Wolfson WM8580, Instruction Manual

Page: 10 / 103

WM8580
Production Data
w
PD, Rev 4.7, March 2009
10
Test Conditions
AVDD, PVDD, VREFP = 5V, DVDD = 3.3V, AGND, VREFN = 0V, PGND, DGND = 0V, T
A
= +25
o
C, 1kHz Signal, fs = 48kHz, 24-
Bit Data, Slave Mode, MCLK, ADCMCLK = 256fs, 1V
rms
Input Signal Level unless otherwise stated.
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
1kHz 100mV
p-p
50 dB
Power Supply Rejection Ratio
(See note 4)
PSRR
20Hz to 20kHz
100mV
p-p
45 dB
ADC Performance WM8580AGEFT/V, WM8580AGEFT/RV (+25 ˚ C)
Full Scale Input Signal Level (for
ADC 0dB Input) 1.0 x
VREFP/5
V
rms
Input resistance 6 k Ω
Input capacitance 10 pF
A-weighted,
@ fs = 48kHz
90 100 dB
Unweighted,
@ fs = 48kHz
97 dB
A-weighted,
@ fs = 48kHz, AVDD =
3.3V
97 dB
A-weighted,
@ fs = 96kHz
97 dB
Unweighted,
@ fs = 96kHz
94 dB
A-weighted,
@ fs = 96kHz, AVDD =
3.3V
94 dB
A-weighted,
@ fs = 192kHz
97 dB
Unweighted,
@ fs = 192kHz
94 dB
Signal to Noise Ratio (See
Terminology 1,2,4) SNR
A-weighted,
@ fs = 192kHz, AVDD
= 3.3V
94 dB
1kHz, -1dB Full Scale
@ fs = 48kHz
-87 -80 dB
1kHz, -1dB Full Scale
@ fs = 96kHz
-86 dB
Total Harmonic Distortion THD
1kHz, -1dB Full Scale
@ fs = 192kHz
-85 dB
Dynamic Range DNR
-60dB FS 90 100
ADC Channel Separation
1kHz Input 97 dB
Channel Level Matching (See
Terminology 4)
1KHz Signal 0.1 dB
Channel Phase Deviation 1kHz Signal 0.0001 Degree
Offset Error HPF On
HPF Off
0
100
LSB
LSB
Digital Logic Levels (CMOS Levels)
Input LOW level V
IL
0.3 x DVDD V
Input HIGH level V
IH
0.7 x DVDD V
Input leakage current -1 ±0.2 +1 µA
Input capacitance 5 pF
Output LOW V
OL
I
OL
=1mA 0.1 x DVDD V
Output HIGH V
OH
I
OH
= -1mA 0.9 x DVDD V
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