WM8741 Datasheet, PDF (10/66 Pages) Wolfson Microelectronics plc – 24-bit 192kHz DAC with Advanced Digital Filtering

WM8741
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Digital supply range
Analogue supply range
Ground
Difference DGND to AGND
Analogue operating current
Digital operating current
Analogue standby current
Digital standby current
SYMBOL
DVDD
AVDD
AGND, DGND
I_AVDD
I_DVDD
I_{AVDD (Standby)}
I_{DVDD (Standby)}
TEST CONDITIONS
AVDD = 5V
DVDD = 3.3V
AVDD = 5V
Clocks stopped
DVDD = 3.3V
Clocks stopped
MIN
3.15
4.5
-0.3
Production Data
TYP
MAX
UNIT
3.3
3.6
V
5
5.5
V
0
V
0
+0.3
V
55
mA
40
mA
45
mA
1.5
mA
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS
AVDD = 5V, DVDD = 3.3V, AGND, DGND = 0V, T_A = +25^oC, 1kHz test signal, fs = 48kHz, MCLK = 512fs unless otherwise
stated.
PARAMETER
Digital Logic Levels
Input LOW level
Input HIGH level
Output LOW level
Output HIGH level
DSD Input Characteristics
DSD reference level
SYMBOL
TEST CONDITIONS
MIN
V_IL
V_IH
0.7 x DVDD
V_OL
I_OL = 2mA
V_OH
I_OH = 2mA
0.9 x DVDD
DSD Direct or DSD Plus Mode
DAC Performance
Signal to Noise Ratio
SNR
A-weighted mono
(Note 1)
@ fs = 48kHz
A-weighted stereo
120
@ fs = 48kHz
A-weighted stereo
@ fs = 96kHz
A-weighted stereo
@ fs = 192kHz
Non-weighted stereo
@ fs = 48kHz
Dynamic Range
(Note 2)
DNR
A=weighted,
-60dB full scale input
Total Harmonic Distortion
(Note 2)
THD
Mono 0dB @ fs = 48kHz
Stereo 0dB @ fs = 48kHz
Stereo 0dB @ fs = 96kHz
Stereo 0dB @ fs = 192kHz
Channel Separation
1kHz
Channel Level Matching
Channel Phase Deviation
Power Supply Rejection
Ratio
PSRR
100mVpp at 1kHz
20Hz to 20kHz 100mVpp
TYP
MAX
UNIT
0.3 x DVDD V
V
0.1 x DVDD V
V
0
dB_DSD
50
%
128
dB
125
dB
123
dB
120
dB
122
dB
125
dB
-100
-100
-100
-100
130
0.1
0.01
-80
-67
dB
dB
dB
dB
dB
dB
Degree
dB
dB
w
PD, Rev 4.3, February 2013
10