參數(shù)資料
型號: AD1886
廠商: Analog Devices, Inc.
元件分類: Codec
英文描述: AC’97 SoundMAX Codec
中文描述: AC\u0026#39;97聲卡SoundMAX編解碼器
文件頁數(shù): 2/28頁
文件大小: 281K
代理商: AD1886
REV. 0
–2–
AD1886A–SPECIFICATIONS
ANALOG INPUT
Parameter
Min
Typ
Max
Unit
Input Voltage (RMS Values Assume Sine Wave Input)
LINE_IN, AUX, CD, VIDEO, PHONE_IN, PC_BEEP
1
2.83
0.1
0.283
1
2.83
20
5
V rms
V p-p
V rms
V p-p
V rms
V p-p
k
pF
MIC1 or MIC2 with +20 dB Gain (M20 = 1)
MIC1 or MIC2 with 0 dB Gain (M20 = 0)
Input Impedance
*
Input Capacitance
*
7.5
MASTER VOLUME
Parameter
Min
Typ
Max
Unit
Step Size (0 dB to –94.5 dB); LINE_OUT_L, LINE_OUT_R
Output Attenuation Range Span
*
Step Size (0 dB to –46.5 dB); MONO_OUT
Output Attenuation Range Span
*
Step Size (+6 dB to –88.5 dB); HP_OUT_R, HP_OUT_L
Output Attenuation Range Span
*
Mute Attenuation of 0 dB Fundamental
*
1.5
–94.5
1.5
–46.5
1.5
–94.5
dB
dB
dB
dB
dB
dB
dB
80
PROGRAMMABLE GAIN AMPLIFIER—ADC
Parameter
Min
Typ
Max
Unit
Step Size (0 dB to 22.5 dB)
PGA Gain Range Span
1.5
22.5
dB
dB
ANALOG MIXER—INPUT GAIN / AMPLIFIERS / ATTENUATORS
Parameter
Min
Typ
Max
Unit
Signal-to-Noise Ratio (SNR)
CD to LINE_OUT
Other to LINE_OUT
Step Size (+12 dB to –34.5 dB): (All Steps Tested)
MIC, LINE_IN, AUX, CD, VIDEO, PHONE_IN, DAC
Input Gain/Attenuation Range:
MIC, LINE, AUX, CD, VIDEO, PHONE_IN, DAC
Step Size (0 dB to –45 dB): (All Steps Tested)
PC_BEEP
Input Gain/Attenuation Range: PC_BEEP
90
90
dB
dB
1.5
dB
–46.5
dB
3.0
–45
dB
dB
*
Guaranteed but not tested.
STANDARD TEST CONDITIONS UNLESS OTHERWISE NOTED
Temperature
Digital Supply (V
DD
)
Analog Supply (V
CC
)
Sample Rate (f
S
)
Input Signal
Analog Output Pass Band
V
IH
V
IL
V
IH
(CS0, CS1, CHAIN_IN)
V
IL
25
°
C
3.3 V
5.0 V
48 kHz
1008 Hz
20 Hz to 20 kHz
2.0 V
0.8 V
4.0 V
1.0 V
DAC Test Conditions
Calibrated
–3 dB Attenuation Relative to Full Scale
Input 0 dB
10 k
Output Load (LINE_OUT)
32
Output Load (HP_OUT)
ADC Test Conditions
Calibrated
0 dB Gain
Input –3.0 dB Relative to Full Scale
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