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AD1838 Arkusz danych(PDF) 2 Page - Analog Devices

Numer części AD1838
Szczegółowy opis  2 ADC, 6 DAC,96 kHz, 24-Bit Codec
Download  24 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
Logo AD - Analog Devices

AD1838 Arkusz danych(HTML) 2 Page - Analog Devices

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REV. 0
–2–
AD1838–SPECIFICATIONS
TEST CONDITIONS
Supply Voltages (AVDD, DVDD) . . . . . . . . . . . . . . . . . . . . . . . 5.0 V
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
°C
Input Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.288 MHz (256
fS Mode)
DAC Input Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0078125 kHz, 0 dBFS (Full Scale)
ADC Input Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0078125 kHz, –1 dBFS
Input Sample Rate (fS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 kHz
Measurement Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hz to 20 kHz
Word Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Bits
Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 pF
Load Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 k
Performance of all channels is identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation
specifications).
Parameter
Min
Typ
Max
Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
24
Bits
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No Filter
100
103
dB
A-Weighted
101
105
dB
Total Harmonic Distortion + Noise (THD + N)
–95
–88.5
dB
Interchannel Isolation
100
dB
Interchannel Gain Mismatch
0.025
dB
Analog Inputs
Differential Input Range (
± Full Scale)
–2.828
+2.828
V
Common-Mode Input Volts
2.25
V
Input Impedance
4
k
Input Capacitance
15
pF
VREF
2.25
V
DC Accuracy
Gain Error
±5%
Gain Drift
35
ppm/ºC
DIGITAL-TO-ANALOG CONVERTERS
DAC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dBFS Input)
No Filter
103
105
dB
With A-Weighted Filter
105
108
dB
Total Harmonic Distortion + Noise
–95
–90
dB
Interchannel Isolation
110
dB
DC Accuracy
Gain Error
±4.0
%
Interchannel Gain Mismatch
0.025
dB
Gain Drift
200
ppm/
°C
Interchannel Phase Deviation
±0.1
Degrees
Volume Control Step Size (1023 Linear Steps)
0.098
%
Volume Control Range (Max Attenuation)
60
dB
Mute Attenuation
–100
dB
De-Emphasis Gain Error
±0.1
dB
Full-Scale Output Voltage at Each Pin (Single-Ended)
1.0 (2.8)
Vrms (V p-p)
Output Resistance at Each Pin
180
Common-Mode Output Volts
2.25
V
ADC DECIMATION FILTER, 48 kHz
*
Pass Band
20
kHz
Pass-Band Ripple
±0.01
dB
Stop Band
24
kHz
Stop-Band Attenuation
120
dB
Group Delay
910
µs


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