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参数资料
| 型号： | K170 |
| 厂商： | TOKO Inc. |
| 元件分类： | 运动控制电子 |
| 英文描述： | Low Voltage Operational Amplifier |
| 中文描述： | 低电压运算放大器 |
| 文件页数： | 1/4页 |
| 文件大小： | 44K |
| 代理商： | K170 |
PLL Clock
Synthesis and
Spread Spectrum
Circuitry
MK1704A
Low EMI Clock Generator
MDS 1704A B
MicroClock Division of ICS 525 Race Street San Jose CA 95126(408)295-9800tel(408)295-9818fax
1
Revision 062599
Printed 11/15/00
ICRO
C
LOC K
The MK1704A is an upgraded version of the
MK1704 and is recommended for all new designs.
It offers more reduction in the frequency
amplitude peaks, and will support frequencies up
to 140 MHz.
The MK1704A generates a low EMI output clock
from a clock input. The part is designed to dither
the LCD interface clock or other clocks for flat
panel graphics controllers. The MK1704A uses
ICS/MicroClock’s proprietary mixture of analog
and digital Phase-Locked Loop (PLL) technology
to synthesize the frequency, and our patented
technique to spread the frequency spectrum of the
output, thereby reducing the frequency amplitude
peaks by several dB.
We offer many other clocks for computers and
computer peripherals. Consult us when you need
to remove crystals and oscillators from your board.
Block Diagram
Description
Features
Packaged in 8 pin SOIC
Provides a spread spectrum output clock
Supports leading flat panel controllers
Accepts a clock input, provides same frequency
dithered output
Optimized for higher resolutions that require up
to 140 MHz, as well as 40 MHz (SVGA) and
65 MHz (XVGA) clocks
Peak reduction by 7dB - 14 dB typical on 3rd-
19th odd harmonics
Low EMI feature can be disabled
3.3 V or 5 V ±10% supply voltage
Advanced, low power CMOS process
See the MK1714-01 for a multiplier with low
EMI which can operate from a crystal
Crystal
Oscillator
VDD GND
S1
Output
Buffer
Clock Out
Input Clock
Low EMI
Enable
S0
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