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WM8973CLGEFL/V Datasheet(PDF) 8 Page - Wolfson Microelectronics plc

Part # WM8973CLGEFL/V
Description  Stereo CODEC for Portable Audio Applications
PDF  63 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8973CLGEFL/V Datasheet(HTML) 8 Page - Wolfson Microelectronics plc

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WM8973L
Production Data
w
PD, Rev 4.5, December 2011
8
ELECTRICAL CHARACTERISTICS
Test Conditions
DCVDD = 1.5V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, TA = +25
oC, 1kHz signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio
data unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analogue Inputs (LINPUT1, RINPUT1, LINPUT2, RINPUT2, LINPUT3, RINPUT3) to ADC out
Full Scale Input Signal Level
(for ADC 0dB Input at 0dB Gain)
VINFS
AVDD = 3.3V
1.0
V rms
AVDD = 1.8V
0.545
Input Resistance
L/RINPUT1 to ADC,
PGA gain = 0dB
22
k
L/RINPUT1 to ADC,
PGA gain = +30dB
1.5
L/RINPUT1 unused
DC Measurement
16
L/RINPUT1 unused
17
Input Capacitance
10
pF
Signal to Noise Ratio
(A-weighted)
SNR
AVDD = 3.3V
80
95
dB
AVDD = 1.8V
90
Dynamic Range
-60dBFs
90
95
dB
Total Harmonic Distortion
THD
-1dBFs input,
AVDD = 3.3V
-82
0.008
dB
%
-1dBFs input,
AVDD = 1.8V
-74
0.02
ADC Channel Separation
1kHz signal
85
dB
Channel Matching
1kHz signal
0.2
dB
Analogue Outputs (LOUT1/2, ROUT1/2, MONOOUT)
0dB Full scale output voltage
AVDD/3.3
Vrms
Mute attenuation
1kHz, full scale signal
90
dB
MONOOUT pin
81
Channel Separation
analogue in
to analogue out
85
dB
DAC to Line-Out (L/ROUT2 with 10k
 / 50pF load)
Signal to Noise Ratio
(A-weighted)
SNR
AVDD=3.3V
90
98
dB
AVDD=1.8V
93
Total Harmonic Distortion
THD
AVDD=3.3V
-84
dB
AVDD=1.8V
-80
Channel Separation
1kHz signal
100
dB
Headphone Output (LOUT1/ROUT1, using capacitors)
Output Power per channel
PO
Output power is very closely correlated with THD; see below.
Total Harmonic Distortion
THD
HPVDD=1.8V, RL=32
PO=5mW
0.016
-76
%
dB
HPVDD=1.8V, RL=16
PO=5mW
0.022
-73
HPVDD=3.3V, RL=32,
PO=20mW
0.013
-78
HPVDD=3.3V, RL=16,
PO=20mW
0.018
-75
Signal to Noise Ratio
(A-weighted)
SNR
HPVDD = 3.3V
92
96
dB
HPVDD = 1.8V
96



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