WM8590_06 Datasheet, PDF (7/51 Pages) Wolfson Microelectronics plc – 24-bit, 192kHz Stereo CODEC

Production Data
WM8590
Test Conditions
AVDD = 5V, DVDD = 3.3V, AGND = 0V, DGND = 0V, TA = +25^oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.
ADC Performance
Input Signal Level (0dB)
2.0 x
3.0 x
Vrms
AVDD/5
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
Dynamic Range (note 2)
DNR
A-weighted, -60dB
93
102
dB
full scale input
ADCMCLK2DAC=1
Total Harmonic Distortion
THD
1kHz, 0dBFs
-90
dB
ADCMCLK2DAC=1
1kHz, -3dBFs
-95
-85
dB
ADCMCLK2DAC=1
ADC Channel Separation
1kHz Input
85
dB
Channel Level Matching
1kHz signal
0.1
dB
Channel Phase Deviation
1kHz signal
0.06
Degree
Programmable Gain Step Size
0.25
0.5
0.75
dB
Programmable Gain Range
1kHz Input
-21
+24
dB
(Analogue)
Programmable Gain Range
1kHz Input
-103
-21.5
dB
(Digital)
Mute Attenuation (Note 4)
1kHz Input, 0dB gain
97
dB
Power Supply Rejection Ratio
PSRR
1kHz 100mVpp
59
dB
Input Resistance
20Hz to 20kHz
56
dB
100mVpp
PGA Gain = +24dB
4.5
kΩ
PGA Gain = 0dB
37.4
kΩ
PGA Gain = -21dB
69.0
kΩ
Input Capacitance
1
pF
Supply Current
Analogue supply current
AVDD = 5V
60
mA
Digital supply current
DVDD = 3.3V
6
mA
Analogue Powerdown Current
AVDD = 5V
132
µA
Digital Powerdown Current
DVDD = 3.3V
2.7
µA
Crosstalk
DAC to ADC
1kHz signal, ADC fs =
115
dB
48kHz, DAC fs =
44.1kHz
20kHz signal, ADC fs =
130
dB
48kHz, DAC fs =
44.1kHz
ADC to DAC
1kHz signal, ADC fs =
131
dB
48kHz, DAC fs =
44.1kHz
20kHz signal, ADC fs =
138
dB
48kHz, DAC fs =
44.1kHz
w
PD Rev 4.0 January 2006
7