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參數(shù)資料
| 型號(hào)： | CXA1829N |
| 廠商： | Sony Corporation |
| 英文描述： | 8ch. Read/Write Amplifier for Thin Film Heads of Hard Disk Drive |
| 中文描述： | 8通道。讀/寫放大器薄膜磁頭的硬盤驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 12/15頁(yè) |
| 文件大?。?/td> | 264K |
| 代理商： | CXA1829N |
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CXA1829N
Notes on Operation
This IC handles high frequency and high gain signals. Please note the following;
Connect V
CC
decoupling capacitor of approximately 1000 pF near the IC.
Make the grounding area as large as possible.
Short-circuit the X and Y sides of unused head pins or leave them open.
Write data pulse width
Set the pulse width to 10 ns or more at 1.5 V to prevent misoperation.
The WC pin is a constant voltage pin. When noise affects this pin, it creates noise in Write current.
Therefore, locate Rw as close to the IC as possible.
Write-unsafe detection circuit
The WUS detection circuit operates by voltage waveform of head pin.
Fig. 6
Use the IC at T1 > 10 ns for normal operation of the WUS detecting circuit.
Use the IC with V
FB
of 2V or more. If the V
FB
is less than 2V, the write-unsafe detection maximum
frequency may become 1 MHz or more.
Please apply to the reference mentioned on this back cover since the operation range of the write-
unsafe detection circuit is greatly affected by the head inductance, head DC resistance and Write
current.
Use the IC with Ta at 30°C or less in Simultaneous Write mode.
GND
V
TH
V
TH
=2V
T1
1.5V
Write data waveform
Voltage waveform
of head pin
V
FB
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