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WM9708 数据表(PDF) 5 Page - Wolfson Microelectronics plc

部件名 WM9708
功能描述  AC97 Revision 2.1 Audio Codec
PDF  28 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM9708 数据表(HTML) 5 Page - Wolfson Microelectronics plc

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Advanced Information
WM9708
WOLFSON MICROELECTRONICS LTD
AI Rev 2.0 April 2001
5
Test Characteristics:
AVDD = 5V, GND = 0V …………..TA = 0
oC to +70oC, unless otherwise stated
DVDD = 3.3V, GND = 0V …………..TA = 0
oC to +70oC, unless otherwise stated
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Mixer Circuit Specifications (AVDD = 5V) 48kHz sampling
SNR CD path A-weighted
(Note 1)
90
100
dB
SNR Other paths A-weighted
(Note 1)
85
95
dB
Maximum input voltage
AGND
1.0
AVDD
Vrms
Maximum output voltage on
LINEOUT
1.0
1.8
Vrms
THD
0dBv input
74
90
dB
Frequency response (+/-1dB)
20
20,000
Hz
Input impedance (CD inputs)
At any gain
15
kohm
At max gain
10
20
kohm
Input impedance (other mixer
inputs)
At 0db gain
50
100
kohm
At max gain
10
30
kohm
Input impedance MIC inputs
At 0db gain
55
110
kohm
PSRR
20 to 20kHz
50
dB
DAC Circuit Specifications (AVDD = 3.3V) 48kHz sampling
SNR A-weighted (Note 1)
92
dB
Full scale output voltage
VREF = 1.65V
0.7
Vrms
THD
-3dBFS input
85
dB
Frequency response
20
19,200
Hz
Transition band
19,200
28,800
Hz
Stop band
28,800
Hz
Out of band rejection
-40
dB
Spurious tone reduction
-100
dB
PSRR
20 to 20kHz
40
dB
ADC Circuit Specifications (AVDD = 3.3V) 48kHz sampling
SNR A-weighted (Note 1)
85
dB
ADC input for full scale output
VREF = 1.65V
0.7
Vrms
THD
-6dBv input
80
dB
Frequency response
20
19,200
Hz
Transition band
19,200
28,800
Hz
Stop band
28,800
Hz
Stop band rejection
-74
dB
PSRR
20 to 20kHz
40
dB



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