WM8580 Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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Компоненты Описание

производитель

WM8580

Multichannel CODEC with S/PDIF Transceiver

Wolfson Microelectronics plc 

WM8580

Production Data

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

Power Supply Rejection Ratio

PSRR

1kHz 100mVp-p

50

dB

(See note 4)

20Hz to 20kHz

45

dB

ADC Performance

100mVp-p

Full Scale Input Signal Level (for

ADC 0dB Input)

Input resistance

1.0 x

Vrms

VREFP/5

6

kΩ

Input capacitance

10

pF

Signal to Noise Ratio (See

SNR

A-weighted,

90

100

dB

Terminology 1,2,4)

@ fs = 48kHz

Unweighted,

97

dB

@ fs = 48kHz

A-weighted,

97

dB

@ fs = 48kHz, AVDD =

3.3V

A-weighted,

97

dB

@ fs = 96kHz

Unweighted,

94

dB

@ fs = 96kHz

A-weighted,

94

dB

@ fs = 96kHz, AVDD =

3.3V

A-weighted,

97

dB

@ fs = 192kHz

Unweighted,

94

dB

@ fs = 192kHz

A-weighted,

94

dB

@ fs = 192kHz, AVDD

= 3.3V

Total Harmonic Distortion

THD

1kHz, -1dB Full Scale

@ fs = 48kHz

-87

-80

dB

1kHz, -1dB Full Scale

-86

dB

@ fs = 96kHz

1kHz, -1dB Full Scale

-85

dB

@ fs = 192kHz

Dynamic Range

DNR

-60dB FS

90

100

ADC Channel Separation

1kHz Input

97

dB

Channel Level Matching (See

Terminology 4)

1KHz Signal

0.1

dB

Channel Phase Deviation

1kHz Signal

0.0001

Degree

Offset Error

HPF On

0

LSB

HPF Off

100

LSB

Digital Logic Levels (CMOS Levels)

Input LOW level

VIL

0.3 x DVDD

V

Input HIGH level

VIH

0.7 x DVDD

V

Input leakage current

-1

±0.2

+1

µA

Input capacitance

5

pF

Output LOW

Output HIGH

VOL

IOL=1mA

VOH

IOH= -1mA

0.9 x DVDD

0.1 x DVDD

V

V

w

PD Rev 4.3 August 2007

10

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