SC84520BP 데이터 시트보기 (PDF) - Silan Microelectronics

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SC84520BP

TWO IN ONE SCROLLING MOUSE CONTROLLER

Silan Microelectronics 

Silan

Semiconductors

SC84520

4.Z-AXIS INPUT FUNTION:

a. Photo couples input: Z-axis counter accumulates the Z1, Z2 phase changed by movement.

b. Key-switches input: Pressing Z1, Z2 will start to fill the Z-axis counter with the value beginning at one. Toggling

“M” key can increase the value any time by one. The limit value is ±7.

c. The relationship between the value and the transmission rate as follows:

Value

Rate per second

1

2.7

2

6.4

3

9.2

4

12.8

5

15

6

18

7

20

d. Voltage-sensing mode: There are 7 voltage levels in Z1, Z2 input. The transmission table is the same as key-

switch mode. The relationship between the value of Z-axis counter and the voltage as follows:

Under VDD = 5V condition

Value

0

1

2

3

4

5

6

7

Voltage

1V ↓

1.0V – 1.6V

1.6V – 2.2V

2.2V - 2.8V

2.8V – 3.4V

3.4V – 4.0V

4.0V – 4.6V

4.6V ↑

e. Mechanical mode: The same as optical wheel mode.

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0 2000.12.31

14

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