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REV. B
–2–
AD1837–SPECIFICATIONS
TEST CONDITIONS
Supply Voltages (AV
DD
, DV
DD
) 5.0 V
Ambient Temperature
Input Clock
ADC Input Signal
DAC Input Signal
Input Sample Rate (f
S
)
Measurement Bandwidth
Word Width
Load Capacitance
Load Impedance
25
∞
C
12.288 MHz, (256
￥
f
S
Mode)
1.0078125 kHz, –1 dBFS (Full Scale)
1.0078125 kHz, 0 dBFS (Full Scale)
48 kHz
20 Hz to 20 kHz
24 Bits
100 pF
47 k
W
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
Dynamic Range (20 Hz to 20 kHz, –60 dB Input)
No Filter
A-Weighted
Total Harmonic Distortion + Noise (THD+N)
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
24
Bits
103
105
–95
100
0.025
dB
dB
dB
dB
dB
100
–88.5
–2.828
+2.828
V
V
k
W
pF
V
2.25
4
15
2.25
±
5
35
%
ppm/oC
DIGITAL-TO-ANALOG CONVERTERS
DAC Resolution
Dynamic Range (20 Hz to 20 kHz, –60 dBFS Input)
No Filter
With A-Weighted Filter
Total Harmonic Distortion + Noise
Interchannel Isolation
DC Accuracy
Gain Error
Interchannel Gain Mismatch
Gain Drift
Interchannel Phase Deviation
Volume Control Step Size (1023 Linear Steps)
Volume Control Range (Max 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
103
105
105
108
–92
100
dB
dB
dB
dB
±
4
0.025
200
±
0.1
0.098
60
–100
±
0.1
1.0 (2.8)
180
2.25
%
dB
ppm/
∞
C
Degrees
%
dB
dB
dB
V rms (V p-p)
W
V
ADC DECIMATION FILTER, 48 kHz
*
Pass Band
Pass-Band Ripple
Stop Band
Stop-Band Attenuation
Group Delay
21.77
±
0.01
26.23
120
910
kHz
dB
kHz
dB
m
s
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