WM8766 Wolfson Microelectronics plc, WM8766 Datasheet - Page 6

• Manufacturer Part Number: WM8766
• Description: 24-bit, 192khz 6-channel Dac
• Manufacturer: Wolfson Microelectronics plc

WM8766
RECOMMENDED OPERATING CONDITIONS
Note: Digital supply DVDD must never be more than 0.3V greater than AVDD for normal operation of the device .
ELECTRICAL CHARACTERISTICS
w
PARAMETER
Digital supply range
Analogue supply range
Ground
Difference DGND to AGND
Test Conditions
AVDD, VREFP = 5V, DVDD = 3.3V, AGND, VREFN = 0V, DGND = 0V, T
PARAMETER
Digital Logic Levels (CMOS Levels)
Input LOW level
Input HIGH level
Output LOW
Output HIGH
Analogue Reference Levels
Reference Voltage
Potential Divider Resistance
DAC Performance (Load = 10k , 50pF)
0dBFs Full Scale Output
Voltage
SNR (Note 1,2,4)
SNR (Note 1,2,4)
SNR (Note 1,2,4)
SNR (Note 1,2,4)
SNR (Note 1,2,4)
Dynamic Range (Note 2,4)
Total Harmonic Distortion (THD)
Mute Attenuation
DAC Channel Separation
Power Supply Rejection Ratio
Supply Current
Analogue Supply Current
Digital Supply Current
AGND, VREFN, DGND
AVDD, VREFP
SYMBOL
SYMBOL
DVDD
PSRR
V
R
DNR
V
V
V
V
VMID
VMID
OH
OL
IH
IL
@ fs = 48kHz, AVDD =
@ fs = 96kHz, AVDD =
(VREFP to VMID) and
A-weighted, -60dB full
1kHz Input, 0dB gain
AVDD, VREFP = 5V
TEST CONDITIONS
(VMID to VREFN)
1kHz 100mVpp
20Hz to 20kHz
@ fs = 192kHz
@ fs = 48kHz
TEST CONDITIONS
DVDD = 3.3V
@ fs = 96kHz
1kHz, 0dBFs
A-weighted,
A-weighted
A-weighted
A-weighted
A-weighted
scale input
100mVp-p
I
I
OH
OL
3.3V
3.3V
= -1mA
=1mA
A
0.7 x DVDD
0.9 x DVDD
= +25
MIN
95
95
o
-0.3
MIN
C, fs = 48kHz, MCLK = 256fs.
2.7
2.7
VREFP/2
VREFP/5
1.0 x
13.8
11.0
TYP
133
103
101
101
101
103
100
100
-90
99
50
45
TYP
0
0
0.3 x DVDD
0.1 x DVDD
MAX
-80
PD Rev 4.1 July 2005
MAX
+0.3
3.6
5.5
Production Data
Vrms
UNIT
UNIT
mA
mA
k
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
V
V
V
V
V
V
V
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