ADAV400

Rev. A | Page 4 of 36

SPECIFICATIONS

AVDDn1 = 3.3 V, ODVDD = 3.3 V, DVDD = internal voltage regulator, temperature = 0°C to 70°C, master clock = 12.288 MHz,

measurement bandwidth = 20 Hz to 20 kHz, ADC input signal = 1 kHz, DAC output signal = 1 kHz, unless otherwise noted.

Table 1.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

REFERENCE SECTION

1.5

V

130

ppm/°C

ANALOG INPUTS (SINGLE ENDED)

Number of Channels

8

Four stereo input channels

Full-Scale Analog Input

100

μA rms

2 V rms input with 20 kΩ series resistor

DC Offset

±10

mV

ADC SECTION

Stereo ADC

Resolution

24

Bits

Dynamic Range

A-Weighted

90

95

dB

−60 dB with respect to full-scale analog input

Total Harmonic Distortion + Noise

−90

dB

−3 dB with respect to full-scale analog input

Interchannel Gain Mismatch

0.1

dB

Left and right channel gain mismatch

Crosstalk

−78

dB

Analog channel crosstalk (AINYm2 to AINYm2)

One channel = −3 dB, other channel = 0 V

Gain Error

−6

%

Power Supply Rejection

−83

dB

1 kHz, 300 mV p-p signal at AVDDn1

ADC DIGITAL DECIMATOR FILTER

CHARACTERISTICS @ 48 kHz3

Pass Band

22.5

kHz

Pass-Band Ripple

±0.0002

dB

Transition Band

24

kHz

Stop Band

26.5

kHz

Stop-Band Attenuation

100

dB

Group Delay

1040

μs

DAC OUTPUTS (SINGLE-ENDED)

DAC amplifier register contents = 0x0010

Number of Channels

8

Four stereo output channels

Resolution

24

Bits

Full-Scale Analog Output

1

V rms

Dynamic Range

A-Weighted

90

95

dB

−60 dB with respect to full-scale code input

Total Harmonic Distortion + Noise4

−93

dB

−3 dB with respect to full-scale code input

Crosstalk

−100

dB

Analog channel crosstalk (VOUTm2 to VOUTm2)

One channel = −3 dB, other channels = 0 V

Gain Error

5

%

Interchannel Gain Mismatch

0.1

dB

Left and right channel gain mismatch

DC Offset

1

mV

Power Supply Rejection

−87

dB

1 kHz, 300 mV p-p signal at AVDDn1

DAC DIGITAL INTERPOLATION FILTER

CHARACTERISTICS @ 48 kHz3

Pass Band

21.769

kHz

Pass-Band Ripple

±0.01

dB

Transition Band

23.95

kHz

Stop Band

26.122

kHz

Stop-Band Attenuation

75

dB

Group Delay

580

μs