WM8718

Production Data

w

PD Rev 4.1 March 2004

6

DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Digital supply range

DVDD

3.0

5.5

V

Analogue supply range

AVDD

3.0

5.5

V

Ground

AGND, DGND

0

V

Difference DGND to AGND

-0.3

0

+0.3

V

AVDD = 3.3V

0.191

a

19

mA

Supply current

AVDD = 5V

0.191

a

22

mA

DVDD = 3.3V

160 uA

7.1

mA

Supply current

DVDD = 5V

160 uA

8.3

mA

Notes:

1.

This value represents the current usage when there are no switching digital inputs, MCLK is applied and the chip is in

power down mode

2.

Digital supply DVDD must never be more than 0.3V greater than AVDD.

ELECTRICAL CHARACTERISTICS

Test Conditions

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Digital Logic Levels (TTL Levels)

Input LOW level

0.8

V

Input HIGH level

2.0

V

Output LOW

AGND + 0.3V

V

Output HIGH

DVDD – 0.3V

V

Analogue Reference Levels

Reference voltage

VMID

AVDD/2 -

50mV

AVDD/2

AVDD/2 +

50mV

V

Potential divider resistance

8.7k

Ω

DAC Output (Load = 10k

Ω

Ω

Ω

Ω 50pF)

0dBFs Full scale output voltage

At DAC outputs

2 x

AVDD/5

Vrms

SNR (Note 1,2,3)

A-weighted,

@ fs = 48kHz

105

111

dB

SNR (Note 1,2,3)

A-weighted

@ fs = 96kHz

109

dB

SNR (Note 1,2,3)

A-weighted

@ fs = 192kHz

109

dB

SNR (Note 1,2,3)

A-weighted,

@ fs = 48kHz

AVDD = 3.3V

105

dB

SNR (Note 1,2,3)

A-weighted

@ fs = 96kHz

AVDD = 3.3V

102

dB

SNR (Note 1,2,3)

Non ‘A’ weighted @ fs

= 48kHz

108

dB

THD (Note 1,2,3)

1kHz, 0dBFs

-100

-80

dB

THD+N (Dynamic range, Note 2)

1kHz, -60dBFs

105

111

dB

DAC channel separation

100

dB