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WM8758B Datasheet(PDF) 11 Page - Wolfson Microelectronics plc

Part # WM8758B
Description  Stereo CODEC with Headphone Driver and Line Out
PDF  90 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8758B Datasheet(HTML) 11 Page - Wolfson Microelectronics plc

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Production Data
WM8758B
w
PD, Rev 4.4, January 2012
11
Test Conditions
DCVDD=1.8V, AVDD1=AVDD2=3.0V, DBVDD=3.3V, TA = +25
oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise
stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
MIC PGA to Input Boost to OUT3/OUT4 outputs (with 10k
 / 50pF load)
Full-scale output voltage, 0dB
gain (Note 9)
AVDD2/3.3
Vrms
Signal to Noise Ratio (Note 5,6)
SNR
A-weighted
AVDD1=AVDD2=3.0V
90
98
dB
A-weighted
AVDD1=AVDD2=2.5V
96
dB
22Hz to 22kHz
AVDD1=AVDD2=3.0V
95.5
dB
22Hz to 22kHz
AVDD1=AVDD2=2.5V
93.5
dB
Total Harmonic Distortion
(Note 7)
THD
full-scale signal
AVDD1=AVDD2=3.0V
-84
dB
full-scale signal
AVDD1=AVDD2=2.5V
-82
dB
Total Harmonic Distortion + Noise
(Note 7)
THD+N
full-scale signal
AVDD1=AVDD2=3.0V
-82
dB
full-scale signal
AVDD1=AVDD2=2.5V
-80
dB
Channel Separation
100
dB
MIC PGA Bypass to LOUT1/ROUT1 (with 16
 load)
Full-scale output voltage, 0dB
gain (Note 9)
AVDD1/3.3
Vrms
Signal to Noise Ratio (Note 5,6)
SNR
A-weighted
AVDD1=AVDD2=3.0V
90
100
dB
A-weighted
AVDD1=AVDD2=2.5V
96
dB
22Hz to 22kHz
AVDD1=AVDD2=3.0V
95.5
dB
22Hz to 22kHz
AVDD1=AVDD2=2.5V
93.5
dB
Total Harmonic Distortion
(Note 7)
THD
-5dBFS signal
AVDD1=AVDD2=3.0V
-87
-75
dB
-5dBFS signal
AVDD1=AVDD2=2.5V
-69
dB
Total Harmonic Distortion + Noise
(Note 7)
THD+N
-5dBFS signal
AVDD1=AVDD2=3.0V
-85
-73
dB
-5dBFS signal
AVDD1=AVDD2=2.5V
-68
dB
Channel separation
1kHz full scale signal
100
dB



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