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參數(shù)資料
| 型號： | VT98501S1 |
| 廠商： | Vaishali Semiconductor |
| 英文描述： | 3.3V Low Phase Noise Clock Multiplier |
| 中文描述： | 3.3V的低相位噪聲時鐘乘法器 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 77K |
| 代理商： | VT98501S1 |
2001-03-05
Vaishali Semiconductor 1300 White Oaks Road, Ste. 200 Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063
Page 1
MDST-0009-00
Applications
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Oscillator Replacement
General Description
The VT98501 is a 3.3V CMOS, clock multiplier integrated circuit. The device provides an excellent quality
high frequency output clock from a lower frequency crystal or clock input. Tri-level selection inputs S0 and
S1 are used to select any one of nine multipliers, stored in the on-board ROM, and apply it to the input to
produce the desired output. The resulting output includes many commonly used frequencies up to 160
MHz. Phase Locked Loop (PLL) technology allows the device to use an input signal from an inexpensive
crystal.
When Output Enable (OE) is low, the clock output is in high impedance state.
The VT98501, when used with an inexpensive crystal, provides a cost-effective clock source for most
electronic systems.
Figure 1. Functional Block Diagram
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LCD monitor clock source
AAdvance Information
VT98501
3.3Low Phase Noise Clock Multiplier
Features
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Low phase noise
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Zero ppm multiplication error
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Input clock frequency 2 - 50 MHz.
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Input crystal frequency 5 – 27 MHz
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Output clock frequencies up to 160 MHz.
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5V tolerant inputs and output
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=
=
=
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Exceptionally low jitter: 25 ps one sigma
Fully Compatible with all popular CPUs
Duty Cycle of 45/55 up to 160 MHz.
25mA drive capability at TTL levels
High-Z output for board level testing
X1/ICLK
VDD
S0
S1
Output Enable
Clock or
Xtal
input
PLL
Clock
Multiplier
&
ROM
Output
Buffer
Xtal.
Osc.
GND
X2
Optional
caps
CLK
Figure 2. Pin Assignment
1
2
3
4
8
7
6
5
X1/ICLK
VDD
GND
S1
X2
OE
S0
CLK
8-pin SOIC
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| VT98501S1X | 制造商:VAISH 制造商全稱:VAISH 功能描述:3.3V Low Phase Noise Clock Multiplier |
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| VT98521/DW | 制造商:VAISH 制造商全稱:VAISH 功能描述:3.3V Clock Multiplier |
| VT98521M | 制造商:VAISH 制造商全稱:VAISH 功能描述:3.3V Clock Multiplier |
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