Measurement-computing PCIM-DDA06/16 Manuel d'utilisateur télécharger pdf (Page 8)

PCIM-DDA06/16 User's Guide Introducing the PCIM-DDA06/16

PCIM-DDA06/16 block diagram

The PCIM-DDA06/16 board consists of two functional sections: analog output and digital I/O. The digital I/O

section consists of a single 82C55, and a 24-line digital I/O chip. The analog output section consists of six

identical circuits, each consisting of a DAC, an OP27 output buffer, and a gain range control switch. You can

control each analog output individually, or control all six outputs simultaneously.

PCIM-DDA06/16 functions are illustrated in the block diagram shown here.

FIRSTPORTA Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

FIRSTPORTB Bit 0

Bit 1

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

FIRSTPORTC Bit 0

Bit 1

Bit 2

Bit 3

FIRSTPORTC Bit 4

Bit 5

Bit 6

Bit 7

DGND

Data Path and Control

FIRSTPORTA

FIRSTPORTB

C HI

8255

Digital I/O

Note:

Digital I/O

pin assignments are

the same as for

the PCI-DIO24

37-pin conn.

PCI Bus - (5V, 32-bits, 33 MHz)

Gain switch

AD660

OP27

Gain switch

C LO

1-2

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 19 20

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Measurement-computing PCIM-DDA06/16 Manuel d'utilisateur Page 8

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