WM8594
Product Preview
Test Conditions
AVDD2=9V, AVDD1=DVDD=3.3V, AGND1=AGND2=0V, DGND=0V, TA=+25˚C, 1kHz signal, fs=48kHz, MCLK=256fs unless otherwise stated
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TBD
16
TYP
MAX
UNIT
Vrms
Ω
Analogue Headphone Outputs
Output signal level (0dB)
RL = 32Ω
0.8x
TBD
AVDD2 / 9
Minimum resistance load
Analogue Inputs
Input signal level (0dB)
2.0 x
AVDD1/3.3
11
TBD
12
Vrms
Input impedance
10
kΩ
kΩ
Extended input impedance
(Note 3)
External resistor =
21
10kΩ
Input capacitance
DAC Performance
Signal to Noise Ratio1,5
TBD
100
100
100
nF
dB
dB
dB
SNR
A-weighted
@ fs = 48kHz
A-weighted
TBD
@ fs = 96kHz
A-weighted
@ fs = 192kHz
Dynamic Range2,5
DNR
THD
A-weighted, -60dB full
scale input
TBD
100
-90
dB
dB
Total Harmonic Distortion3,5
1kHz, 0dBFS
@ fs = 48kHz
1kHz, 0dBFS
@ fs = 96kHz
1kHz, 0dBFS
@ fs = 192kHz
TBD
-90
-90
dB
dB
Channel Separation4,5
100
0.1
dB
dB
Channel Level Matching
Channel Phase Deviation
Power supply rejection ratio
0.05
50
Degree
dB
PSRR
SNR
1kHz, 100mVpp
TBD
20Hz to 20kHz,
100mVpp
TBD
dB
ADC Performance
Signal to Noise Ratio1,5
A-weighted, 0dB gain
@ fs = 48kHz
TBD
TBD
100
97
dB
dB
dB
dB
A-weighted, 0dB gain
@ fs = 96kHz
Dynamic Range2,5
DNR
THD
A-weighted, -60dB full
scale input
100
-90
Total Harmonic Distortion3,5
1kHz, -1dBFS
@ fs = 48kHz
1kHz, -1dBFS
@ fs = 96kHz
TBD
-87
dB
Channel Separation4,5
100
0.1
dB
dB
Channel Level Matching
Channel Phase Deviation
Power Supply Rejection Ratio
0.05
50
Degree
dB
PSRR
TBD
TBD
dB
Analogue Bypass Paths
Signal to Noise Ratio1,5
Dynamic Range2,5
SNR
DNR
THD
A-weighted
A-weighted
100
100
90
dB
dB
dB
Total Harmonic Distortion3,5
PP Rev 1.0 January 2007
8
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
