WAU8822YG Nuvoton Technology Corporation of America, WAU8822YG Datasheet - Page 6

• Manufacturer Part Number: WAU8822YG
• Description: IC STER AUDIO CODEC 24BIT 32-QFN
• Manufacturer: Nuvoton Technology Corporation of America
• Series: emPowerAudio™r
• Type: Stereo Audior

Specifications of WAU8822YG

• Data Interface: I²C, Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 90 / 94
• Voltage - Supply, Analog: 2.5 V ~ 3.6 V
• Voltage - Supply, Digital: 1.65 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• For Use With: WAU8822EVB - BOARD EVALUATION FOR WAU8822
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Characteristics, cont’d.
Conditions: VDDC = 1.8V, VDDA = VDDB = VCCSPK = 3.3V, MCLK = 12.288MHz,
T
Parameter
Headphone Output (RHP / LHP with 32Ω load)
0dB full scale output voltage
Signal-to-noise ratio
Total harmonic distortion
AUXOUT1 / AUXOUT2 with 10kΩ / 50pF load
Full scale output
Signal-to-noise ratio
Total harmonic distortion
Channel separation
Power supply rejection ratio
(50Hz - 22kHz)
Microphone Inputs (LMICP, LMICN, RMICP, RMICN, LLIN, RLIN) and Programmable Gain Amplifier (PGA)
Full scale input signal
Programmable gain
Programmable gain step size
Mute Attenuation
Input resistance
Input capacitance
PGA equivalent input noise
Input Boost Mixer
Gain boost
Gain range LLIN / RLIN or
LAUXIN / RAUXIN to boost/mixer
Gain step size to boost/mixer
Auxiliary Analog Inputs (LAUXIN, RAUXIN)
Full scale input signal
Input resistance
Input capacitance
WAU8822 Data Sheet Rev 0.86
emPowerAudio
A
= +25°C, 1kHz signal, fs = 48kHz, 24-bit audio data, unless otherwise stated.
™
1
1
2
2
Symbol
THD+N
THD+N
PSRR
SNR
SNR
Comments/Conditions
A-weighted
R
VDDA = 3.3V
R
VDDA = 3.3V
AUX1BST = 0
AUX2BST = 0
AUX1BST = 1
AUX2BST = 1
1kHz signal
VDDSPK = 5V (boost)
PGABST = 0dB
PGAGAIN = 0dB
Guaranteed Monotonic
Inverting Input
Non-inverting Input
0 to 20kHz, Gain set to
35.25dB
Boost disabled
Boost enabled
Gain = 0dB
Aux direct-to-out path, only
Page 6 of 21
L
L
Input gain = +6.0dB
Input gain = 0.0dB
Input gain = -12dB
PGA Gain = 35.25dB
PGA Gain = 0dB
PGA Gain = -12dB
= 16Ω, P
= 32Ω, P
o
o
= 20mW,
= 20mW,
Min
-12
-12
(VDDSPK / 3.3) * 1.5
VDDSPK / 3.3
AVDD / 3.3
Typ
0.75
120
120
159
-83
1.0
1.6
1.0
92
80
85
87
99
53
56
47
75
94
10
20
20
40
10
0
0
3
0
September 4, 2008
Max
35.25
6
Units
Vrms
Vrms
dBV
dBV
V
V
V
kΩ
kΩ
kΩ
kΩ
µV
kΩ
kΩ
kΩ
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF
dB
dB
dB
dB
pF
rms
rms
rms