WM8590
Pre-Production
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
2.7
TYP
3.3
5
MAX
3.6
UNIT
Digital supply range
Analogue supply range
Ground
DVDD
V
V
V
AVDD, DACREFP
4.5
5.5
AGND, DGND,
DACREFN,
0
ADCREFGND
Difference DGND to AGND
-0.3
0
+0.3
V
Note:
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.
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
VIH
0.3 x DVDD
0.1 x DVDD
V
V
Input HIGH level
0.7 x DVDD
0.9 x DVDD
Output LOW
VOL
VOH
I
OL=1mA
V
Output HIGH
IOH=1mA
V
Digital Input Leakage Current
0.9
5
µA
pF
Digital Input Leakage
Capacitance
Analogue Reference Levels
Reference voltage
VVMID
RVMID
AVDD/2
50
V
Potential divider resistance
kΩ
DAC Performance (Load = 10kΩ, 50pF)
0dBFs Full scale output voltage
2.0 x
AVDD/5
110
Vrms
dB
SNR (Note 1,2)
SNR
A-weighted,
@ fs = 48kHz
A-weighted
100
100
SNR (Note 1,2)
SNR
109
110
dB
@ fs = 96kHz
Dynamic Range (Note 2)
DNR
THD
A-weighted, -60dB
full scale input
dB
Total Harmonic Distortion
DAC channel separation
Channel Level Matching
Channel Phase Deviation
Power Supply Rejection Ratio
1kHz, 0dBFs
-97
130
0.1
0.04
50
-87
dB
dB
1kHz signal
1kHz signal
dB
Degree
dB
PSRR
1kHz 100mVpp
20Hz to 20kHz
100mVpp
45
dB
ADC Performance
Input Signal Level (0dB)
2.0 x
AVDD/5
102
3.0 x
Vrms
dB
AVDD/5
SNR (Note 1,2)
SNR (Note 1,2)
SNR
SNR
A-weighted, 0dB gain
@ fs = 48kHz
93
ADCMCLK2DAC=1
A-weighted, 0dB gain
@ fs = 96kHz
99
dB
64 x OSR
PP Rev 3.3 September 2005
6
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
