WM8726 Просмотр технического описания (PDF) - Wolfson Microelectronics plc

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WM8726

24-bit 192kHz Stereo DAC

Wolfson Microelectronics plc 

WM8726

Production Data

DC ELECTRICAL CHARACTERISTICS

PARAMETER

Supply range

Ground

Supply current

Supply current

Power down current (note 4)

SYMBOL

VDD

GND

TEST CONDITIONS

MIN

3.0

VDD = 5V

VDD = 3.3V

VDD=3.3V

TYP

MAX

UNIT

5.5

V

0

V

27

mA

23

mA

0.6

mA

ELECTRICAL CHARACTERISTICS

All MIN/MAX characteristics are guaranteed over the recommended operating conditions. Typical characteristics are based on

measurements taken under the test conditions specified below.

Test Conditions

VDD = 5V, GND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.

PARAMETER

SYMBOL TEST CONDITIONS

MIN

Digital Logic Levels (TTL Levels)

Input LOW level

VIL

Input HIGH level

VIH

2.0

Output LOW

VOL

IOL = 2mA

Output HIGH

VOH

IOH = 2mA

VDD - 0.3V

Analogue Reference Levels

Reference voltage (CAP)

Potential divider resistance

RCAP

VDD to CAP and CAP

to GND

DAC Output (Load = 10k 50pF)

0dBFs Full scale output voltage

At DAC outputs

DAC Performance (+25˚C )

SNR (Note 1,2,3)

SNR (Note 1,2,3)

SNR (Note 1,2,3)

SNR (Note 1,2,3)

SNR (Note 1,2,3)

SNR (Note 1,2,3)

THD (Note 3)

Dynamic Range (Note 2)

DAC channel separation

Analogue Output Levels

Output level

A-weighted,

90

@ fs = 48kHz

A-weighted

@ fs = 96kHz

A-weighted

@ fs = 192kHz

A-weighted,

@ fs = 48kHz

VDD = 3.3V

A-weighted

@ fs = 96kHz

VDD = 3.3V

Non ‘A’ weighted @ fs =

48kHz

1kHz, 0dBFs

1kHz, THD+N @

90

-60dBFs

Load = 10k, 0dBFS

Load = 10k, 0dBFS,

(VDD = 3.3V)

TYP

VDD/2

33k

1.1 x

VDD/5

97

94

94

93

93

95

-89

97

93

1.1

0.72

MAX

0.8

GND + 0.3V

UNIT

V

V

V

V

V



Vrms

dB

dB

dB

dB

dB

dB

dB

dB

dB

VRMS

VRMS

w

PD, Rev 4.8, January 2012

6

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