WM8581AGEFT Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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производитель

WM8581AGEFT

Multichannel CODEC with S/PDIF Transceiver

Wolfson Microelectronics plc 

Production Data

WM8581

Test Conditions

AVDD, PVDD, VREFP = 5V, DVDD = 3.3V, AGND, VREFN = 0V, PGND, DGND = 0V, TA = +25oC, 1kHz Signal, fs = 48kHz,

24-Bit Data, Slave Mode, MCLK, ADCMCLK = 256fs, 1Vrms Input Signal Level unless otherwise stated.

PARAMETER

SYMBOL TEST CONDITIONS

MIN

TYP

MAX

UNIT

A-Weighted

@ fs = 96kHz, AVDD =

3.3V

97

dB

A-Weighted

@ fs = 192kHz

Unweighted,

94

dB

@ fs = 192kHz

94

dB

Total Harmonic Distortion

THD

Dynamic Range

ADC Channel Separation

Channel Level Matching (See

Terminology note 4)

Channel Phase Deviation

Offset Error

DNR

Digital Logic Levels (CMOS Levels)

Input LOW level

VIL

Input HIGH level

VIH

Input leakage current

Input capacitance

Output LOW

VOL

Output HIGH

VOH

Analogue Reference Levels

Reference voltage

VVMID

w

A-Weighted

@ fs = 192kHz, AVDD

= 3.3V

1kHz, -1dB Full Scale

@ fs = 48kHz

1kHz, -1dB Full Scale

@ fs = 96kHz

1kHz, -1dB Full Scale

@ fs = 192kHz

-60dB FS

90

1kHz Input

1KHz Signal

1kHz Signal

HPF On

HPF Off

-87

-80

dB

-86

dB

-85

dB

100

97

dB

0.1

dB

0.0001

0

100

Degree

LSB

LSB

IOL=1mA

IOH= -1mA

0.3 x DVDD

V

0.7 x DVDD

V

-1

±0.2

+1

µA

5

pF

0.1 x DVDD

V

0.9 x DVDD

V

VREFP/2 – VREFP/2 VREFP/2 +

V

50mV

50mV

PD Rev 4.0 April 2007

13

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