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
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
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
AVDD1=AVDD2=3.0V
A-weighted
92.5
91.5
90
AVDD1=AVDD2=2.5V
22Hz to 20kHz
AVDD1=AVDD2=3.0V
22Hz to 20kHz
90
AVDD1=AVDD2=2.5V
-12dBFS Input
Total Harmonic Distortion
(Note 7)
THD
-75
-75
-72
-72
100
92.5
92.5
90
AVDD1=AVDD2=3.0V
-12dBFS Input
AVDD1=AVDD2=2.5V
-12dBFS Input
Total Harmonic Distortion + Noise
(Note 7)
THD+N
AVDD1=AVDD2=3.0V
-12dBFS Input
AVDD1=AVDD2=2.5V
1kHz full scale input signal
Channel Separation (Note 8)
Analogue to Digital Converter (ADC) - Input from L2, R2
Signal to Noise Ratio (Note 5,6)
SNR
A-weighted
AVDD1=AVDD2=3.0V
A-weighted
85
AVDD1=AVDD2=2.5V
22Hz to 20kHz
AVDD1=AVDD2=3.0V
22Hz to 20kHz
90
AVDD1=AVDD2=2.5V
-3dBFS Input
Total Harmonic Distortion
(Note 7)
THD
-83
-66
-81
-65
100
-75
-70
AVDD1=AVDD2=3.0V
-3dBFS Input
AVDD1=AVDD2=2.5V
-3dBFS Input
Total Harmonic Distortion + Noise
(Note 7)
THD+N
AVDD1=AVDD2=3.0V
-3dBFS Input
AVDD1=AVDD2=2.5V
1kHz input signal
Channel Separation (Note 8)
PD, Rev 4.4, January 2012
8
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
