WM9709 데이터 시트보기 (PDF) - Wolfson Microelectronics plc

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WM9709

AC-link Interface Audio DAC

Wolfson Microelectronics plc 

WM9709

Production Data

DC ELECTRICAL CHARACTERISTICS

Test Conditions:

AVDD = 5V, AGND = 0V, DVDD = 3.3V, DGND = 0V, TA = 25oC, unless otherwise stated.

PARAMETER

Supply Ranges

Digital supply range

Analogue supply range

Digital ground

Analogue ground

Difference DGND to AGND

Supply Currents

Analogue supply current

SYMBOL

DVDD

AVDD

DGND

AGND

Analogue supply current

Digital supply current

Digital Logic Levels (DVDD = 3.3)

Input LOW level

VIL

Input HIGH level

VIH

Output LOW

VOL

Output HIGH

VOH

TEST CONDITIONS

MIN

TYP

MAX

-10%

-10%

-0.3

3.3

3.3 to 5.0

0

0

0

+10%

+10%

+0.3

DVDD=3.3V,

AVDD = 5V

DVDD, AVDD = 3.3V

DVDD, AVDD = 3.3V

12.5

20

11

5

8

ILOAD = 1mA

ILOAD = 1mA

DGND - 0.3

0.75 ∗ DVDD

0.9 ∗ DVDD

0.25 ∗ DVDD

DVDD + 0.3

0.1 ∗ DVDD

UNIT

V

V

V

V

V

mA

mA

mA

V

V

V

V

AC ELECTRICAL CHARACTERISTICS

Test Conditions:

AVDD = 5V, AGND = 0V, DVDD = 3.3V, DGND = 0V, TA = 25oC, unless otherwise stated.

PARAMETER

SYMBOL TEST CONDITIONS

MIN

Reference Levels

Reference input/output

CAP impedance

CAP

AVDD/2 –

25mV

DAC Circuit Specifications (48kHz Sample Rate)

SNR A-weighted (Note 1,2)

AVDD = 5V

95

AVDD = 3.3V

Dynamic Range

DNR

AVDD = 5V

95

AVDD = 3.3V

Full scale output voltage into

10kΩ load

AVDD=5V

0.95

AVDD=3.3V

THD

0dBfs

Channel Separation

95

Channel Matching

-0.35

PSRR

1kHz, 10µF on CAP pin

Output offset wrt CAP voltage

-30

Clock Frequency Range

Crystal clock

BITCLK frequency

SYNC frequency

TYP

AVDD/2

5

102

99

102

99

1.0

0.66

-95

102

0

46

0

24.576

12.288

48.0

MAX

AVDD/2 +

25mV

1.05

-85

0.35

30

UNIT

kΩ

dB

dB

dB

dB

Vrms

Vrms

dB

dB

dB

dB

mV

MHz

MHz

kHz

w

PD Rev 1.3 February 2003

4

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