wm9708 Wolfson Microelectronics plc, wm9708 Datasheet - Page 7

• Manufacturer Part Number: wm9708
• Description: Ac?97 Revision 2.1 Audio Codec
• Manufacturer: Wolfson Microelectronics plc

Production Data
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Test Characteristics:
AVDD = 5V, GND = 0V …………..T
DVDD = 3.3V, GND = 0V …………..T
PARAMETER
Mixer Circuit Specifications (AVDD = 5V) 48kHz sampling
SNR CD path A-weighted
(Note 1)
SNR Other paths A-weighted
(Note 1)
Maximum input voltage
Maximum output voltage on
LINEOUT
THD
Frequency response (+/-1dB)
Input impedance (CD inputs)
Input impedance (other mixer
inputs)
Input impedance MIC inputs
PSRR
DAC Circuit Specifications (AVDD = 3.3V) 48kHz sampling
SNR A-weighted (Note 1)
Full scale output voltage
THD
Frequency response
Transition band
Stop band
Out of band rejection
Spurious tone reduction
PSRR
ADC Circuit Specifications (AVDD = 3.3V) 48kHz sampling
SNR A-weighted (Note 1)
ADC input for full scale output
THD
Frequency response
Transition band
Stop band
Stop band rejection
PSRR
A
= 25
A
SYMBOL
= 25
o
C, unless otherwise stated
o
C, unless otherwise stated
TEST CONDITIONS
VREF = 1.65V
VREF = 1.65V
-3dBFS input
At max gain
At max gain
20 to 20kHz
20 to 20kHz
20 to 20kHz
At any gain
At 0db gain
At 0db gain
-6dBv input
0dBv input
19,200
28,800
19,200
28,800
AGND
1.0
-74
90
85
74
20
10
50
10
55
20
20
MIN
-100
100
100
110
1.0
1.8
0.7
-40
0.7
95
90
15
20
30
50
92
85
40
85
80
40
TYP
PD, Rev 4.2, August 2009
20,000
19,200
28,800
19,200
28,800
AVDD
MAX
WM9708
Vrms
Vrms
Vrms
Vrms
UNIT
kΩ
kΩ
kΩ
kΩ
dB
dB
dB
Hz
kΩ
dB
dB
dB
Hz
Hz
Hz
dB
dB
dB
dB
dB
Hz
Hz
Hz
dB
dB
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