WM8581 查看數據表（PDF） - Wolfson Microelectronics plc
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WM8581 Datasheet PDF : 94 Pages
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WM8581
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Digital supply range
DVDD
2.7
Analogue supply range
AVDD, PVDD
2.7
Ground
AGND, VREFN, DGND.
PGND
Difference DGND to
-0.3
AGND/PGND
Note: Digital supply DVDD must never be more than 0.3V greater than AVDD.
Table 4 Recommended Operating Conditions
TYP
0
0
MAX
3.6
5.5
+0.3
UNIT
V
V
V
V
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD, PVDD, VREFP = 5V, DVDD = 3.3V, AGND, VREFN = 0V, PGND, DGND = 0V, TA = +25oC, 1kHz Signal, fs = 48kHz,
24-Bit Data, Slave Mode, MCLK, ADCMCLK = 256fs, 1Vrms Input Signal Level unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
MAX
UNIT
DAC Performance (Load = 10kΩ, 50pF)
0dBFs Full scale output voltage
1.0 x
Vrms
VREFP/5
Signal to Noise Ratio (Note
SNR
A-weighted,
103
dB
1,2,4)
@ fs = 48kHz
Unweighted,
100
dB
@ fs = 48kHz
A-weighted,
99
dB
@ fs = 48kHz, AVDD =
3.3V
A-weighted,
101
dB
@ fs = 96kHz
Unweighted,
98
dB
@ fs = 96kHz
A-weighted,
99
dB
@ fs = 96kHz, AVDD =
3.3V
A-weighted,
101
dB
@ fs = 192kHz
Unweighted,
98
dB
@ fs = 192kHz
A-weighted,
99
dB
@ fs = 192kHz, AVDD
= 3.3V
Dynamic Range (Note 2,4)
DNR
A-weighted, -60dB full
103
dB
scale input
Total Harmonic Distortion
THD 1kHz, 0dB Full Scale @
-90
dB
fs = 48kHz
1kHz, 0dB Full Scale @
-87
dB
fs = 96kHz
1kHz, 0dB Full Scale @
-84
dB
fs = 192kHz
DAC Channel separation
100
dB
Mute Attenuation
1kHz Input, 0dB gain
100
dB
Output Offset Error
2
mV
w
PP Rev 1.0 March 2006
9
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