wm8742 Wolfson Microelectronics plc, wm8742 Datasheet - Page 10

• Manufacturer Part Number: wm8742
• Description: 24-bit 192khz Dac With Advanced Digital Filtering
• Manufacturer: Wolfson Microelectronics plc

WM8742
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
w
Digital supply range
Analogue supply range
Ground
Difference DGND to AGND
Analogue operating current
Digital operating current
Analogue standby current
Digital standby current
TEST CONDITIONS
AVDD = 5V, DVDD = 3.3V, AGND, DGND = 0V, T
stated.
PARAMETER
Digital Logic Levels
Input LOW level
Input HIGH level
Output LOW level
Output HIGH level
DSD Input Characteristics
DSD reference level
DAC Performance
Signal to Noise Ratio
(Note 1)
Dynamic Range
(Note 2)
Total Harmonic Distortion
(Note 2)
Channel Separation
Channel Level Matching
Channel Phase Deviation
Power Supply Rejection
Ratio
PARAMETER
SYMBOL
PSRR
AGND, DGND
DNR
THD
SNR
V
V
V
V
I
I
OH
AVDD (Standby)
DVDD (Standby)
OL
IL
IH
SYMBOL
DVDD
AVDD
I
I
AVDD
DVDD
DSD Direct or DSD Plus Mode
Stereo 0dB @ fs = 192kHz
Stereo 0dB @ fs = 48kHz
Stereo 0dB @ fs = 96kHz
20Hz to 20kHz 100mVpp
Mono 0dB @ fs = 48kHz
-60dB full scale input
Non-weighted stereo
TEST CONDITIONS
A-weighted stereo
A-weighted stereo
A-weighted stereo
100mVpp at 1kHz
A-weighted mono
A
@ fs = 192kHz
@ fs = 48kHz
@ fs = 96kHz
@ fs = 48kHz
@ fs = 48kHz
A=weighted,
= +25
TEST CONDITIONS
I
I
OH
OL
Clocks stopped
Clocks stopped
1kHz
DVDD = 3.3V
DVDD = 3.3V
= 2mA
= 2mA
AVDD = 5V
AVDD = 5V
o
C, 1kHz test signal, fs = 48kHz, MCLK = 512fs unless otherwise
0.7 x DVDD
0.9 x DVDD
-0.3
MIN
3.0
4.5
MIN
118
TYP
3.3
1.5
55
40
45
5
0
0
-100
-100
-100
-100
0.01
TYP
126
123
121
118
120
125
130
0.1
-80
-67
50
0
PD, Rev 4.2,August 2009
0.3 x DVDD
0.1 x DVDD
MAX
+0.3
3.6
5.5
MAX
Production Data
Degree
UNIT
mA
mA
mA
mA
dB
UNIT
V
V
V
V
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
V
V
V
V
DSD
10