WAU8812YG Nuvoton Technology Corporation of America, WAU8812YG Datasheet - Page 8

• 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

VDDC = 1.8V, VDDA = VDDB = SPK3V = 3.3V, T
otherwise stated.
Speaker Output PGA
Programmable Gain
Programmable Gain Step
Size
BTL Speaker Output (SPKOUT+, SPKOUT- with 8Ω bridge tied load)
Full scale output
Output Power
Signal to Noise Ratio
Total Harmonic Distortion
(3-stage Output Amplifier)
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
emPowerAudio
Preliminary Datasheet Revision 0.85
PARAMETER
™
7
7
SYMBOL
V
I
PSRR
MICBIAS
SNR
THD
SNR
THD
MICBIAS
PO
V
N
Guaranteed monotonic
SPKBOOST = 0
SPKBOOST = 1
PO =180mW, RL = 8Ω,
SPK3V=3.3V
PO =400mW, RL = 8Ω,
SPK3V=3.3V
PO =360mW, RL = 8Ω,
SPK3V=5V
PO =800mW, RL = 8Ω,
SPK3V=5V
VDDSPK = 5V (non-
boost)
VDDSPK = 3V (boost)
A-weighted
Po=20mW, RL = 16Ω,
VDDSPK = 3.3V
Po=20mW, RL = 32Ω,
VDDSPK = 3.3V
(MBIASV = 0)
(MBIASV = 1)
MICBIASM = 0 (1kHz to
20kHz)
MICBIASM = 1 (1kHz to
20kHz)
SPK3V=3.3V, RL = 8Ω
SPK3V=5V, RL = 8Ω
TEST CONDITIONS
Output power is very closely correlated with THD; see
Page 8 of 15
A
= +25
o
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless
below
MIN
-57
(VCCSPK / 3.3) * 1.5
VCCSPK / 3.3
VDDA
VDDA
0.65*
V
TYP
0.9*
-85
-53
-85
-82
-84
-85
90
90
80
80
90
14
REF
1
3
4
MAX
October 2008
6
nV/√Hz
nV/√Hz
UNIT
V
V
mA
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
RMS
RMS
V
V