Data Sheet AD1934
Rev. D | Page 3 of 28
SPECIFICATIONS
TEST CONDITIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
Supply Voltages (AVDD, DVDD) 3.3 V
Temperature Range
1
As specified in Table 1 and Table 2
Master Clock 12.288 MHz (48 kHz f
S
, 256 × f
S
mode)
Input Sample Rate 48 kHz
Measurement Bandwidth 20 Hz to 20 kHz
Word Width 24 bits
Load Capacitance (Digital Output) 20 pF
Load Current (Digital Output) ±1 mA or 1.5 kΩ to ½ DVDD supply
Input Voltage HI 2.0 V
Input Voltage LO 0.8 V
1
Functionally guaranteed at −40°C to +125°C case temperature.
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at 25°C (ambient).
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
DIGITAL-TO-ANALOG CONVERTERS
Dynamic Range 20 Hz to 20 kHz, −60 dB input
No Filter (RMS) 98 104 dB
With A-Weighted Filter (RMS) 100 106 dB
With A-Weighted Filter (Average) 108 dB
Total Harmonic Distortion + Noise
Single-Ended Version Two channels running −92 dB
Eight channels running −86 −75 dB
Full-Scale Output Voltage 0.88 (2.48) V rms (V p-p)
Gain Error −10 +10 %
Interchannel Gain Mismatch
Offset Error −16 −4 +16 mV
Gain Drift −30 +30 ppm/°C
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
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
