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| WM8994 Datasheet, PDF (24/359 Pages) Wolfson Microelectronics plc – Multi-Channel Audio Hub CODEC for Smartphones | |||
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WM8994
Production Data
Test Conditions
AVDD1=3.0V (powered from LDO1), DCVDD=1.0V (powered from LDO2), AVDD2=DBVDD=LDO2VDD=CPVDD=1.8V,
LDO1VDD=SPKVDD1=SPKVDD2=5V, DGND=AGND=CPGND=SPKGND1=SPKGND2=HP2GND=0V,
TA = +25oC, 1kHz sinusoidal signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
TEST CONDITIONS
F5 Direct Voice Path to Earpiece Driver (Load = 16ï BTL)
SNR
A-weighted
THD
PO=50mW
THD+N
PSRR (all supplies)
PO=50mW
100mV (pk-pk)
217Hz
MIN TYP MAX UNIT
90 104
dB
-70
dB
-68 -60 dB
91
dB
F6 Direct Voice Path to Speaker Outputs (Load = 8ï + 22ïH BTL, Stereo Mode)
Class D Mode, +12dB boost (SPKOUTx_BOOST = 111)
SNR
A-weighted
97
dB
THD
PO=0.5W
-62
dB
THD+N
PO=0.5W
-60
dB
THD
THD+N
PO=1.0W
PO=1.0W
-67
dB
-65
dB
PSRR (all supplies)
100mV (pk-pk)
217Hz
63
dB
Direct Voice Path to Speaker Outputs (Load = 8ï + 22ïH BTL, Stereo Mode)
Class AB Mode, +12dB boost (SPKOUTx_BOOST = 111)
SNR
A-weighted
103
dB
THD
THD+N
PO=0.5W
PO=0.5W
-62
dB
-60
dB
THD
PO=1.0W
-64
dB
THD+N
PO=1.0W
-62
dB
PSRR (all supplies)
100mV (pk-pk)
217Hz
67
dB
F7 Line Input to Speaker Outputs via SPKMIXL or SPKMIXR (Load = 8ï + 22ïH BTL, Stereo Mode)
Class D Mode, +12dB boost (SPKOUTx_BOOST = 111)
SNR
A-weighted
93
dB
THD
PO=0.5W
-62
dB
THD+N
PO=0.5W
-60
dB
THD
PO=1.0W
-67
dB
THD+N
PSRR (all supplies)
PO=1.0W
100mV (pk-pk)
217Hz
-65
dB
47
dB
Line Input to Speaker Outputs via SPKMIXL or SPKMIXR (Load = 8ï + 22ïH BTL, Stereo Mode)
Class AB Mode, +12dB boost (SPKOUTx_BOOST = 111)
SNR
A-weighted
96
dB
THD
PO=0.5W
-72
dB
THD+N
PO=0.5W
-68
dB
THD
PO=1.0W
-64
dB
THD+N
PO=1.0W
-62
dB
PSRR (all supplies)
100mV (pk-pk)
217Hz
47
dB
w
PD, April 2012, Rev 4.4
24
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