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參數(shù)資料
| 型號： | TLS21H62-3PW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Read/Write Preamplifier(5V,2通道低噪讀寫前置運放) |
| 中文描述： | 讀/寫前置放大器（5V的，2通道低噪讀寫前置運放） |
| 文件頁數(shù)： | 7/10頁 |
| 文件大?。?/td> | 200K |
| 代理商： | TLS21H62-3PW |
TLS21H62-3PW
5-V THIN-FILM 2-CHANNEL LOW-NOISE READ/WRITE PREAMPLIFIER
SQHS015 – MAY 1996
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
The TLS21H62-3PW preamplifier functions as read amplifiers or write drivers for the selected head and can address
two two-terminal thin-film or MIG recording heads. R/W and CS are connected to internal pullup resistors. An internal
pulldown resistor is connected to HS.
Table 1. Mode Select
MODE SELECT
CS
R/W
Write
0
0
Read
0
1
Idle
1
X
Table 2. Head Select
HS
HEAD
0
0
1
1
write mode
Write mode is selected by taking both CS and R/W low. The head-select (HS) input selects the appropriate head.
In write mode, the circuit acts as a current switch and write current toggles between the X and Y directions of
the head. Write current is toggled on the high-to-low transition of the WDI input. A preceding read or idle mode
initialized the write-data flip-flop to pass write current from the Y side to the X side of the head. During the write
mode, the high output level turns on the diode, which switches the damping resistor into the circuit.
The relationships of WDI and WUS/SE are shown in Figure 1.
WDI
WUS/SE
IX–IY (FF)
Figure 1. Write-Mode Timing Diagram
The value of the write current is given by the following formula:
I
W
K
W
R
WC
50
R
WC
Where:
I
W
= write output current
K
W
= write current constant
IR
WC
= external resistor that connects WCS to GND
P
(1)
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TLS21H62-3PWR | 制造商:Texas Instruments 功能描述: |
| TLS21L62-3PWR | 制造商:Texas Instruments 功能描述: |
| TLS2200 | 制造商:Brady Corporation 功能描述:TLS 2200 Light Weight 2.75 lbs Handheld Portable Printer 制造商:Brady Corporation 功能描述:LABEL PRINTER, THERMAL TRANSFER, 203DPI; Features:Formatting, Custom Fonts, Memory; For Use With:Bradys LabelMark Software, TLS 2200 Accessories & Labels; Print Resolution:203dpi; Print Width Max:46mm; Size:11.5L x 4.25W x 4"H ;RoHS Compliant: Yes 制造商:Brady Corporation 功能描述:LABELING SYSTEM |
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| TLS2200-AC | 制造商:Brady Corporation 功能描述:120 V AC Adapter 制造商:Brady Corporation 功能描述:AC ADAPTER, EXTERNAL PLUG-IN, 120V; No. of Outputs:1; Output Type:Fixed; Output Voltage:120VAC; Power Supply Mounting:Desktop; Power Supply Output Type:Fixed; Power Supply Type:Plug In External ;RoHS Compliant: Yes |
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