參數(shù)資料
型號(hào)： TLS24302
廠商： Texas Instruments, Inc.
英文描述： Magnetoresistive/Thin-Film Read/Write Preamplifiers(2通道磁阻/薄膜讀/寫(xiě)用前置放大器)
中文描述： 磁阻/薄膜讀/寫(xiě)前置放大器（2通道磁阻/薄膜讀/寫(xiě)用前置放大器）
文件頁(yè)數(shù)： 2/23頁(yè)
文件大小： 489K
代理商： TLS24302
TLS24302, TLS24306
2- AND 6-CHANNEL MAGNETORESISTIVE/THIN-FILM
READ/WRITE PREAMPLIFIERS
SQHS007A – DECEMBER 8, 1995 – REVISED DECEMBER 15, 1995
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The write-head current I
I(W)
and MR-head bias current I
I(BIAS)
are programmable using external resistors.
Recovery time is reduced by holding BHV/IBON low during the write mode. Multichannel servo write is achieved
by taking FLT/SE higher than V
CC
by at least 1.2 V. An optional booster circuit can be used to achieve higher
operating frequencies.
A fault terminal (FLT/SE) goes low when the WDX/WDY input frequency is low, a head is shorted or open, there
is no write current (Ix or Iy), or if V
CC
is low. Additionally, the preamplifiers provide an optional thermal-asperity
detection circuit that can be enabled by using an optional metal mask during the fabrication process.
Table 1 lists the functions that can be changed by a custom metal mask during the fabrication process. Contact
your local Texas Instruments (TI) sales office or representative for further information.
The standard device and optional functions are defined as follows:
Table 1. Optional Functions Available
CIRCUIT FUNCTION
MR-head open fault detection
MR-head short fault detection
Thermal-asperity fault detection
Flip-flop
Booster circuit
Gain
STANDARD DEVICE
CUSTOMIZED DEVICE
Optional
Optional
Optional
Optional
Optional
Optional
All disabled
bl d
bl d
230 V/V at R(MR) = 20
400
(typ)
Differential output resistance
Optional
The TSSOP packages optimize the preamplifiers for package-on-arm applications.
pin assignments
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
RCS
WCS
HS0
HS1
HS2
WDX
WDY
V
CC
BHV/IBON
GND
RDY
RDX
FLT/SE
R/W
CS
CAP2H
CAP2L
W0Y
W0X
R5X
W5Y
W5X
W4X
W4Y
R4X
GND
R3X
CAP1
W3Y
W3X
W2X
W2Y
R2X
GND
R1X
W1Y
W1X
R0X
TLS24306
DBT PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RCS
WCS
HS
WDX
WDY
V
CC
BHV/IBON
GND
RDY
RDX
FLT/SE
R/W
CS
CAP2H
CAP2L
NC
NC
W1X
W1Y
R1X
GND
CAP1
NC
NC
NC
GND
R0X
W0Y
W0X
NC
TLS24302
DBT PACKAGE
(TOP VIEW)
NC – No internal connection
相關(guān)PDF資料
PDF描述
TLS24306 Magnetoresistive/Thin-Film Read/Write Preamplifiers(6通道磁阻/薄膜讀/寫(xiě)用前置放大器)
TLS24308 Magnetoresistive/Thin-Film Read/Write Preamplifiers(8通道磁阻/薄膜讀/寫(xiě)用前置放大器)
TLS24310 Magnetoresistive/Thin-Film Read/Write Preamplifiers(10通道磁阻/薄膜讀/寫(xiě)用前置放大器)
TLS24318 Magnetoresistive/Thin-Film Read/Write Preamplifiers(8通道磁阻/薄膜讀/寫(xiě)用前置放大器)
TLS24320 Magnetoresistive/Thin-Film Read/Write Preamplifiers(10通道磁阻/薄膜讀/寫(xiě)用前置放大器)
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