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WM8591GEDS/RV Arkusz danych(PDF) 7 Page - Wolfson Microelectronics plc

Numer części WM8591GEDS/RV
Szczegółowy opis  24 BIT, 192 KHZ STEREO CODEC
PDF  50 Pages
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Producent  WOLFSON [Wolfson Microelectronics plc]
Strona internetowa  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8591GEDS/RV Arkusz danych(HTML) 7 Page - Wolfson Microelectronics plc

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Product Preview
WM8591
w
PP Rev 1.0 May 2005
7
Test Conditions
AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25
oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.
ADC Channel Separation
1kHz Input
85
dB
Channel Level Matching
1kHz signal
0.1
dB
Channel Phase Deviation
1kHz signal
0.06
Degree
Programmable Gain Step Size
0.25
0.5
0.75
dB
Programmable Gain Range
(Analogue)
1kHz Input
-21
+24
dB
Programmable Gain Range
(Digital)
1kHz Input
-103
-21.5
dB
Mute Attenuation (Note 4)
1kHz Input, 0dB gain
97
dB
1kHz 100mVpp
59
dB
Power Supply Rejection Ratio
PSRR
20Hz to 20kHz
100mVpp
56
dB
PGA Gain = +24dB
4.5
kΩ
PGA Gain = 0dB
37.4
kΩ
Input Resistance
PGA Gain = -21dB
69.0
kΩ
Input Capacitance
1
pF
Supply Current
Analogue supply current
AVDD = 5V
54
mA
Digital supply current
DVDD = 3.3V
7.4
mA
Analogue Powerdown Current
AVDD = 5V
132
µA
Digital Powerdown Current
DVDD = 3.3V
2.7
µA
Crosstalk
1kHz signal, ADC fs =
48kHz, DAC fs =
44.1kHz
115
dB
DAC to ADC
20kHz signal, ADC fs =
48kHz, DAC fs =
44.1kHz
130
dB
1kHz signal, ADC fs =
48kHz, DAC fs =
44.1kHz
131
dB
ADC to DAC
20kHz signal, ADC fs =
48kHz, DAC fs =
44.1kHz
138
dB
Notes:
1.
Ratio of output level with 1kHz full scale input, to the output level with all zeros into the digital input, measured ‘A’
weighted.
2.
All performance measurements done with 20kHz low pass filter, and where noted an A-weight filter. Failure to use
such a filter will result in higher THD+N and lower SNR and Dynamic Range readings than are found in the Electrical
Characteristics. The low pass filter removes out of band noise; although it is not audible it may affect dynamic
specification values.
3.
All performance measurement done using certain timings conditions (Please refer to section ‘Digital Audio Interface’).
4.
A better MUTE Attenuation can be achieved if the ADC gain is set to minimum.



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