WM8772 View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'WM8772' PDF : 73 Pages View PDF
WM8772
Production Data
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Digital supply range
DVDD
2.7
Analogue supply range
AVDD, VREFP
2.7
Ground
AGND, VREFN, DGND
Difference DGND to AGND
-0.3
Note: Digital supply DVDD must never be more than 0.3V greater than AVDD.
TYP
0
0
MAX
3.6
5.5
+0.3
UNIT
V
V
V
V
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD, VREFP = 5V, DVDD = 3.3V, AGND, VREFN = 0V, DGND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs, 32-pin TQFP
version unless otherwise stated. ADC/DAC in Slave Mode unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
DAC Performance (Load = 10kΩ, 50pF)
TYP
MAX
UNIT
0dBFs Full scale output voltage
1.0 x
Vrms
VREFP/5
SNR (Note 1,2,4)
A-weighted,
95
103
dB
@ fs = 48kHz
SNR (Note 1,2,4)
A-weighted
102
dB
@ fs = 96kHz
SNR (Note 1,2,4)
A-weighted
101
dB
@ fs = 192kHz
SNR (Note 1,2,4)
A-weighted
99
dB
@ fs = 48kHz, AVDD =
3.3V
SNR (Note 1,2,4)
A-weighted
99
dB
@ fs = 96kHz, AVDD =
3.3V
Dynamic Range (Note 2,4)
DNR
A-weighted, -60dB full
90
103
dB
scale input
Total Harmonic Distortion (THD)
1kHz, 0dB.Fs
-90
-80
dB
Mute Attenuation
1kHz Input, 0dB gain
100
dB
DAC channel separation
100
dB
Power Supply Rejection Ratio
PSRR
1kHz 100mVp-p
50
dB
20Hz to 20kHz
45
dB
100mVp-p
w
PD Rev 4.2 October 2005
10
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