WM8758B Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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WM8758B Datasheet PDF : 90 Pages
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WM8758B
Production Data
Test Conditions
DCVDD=1.8V, AVDD1=AVDD2=3.0V, DBVDD=3.3V, TA = +25oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise
stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analogue to Digital Converter (ADC) - Input from LIN/P and RIN/P, PGA and boost gains=0dB
Signal to Noise Ratio (Note 5,6)
SNR
A-weighted
92.5
dB
AVDD1=AVDD2=3.0V
A-weighted
91.5
dB
AVDD1=AVDD2=2.5V
22Hz to 20kHz
90
dB
AVDD1=AVDD2=3.0V
22Hz to 20kHz
90
dB
AVDD1=AVDD2=2.5V
Total Harmonic Distortion
THD
-12dBFS Input
-75
dB
(Note 7)
AVDD1=AVDD2=3.0V
-12dBFS Input
-75
dB
AVDD1=AVDD2=2.5V
Total Harmonic Distortion + Noise THD+N
-12dBFS Input
-72
dB
(Note 7)
AVDD1=AVDD2=3.0V
-12dBFS Input
-72
dB
AVDD1=AVDD2=2.5V
Channel Separation (Note 8)
1kHz full scale input signal
100
dB
Analogue to Digital Converter (ADC) - Input from L2, R2
Signal to Noise Ratio (Note 5,6)
SNR
A-weighted
85
92.5
dB
AVDD1=AVDD2=3.0V
A-weighted
92.5
dB
AVDD1=AVDD2=2.5V
22Hz to 20kHz
90
dB
AVDD1=AVDD2=3.0V
22Hz to 20kHz
90
dB
AVDD1=AVDD2=2.5V
Total Harmonic Distortion
THD
-3dBFS Input
-83
-75
dB
(Note 7)
AVDD1=AVDD2=3.0V
-3dBFS Input
-66
dB
AVDD1=AVDD2=2.5V
Total Harmonic Distortion + Noise THD+N
-3dBFS Input
-81
-70
dB
(Note 7)
AVDD1=AVDD2=3.0V
-3dBFS Input
-65
dB
AVDD1=AVDD2=2.5V
Channel Separation (Note 8)
1kHz input signal
100
dB
w
PD, Rev 4.4, January 2012
8
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