AD1928
Parameter
Conditions
Min Typ
Max Unit
Interchannel Isolation
100
dB
Interchannel Phase Deviation
0
Degrees
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
Specifications measured at a case temperature of 125°C.
Table 2.
Parameter
E ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
Dynamic Range
T No Filter (RMS)
With A-Weighted Filter (RMS)
Total Harmonic Distortion + Noise
Full-Scale Input Voltage (Differential)
E Gain Error
Interchannel Gain Mismatch
Offset Error
L DIGITAL-TO-ANALOG CONVERTERS
Dynamic Range
No Filter (RMS)
With A-Weighted Filter (RMS)
O With A-Weighted Filter (Average)
Total Harmonic Distortion + Noise
Single-Ended Version
S Full-Scale Output Voltage
Gain Error
Interchannel Gain Mismatch
Offset Error
B Gain Drift
REFERENCE
Internal Reference Voltage
O External Reference Voltage
Conditions
All ADCs
20 Hz to 20 kHz, −60 dB input
−1 dBFS
20 Hz to 20 kHz, −60 dB input
0 dBFS
Two channels running
Eight channels running
FILTR pin
FILTR pin
Min Typ
24
95
102
97
105
−96
1.9
−10
−0.25
−10 0
Max Unit
Bits
−87
+10
+0.25
+10
dB
dB
dB
V rms
%
dB
mV
98
104
dB
100
106
dB
108
dB
−92
dB
−86
−70 dB
0.8775 (2.482)
V rms (V p-p)
−10
+10 %
−0.2
+0.2 dB
−25 −4
+25 mV
−30
+30 ppm/°C
1.50
1.32 1.50
V
1.68 V
Common-Mode Reference Output
CM pin
1.50
V
Rev. B | Page 4 of 32