參數(shù)資料
型號: TLS24308
廠商: Texas Instruments, Inc.
英文描述: Magnetoresistive/Thin-Film Read/Write Preamplifiers(8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(8通道磁阻/薄膜讀/寫用前置放大器)
文件頁數(shù): 24/31頁
文件大?。?/td> 676K
代理商: TLS24308
TLS24308, TLS24310, TLS24318, TLS24320
8- AND 10-CHANNEL MAGNETORESISTIVE/THIN-FILM
READ/WRITE PREAMPLIFIERS
SQHS009 – JANUARY 1996
24
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
All the normal and fault modes and the possible states are illustrated in Figure 5.
Head Short to GND
Low Frequency
Head Open
No Write Current
WRITE FLT
R/W = L
IBON = L
CS = L
FLT = L
lI(BIAS) = Hi Z
lI(W) = Hi Z
WRITE FLT
R/W = L
IBON = L
CS = L
FLT = L
lI(BIAS) = ON
lI(W) = ON
WRITE FLT
R/W = L
IBON = H
CS = L
FLT = L
lI(BIAS) = Hi Z
lI(W) = ON
WRITE FLT
R/W = L
IBON = H
CS = L
FLT = L
lI(BIAS) = Hi Z
lI(W) = Hi Z
WRITE FLT
R/W = L
IBON = H
CS = L
FLT = L
lI(BIAS) = Hi Z
lI(W) = P.D.
READ FLT
R/W = H
CS = H
FLT = L
lI(BIAS) = Hi Z
lI(W) = P.D.
READ MODE
R/W = H
CS = L
FLT = H
lI(BIAS) = ON
lI(W) = P.D.
WRITE MODE
R/W = L
IBON = H
CS = L
FLT = H
lI(BIAS) = Hi Z
lI(W) = ON
READ FLT
R/W = H
CS = L
FLT = L
lI(BIAS) = ON
lI(W) = P.D.
READ FLT Latch
R/W = H
CS = L
FLT = L
lI(BIAS) = Hi Z
lI(W) = P.D.
IDLE FLT
CS = H
R/W = L
R/W = H
FLT = L
lI(BIAS) = Hi Z
lI(W) = P.D.
IDLE MODE
CS = H
FLT = H
lI(BIAS) = Hi Z
lI(W) = P.D.
R/W = L
R/W = H
WRITE (W/IBON)
R/W = L
IBON = L
CS = L
FLT = H
lI(BIAS) = ON
lI(W) = ON
SERVO WRITE MODE
R/W = L
IBON = H
CS = L
FLT = SE
lI(BIAS) = Hi Z
lI(W) = ON
H/S
H/S
H/S
Low VCC
Low VCC
CS
CS
CS = H
MR Head Short (Metal Option)
MR Head Open
HS Change
R/W
IBON
VCC+ 1.2 V
R/W
Low VCC
Thermal Asperity
(Metal Option)
Low Frequency
No Write Current
15
14
5
4
12
11
10
6
1
7
3
2
8
9
WRITE FLT
R/W = L
IBON = L
CS = L
FLT = L
lI(BIAS) = Hi Z
lI(W) = P.D.
13
Head Short
to GND
Low VCC
Low VCC
P.D. = Pulled down
Figure 5. All-States Diagram (Normal Mode and Fault Mode)
相關(guān)PDF資料
PDF描述
TLS24310 Magnetoresistive/Thin-Film Read/Write Preamplifiers(10通道磁阻/薄膜讀/寫用前置放大器)
TLS24318 Magnetoresistive/Thin-Film Read/Write Preamplifiers(8通道磁阻/薄膜讀/寫用前置放大器)
TLS24320 Magnetoresistive/Thin-Film Read/Write Preamplifiers(10通道磁阻/薄膜讀/寫用前置放大器)
TLSU163 TLSU163
TLSU163F TLSU163
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