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 range1

As specified in Table 1 and Table 2

Master clock

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