ALC202 Просмотр технического описания (PDF) - Realtek Semiconductor
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ALC202 Datasheet PDF : 42 Pages
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ALC202/ALC202A
8. Analog Performance Characteristics
Standard test conditions: Tambient=250C, Dvdd=3.3V ±5%,Avdd=5.0V±5%
1KHz input sine wave; Sampling frequency=48KHz; 0dB=1Vrms
10KΩ/50pF load; Test bench Characterization BW: 10Hz~22KHz
0dB attenuation; tone and 3D disabled
Parameter
Minimum
Typical
Maximum
Full scale input voltage: Line inputs (Mixers)
-
1.6
-
Line inputs (A/D)
-
1.2
-
Mic input (0 dB)
-
1.6
-
Mic input (20 dB boost)
-
0.16
-
Full scale output voltage
LINE-OUT (ALC202 / ALC202A)
HP-OUT (ALC202 / ALC202A)
-
1.1 / 1.5
-
-
1.5 / 1.1
-
Analog to Analog S/N: CD to LINE-OUT
-
95
-
Other to LINE-OUT
-
95
-
Analog frequency response
16
-
22,000
S/N (A-weighted):
D/A
A/D
-
90
-
-
85
-
Total Harmonic Distortion (A-weighted): D/A
-
-80
-
A/D
-
-78
-
D/A & A/D frequency response
20
-
19,200
Transition Band
19,200
-
28,800
Stop Band
28,800
-
∞
Stop Band Rejection
-75
-
-
Out-of-Band Rejection
-
-65
-
Group delay
-
-
1
Power Supply Rejection
-
-65
-
MIC Amplifier 20dB Gain
18
20
22
Master Volume (LINE- / HP-OUT): 64 step
Step Size
Attenuation Control Range
-
1.5
-
0
-
-94.5
Master Volume (MONO-OUT): 32 step
Step Size
Attenuation Control Range
-
1.5
-
0
-
-46.5
PC Beep Volume 16 steps:
Step Size
Attenuation Control Range
-
3.0
-
0
-
-45
Analog Mixer Volume 32 steps:
Step Size
Gain Control Range
-
1.5
-
-34.5
-
+12
Record Gain 16 steps:
Step Size
Gain Control Range
-
1.5
-
0
-
+22.5
DC Volume Control: 32 step
Gain Control Range
0
-43
0 dB DC voltage
0.1
Mute DC voltage
4.7
Input impedance (gain = 0dB, mixer = off)
LINE-IN, CD-IN, AUX-IN, VIDEO-IN
MIC1 / MIC2
PCBEEP, PHONE
64
64 / 16
16
cont…
Units
Vrms
Vrms
Vrms
dB
Hz
dB
dB
Hz
Hz
Hz
dB
dB
ms
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
KΩ
KΩ
KΩ
2002/07/30
30
Rev.1.28
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