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WM8741 датащи(PDF) 12 Page - Wolfson Microelectronics plc

номер детали WM8741
подробное описание детали  24-bit 192kHz DAC with Advanced Digital Filtering
PDF  63 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8741 датащи(HTML) 12 Page - Wolfson Microelectronics plc

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WM8741
Product Preview
w
PP Rev 1.3 October 2007
12
TEST CONDITIONS
AVDD = 5V, DVDD = 3.3V, AGND, DGND = 0V, TA = +25
oC, 1kHz test signal, fs = 48kHz, MCLK = 256fs unless otherwise
stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Internal Analogue Filter
Bandwidth
-3dB
474
kHz
Passband edge response
20kHz
-0.0077
dB
Analogue Output Levels
PCM full scale differential
output level
Into 10kΩ load, 0dBFS input
2
VRMS
DSD Direct full scale
differential output level
Into 10kΩ load, 0dBFS input
1.34
VRMS
DSD Plus full scale
differential output level
Into 10kΩ load, 0dBFS input
1.4
VRMS
Minimum resistance load
To midrail or AC coupled
2
kΩ
Maximum capacitance load
1
nF
Output DC level
AVDD/2
V
Reference Levels
Potential divider resistance
AVDD to VMIDL/VMIDR and
VMIDL/VMIDR to AGND
10
kΩ
Voltage at VMIDL/VMIDR
AVDD/2
V
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 over a 20Hz to 20kHz bandwidth.
2.
All performance measurements done with 20kHz low pass filter. Failure to use such a filter will result in higher THD
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.



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