AD1848 datasheet(3/28 Pages) AD

Part #	AD1848

Description	Parallel-Port 16-Bit SoundPort Stereo Codec

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Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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DIGITAL DECIMATION AND INTERPOLATION FILTERS*

Min

Max

Units

Passband

0

0.45

FS

Hz

Passband Ripple

±0.1

dB

Transition Band

0.45

FS

0.55

FS

Hz

Stopband

0.55

FS

∞

Hz

Stopband Rejection

74

dB

Group Delay

30/FS

Group Delay Variation Over Passband

0.0

µs

ANALOG-TO-DIGITAL CONVERTERS

Min

Typ

Max

Units

Resolution (No Missing Codes from

16

Bits

±10 LSB Ramp Around Midscale)*

Dynamic Range (–60 dB Input,

80

86

dB

THD+N Referenced to Full Scale)

THD+N (Referenced to Full Scale)

0.022

%

–77

–73

dB

Signal-to-Intermodulation Distortion*

90

dB

ADC Crosstalk*

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

–80

dB

Input R, Ground L, Read L)

Line to MIC (Input LINE, Ground and

–80

dB

Select MIC, Read Both Channels)

Line to AUX1

–80

dB

Line to AUX2

–80

dB

Gain Error (Full-Scale Span Relative to Nominal)

±5%

Interchannel Gain Mismatch

±0.5

dB

(Difference of Gain Errors)

ADC Offset Error

50

LSBs

DIGITAL-TO-ANALOG CONVERTERS

Min

Typ

Max

Units

Resolution*

16

Bits

Dynamic Range (–60 dB Input,

80

87

dB

THD+N Referenced to Full Scale)

THD+N (Referenced to Full Scale)

0.02

%

–76

–74

dB

Signal-to-Intermodulation Distortion*

90

dB

Gain Error (Full-Scale Span Relative to Nominal)

±5%

Interchannel Gain Mismatch

±0.5

dB

(Difference of Gain Errors)

DAC Crosstalk* (Input L, Zero R, Measure

–80

dB

R_OUT; Input R, Zero L, Measure L_OUT)

Total Out-of-Band Energy*

–45

dB

(Measured from 0.55

× F

S to 100 kHz)

Audible Out-of-Band Energy*

–70

dB

(Measured from 0.55

× F

S to 22 kHz,

All Selectable Sampling Frequencies)

*Guaranteed Not Tested.

Specifications subject to change without notice.

AD1848K

REV. 0

–3–

Similar Part No. - AD1848

Manufacturer	Part #	Datasheet	Description
Analog Devices	AD1848K	242Kb / 28P	Parallel-Port 16-Bit SoundPort Stereo Codec REV. 0

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