WM8766 데이터 시트보기 (PDF) - Cirrus Logic
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WM8766 Datasheet PDF : 36 Pages
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WM8766
Production Data
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
Digital supply range
DVDD
2.7
3.6
Analogue supply range
AVDD, VREFP
2.7
5.5
Ground
AGND, VREFN, DGND
0
Difference DGND to AGND
-0.3
0
+0.3
Note: Digital supply DVDD must never be more than 0.3V greater than AVDD for normal operation of the device .
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.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
MAX
Digital Logic Levels (CMOS Levels)
Input LOW level
VIL
0.3 x DVDD
Input HIGH level
VIH
Output LOW
VOL
Output HIGH
VOH
Analogue Reference Levels
IOL=1mA
IOH= -1mA
0.7 x DVDD
0.9 x DVDD
0.1 x DVDD
Reference Voltage
VVMID
VREFP/2
Potential Divider Resistance
RVMID
(VREFP to VMID) and
133
(VMID to VREFN)
DAC Performance (Load = 10kΩ, 50pF)
0dBFs Full Scale Output
Voltage
1.0 x
VREFP/5
SNR (Note 1,2,4)
A-weighted,
95
103
@ fs = 48kHz
SNR (Note 1,2,4)
A-weighted
101
@ fs = 96kHz
SNR (Note 1,2,4)
A-weighted
101
@ fs = 192kHz
SNR (Note 1,2,4)
A-weighted
101
@ fs = 48kHz, AVDD =
3.3V
SNR (Note 1,2,4)
A-weighted
99
@ fs = 96kHz, AVDD =
3.3V
Dynamic Range (Note 2,4)
DNR
A-weighted, -60dB full
95
103
scale input
Total Harmonic Distortion (THD)
1kHz, 0dBFs
-90
-80
Mute Attenuation
1kHz Input, 0dB gain
100
DAC Channel Separation
100
Power Supply Rejection Ratio
PSRR
1kHz 100mVpp
50
20Hz to 20kHz
45
100mVp-p
Supply Current
Analogue Supply Current
AVDD, VREFP = 5V
13.8
Digital Supply Current
DVDD = 3.3V
11.0
UNIT
V
V
V
V
V
kΩ
Vrms
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
mA
mA
w
PD Rev 4.1 July 2005
6
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