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AD1989B Datasheet(PDF) 5 Page - Analog Devices

Part No. AD1989B
Description  High Definition Audio SoundMAX Codec
Download  20 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD1989B Datasheet(HTML) 5 Page - Analog Devices

 
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AD1989B
Rev. 0
|
Page 5 of 20
|
August 2008
DAC VOLUMES
Step Size (DAC0, DAC1, DAC2, DAC3)
1.5
dB
Output Gain/Attenuation Range
–58.5
0
dB
Mute Attenuation of 0 dB Fundamental1
–80
dB
ADC VOLUMES
Step Size (ADCSEL-0, ADCSEL-1)
1.5
dB
PGA Gain/Attenuation Range
–58.5
+22.5
dB
Mute Attenuation of 0 dB Fundamental1
–80
dB
ANALOG MIXER
Signal-to-Noise Reduction (SNR) Input to Output
95
dB
Step Size: All Mixer Inputs
–1.5
dB
Input Gain/Attenuation Range: All Mixer Inputs
–34.5
+12.0
dB
ANALOG LINE LEVEL OUTPUTS
Full-Scale Output Voltage: Line-Out Drive Enabled
1.0
V rms3
Output Impedance1
190
Ω
External Load Impedance1
10
k
Ω
Output Capacitance
1
15
pF
External Load Capacitance
1
1000
pF
ANALOG HP DRIVE OUTPUTS
Full-Scale Output Voltage: Line-Out Drive Enabled
1.0
V rms3
Ports A, B and D (when HP Drive is Enabled)
2.83
V p-p
Output Impedance1
0.5
Ω
External Load Impedance
1
32
Ω
Output Capacitance
1
15
pF
External Load Capacitance
1
1000
pF
ANALOG INPUTS
Input Voltages—Ports A, B, C, or E
Mic Boost = 0 dB
1
2.83
V rms3
V p-p
Input Voltages—Microphone Boost
Amplifier, Ports B, C, or E
Mic Boost = +10 dB
0.316
0.894
V rms3
V p-p
Mic Boost = +20 dB
0.1
0.283
V rms
3
V p-p
Mic Boost = +30 dB
0.032
0.089
V rms3
V p-p
Input Impedance
PCBEEP
Ports A, B, C, E (Mic Boost = 0 dB)
23
150
k
Ω
k
Ω
Input Capacitance1
57.5
pF
MICROPHONE BIAS
MIC_BIAS-B, MIC_BIAS-C
MIC_BIAS_IN (Pin 33) = +5 V or +3.3 V
VREF Setting = High-Z
High-Z
VREF Setting = 0 V
0
V dc
VREF Setting = 50%
1.65
V dc
MIC_BIAS_IN (Pin 33) = +5 V
VREF Setting = 80%
3.7
V dc
VREF Setting = 100%
3.9
V dc
MIC_BIAS_IN (Pin 33) = +3.3 V
VREF Setting = 80%
2.86
V dc
VREF Setting = 100%
3.0
V dc
MIC_BIAS-E (When enabled as BIAS)
VREF Setting = High-Z
High-Z
VREF Setting = 0 V
0
V dc
VREF Setting = 50%
1.65
V dc
VREF Setting = 80%
2.86
V dc
VREF Setting = 100%
3.0
V dc
Output Drive Current
VREF Setting = 50%, 80%, or 100%
1.6
mA
Parameter
Min
Typ
Max
Unit


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