WM8746 Wolfson Microelectronics plc, WM8746 Datasheet - Page 6

• Manufacturer Part Number: WM8746
• Description: 24-bit, 192khz 6-channel Dac With Volume Control
• Manufacturer: Wolfson Microelectronics plc

WM8746
DC ELECTRICAL CHARACTERISTICS
Note:
1.
AC ELECTRICAL CHARACTERISTICS
w
PARAMETER
Digital supply range
Analogue supply range
Ground
Difference DGND to AGND
Analogue supply current
Digital supply current
Analogue supply current
Digital supply current
Analogue supply current
Digital supply current
Test Conditions
AVDD = DVDD = 5V, AGND = 0V = DGND = 0V, T
PARAMETER
Digital Logic Levels (TTL Levels)
Input LOW level
Input HIGH level
Output LOW
Output HIGH
Analogue Reference Levels
Reference voltage
Potential divider resistance
DAC Output (Load = 10kΩ 50pF)
0dBFs Full scale output voltage
SNR (Note 1,2,3)
SNR (Note 1,2,3)
SNR (Note 1,2,3)
SNR (Note 1,2,3)
SNR (Note 1,2,3)
SNR (Note 1,2,3)
THD (Note 1,2,3)
THD+N (Dynamic range, Note 2)
DAC channel separation
The digital supply voltages must not exceed the analogue supply voltages.
AGND, GR0, GR1, DGND
AVDD1
SYMBOL
SYMBOL
DVDD
V
R
V
V
,
V
V
CAP
CAP
AVDD2
OH
OL
IH
IL
Non ‘A’ weighted @ fs
A
AVDD=DVDD=3.3V
TEST CONDITIONS
AVDD=DVDD=3.3V
AVDD=DVDD=5V
= +25
Power down, stop clock
Power down, stop clock
At DAC outputs
1kHz, -60dBFs
@ fs = 192kHz
@ fs = 48kHz
@ fs = 48kHz
TEST CONDITIONS
A-weighted,
A-weighted,
@ fs = 96kHz
@ fs = 96kHz
A-weighted
A-weighted
A-weighted
1kHz, 0dBFs
I
I
OL
OH
= 48kHz
AVDD = 3.3V
DVDD = 3.3V
o
AVDD = 5V
DVDD = 5V
C, fs = 48kHz, SCKI = 256fs unless otherwise stated.
= 2mA
= 2mA
-100
100
MIN
2.0
2.4
-0.3
MIN
3.0
3.0
AVDD1/5
(AVDD2-
GR2)/2
1.1 x
-106
TYP
106
105
105
103
103
103
100
25k
-95
0.09
TYP
0.4
58
22
57
11
0
0
PD, October 2008, Rev 4.2
MAX
0.8
0.4
MAX
+0.3
5.5
5.5
Production Data
UNIT
UNIT
V
mA
mA
mA
mA
mA
mA
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
V
V
V
V
V
V
V
V
V
rms
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