WM8741
Production Data
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Digital supply range
SYMBOL
DVDD
TEST CONDITIONS
MIN
3.0
TYP
3.3
5
MAX
3.6
UNIT
V
Analogue supply range
Ground
AVDD
4.5
5.5
V
AGND, DGND
0
V
Difference DGND to AGND
Analogue operating current
Digital operating current
Analogue standby current
-0.3
0
+0.3
V
IAVDD
IDVDD
AVDD = 5V
DVDD = 3.3V
AVDD = 5V
55
40
45
mA
mA
mA
IAVDD (Standby)
Clocks stopped
DVDD = 3.3V
Clocks stopped
Digital standby current
IDVDD (Standby)
1.5
mA
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS
AVDD = 5V, DVDD = 3.3V, AGND, DGND = 0V, TA = +25oC, 1kHz test signal, fs = 48kHz, MCLK = 512fs unless otherwise
stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Logic Levels
Input LOW level
VIL
VIH
0.3 x DVDD
0.1 x DVDD
V
V
V
V
Input HIGH level
0.7 x DVDD
0.9 x DVDD
Output LOW level
Output HIGH level
DSD Input Characteristics
DSD reference level
VOL
VOH
IOL = 2mA
IOH = 2mA
DSD Direct or DSD Plus Mode
0
dBDSD
%
50
DAC Performance
Signal to Noise Ratio
(Note 1)
SNR
A-weighted mono
@ fs = 48kHz
128
125
123
120
122
125
dB
dB
dB
dB
dB
dB
A-weighted stereo
@ fs = 48kHz
120
A-weighted stereo
@ fs = 96kHz
A-weighted stereo
@ fs = 192kHz
Non-weighted stereo
@ fs = 48kHz
Dynamic Range
(Note 2)
DNR
THD
A=weighted,
-60dB full scale input
Mono 0dB @ fs = 48kHz
Stereo 0dB @ fs = 48kHz
Stereo 0dB @ fs = 96kHz
Stereo 0dB @ fs = 192kHz
1kHz
Total Harmonic Distortion
(Note 2)
-100
-100
-100
-100
130
0.1
dB
dB
dB
dB
Channel Separation
dB
Channel Level Matching
Channel Phase Deviation
dB
0.01
-80
Degree
dB
Power Supply Rejection
Ratio
PSRR
100mVpp at 1kHz
20Hz to 20kHz 100mVpp
-67
dB
PD, Rev 4.2, October 2009
10
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
