AL1213A 데이터 시트보기 (PDF) - Samsung

부품명

상세내역

제조사

AL1213A

8-BIT 0.5MSPS DAC

Samsung 

8-BIT 0.5MSPS DAC

PACKAGE PIN DESCRIPTION

Name

VDDA

VBB

VSSA

DI0 ~ DI7

VRB

VRT

AOUT

NC

Pin No

1,4

3

5

8 ~ 15

22

23

24

2,6,7,16,17,18

19,20,21,25,26

27,28

AL1213A

I/O Type

AP

AG

AG

DI

AI

AI

AO

DO

Pin Description

Analog Power

Analog Ground

Analog Ground

Digital Input Data

Voltage Reference Bottom (0V)

Voltage Reference Top (5V)

Analog Voltage Output

No Connection

PC BOARD LAYOUT CONSIDERATIONS

PC Board Considerations

To minimize noise on the power lines and the ground lines, the digital inputs need to be shielded and decoupled.

This trace length between groups of VDD (VDDA, VDDD) and VSS (VSSA, VSSD) pins should be as short as

possible so as to minimize inductive ringing.

Supply Decoupling and Planes

For the decoupling capacitor between the power line and the ground line, 0.1mF ceramic capacitor is used in

parallel with a 10mF tantalum capacitor. The digital power plane (VDDD) and analog power plane (VDDA) are

connected through a ferrite bead, and also the digital ground plane (VSSD) and the analog

ground plane (VSSA). This ferrite bead should be located within 3inches of the AL1213A. The analog power

plane supplies power to the AL1213A of the analog output pin and related devices.

10

Share Link: