AD7877_17 datasheet(41/46 Pages) AD

부품명	AD7877

상세설명	Touch Screen Controller

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AD7877

Data Sheet

Register Name: DAC Register

Write Address: 1110

Read Address:

01110

Default Value:

0x008

Type:

Read/write

Table 21.

Bit

Name

Read/Write

Description

0

RANGE

R/W

Output range of the DAC in voltage mode

0 = 0 to VCC/2

1 = 0 to VCC

1

Not Used

R/W

This bit is not used

2

V/I

R/W

Voltage output and current output

0 = voltage

1 = current

3

PD

R/W

DAC power-down

0 = DAC on

1 = DAC powered down

4

DAC0

LSB of DAC data

5

DAC1

Bit 1 of DAC data

6

DAC2

Bit 2 of DAC data

7

DAC3

Bit 3 of DAC data

8

DAC4

Bit 4 of DAC data

9

DAC5

Bit 5 of DAC data

10

DAC6

Bit 6 of DAC data

11

DAC7

MSB of DAC data

Register Name: Y Position

Write Address: N/A

Read Address:

10000

Default Value:

0x000

Type:

Read only

This register contains the 12-bit result of the measurement at

the X+ input with Y layer excited (Y position measurement).

Register Name: X Position

Write Address: N/A

Read Address:

10001

Default Value:

0x000

Type:

Read only

This register contains the 12-bit result of the measurement at

the Y+ input with X layer excited (X position measurement).

Register Name: Z2

Write Address: N/A

Read Address:

10010

Default Value:

0x000

Type:

Read only

This register contains the 12-bit result of the measurement at

the Y− input with excitation voltage applied to Y+ and X− (used

for touch-pressure calculation).

Register Name: AUX1

Write Address: N/A

Read Address:

10011

Default Value:

0x000

Type:

Read only

This register contains the 12-bit result of the measurement at

Auxiliary Input 1.

Rev. E | Page 40 of 45

유사한 부품 번호 - AD7877_17

제조업체	부품명	데이터시트	상세설명
Analog Devices	AD7877	843Kb / 45P	Touch Screen Controller REV. D

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AD7877 데이터시트(PDF) 41 Page - Analog Devices

AD7877 데이터시트(HTML) 41 Page - Analog Devices

유사한 부품 번호 - AD7877_17

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