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WM8521 Datasheet(PDF) 6 Page - Wolfson Microelectronics plc

Part # WM8521
Description  Stereo DAC with Integrated Output Stage for 2Vrms LINE OUT
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8521 Datasheet(HTML) 6 Page - Wolfson Microelectronics plc

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WM8521
Production Data
w
PD Rev 4.1 August 2006
6
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
WM8521HC Analogue
supply range
AVDD
7.6
12
13.2
V
WM8521H9 Analogue
supply range
AVDD
7.6
9
13.2
V
Digital supply range
DVDD
2.7
3.3
3.6
V
Ground
AGND / DGND
0
V
IAVDD
AVDD = 12V
28.0
WM8521HC Supply current
IDVDD
DVDD = 3.3V
4.0
mA
IAVDD
AVDD = 9V
25.0
WM8521H9 Supply current
IDVDD
DVDD = 3.3V
4.0
mA
IAVDD
AVDD = 12V
22.8
WM8521HC Power down
current (note 4)
IDVDD
DVDD = 3.3V
0.014
mA
IAVDD
AVDD = 9V
17.1
WM8521H9 Power down
current (note 4)
IDVDD
DVDD = 3.3V
0.014
mA
Note:
1.
AVDD and DVDD are fully independent and can be applied in any order without damage to the device.
ELECTRICAL CHARACTERISTICS
Test Conditions
WM8521HC: AVDD = 12V, DVDD = 3.3V, AGND / DGND = 0V, TA = +25
oC, fs = 48kHz, MCLK = 256fs unless otherwise
stated.
WM8521H9: AVDD = 9V, DVDD = 3.3V, AGND / DGND = 0V, TA = +25
oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Logic Levels (CMOS Levels)
Input LOW level
VIL
0.3 x DVDD
V
Input HIGH level
VIH
0.7 x DVDD
V
Output LOW
VOL
IOL = 1mA
0.1 x DVDD
V
Output HIGH
VOH
IOH = -1mA
0.9 x DVDD
V
Analogue Reference Levels
Reference voltage (CAP)
AVDD/2
V
Potential divider resistance
RCAP
VDD to CAP and CAP
to GND
50
k
WM8521HC DAC Output (Load = 10k
Ω. 50pF)
0dBFs Full scale output voltage
At DAC outputs
1.9
2.0
2.1
Vrms
SNR (Terminology Note 1,2,3)
A-weighted,
@ fs = 48kHz
91
98
dB
SNR (Terminology Note 1,2,3)
A-weighted
@ fs = 96kHz
98
dB
SNR (Terminology Note 1,2,3)
Non ‘A’ weighted @ fs
= 48kHz
95
dB
THD (Note 3)
1kHz, 0dBFs
-81
dB
Dynamic Range (Note 2)
1kHz, THD+N @
-60dBFs
91
98
dB
DAC Channel Separation
1kHz, 0dBFs
93
dB
Power Supply Rejection Ratio
PSRR
1kHz 100mVpp
46
dB


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