參數(shù)資料
型號(hào)： 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(yè)數(shù)： 2/31頁(yè)
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
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.
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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