AD1989B 데이터 시트보기 (PDF) - Analog Devices
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AD1989B Datasheet PDF : 20 Pages
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Parameter
DAC VOLUMES
Step Size (DAC0, DAC1, DAC2, DAC3)
Output Gain/Attenuation Range
Mute Attenuation of 0 dB Fundamental1
ADC VOLUMES
Step Size (ADCSEL-0, ADCSEL-1)
PGA Gain/Attenuation Range
Mute Attenuation of 0 dB Fundamental1
ANALOG MIXER
Signal-to-Noise Reduction (SNR) Input to Output
Step Size: All Mixer Inputs
Input Gain/Attenuation Range: All Mixer Inputs
ANALOG LINE LEVEL OUTPUTS
Full-Scale Output Voltage: Line-Out Drive Enabled
Output Impedance1
External Load Impedance1
Output Capacitance1
External Load Capacitance1
ANALOG HP DRIVE OUTPUTS
Full-Scale Output Voltage: Line-Out Drive Enabled
Ports A, B and D (when HP Drive is Enabled)
Output Impedance1
External Load Impedance1
Output Capacitance1
External Load Capacitance1
ANALOG INPUTS
Input Voltages—Ports A, B, C, or E
Mic Boost = 0 dB
Input Voltages—Microphone Boost
Amplifier, Ports B, C, or E
Mic Boost = +10 dB
Mic Boost = +20 dB
Mic Boost = +30 dB
Input Impedance
PCBEEP
Ports A, B, C, E (Mic Boost = 0 dB)
Input Capacitance1
MICROPHONE BIAS
MIC_BIAS-B, MIC_BIAS-C
MIC_BIAS_IN (Pin 33) = +5 V or +3.3 V
MIC_BIAS_IN (Pin 33) = +5 V
MIC_BIAS_IN (Pin 33) = +3.3 V
MIC_BIAS-E (When enabled as BIAS)
Output Drive Current
VREF Setting = High-Z
VREF Setting = 0 V
VREF Setting = 50%
VREF Setting = 80%
VREF Setting = 100%
VREF Setting = 80%
VREF Setting = 100%
VREF Setting = High-Z
VREF Setting = 0 V
VREF Setting = 50%
VREF Setting = 80%
VREF Setting = 100%
VREF Setting = 50%, 80%, or 100%
Min
–58.5
–58.5
–34.5
1.0
10
1.0
2.83
32
AD1989B
Typ
1.5
–80
1.5
–80
95
–1.5
190
15
15
1
2.83
0.316
0.894
0.1
0.283
0.032
0.089
23
150
5
Max
0
+22.5
+12.0
1000
0.5
1000
7.5
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
V rms3
Ω
kΩ
pF
pF
V rms3
V p-p
Ω
Ω
pF
pF
V rms3
V p-p
V rms3
V p-p
V rms3
V p-p
V rms3
V p-p
kΩ
kΩ
pF
High-Z
0
V dc
1.65
V dc
3.7
V dc
3.9
V dc
2.86
V dc
3.0
V dc
High-Z
0
V dc
1.65
V dc
2.86
V dc
3.0
V dc
1.6
mA
Rev. 0 | Page 5 of 20 | August 2008
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