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WM8782SEDS/R Datasheet(PDF) 6 Page - Wolfson Microelectronics plc

No. de pieza WM8782SEDS/R
Descripción Electrónicos  24-Bit, 192kHz Stereo ADC
PDF  21 Pages
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Fabricante Electrónico  WOLFSON [Wolfson Microelectronics plc]
Página de inicio  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8782SEDS/R Datasheet(HTML) 6 Page - Wolfson Microelectronics plc

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WM8782
Production Data
w
PD, August 2006, Rev 4.2
6
ELECTRICAL CHARACTERISTICS
Test Conditions
DVDD = 3.3V, AVDD = 5.0V, TA = +25
oC, 1kHz signal, A-weighted, fs = 48kHz, MCLK = 256fs, 24-bit audio data, Slave Mode
unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ADC Performance
Full Scale Input Signal Level
(for ADC 0dB Input)
1.0
Vrms
Input resistance, using
recommended external resistor
network on p17.
10
kΩ
Input capacitance
20
pF
A-weighted,
@ fs = 48kHz
93
102
dB
Unweighted,
@ fs = 48kHz
100
dB
Signal to Noise Ratio
(see Terminology note 1,2,4)
SNR
A-weighted,
@ fs = 48kHz, AVDD =
3.3V
100
dB
A-weighted,
@ fs = 96kHz
93
99
dB
Unweighted,
@ fs = 96kHz
99
dB
Signal to Noise Ratio
(see Terminology note 1,2,4)
SNR
A-weighted,
@ fs = 96kHz, AVDD =
3.3V
99
dB
1kHz, -1dB Full Scale
@ fs = 48kHz
-91
dB
1kHz, -1dB Full Scale
@ fs = 96kHz
-91
dB
Total Harmonic Distortion
THD
1kHz, -1dB Full Scale
@ fs = 192kHz
-90
dB
Dynamic Range
DNR
-60dBFS
93
102
dB
Channel Separation
(see Terminology note 4)
1kHz Input
90
dB
Channel Level Matching
1kHz signal
0.1
dB
Channel Phase Deviation
1kHz signal
0.0001
Degree
Power Supply Rejection Ratio
PSRR
1kHz 100mVpp, applied
to AVDD, DVDD
50
dB
Digital Logic Levels (TTL Levels)
Input LOW level
VIL
0.8
V
Input HIGH level
VIH
2.0
V
Input leakage current – digital pad
-1
±0.2
+1
µA
Input leakage current – digital
tristate input (Note 3)
85
µA
Input capacitance
5
pF
Output LOW
VOL
IOL=1mA
0.1 x DVDD
V
Output HIGH
VOH
IOH= -1mA
0.9 x DVDD
V
Analogue Reference Levels
Midrail Reference Voltage
VMID
AVDD to VMID and
VMID to VREFN
–4%
AVDD/2
+4%
V
Potential Divider Resistance
RVMID
50
kΩ
Buffered Reference Voltage
VREFP
–4%
AVDD/2
+4%
V
VREF source current
IVREF
5
mA
VREF sink current
IVREF
5
mA



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