WM8756

Advance Information

AI Rev 1.3 October 2001

5

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 of DGND to AGND

-0.3

0

+0.3

V

Difference of GR to AGND

-0.3

0

+0.3

V

Analogue supply current

AVDD = 5V

58

mA

Digital supply current

DVDD = 5V

22

mA

Analogue supply current

AVDD = 3.3V

57

mA

Digital supply current

DVDD = 3.3V

11

mA

Analogue supply current

Power down, stop clock

0.4

mA

Digital supply current

Power down, stop clock

0.09

mA

Table 2 DC electrical characteristics

Note:

1. AVDD must be equal or greater than DVDD. DVDD = 3V, AVDD = 5V is allowed.

2. Where used AVDD represents AVDD1 = AVDD2, AGND represents AGND1 = AGND2 = AGND3 and GR represents

GR0 = GR1 = GR2.

AC 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

0.4

V

Output HIGH

2.4

V

Analogue Reference Levels

Reference voltage

AVDD2 –

GR2/2

V

Potential divider resistance

25K

Ohms

DAC Output (Load = 10K ohms. 50pF)

0dBFs Full scale output voltage

At DAC outputs

1.1 x

AVDD1/5

SNR (Note 1,2,3)

A-weighted,

@ fs = 48KHz

100

106

dB

SNR (Note 1,2,3)

A-weighted

@ fs = 96KHz

98

105

dB

SNR (Note 1,2,3)

A-weighted

@ fs = 192KHz

105

dB

SNR (Note 1,2,3)

A-weighted,

@ fs = 48KHz

AVDD=DVDD=3.3V

103

dB

SNR (Note 1,2,3)

A-weighted

@ fs = 96KHz

AVDD=DVDD=3.3V

103

dB