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參數(shù)資料
| 型號： | TLS24306 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Magnetoresistive/Thin-Film Read/Write Preamplifiers(6通道磁阻/薄膜讀/寫用前置放大器) |
| 中文描述： | 磁阻/薄膜讀/寫前置放大器（6通道磁阻/薄膜讀/寫用前置放大器） |
| 文件頁數(shù)： | 19/23頁 |
| 文件大?。?/td> | 489K |
| 代理商： | TLS24306 |
TLS24302, TLS24306
2- AND 6-CHANNEL MAGNETORESISTIVE/THIN-FILM
READ/WRITE PREAMPLIFIERS
SQHS007A – DECEMBER 8, 1995 – REVISED DECEMBER 15, 1995
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
thermal-asperity detection
To detect thermal asperity, a DC comparator connected to the input of the booster amplifier is presented. The
device acknowledges V(RDX/RDY) > 460-mV MR-head read signal as thermal asperity and responds by:
a) Disabling RDX/RDY output buffers to avoid disturbing the next read channel
b) Reporting fault in read mode
Release timing is extended 100 ns from the end point of thermal-asperity detection.
The device behavior for thermal-asperity detection is shown in Figure 4.
100 ns
100 ns
Hi Z
Hi Z
MR-Head
Read Signal
OE
(internal)
RDX/RDY
FLT/SE
IT
V
Thermal-Asperity
Detection Threshold
I
Figure 4. Thermal-Asperity Detection
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