasheet - Page 3

• Manufacturer Part Number: NAU8812EVB
• Description: BOARD EVAL FOR NAU8812
• Manufacturer: Nuvoton Technology Corporation of America
• Series: emPowerAudio™r

Specifications of NAU8812EVB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.
Notes
1.
2.
3.
4.
emPowerAudio
Datasheet Revision 2.0
VREF
MIC-
MIC+
MICBIAS
NC
VDDA
VSSA
VSSA
VDDL
VDDC
VDDB
VSSD
VSSD
ADCOUT
DACIN
FS
BCLK
MCLK
CSb/GPIO
SCLK
SDIO
SO
MODE
NC
MOUT
SPKOUT+
VSSSPK
VSSSPK
SPKOUT-
VDDSPK
VDDSPK
AUX
Pin Name
PIN DESCRIPTION
The 32-QFN package includes a bulk ground connection pad on the underside of the chip. This bulk ground
should be thermally tied to the PCB, and electrically tied to the analog ground.
Unused analog input pins should be left as no-connection.
Under all condition when digital pins are not used they should be tied to ground.
Pins designated as NC (Not Internally Connected) should be left as no-connection
™
28-Pin
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
-
-
-
-
32-Pin
Table 1: Pin Description for SSOP and QFN Packages
29
30
31
32
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
Decoupling internal analog mid supply reference
voltage
Microphone Negative Input
Microphone Positive Input
Microphone Bias
No Connect
Analog Supply
Analog Ground
Analog Ground
Logic supply voltage. This pin should not be
connected up to an external supply
Digital Supply Core
Digital Supply Buffer
Digital Ground
Digital Ground
Digital Audio Data Output
Digital Audio Data Input
Frame Sync
Bit Clock
Master Clock
SPI Chip Select or General Purposes 1 I/O
SPI or 2-Wire Serial Clock
SPI Data In or 2-Wire I/O
SPI Data Output
Interface Select (2-Wire or SPI)
No Connect
MONO Output
Speaker Positive Output
Speaker Ground
Speaker Ground
Speaker Negative Output
Speaker Supply
Speaker Supply
Auxiliary Input
Page 3 of 109
Functionality
NAU8812
January 2011
A/D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
Pin Type
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I