Rev. 0

|

Page 4 of 16

|

July 2007

AD1882

AD1882 SPECIFICATIONS

TEST CONDITIONS

PERFORMANCE

GENERAL SPECIFICATIONS

Parameter

Test Condition

Temperature

Digital Supply

Analog Supply

MIC_BIAS_IN (via Low-Pass Filter)

Input Signal (Frequency Sine Wave)

Amplitude for THD + N

Analog Output Pass Band

25°C

3.3 V

3.3 V

5.0 V

48 kHz

1008 Hz

–3.0 dB Full Scale

20 Hz to 20 kHz

DAC

10 k

Ω Output Load: Line Out Tests

32

Ω Output Load: Headphone Tests

ADC

0 dB Gain

Parameter

Min

Typ

Max

Unit

Line Out Drive (10 k

Ω Loads—DAC to Pin)

Total Harmonic Distortion (THD + N)

Signal-to-Noise Ratio

–85

95

95

dB

dB

dB

Headphone Drive (32

Ω Loads—DAC to Pin)

Total Harmonic Distortion (THD + N)

Signal-to-Noise Ratio

–83

95

95

dB

dB

dB

Input Ports (Pin to ADC, Mic Boost = 0 dB)

Total Harmonic Distortion (THD + N)

Signal-to-Noise Ratio

–81

90

90

dB

dB

dB

Table 4. AD1882 General Specifications

Parameter

Min

Typ

Max

Unit

DIGITAL DECIMATION AND INTERPOLATION FILTERS

1

0

0.4 f

S

Hz

±0.005

dB

Hz

dB

+20

–100

Group Delay Variation Over Pass Band

0

μs

ANALOG TO DIGITAL CONVERTERS

Resolution

24

Bits

±10

%

Interchannel Gain Mismatch (Difference of Gain Errors)

±0.5

dB

ADC Offset Error1

±5mV

ADC Crosstalk

1

Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L)

–85

dB

Line_In to Other

–100

–80

dB