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WM9704CFT/V 数据表(PDF) 4 Page - Wolfson Microelectronics plc

部件名 WM9704CFT/V
功能描述  4-Channel Surround Sound Codec
PDF  35 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM9704CFT/V 数据表(HTML) 4 Page - Wolfson Microelectronics plc

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WM9704Q
Production Data
WOLFSON MICROELECTRONICS LTD
PD Rev 2.3 January 2001
4
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
DAC Circuit Specifications (AVDD = 5V) 48kHz sampling
SNR A-weighted (Note 1)
85
96
dB
Full scale output voltage
VREF = 2.5V
1.0
Vrms
THD
-3dBFS input
74
90
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 = 5V) 48kHz sampling
SNR A-weighted (Note 1)
75
85
dB
ADC input for full scale output
VREF = 2.5V
1.0
Vrms
THD
-6dBV input
74
90
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
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
AVSS
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
10
15
kohm
At max gain
10
20
kohm
Input impedance (other mixer
inputs)
At 0db gain
100
kohm
At max gain
80
kohm
Input impedance MIC inputs
At 0db gain
10
15
kohm
PSRR
20 to 20kHz
40
dB
DAC Circuit Specifications (AVDD = 3.3V) 48kHz sampling
SNR A-weighted (Note 1)
96
dB
Full scale output voltage
VREF = 1.65V
0.7
Vrms
THD
-3dBFS input
90
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



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