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WM8591 Arkusz danych(PDF) 6 Page - Wolfson Microelectronics plc

Numer części WM8591
Szczegółowy opis  24 BIT, 192 KHZ STEREO CODEC
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Producent  WOLFSON [Wolfson Microelectronics plc]
Strona internetowa  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8591 Arkusz danych(HTML) 6 Page - Wolfson Microelectronics plc

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WM8591
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PP Rev 1.0 May 2005
6
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital supply range
DVDD
2.7
3.3
3.6
V
Analogue supply range
AVDD, DACREFP
4.5
5
5.5
V
Ground
AGND, DGND,
DACREFN,
ADCREFGND
0
V
Difference DGND to AGND
-0.3
0
+0.3
V
Note: Digital supply DVDD must never be more than 0.3V greater than AVDD.
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25
oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Logic Levels (CMOS Levels)
Input LOW level
VIL
0.3 x DVDD
V
Input HIGH level
VIH
0.7 x DVDD
V
Output LOW
VOL
IOL=1mA
0.1 x DVDD
V
Output HIGH
VOH
IOH=1mA
0.9 x DVDD
V
Digital Input Leakage Current
0.9
µA
Digital Input Leakage
Capacitance
TBD
pF
Analogue Reference Levels
Reference voltage
VVMID
AVDD/2
V
Potential divider resistance
RVMID
50
kΩ
DAC Performance (Load = 10kΩ, 50pF)
0dBFs Full scale output voltage
2.0 x
AVDD/5
Vrms
SNR (Note 1,2)
SNR
A-weighted,
@ fs = 48kHz
105
110
dB
SNR (Note 1,2)
SNR
A-weighted
@ fs = 96kHz
109
dB
Dynamic Range (Note 2)
DNR
A-weighted, -60dB
full scale input
100
110
dB
Total Harmonic Distortion
THD
1kHz, 0dBFs
-97
-90
dB
DAC channel separation
130
dB
Channel Level Matching
1kHz signal
0.1
dB
Channel Phase Deviation
1kHz signal
0.04
Degree
1kHz 100mVpp
50
dB
Power Supply Rejection Ratio
PSRR
20Hz to 20kHz
100mVpp
45
dB
ADC Performance
Input Signal Level (0dB)
1.0 x
AVDD/5
Vrms
SNR (Note 1,2)
SNR
A-weighted, 0dB gain
@ fs = 48kHz
93
102
dB
SNR (Note 1,2)
SNR
A-weighted, 0dB gain
@ fs = 96kHz
64 x OSR
99
dB
Dynamic Range (note 2)
DNR
A-weighted, -60dB
full scale input
102
dB
1kHz, 0dBFs
-90
dB
Total Harmonic Distortion
THD
1kHz, -3dBFs
-95
-85
dB


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