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AD1939 Datasheet(PDF) 4 Page - Analog Devices

Part No. AD1939
Description  4 ADC/8 DAC with PLL, 192 kHz, 24-Bit CODEC
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD1939
Rev. 0 | Page 4 of 32
Parameter
Conditions/Comments
Min
Typ
Max
Unit
Volume Control Step
0.375
dB
Volume Control Range
95
dB
De-emphasis Gain Error
±0.6
dB
Output Resistance at Each Pin
100
Ω
REFERENCE
Internal Reference Voltage
FILTR pin
1.50
V
External Reference Voltage
FILTR pin
1.32
1.50
1.68
V
Common-Mode Reference Output
CM pin
1.50
V
REGULATOR
Input Supply Voltage
VSUPPLY pin
4.5
5
5.5
V
Regulated Output Voltage
VSENSE pin
3.19
3.37
3.55
V
Specifications measured at 130°C (case).
Table 2.
Parameter
Conditions/Comments
Min
Typ
Max
Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
All ADCs
24
Bits
Dynamic Range
20 Hz to 20 kHz, −60 dB input
No Filter (RMS)
93
102
dB
With A-Weighted Filter (RMS)
96
104
dB
Total Harmonic Distortion + Noise
−1 dBFS
−96
−87
dB
Gain Error
−10
+10
%
Interchannel Gain Mismatch
−0.25
+0.25
dB
Offset Error
−10
0
+10
mV
DIGITAL-TO-ANALOG CONVERTERS
Dynamic Range
20 Hz to 20 kHz, −60 dB input
No Filter (RMS)
101
107
dB
With A-Weighted Filter (RMS)
104
110
dB
With A-Weighted Filter (Average)
112
dB
Total Harmonic Distortion + Noise
0 dBFS
Two channels running
−94
dB
Eight channels running
−86
−70
dB
Full-Scale Output Voltage
1.76 (4.96)
V rms (V p-p)
Gain Error
−10
+10
%
Interchannel Gain Mismatch
−0.2
+0.2
dB
Offset Error
−25
−6
+25
mV
Gain Drift
−30
+30
ppm/°C
REFERENCE
Internal Reference Voltage
FILTR pin
1.50
V
External Reference Voltage
FILTR pin
1.32
1.50
1.68
V
Common-Mode Reference Output
CM pin
1.50
V
REGULATOR
Input Supply Voltage
VSUPPLY pin
4.5
5
5.5
V
Regulated Output Voltage
VSENSE pin
3.2
3.43
3.65
V
CRYSTAL OSCILLATOR SPECIFICATIONS
Table 3.
Parameter
Min
Typ
Max
Unit
Transconductance
3.5
mmhos




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