WAU8812YG Nuvoton Technology Corporation of America, WAU8812YG Datasheet - Page 7

• Manufacturer Part Number: WAU8812YG
• Description: IC MON AUD CODEC SPKR DVR 32-QFN
• Manufacturer: Nuvoton Technology Corporation of America
• Series: emPowerAudio™r
• Type: Audio Codecr

Specifications of WAU8812YG

• Data Interface: Serial
• Number Of Adcs / Dacs: 1 / 1
• Sigma Delta: No
• S/n Ratio, Adcs / Dacs (db) Typ: 91 / 93
• Voltage - Supply, Analog: 2.5 V ~ 3.6 V
• Voltage - Supply, Digital: 1.71 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• For Use With: WAU8812EVB - BOARD EVALUATION FOR WAU8812
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.
VDDC = 1.8V, VDDA = VDDB = SPK3V = 3.3V, T
otherwise stated.
Analogue to Digital Converter (ADC)
Full scale input signal
Signal to Noise Ratio
Total Harmonic Distortion
Digital to Analogue Converter (DAC) to MONO output (all data measured with 10kΩ / 50pF load)
Full Scale output signal
Signal to Noise Ratio
Total Harmonic Distortion
Auxiliary Analogue Input (AUX)
Full-scale Input Signal Level
Input Resistance
Input Capacitance
Microphone Inputs (MICN & MICP) and MIC Input Programmable Gain Amplifier
(PGA)
Full-scale Input Signal Level
Programmable input PGA gain
Programmable Gain Step Size
Programmable Boost PGA gain
Mute Attenuation
PGA equivalent output noise
Auxiliary Input resistance
Positive Microphone Input
resistance
Input Capacitance
emPowerAudio
Preliminary Datasheet Revision 0.85
ELECTRICAL CHARACTERISTICS
PARAMETER
™
2
2
1
1
3
3
1
1
SYMBOL
R
V
V
V
SNR
THD
SNR
THD
R
C
R
C
MIC+
INFS
INFS
INFS
AUX
AUX
AUX
MIC
Page 7 of 15
A
PGABST = 0dB
PGAGAIN = 0dB
Gain = 0dB, A-weighted
Input = -1dBFS, Gain = 0dB
MOUT3V=0
MOUT3V=1
A-weighted (ADC/DAC
oversampling rate of 128)
R
Gain = 0dB
AUXM=0
PGABST = 0dB
PGAGAIN = 0dB
Guaranteed monotonic
Boost disabled = 0
Boost enabled = 1
0 to 20kHz,
Gain set to 35.25dB
PGA Gain = 35.25dB
PGA Gain = 0dB
PGA Gain = -12dB
PMICPGA = 1
= +25
L
= 10 kΩ; -1.5dBfs
TEST CONDITIONS
o
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless
MIN
-12
87
90
(V
TYP
1.5x
V
0.75
100
110
1.0
-79
-84
1.6
91
93
20
10
20
47
75
94
10
REF
0
1
0
1
0
0
REF
)
October 2008
MAX
35.2
-65
-70
5
UNIT
V
V
V
V
dBV
dBV
dBV
dB
dB
dB
dB
kΩ
dB
dB
dB
dB
µV
kΩ
kΩ
kΩ
kΩ
pF
pF
RMS
RMS
RMS
RMS