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1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

VREF

VOUT

AVSS

AVDD

AGND

BPB

OSR2

OSR1

DGND

RSTB

MUTEB

DVDD

DGND

FSYNC

SCLK

SDIN

(TOP VIEW)

DAC8580

SLAS458B – JUNE 2005 – REVISED AUGUST 2005

TSSOP PACKAGE

TERMINAL FUNCTIONS

NO.

NAME

DESCRIPTION

1

VREF

Reference input voltage; 3 V to AVDD.

2

VOUT

DAC output voltage; output swing is ±VREF

3

AVSS

Negative analog supply voltage; tie to –5 V

4

AVDD

Positive analog supply voltage; tie to +5 V

5

AGND

Ground reference for analog circuitry of the device

6

BPB

Active-low, asynchronous digital input for filter bypass

7

OSR2

Digital input for selecting the oversampling ratio

8

OSR1

Digital input for selecting the oversampling ratio

9

DIN

Digital input, serial data

10

SCLK

Digital input, serial bit clock

11

FSYNC

Digital input. FSYNC is word clock.

12

DGND

Ground reference for digital circuitry

13

DVDD

Positive digital supply, 1.8-V to 5.5-V compatible

14

MUTEB

Digital input, actime low, for forcing the output to mid-scale.

15

RSTB

Filter reset. Active-low, asynchronous digital input for disabling all digital filter activity.

16

DGND

Must connect to digital ground reference to ensure correct operation.

5

Not Recommended For New Designs