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AD1981B Folha de dados(PDF) 2 Page - Analog Devices

Nome de Peças AD1981B
Descrição Electrónicos  AC ??7 SoundMAX Codec
Download  28 Pages
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD1981B Folha de dados(HTML) 2 Page - Analog Devices

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REV. B
–2–
AD1981B–SPECIFICATIONS
STANDARD TEST CONDITIONS, UNLESS
OTHERWISE NOTED
Temperature
25
°C
Digital Supply (DVDD)
3.3 V
Analog Supply (AVDD)
5.0 V
Sample Rate (FS)
48 kHz
Input Signal
1008 Hz
Analog Output Pass Band
20 Hz to 20 kHz
DAC Test Conditions
Calibrated
–3 dB Attenuation Relative to Full Scale
0 dB Input
10 k
Ω Output Load (LINE_OUT)
32
Ω Output Load (HP_OUT)
ADC Test Conditions
Calibrated
0 dB Gain
Input –3.0 dB Relative to Full Scale
Parameter
Min
Typ
Max
Unit
ANALOG INPUT
Input Voltage (RMS Values Assume Sine Wave Input)
LINE_IN, AUX, CD, PHONE_IN
1
V rms
2.83
V p-p
MIC_IN with +20 dB Gain
0.1
V rms
0.283
V p-p
MIC_IN with 0 dB Gain
1
V rms
2.83
V p-p
Input Impedance
1
20
k
Input Capacitance
1
5
7.5
pF
MASTER VOLUME
Step Size (0 dB to –46.5 dB): LINE_OUT_L, LINE_OUT_R
1.5
dB
Output Attenuation Range
1
46.5
dB
Step Size (0 dB to –46.5 dB): MONO_OUT
1.5
dB
Output Attenuation Range
1
46.5
dB
Step Size (0 dB to –46.5 dB): HP_OUT_R, HP_OUT_L
1.5
dB
Output Attenuation Range Span
1
46.5
dB
Mute Attenuation of 0 dB Fundamental
1
80
dB
PROGRAMMABLE GAIN AMPLIFIER—ADC
Step Size (0 dB to 22.5 dB)
1.5
dB
PGA Gain Range
22.5
dB
ANALOG MIXER—INPUT GAIN/AMPLIFIERS/ATTENUATORS
Signal-to-Noise Ratio (SNR)
CD to LINE_OUT
90
dB
Other to LINE_OUT
1
90
dB
Step Size (+12 dB to –34.5 dB) (All Steps Tested):
MIC_IN, LINE_IN, CD, AUX, PHONE_IN, DAC
1.5
dB
Input Gain/Attenuation Range:
MIC_IN, LINE_IN, CD, AUX, PHONE_IN, DAC
46.5
dB
DIGITAL DECIMATION AND INTERPOLATION FILTERS
1
Pass Band
0
0.4
fS
Hz
Pass-Band Ripple
±0.09
dB
Transition Band
0.4
fS
0.6
fS
Hz
Stop Band
0.6
fS
Hz
Stop-Band Rejection
–74
dB
Group Delay
16/fS
sec
Group Delay Variation over Pass Band
0
µs


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