Datasheet

Data Sheet AD1933
Rev. E | 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 high 2.0 V
Input voltage low 0.8 V
1
Functionally guaranteed at −40°C to +125°C case temperature.
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at an ambient temperature of 25°C.
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) 102 107 dB
With A-Weighted Filter (RMS) 105 110 dB
With A-Weighted Filter (Avg) 112 dB
Total Harmonic Distortion + Noise 0 dBFS
Differential Version Two channels running −96 dB
Eight channels running −86 −76 dB
Full-Scale Output Voltage 1.76 (4.96) V rms (V p-p)
Gain Error −10 +10 %
Interchannel Gain Mismatch −0.2 +0.2 dB
Offset Error −25 −6 +25 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
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
REGULATOR
Input Supply Voltage VSUPPLY pin 4.5 5.0 5.5 V
Regulated Supply Voltage VSENSE pin 3.19 3.37 3.55 V