AD1838A Datasheet, PDF (2/24 Pages) Analog Devices – 2 ADC, 6 DAC, 96KHZ 24 BIT CODEC

AD1838A–SPECIFICATIONS
TEST CONDITIONS
Supply Voltages (AVDD, DVDD)
Ambient Temperature
Input Clock
DAC Input Signal
ADC Input Signal
Input Sample Rate (f_S)
Measurement Bandwidth
Word Width
Load Capacitance
Load Impedance
5.0 V
25°C
12.288 MHz (256 Ï« f_S Mode)
1.0078125 kHz, 0 dBFS (Full Scale)
1.0078125 kHz, –1 dBFS
48 kHz
20 Hz to 20 kHz
24 Bits
100 pF
47 kΩ
Performance of all channels is identical (except for the Interchannel Gain Mismatch and Interchannel Phase Deviation speci-
fications).
Parameter
Min
Typ
Max
Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No Filter
With A-Weighted Filter
Total Harmonic Distortion + Noise (THD + N)
48 kHz
96 kHz
Interchannel Isolation
Interchannel Gain Mismatch
Analog Inputs
Differential Input Range (± Full Scale)
Common-Mode Input Voltage
Input Impedance
Input Capacitance
V_REF
DC Accuracy
Gain Error
Gain Drift
100
–2.828
24
103
105
–95
–95
100
0.025
2.25
4
15
2.25
±5
35
–88.5
–87.5
+2.828
Bits
dB
dB
dB
dB
dB
dB
V
V
kΩ
pF
V
%
ppm/ºC
DIGITAL-TO-ANALOG CONVERTERS
DAC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dBFS Input)
No Filter
103
With A-Weighted Filter (48 kHz and 96 kHz)
105
Total Harmonic Distortion + Noise (48 kHz and 96 kHz)
Interchannel Isolation
DC Accuracy
Gain Error
Interchannel Gain Mismatch
Gain Drift
Interchannel Phase Deviation
Volume Control Step Size (1023 Linear Steps)
Volume Control Range (Maximum Attenuation)
Mute Attenuation
De-emphasis Gain Error
Full-Scale Output Voltage at Each Pin (Single-Ended)
Output Resistance at Each Pin
Common-Mode Output Voltage
24
105
108
–95
–90
110
± 4.0
0.025
200
± 0.1
0.098
60
–100
± 0.1
1.0 (2.8)
180
2.25
Bits
dB
dB
dB
dB
%
dB
ppm/°C
Degrees
%
dB
dB
dB
V rms (V p-p)
Ω
V
ADC DECIMATION FILTER, 48 kHz*
Pass Band
Pass-Band Ripple
Stop Band
Stop-Band Attenuation
Group Delay
21.77
kHz
± 0.01
dB
26.23
kHz
120
dB
910
µs
–2–
REV. A