Rainbow-electronics DAB-IMU-C01 Manuel d'utilisateur télécharger pdf (Page 7)

ADIS16250/ADIS16255

Rev. B | Page 7 of 20

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

DNC = DO NOT CONNECT

19 18 17

109

876

DNC

COM

DNCDNCDIO1 RST

VREF

COM

VCC VCC

DNC

AUX

DAC

AUX

ADC

RATE

FILT

DIO0

DIN

DOUT

SCLK

POSITIVE OUTPUT

ROTATIONAL

DIRECTION

TOP VIEW

(Not To Scale)

ADIS16250/

ADIS16255

06070-004

Figure 5. Pin Configuration

Table 4. Pin Function Descriptions

Pin No. Mnemonic Type

Description

1 SCLK I SPI, Serial Clock.

2 DOUT O SPI, Data Output.

3 DIN I SPI, Data Input.

I SPI, Chip Select, Active Low.

5, 6 DIO0, DIO1 I/O Multifunction Digital Input/Output Pin.

RST

I Reset, Active Low. This resets the sensor signal conditioning circuit and initiates a start-up sequence.

8, 9, 10, 11 DNC – Do Not Connect.

12 AUX DAC O Auxiliary DAC Analog Output Voltage.

13 AUX ADC I Auxiliary ADC Analog Input Voltage.

14 RATE O Analog Rate Signal Output (Uncalibrated).

15 FILT I

Analog Amplifier Summing Junction. This is used for setting the analog bandwidth. See the

Analog

Bandwidth

section for more details.

16, 17 VCC S 5.0 V Power Supply.

18, 19 COM S Common. Reference point for all circuitry in the ADIS16250/ADIS16255.

20 VREF O Precision Reference Output.

S = supply; O = output; I = input.

RECOMMENDED LAYOUT

3.800

8×

5.0865

8×

0.773

16×

0.500

20×

1.127

20×

10.173

2×

7.600

4×

06070-010

11mm × 11mm STACKED LGA PACKAGE

Figure 6. Recommended Pad Layout (Units in Millimeters)

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

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