WM8521

Production Data

w

PD Rev 4.1 August 2006

6

DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

WM8521HC Analogue

supply range

AVDD

7.6

12

13.2

V

WM8521H9 Analogue

supply range

AVDD

7.6

9

13.2

V

Digital supply range

DVDD

2.7

3.3

3.6

V

Ground

AGND / DGND

0

V

AVDD = 12V

28.0

WM8521HC Supply current

DVDD = 3.3V

4.0

mA

AVDD = 9V

25.0

WM8521H9 Supply current

DVDD = 3.3V

4.0

mA

AVDD = 12V

22.8

WM8521HC Power down

current (note 4)

DVDD = 3.3V

0.014

mA

AVDD = 9V

17.1

WM8521H9 Power down

current (note 4)

DVDD = 3.3V

0.014

mA

Note:

1.

AVDD and DVDD are fully independent and can be applied in any order without damage to the device.

ELECTRICAL CHARACTERISTICS

Test Conditions

stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Digital Logic Levels (CMOS Levels)

Input LOW level

0.3 x DVDD

V

Input HIGH level

0.7 x DVDD

V

Output LOW

0.1 x DVDD

V

Output HIGH

0.9 x DVDD

V

Analogue Reference Levels

Reference voltage (CAP)

AVDD/2

V

Potential divider resistance

VDD to CAP and CAP

to GND

50

k

Ω

WM8521HC DAC Output (Load = 10k

Ω

Ω

Ω

Ω. 50pF)

0dBFs Full scale output voltage

At DAC outputs

1.9

2.0

2.1

SNR (Terminology Note 1,2,3)

A-weighted,

@ fs = 48kHz

91

98

dB

SNR (Terminology Note 1,2,3)

A-weighted

@ fs = 96kHz

98

dB

SNR (Terminology Note 1,2,3)

Non ‘A’ weighted @ fs

= 48kHz

95

dB

THD (Note 3)

1kHz, 0dBFs

-81

dB

Dynamic Range (Note 2)

1kHz, THD+N @

-60dBFs

91

98

dB

DAC Channel Separation

1kHz, 0dBFs

93

dB

Power Supply Rejection Ratio

PSRR

1kHz 100mVpp

46

dB