ALC250 데이터 시트보기 (PDF) - Unspecified
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ALC250 Datasheet PDF : 46 Pages
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5.3 Filter/Reference/NC
Name
VREF
VREFOUT
AFILT1
AFILT2
NC
DC VOL
VREFOUT2
VREFOUT3
VAUX
NC
NC
Type
-
O
-
-
-
I
O
O
I
-
-
Pin No
27
28
29
30
31
32
33
37
34
40
45
Description
Reference voltage
Ref. voltage out
ADC anti-aliasing filter
ADC anti-aliasing filter
Not Connection
DC Voltage Volume
Control
Secondary Ref. voltage out
Third Ref. voltage out
Auxiliary Power to keep CD
and amplifier turned on.
Not Connection
Not Connection
ALC250 Data Sheet
Characteristic Definition
1uf capacitor to analog ground
Analog DC voltage output (2.5V / 4.0V)
1000pf capacitor to analog ground.
1000pf capacitor to analog ground.
Analog Input (AGND~AVDD)
Analog DC voltage output (2.5V / 4.0V)
Analog DC voltage output (2.5V / 4.0V)
+5V analog stand-by power
Total: 11 Pins
5.4 Power/Ground
Name
AVDD1
AVDD2
AVSS1
AVSS2
DVDD1
DVDD2
DVSS1
DVSS2
Type
I
I
I
I
I
I
I
I
Pin No
25
38
26
42
1
9
4
7
Description
Analog VDD (5.0V or 3.3V)
Analog VDD (5.0V or 3.3V)
Analog GND
Analog GND
Digital VDD (3.3V)
Digital VDD (3.3V)
Digital GND
Digital GND
Characteristic Definition
Total: 8 Pins
Two Channel AC’97 2.3 Audio Codec
6
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