WM9707 Datasheet, PDF (4/30 Pages) Wolfson Microelectronics plc – AC97 Revision 2.1 Audio Codec with Spdif Output

WM9707
Test Characteristics:
AVSS = 5V, GND = 0V …………..TA = 0^oC to +70^oC, unless otherwise stated
DVDD = 3.3V, GND = 0V …………..TA = 0^oC to +70^oC, unless otherwise stated
PARAMETER
SYMBOL TEST CONDITIONS
DAC Circuit Specifications (AVDD = 5V) 48kHz sampling
SNR A-weighted (Note 1)
Full scale output voltage
VREF = 2.5V
THD
-3dBfs input
Frequency response
Transition band
Stop band
Out of band rejection
Spurious tone reduction
PSRR
20 to 20kHz
ADC Circuit Specifications (AVDD = 5V) 48kHz sampling
SNR A-weighted (Note 1)
ADC input for full scale output
VREF = 2.5V
THD
-6dBv input
Frequency response
Transition band
Stop band
Stop band rejection
PSRR
20 to 20kHz
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
0dBv input
Frequency response (+/-1dB)
Input impedance (CD inputs)
At any gain
Input impedance (other mixer
inputs)
At max gain
At 0db gain
Input impedance MIC inputs
At max gain
At 0db gain
PSRR
20 to 20kHz
DAC Circuit Specifications (AVDD = 3.3V) 48kHz sampling
SNR A-weighted (Note 1)
Full scale output voltage
VREF = 1.65V
THD
-3dBFS input
Frequency response
Transition band
Stop band
Out of band rejection
Spurious tone reduction
PSRR
20 to 20kHz
MIN
85
74 (0.02%)
20
19,200
28,800
75
74
20
19,200
28,800
-74
90
85
AVSS
1.0
74
20
10
50
10
55
TYP
95
1.0
90
-40
-100
40
92
1.0
95
40
100
95
1.0
1.8
90
15
20
100
30
110
50
92
0.7
85
Advanced Information
MAX
19,200
28,800
19,200
28,800
AVDD
20,000
UNIT
dBv
Vrms
dBv
Hz
Hz
Hz
dB
dB
dB
dB
Vrms
dB
Hz
Hz
Hz
dB
dB
dB
dB
Vrms
Vrms
dB
Hz
kohm
kohm
kohm
kohm
kohm
dB
dB
Vrms
dB
Hz
Hz
Hz
dB
dB
dB
WOLFSON MICROELECTRONICS LTD
AI Rev 2.2 January 2001
4