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WM8281ECS/R Scheda tecnica(PDF) 20 Page - Cirrus Logic

Il numero della parte WM8281ECS/R
Spiegazioni elettronici  Low Power Audio System with Ambient Noise Cancellation and Echo Cancellation
PDF  392 Pages
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Produttore elettronici  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8281ECS/R Scheda tecnica(HTML) 20 Page - Cirrus Logic

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WM8281
20
Rev 4.0
Test Conditions
DBVDD1 = DBVDD2 = DBVDD3 = CPVDD = AVDD = 1.8V,
DCVDD = 1.2V (powered from LDO1), MICVDD = 2.5V (powered from LDO2), SPKVDDL = SPKVDDR = 4.2V,
TA = +25ºC, 1kHz sinusoid signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DAC to Earpiece Output
(HPOUTnL, HPOUTnR, Mono Mode, RL = 32 BTL, Short Circuit Protection disabled)
Maximum output power
PO
0.1% THD+N
106
mW
Signal to Noise Ratio (A-weighted)
SNR
Output signal = 1.41Vrms
117
dB
Output signal = 1.41Vrms,
eDRE software enabled
126
Total Harmonic Distortion
THD
PO = 75mW
-88
dB
Total Harmonic Distortion + Noise
THD+N
PO = 75mW
-86
dB
Total Harmonic Distortion
THD
PO = 5mW
-89
dB
Total Harmonic Distortion + Noise
THD+N
PO = 5mW
-88
dB
Output noise floor
A-weighted
2.25
µVRMS
PSRR (DBVDDn, LDOVDD,
CPVDD, AVDD)
PSRR
100mV (peak-peak) 217Hz
105
dB
100mV (peak-peak) 10kHz
107
PSRR (SPKVDDL, SPKVDDR)
PSRR
100mV (peak-peak) 217Hz
>120
dB
100mV (peak-peak) 10kHz
>120
DAC to Earpiece Output
(HPOUTnL, HPOUTnR, Mono Mode, RL = 16 BTL, Short Circuit Protection disabled)
Maximum output power
PO
0.1% THD+N
105
mW
Signal to Noise Ratio (A-weighted)
SNR
Output signal = 1.41Vrms
117
dB
Output signal = 1.41Vrms,
eDRE software enabled
126
Total Harmonic Distortion
THD
PO = 75mW
-86
dB
Total Harmonic Distortion + Noise
THD+N
PO = 75mW
-85
dB
Total Harmonic Distortion
THD
PO = 5mW
-86
dB
Total Harmonic Distortion + Noise
THD+N
PO = 5mW
-85
dB
Output noise floor
A-weighted
2.25
µVRMS
PSRR (DBVDDn, LDOVDD,
CPVDD, AVDD)
PSRR
100mV (peak-peak) 217Hz
105
dB
100mV (peak-peak) 10kHz
112
PSRR (SPKVDDL, SPKVDDR)
PSRR
100mV (peak-peak) 217Hz
>120
dB
100mV (peak-peak) 10kHz
>120



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