WM8569
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RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
DVDD
TEST CONDITIONS
MIN
2.7
TYP
MAX
3.6
UNIT
Digital supply range
Analogue supply range
Ground
V
V
V
V
AVDD, VREFP
AGND, VREFN, DGND
2.7
5.5
0
0
Difference DGND to AGND
-0.3
+0.3
Note: Digital supply DVDD must never be more than 0.3V greater than AVDD.
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD, VREFP = 5V, DVDD = 3.3V, AGND, VREFN = 0V, DGND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Vrms
dB
DAC Performance (Load = 10kΩ, 50pF)
0dBFs Full scale output voltage
1.0 x
VREFP/5
103
SNR (Note 1,2,4)
SNR (Note 1,2,4)
SNR (Note 1,2,4)
SNR (Note 1,2,4)
A-weighted,
@ fs = 48kHz
A-weighted
102
101
99
dB
@ fs = 96kHz
A-weighted
dB
@ fs = 192kHz
A-weighted
dB
@ fs = 48kHz, AVDD =
3.3V
SNR (Note 1,2,4)
A-weighted
99
dB
dB
@ fs = 96kHz, AVDD =
3.3V
Dynamic Range (Note 2,4)
DNR
A-weighted, -60dB full
scale input
103
Total Harmonic Distortion (THD)
Mute Attenuation
1kHz, 0dB.Fs
-90
100
100
50
dB
dB
dB
dB
dB
1kHz Input, 0dB gain
DAC channel separation
Power Supply Rejection Ratio
PSRR
1kHz 100mVp-p
20Hz to 20kHz
100mVp-p
45
ADC Performance
Input Signal Level (0dB)
2.0 x
REFADC/5
20
Vrms
Input resistance
Input capacitance
SNR (Note 1,2,4)
kΩ
pF
dB
10
A-weighted, 0dB gain
@ fs = 48kHz
100
SNR (Note 1,2,4)
SNR (Note 1,2,4)
A-weighted, 0dB gain
@ fs = 96kHz
100
93
dB
dB
A-weighted, 0dB gain
@ fs = 48kHz, AVDD =
3.3V
SNR (Note 1,2,4)
A-weighted, 0dB gain
93
dB
@ fs = 96kHz, AVDD
= 3.3V
Total Harmonic Distortion (THD)
ADC Channel Separation
1kHz, -1dBFs
1kHz Input
-82
90
dB
dB
PP Rev 1.1 December 2005
6
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
