AS1504-T 查看數據表（PDF） - austriamicrosystems AG

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AS1504-T

Octal 8-Bit Programmable Low-Power DACs with Shutdown and Mid-Scale Reset

austriamicrosystems AG 

AS1504, AS1505

Data Sheet

7 Pinout

Pin Assignments

Figure 10. Pin Assignments (Top View)

austriamicrosystems

Pin Assignments

VREFH 1

OUT1 2

OUT2 3

OUT3 4

OUT4 5

SHDNN 6

CSN 7

GND 8

AS1504

16 VDD

15 RSN

14 OUT8

13 OUT7

12 OUT6

11 OUT5

10 SDI

9 CLK

VREFH 1

OUT1 2

OUT2 3

OUT3 4

OUT4 5

SHDNN 6

CSN 7

GND 8

AS1505

16 VDD

15 OUT8

14 OUT7

13 OUT6

12 OUT5

11 SDI

10 CLK

9 VREFL

Pin Descriptions

Table 4. Pin Descriptions

Pin Number

Pin Name

CLK

CSN

(see Figure 10)

GND

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

RSN

SDI

SHDNN

VDD

VREFH

VREFL

Description

Serial Clock Input. Positive-edge triggered.

Chip Select. When this active-low pin goes high, the serial input register data is

decoded based on the address bits and loaded into the target DAC register.

Ground

DAC 1 Output. DAC 1 address = 0002.

DAC 2 Output. DAC 1 address = 0012.

DAC 3 Output. DAC 1 address = 0102.

DAC 4 Output. DAC 1 address = 0112.

DAC 5 Output. DAC 1 address = 1002.

DAC 6 Output. DAC 1 address = 1012.

DAC 7 Output. DAC 1 address = 1102.

DAC 8 Output. DAC 1 address = 1112.

Reset (AS1504 Only). Active-low asynchronous reset to mid-scale output setting.

Loads all DAC latches with 80h.

Serial Data Input

Shutdown. Active-low reference input open-circuit. All DAC outputs open-circuit.

Note: DAC latch settings are maintained during shutdown.

Positive Supply Voltage. +3 to +5V.

Common High-Side DAC Reference Input

Common Low-Side DAC Reference Input (AS1505 Only).

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Revision 1.0

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