CS5516-AP Просмотр технического описания (PDF) - Cirrus Logic

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CS5516-AP

16/20-bit bridge transducer A/D conveter

Cirrus Logic 

PIN DESCRIPTIONS

CS5516, CS5520

Modulator Diff. Voltage Ref + MDRV+ 1

Modulator Diff. Voltage Ref - MDRV- 2

Positive Analog Power

VA+ 3

Negative Analog Power

VA- 4

Analog Ground One AGND1 5

Analog In +

AIN+ 6

Analog In -

AIN- 7

Analog Ground Two AGND2 8

Voltage Ref In + VREF+ 9

Voltage Ref In - VREF- 10

Bridge Excite 2

BX2 11

Bridge Excite 1

BX1 12

24 SMODE Serial Interface Mode

23 XOUT

Crystal Out

22 XIN

Crystal In

21 VD-

Negative Digital Power

20 VD+

Positive Digital Power

19 DGND Digital Ground

18 SOD

Serial Output Data

17 SID

Serial Input Data

16 SCLK

Serial Clock Input

15 DRDY

Data Ready

14 CS

Chip Select

13 RST

Reset

Power Supply Connections

VD+ - Positive Digital Power, PIN 20.

Positive digital supply voltage. Nominally +5 volts.

VD- - Negative Digital Power, PIN 21.

Negative digital supply voltage. Nominally -5 volts.

DGND - Digital Ground, PIN 19.

Digital ground.

VA+ - Positive Analog Power, PIN 3.

Positive analog supply voltage. Nominally +5 volts.

VA- - Negative Analog Power, PIN 4.

Negative analog supply voltage. Nominally -5 volts.

AGND1, AGND2 - Analog Ground, PINS 5, 8.

Analog ground.

Clock Generator

XIN; XOUT - Crystal In; Crystal Out, Pins 22, 23

An internal gate is connected to these pins enabling the use of either a crystal or a ceramic

resonator to provide the master clock for the device. Alternatively, an external (CMOS

compatible) clock can be input to the XIN pin as the master clock for the device.

DS74F21

27

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