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參數(shù)資料
| 型號： | MB881822BWQN-G-JN-EFE1 |
| 廠商： | FUJITSU LTD |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 100 MHz, OTHER CLOCK GENERATOR, PQCC24 |
| 封裝： | 2.50 X 3.50 MM, 0.80 MM HEIGHT, 0.40 MM PITCH, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 31/32頁 |
| 文件大?。?/td> | 938K |
| 代理商： | MB881822BWQN-G-JN-EFE1 |
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MB88182
8
DS04-29138-5E
■ HANDLING DEVICES
(1) Preventing latch-up
A latch-up may occur in a CMOS IC if a voltage greater than power supply voltage or a voltage less than GND
is applied to an input or output pin, or if an above-rating voltage is applied between power supply and GND.
A latch-up, if it occurs, significantly increases the power-supply current and may cause thermal destruction of
an element. When you use a CMOS IC, be very careful not to exceed the absolute maximum rating.
(2) Handling control input pins
The input pins (ENS, XPD1, XPD2, XPD3, XPD4, and XPDREF) of this device should be high or low level
preventing the pins from being undefined by connecting a pull-down or pull-up resistor, or performing level input
by control signals.
The wait time for clock stabilization is needed after turning the power on or when changing the setting of ENS
pin or power down control pins (XPD1, XPD2, XPD3, XPD4, and XPDREF). Please use the clock after the lock-
up time has passed. (The lock-up time varies depending on the setting value to the respective register. Please
confirm the recommended value with the Fujitsu Semiconductor support tool.)
(3) Power supply pins
Ensure that the impedance of the connection from the power supply source to the power supply pins on the
device is as low as possible.
We recommend connecting the electrolytic capacitor (about 10
μF) and the ceramic capacitor (about 0.01 μF)
in parallel between power supply and GND near the device, as a bypass capacitor.
We also recommend inserting a low pass filter less than 3.4 kHz of a cutoff frequency to the power-supply line
of MB88182 for not being affected by the power-supply noise on the customer's system.
The supply voltage to MB88182 is decreased when a resistor is inserted; therefore, please use the resistor less
than 10
Ω in case of inserting a resistor. (An example of recommended combination is 4.7 μF for a capacitance
and 10
Ω for a resistor.)
Example of recommended circuit of low pass filter to remove power-supply noise
MB88182
VCC
4.7
μF
10
Ω
0.1
μF
(Power supply line)
(Bypass capacitor)
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