WM8961
Pre-Production
Test Conditions
MICVDD = 2.5V, DVDD = 1.8V, CPVDD=1.8V, AVDD = 1.8V SPKVDD1 = SPKVDD2 = 5V, TA = +25oC, 1kHz signal, fs = 48kHz,
PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DAC to HP_L, HP_R (used as Line output) with 10kΩ / 50pF load: SNR optimised headphone playback mode (see note 1)
Signal to Noise Ratio
(A-weighted)
SNR
88
98
-78
-79
dB
dB
dB
Total Harmonic Distortion Plus
Noise
THD+N
THD
10kΩ load
10kΩ load
Total Harmonic Distortion
DAC to Headphone Output (HP_L, HP_R) with headphone load: standard headphone playback mode
Output Power at 1% THD+N
PO
RL=32Ω
RL=16Ω
26
30
mW
Total Harmonic Distortion Plus
Noise
THD+N
RL=32Ω, PO=2mW
-79
0.011
dB
%
RL=32Ω, PO=3.5mW
RL=32Ω, PO=12mW
RL=16Ω, PO=2mW
RL=16Ω, PO=22mW
RL=32Ω, PO=12mW
RL=16Ω, PO=22mW
-79
0.011
-78
0.012
-70
0.032
-81
0.0089
-80
0.01
Total Harmonic Distortion
THD
-82
0.0079
dB
%
-84
0.0063
dB
%
Noise Level
-87
-97
dBV
mV
dB
DC offset
DC servo is enabled
1kHz full scale signal
10kHz full scale signal
-1.5
+1.5
Channel Separation
90
75
DAC to Headphone Output (HP_L, HP_R) with headphone load: low power headphone playback mode
Total Harmonic Distortion Plus
Noise
THD+N
RL=32Ω, PO=12mW
-77
0.014
dB
%
RL=16Ω, PO=22mW
-79
0.011
Noise Level
-97
dBV
DAC to Headphone Output (HP_L, HP_R) with headphone load: SNR optimised playback mode (see note 1)
Total Harmonic Distortion Plus
Noise
THD+N
RL=32Ω, PO=12mW
-81
0.0089
-70
0.032
dB
%
RL=16Ω, PO=22mW
-82
0.0079
Noise Level
-88
-98
dBV
W
DAC to Speaker Outputs (DAC to SPK_LP, SPK_LN, SPK_RP, SPK_RN with stereo 8Ω bridge tied load)
Output Power at 1% THD+N
PO
RL=8Ω, SPKVDD=5v5
1.26
Total Harmonic Distortion Plus
Noise
THD+N
PO =200mW, RL = 8Ω,
SPKVDD1=SPKVDD2
=3.3V; AVDD=1.8V
-64
0.063
dB
%
PO =320mW, RL = 8Ω,
SPKVDD1=SPKVDD2
=3.3V; AVDD=1.8V
-72
0.025
dB
%
PP, August 2009, Rev 3.1
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
