WM8983 参数 Datasheet PDF下载

WM8983

Production Data

Test Conditions

DCVDD=1.8V, AVDD1=AVDD2=DBVDD=3.3V, T

A

= +25

o

C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Analogue to Digital Converter (ADC) - Input from L2, R2 into right PGA mixer. L2_2INPPGA and R2_2INPPGA = 0.

INPPGAVOLL, INPPGAVOLR, L2_2BOOSTVOL, R2_2BOOSTVOL, ADCLVOL and ADCRVOL = 0dB

Signal to Noise Ratio

3

SNR

A-weighted

AVDD1=AVDD2=3.3V

A-weighted

AVDD1=AVDD2=2.5V

Total Harmonic Distortion

4

THD

-3dBV Input

AVDD1=AVDD2=3.3V

-3dBV Input

AVDD1=AVDD2=2.5V

Total Harmonic Distortion + Noise

5

95

93

-86

-78

-80

-76

100

dB

dB

dBFS

dBFS

dBFS

dBFS

dBFS

THD+N

-3dBV Input

AVDD1=AVDD2=3.3V

-3dBV Input

AVDD1=AVDD2=2.5V

Channel Separation

6

1kHz input signal

DAC to left and right mixers into 10kΩ / 50pF load on LOUT1 and ROUT1

LOUT1VOL, ROUT1VOL, DACLVOL and DACRVOL = 0dB

Full-scale output

1

LOUT1VOL and

ROUTVOL = 0dB

3

AVDD1/3.3

100

99

-84

-86

-83

-84

100

V

rms

dB

dB

dBFS

dBFS

dBFS

dBFS

dB

Signal to Noise Ratio

SNR

A-weighted

AVDD1=AVDD2=3.3V

A-weighted

AVDD1=AVDD2=2.5V

Total Harmonic Distortion

4

THD

0dBFS input

AVDD1=AVDD2=3.3V

0dBFS input

AVDD1=AVDD2=2.5V

Total Harmonic Distortion + Noise

5

THD+N

0dBFS input

AVDD1=AVDD2=3.3V

0dBFS input

AVDD1=AVDD2=2.5V

Channel Separation

6

DAC to L/R mixer into 10kΩ / 50pF load on L/ROUT2

LOUT2VOL, ROUT2VOL, DACLVOL and DACRVOL = 0dB

Full-scale output

1

Signal to Noise Ratio 3

SNR

1kHz signal

AVDD1/3.3

A-weighted

AVDD1=AVDD2=3.3V

A-weighted

AVDD1=AVDD2=2.5V

100

96

-84

-82

-82

-80

100

AVDD2/3.3

SNR

A-weighted

AVDD1=AVDD2=3.3V

101.5

V

rms

dB

dB

dBFS

dBFS

dBFS

dBFS

dB

V

rms

dB

Total Harmonic Distortion

4

THD

0dBFS input

AVDD1=AVDD2=3.3V

0dBFS input

AVDD1=AVDD2=2.5V

Total Harmonic Distortion + Noise

5

THD+N

0dBFS input

AVDD1=AVDD2=3.3V

0dBFS input

AVDD1=AVDD2=2.5V

Channel Separation

6

Full-scale output voltage

Signal to Noise Ratio

3

1kHz input signal

DAC to OUT3 and OUT4 mixers to OUT3/OUT4 outputs into 10kΩ / 50pF load. DACVOLL and DACVOLR = 0dB

w

PD Rev 4.0 November 2006

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