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WM9709 数据表(PDF) 4 Page - Wolfson Microelectronics plc

部件名 WM9709
功能描述  AC LINK INTERFACE AUDIO DAC
PDF  18 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM9709 数据表(HTML) 4 Page - Wolfson Microelectronics plc

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WM9709
Production Data
w
PD Rev 1.3 February 2003
4
DC ELECTRICAL CHARACTERISTICS
Test Conditions:
AVDD = 5V, AGND = 0V, DVDD = 3.3V, DGND = 0V, TA = 25
oC, unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Supply Ranges
Digital supply range
DVDD
-10%
3.3
+10%
V
Analogue supply range
AVDD
-10%
3.3 to 5.0
+10%
V
Digital ground
DGND
0
V
Analogue ground
AGND
0
V
Difference DGND to AGND
-0.3
0
+0.3
V
Supply Currents
Analogue supply current
DVDD=3.3V,
AVDD = 5V
12.5
20
mA
Analogue supply current
DVDD, AVDD = 3.3V
11
mA
Digital supply current
DVDD, AVDD = 3.3V
5
8
mA
Digital Logic Levels (DVDD = 3.3)
Input LOW level
VIL
DGND - 0.3
0.25
∗ DVDD
V
Input HIGH level
VIH
0.75
∗ DVDD
DVDD + 0.3
V
Output LOW
VOL
ILOAD = 1mA
0.1
∗ DVDD
V
Output HIGH
VOH
ILOAD = 1mA
0.9
∗ DVDD
V
AC ELECTRICAL CHARACTERISTICS
Test Conditions:
AVDD = 5V, AGND = 0V, DVDD = 3.3V, DGND = 0V, TA = 25
oC, unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Reference Levels
Reference input/output
CAP
AVDD/2 –
25mV
AVDD/2
AVDD/2 +
25mV
CAP impedance
5
k
Ω
DAC Circuit Specifications (48kHz Sample Rate)
AVDD = 5V
95
102
dB
SNR A-weighted (Note 1,2)
AVDD = 3.3V
99
dB
DNR
AVDD = 5V
95
102
dB
Dynamic Range
AVDD = 3.3V
99
dB
AVDD=5V
0.95
1.0
1.05
Vrms
Full scale output voltage into
10k
Ω load
AVDD=3.3V
0.66
Vrms
THD
0dBfs
-95
-85
dB
Channel Separation
95
102
dB
Channel Matching
-0.35
0
0.35
dB
PSRR
1kHz, 10
µF on CAP pin
46
dB
Output offset wrt CAP voltage
-30
0
30
mV
Clock Frequency Range
Crystal clock
24.576
MHz
BITCLK frequency
12.288
MHz
SYNC frequency
48.0
kHz



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