NAU8812EVB Nuvoton Technology Corporation of America, NAU8812EVB Datasheet - Page 14

• 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

BTL Speaker Output (SPKOUT+, SPKOUT- with 8Ω bridge tied load)
Full scale output
Output Power
Signal to Noise Ratio
Total Harmonic Distortion
Power Supply Rejection Ratio
(50Hz - 22kHz)
Headphone’ output (SPKOUTP, SPKOUTN with resistive load to ground)
Full scale output
Signal to Noise Ratio
Total Harmonic Distortion
Microphone Bias
Bias Voltage
Bias Current Source
Output Noise Voltage
Automatic Level Control (ALC)/Limiter – ADC only
Target Record Level
Programmable Gain
Programmable Gain Step Size
Gain Hold Time
VDDC = 1.8V, VDDA = VDDB = SPKBST = 3.3V, T
otherwise stated.
emPowerAudio
Datasheet Revision 2.0
PARAMETER
4, 6
7
7
™
SYMBOL
V
I
PSRR
MICBIAS
SNR
SNR
t
THD
THD
MICBIAS
HOLD
PO
V
N
SPKBST = 0
SPKBST = 1
Output power is very closely correlated with THD;
see below
VDDSPK = 3.3V
RL = 8Ω
VDDSPK = 5V
RL = 8Ω
PO =180mW
PO =400mW
PO =360mW
PO =800mW
PO =1W
VDDSPK = 3V, SPKBST = 0
VDDSPK = 5V, SPKBST = 1
A-weighted
Po = 20mW
Po = 20mW
(MICBIASV = 0)
(MICBIASV = 1)
MICBIASM = 0
(1kHz to 20kHz)
MICBIASM = 1
(1kHz to 20kHz)
Guaranteed Monotonic
MCLK=12.288MHz
Page 14 of 109
A
= +25
TEST CONDITIONS
RL = 8Ω
RL=16Ω
RL=32Ω
o
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless
VDDSPK=3.3V
VDDSPK=5V
VDDSPK=3.3V
(time doubles with each
-28.5
MIN
-12
(VDDSPK / 3.3) * 1.5
0 / 2.67 / …/ 43691
VDDSPK / 3.3
NAU8812
January 2011
VDDA
VDDA
0.65*
step)
V
TYP
0.75
0.9*
-63
-56
-60
-61
-34
-84
-85
90
90
50
50
90
14
REF
3
4
35.25
MAX
-6
nV/√Hz
nV/√Hz
UNIT
V
V
mA
ms
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
RMS
RMS
V
V