AD1983 데이터 시트보기 (PDF) - Analog Devices

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AD1983

HD Audio SoundMAX® Codec

Analog Devices 

AD1983

SPECIFICATIONS

TEST CONDITIONS

Test conditions for the AD1983 are as follows, unless otherwise noted.

General Test Conditions

Temperature at 25°C

Digital supply (DVDD) at 3.3 V ± 10%

Analog supply (AVDD) at 5.0 V ± 10%

Sample rate (FS) at 48 kHz

Input signal at 1.0 kHz

Analog output pass band at 20 Hz to 20,000 Hz

VIH at 2.0 V

VIL at 0.8 V

VIH at 2.4 V

VIL at 0.6 V

DAC Test Conditions

Calibrated

Output −3 dB relative to full scale

10 kΩ output load, Port D, and MONO_OUT

32 Ω output load, Port A

ADC Test Conditions

Calibrated

0 dB PGA gain

Input −3.0 dB relative to full scale

Table 1.

Parameter

ANALOG INPUT

Port-B, Port-C

Conditions

0 dB

Port-B, Port-C

10 dB

Port-B, Port-C

20 dB

Port-B, Port-C

30 dB

Input Impedance2

Input Capacitance2

MASTER VOLUME

Step Size

Output Gain Range

Mute Attenuation of 0 dB Fundamental

PROGRAMMABLE GAIN AMPLIFIER—

ADC

Step Size

PGA Gain Range

ANALOG MIXER—INPUT

GAIN/AMPLIFIERS/ATTENUATORS

Signal-to-Noise Ratio (SNR)

Line In to Line Out

Microphone In to Line Out2

Step Size

Step Size: Digital PC Beep

Input Gain Range

Digital PC Beep

DIGITAL DECIMATION AND

INTERPOLATION FILTERS2

Pass Band

Pass-Band Ripple

Transition Band

Stop Band

Stop-Band Rejection

Port-A, Port-D, MONO_OUT

All mixer inputs except digital PC BEEP

All mixer inputs except digital PC BEEP

Min

–46.5

80

0.0

Typ

1

2.83

0.316

0.894

0.1

0.283

0.032

0.089

20

5

1.5

1.5

Max Unit

V rms1

V p-p

V rms

V p-p

V rms

V p-p

V rms

V p-p

kΩ

7.5

pF

dB

+3

dB

dB

dB

22.5 dB

85

80

1.5

3.0

−34.5

−45.0

0

0.4 × FS

0.6 × FS

−74

dB

dB

dB

dB

+12.0 dB

0.0

dB

0.4 × FS Hz

±0.09 dB

0.6 × FS Hz

∞

Hz

dB

Rev. 0 | Page 3 of 16

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