CXA1940N 查看數據表（PDF） - Sony Semiconductor

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CXA1940N

4ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

Sony Semiconductor 

CXA1940N

Pin Description

No. Symbol

1

GND

2

H0X

3

H0Y

4

H1X

5

H1Y

6

H2X

7

H2Y

8

H3X

9

H3Y

10

NC

11

WUS

12

WDI

13

VCC

14

HS1

15

HS0

19

R/W

20

PS

Equivalent circuit

2

4

6

2k 2k

8

3

5

7

9

11

12

2.1V

14

15

19

20

Description

VCC

Head.

4 channels provided.

GND

VCC

GND

VCC

1.4V

GND

VCC

2.1V

GND

Write unsafe detection output.

Open collector output. When it is

off in Write mode, it means an

error is detected.

Write data input.

At “High” → “Low”,

input is triggered.

5V power supply

Head select signal input.

Selects one of 4 heads according

to Table 2.

Read/Write signal input.

At “High”: Read,

at “Low”: Write.

Power save signal input.

At “High”: Power save.

—3—

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