WM8758B Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

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Lista de partido

WM8758B

Stereo CODEC with Headphone Driver and Line Out

Wolfson Microelectronics plc 

Production Data

WM8758B

Test Conditions

DCVDD=1.8V, AVDD1=AVDD2=3.0V, DBVDD=3.3V, TA = +25oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise

stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DAC to L/R Mix to Line-Out (LOUT1/ROUT1 with 10k / 50pF load, analogue volume controls set to 0dB)

Full-scale output

PGA gains set to 0dB

AVDD1/3.3

Vrms

Signal to Noise Ratio (Note 5,6)

SNR

A-weighted

100

dB

AVDD1=AVDD2=3.0V

A-weighted

96

dB

AVDD1=AVDD2=2.5V

22Hz to 20kHz

95.5

dB

AVDD1=AVDD2=3.0V

22Hz to 20kHz

93.5

dB

AVDD1=AVDD2=2.5V

Total Harmonic Distortion

THD

full-scale signal

-86

dB

(Note 7)

AVDD1=AVDD2=3.0V

full-scale signal

-86

dB

AVDD1=AVDD2=2.5V

Total Harmonic Distortion + Noise THD+N

full-scale signal

-84

dB

(Note 7)

AVDD1=AVDD2=3.0V

full-scale signal

-84

dB

AVDD1=AVDD2=2.5V

Channel Separation (Note 8)

1kHz signal

100

dB

Ground noise rejection

10mV, 20kHz noise on

40

dB

HPCOM, HPCOM enabled

DAC to L/R Mix to Line-Out (LOUT2/ROUT2 with 10k / 50pF load, analogue volume controls set to 0dB)

Full-scale output

PGA gains set to 0dB

AVDD1/3.3

Vrms

Signal to Noise Ratio (Note 5,6)

SNR

A-weighted

95

100

dB

AVDD1=AVDD2=3.0V

A-weighted

96

dB

AVDD1=AVDD2=2.5V

22Hz to 20kHz

95.5

dB

AVDD1=AVDD2=3.0V

22Hz to 20kHz

93.5

dB

AVDD1=AVDD2=2.5V

Total Harmonic Distortion

THD

full-scale signal

-87

-80

dB

(Note 7)

AVDD1=AVDD2=3.0V

full-scale signal

-82

dB

AVDD1=AVDD2=2.5V

Total Harmonic Distortion + Noise THD+N

full-scale signal

-85

-75

dB

(Note 7)

AVDD1=AVDD2=3.0V

full-scale signal

-80

dB

AVDD1=AVDD2=2.5V

Channel Separation (Note 8)

1kHz signal

100

dB

Ground noise rejection

10mV, 20kHz noise on

40

dB

LCOM, LCOM enabled

w

PD, Rev 4.4, January 2012

9

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