WM8759 Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

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WM8759

24-bit 192kHz Stereo DAC with Headphone Buffer

Wolfson Microelectronics plc 

WM8759

DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

Supply range

AVDD, DVDD

2.7

Ground

AGND, DGND

Analog supply current

AVDD = 5V

AVDD = 3.3V

Digital supply current

DVDD = 5V

DVDD = 3.3V

Power down current (note 4)

AVDD=DVDD=5V

TYP

0

12

8

4

0.01

Pre-Production

MAX

5.5

UNIT

V

V

mA

mA

mA

ELECTRICAL CHARACTERISTICS

Test Conditions

AVDD = 5V, DVDD = 3.3V, GND = 0V, TA = +25oC, fs = 48kHz, MCLK = 256fs unless otherwise stated.

PARAMETER

SYMBOL TEST CONDITIONS

MIN

TYP

MAX

Digital Logic Levels (TTL Levels)

Input LOW level

VIL

0.8

Input HIGH level

VIH

2.0

Output LOW

VOL

IOL = 2mA

DGND + 0.3V

Output HIGH

VOH

IOH = 2mA

DVDD – 0.3V

Analogue Reference Levels

Reference voltage (CAP)

AVDD/2

Potential divider resistance

RCAP

AVDD to CAP and CAP

50k

to GND

DAC Output (Load = 10kΩ. 50pF)

0dBFs Full scale output voltage

At DAC outputs

1.1 x

AVDD/5

SNR (Note 5,6,7)

A-weighted,

94

100

@ fs = 48kHz

SNR (Note 5,6,7)

A-weighted

97

@ fs = 96kHz

SNR (Note 5,6,7)

A-weighted

97

@ fs = 192kHz

SNR (Note 5,6,7)

A-weighted,

95

@ fs = 48kHz

VDD = 3.3V

SNR (Note 5,6,7)

A-weighted

95

@ fs = 96kHz

VDD = 3.3V

SNR (Note 5,6,7)

Non ‘A’ weighted @ fs

97

= 48kHz

THD+N (Note 7)

10k load

1kHz, 0dBFs

-88

THD+N driving headphone

16R load

1kHz, 0dBFs

-72

DAC channel separation

93

UNIT

V

V

V

V

V

Ω

Vrms

dB

dB

dB

dB

dB

dB

dB

dB

dB

w

PP Rev 3.1 June 2006

6

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