參數(shù)資料
型號(hào): AD1981BLJST-REEL
廠商: ANALOG DEVICES INC
元件分類: 消費(fèi)家電
英文描述: AC 97 SoundMAX Codec
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: MS-026BBC, LQFP-48
文件頁(yè)數(shù): 3/32頁(yè)
文件大?。?/td> 326K
代理商: AD1981BLJST-REEL
AD1981BL
SPECIFICATIONS
TEST CONDITIONS
Standard test conditions, unless otherwise noted.
Table 1.
Parameter
Temperature
Digital Supply (DV
DD
)
Analog Supply (AV
DD
)
Sample Rate (f
S
)
Input Signal
Analog Output Pass Band
DAC
ADC
Rev. A | Page 3 of 32
Test Condition
25°C
3.3 V
3.3 V
48 kHz
1008 Hz
20 Hz to 20 kHz
Calibrated
3 dB Attenuation Relative to Full Scale
0 dB Input
10 k Output Load (LINE_OUT)
32 Output Load (HP_OUT)
Calibrated
0 dB Gain
Input 3.0 dB Relative to Full Scale
GENERAL SPECIFICATIONS
Table 2.
Parameter
ANALOG INPUT
Input Voltage (RMS Values Assume Sine Wave Input)
LINE_IN, AUX, CD, PHONE_IN
MIC_IN with 20 dB Gain
MIC_IN with 0 dB Gain
Input I
mpedanc
e
1
Input Capacitance
1
MASTER VOLUME
Step Size (0 dB to 46.5 dB): LINE_OUT_L, LINE_OUT_R
Output Attenuation Range
1
Step Size (0 dB to 46.5 dB): MONO_OUT
Output Attenuation Range
1
Step Size (0 dB to 46.5 dB): HP_OUT_R, HP_OUT_L
Output Attenuation Range Span
1
Mute Attenuation of 0 dB Fundamental
1
PROGRAMMABLE GAIN AMPLIFIER—ADC
Step Size (0 dB to 22.5 dB)
PGA Gain Range
ANALOG MIXER—INPUT GAIN/AMPLIFIERS/ATTENUATORS
Signal-to-Noise Ratio (SNR)
CD to LINE_OUT
Other to LINE_OUT
1
Min
80
Typ
0.707
2.0
0.0707
0.2
1.707
2.0
20
5
1.5
46.5
1.5
46.5
1.5
46.5
1.5
22.5
90
90
Max
7.5
Unit
V rms
V p-p
V rms
V p-p
V rms
V p-p
k
pF
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
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