WM8591 데이터 시트보기 (PDF) - Wolfson Microelectronics plc
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WM8591 Datasheet PDF : 51 Pages
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WM8591
Production Data
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
Digital supply range
DVDD
2.7
3.3
Analogue supply range
AVDD, DACREFP
4.5
5
Ground
AGND, DGND,
0
DACREFN,
ADCREFGND
Difference DGND to AGND
-0.3
0
Notes:
1. Digital supply DVDD must never be more than 0.3V greater than AVDD in normal operation.
2. It is possible to hold the device in reset with AVDD=0V and DVDD=3.3V.
MAX
3.6
5.5
+0.3
UNIT
V
V
V
V
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Logic Levels (CMOS Levels)
Input LOW level
VIL
Input HIGH level
VIH
0.7 x DVDD
0.3 x DVDD
V
V
Output LOW
VOL
Output HIGH
VOH
Digital Input Leakage Current
IOL=1mA
IOH=1mA
0.1 x DVDD
V
0.9 x DVDD
V
0.9
µA
Digital Input Leakage
Capacitance
5
pF
Analogue Reference Levels
Reference voltage
VVMID
Potential divider resistance
RVMID
DAC Performance (Load = 10kΩ, 50pF)
AVDD/2
V
50
kΩ
0dBFs Full scale output voltage
2.0 x
Vrms
AVDD/5
SNR (Note 1,2)
SNR
A-weighted,
105
110
dB
@ fs = 48kHz
SNR (Note 1,2)
SNR
A-weighted
109
dB
@ fs = 96kHz
Dynamic Range (Note 2)
DNR
A-weighted, -60dB
105
110
dB
full scale input
Total Harmonic Distortion
THD
1kHz, 0dBFs
-97
-90
dB
DAC channel separation
130
dB
Channel Level Matching
1kHz signal
0.1
dB
Channel Phase Deviation
1kHz signal
0.04
Degree
Power Supply Rejection Ratio
PSRR
1kHz 100mVpp
50
dB
20Hz to 20kHz
45
dB
100mVpp
ADC Performance
Input Signal Level (0dB)
1.0 x
Vrms
AVDD/5
SNR (Note 1,2)
SNR
A-weighted, 0dB gain
93
102
dB
@ fs = 48kHz
ADCMCLK2DAC=1
SNR (Note 1,2)
SNR
A-weighted, 0dB gain
99
dB
@ fs = 96kHz
64 x OSR
ADCMCLK2DAC=1
w
PD Rev 4.0 December 2005
6
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