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부품번호 | MK1707 기능 |
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기능 | Low EMI Clock Generator | ||
제조업체 | Integrated Circuit Systems | ||
로고 | |||
전체 6 페이지수
MK1707
Low EMI Clock Generator
Description
The MK1707 generates a low EMI output clock from a
clock input. The part is designed to dither the LCD
interface clock for flat panel graphics controllers. The
device uses ICS’ proprietary mix of analog and digital
Phase Locked Loop (PLL) technology to spread the
frequency spectrum of the output, thereby reducing the
frequency amplitude peaks by several dB.
The MK1707 offers both centered and down spread
from a high speed clock input. Refer to the
MK1714-01/02 for a crystal input and the widest
selection of input frequencies and multipliers.
ICS offers many other clocks for computers and
computer peripherals. Consult us when you need to
remove crystals and oscillators from your board.
Features
• Packaged in 8-pin SOIC
• Available in Pb-free package
• Industrial temperature range available
• Provides a spread spectrum output clock
• Supports ATI’s flat panel controllers
• Guaranteed to +85°C operation
• Accepts a clock input, provides same frequency
dithered output
• Good for all VGA modes from 80 to 167 MHz
• Peak reduction by 7dB - 14dB typical on 3rd - 19th
odd harmonics
• Low EMI feature can be disabled
• Includes Power-down
• Operating voltage of 3.3 V or 5 V
• Advanced, low-power CMOS process
Block Diagram
VDD
2
S1:0
Spread Direction
Low EMI Enable
ICLK
Input
Buffer
PLL Clock
Synthesis
and Spread
Spectrum
Circuitry
Clock Out
GND
MDS 1707 G
1
Revision 032204
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
MK1707
Low EMI Clock Generator
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the MK1707. These ratings,
which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of
the device at these or any other conditions above those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can
affect product reliability. Electrical parameters are guaranteed only over the recommended operating
temperature range.
Item
Supply Voltage, VDD
All Inputs and Outputs
Ambient Operating Temperature, Commercial
Ambient Operating Temperature, Industrial
Storage Temperature
Junction Temperature
Soldering Temperature
Rating
7V
-0.5 V to VDD+0.5 V
0 to +85°C
-40 to +85°C
-65 to +150°C
125°C
260°C
Recommended Operation Conditions
Parameter
Ambient Operating Temperature
Power Supply Voltage (measured in respect to GND)
Min.
0
+3.135
Typ.
Max.
+85
+5.5
Units
°C
V
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V, Ambient Temperature 0 to +85°C
Parameter
Symbol
Conditions
Min.
Operating Voltage
VDD
3.135
Supply Current
IDD No load, at 3.3 V
IDD No load, at 5 V
IDDPD S0=S1=SD=1
Input High Voltage
Input Low Voltage
Input High Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Output High Voltage
Output Low Voltage
Input Capacitance
VIH ICLK
(VDD/2) + 1
VIL ICLK
VIH S1, S0
VDD-0.5
VIH other inputs
2
VIL S0, S1, SD, LEE pins
VOH CMOS, IOH = -4 mA
VDD-0.4
VOH IOH = -12 mA
2.4
VOL IOL = -12 mA
CIN S0, S1, SD, LEE pins
Typ.
20
31
60
VDD/2
VDD/2
5
Max.
5.5
(VDD/2) - 1
0.5
0.4
Units
V
mA
mA
µA
V
V
V
V
V
V
V
V
pF
MDS 1707 G
4
Revision 032204
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
4페이지 | |||
구 성 | 총 6 페이지수 | ||
다운로드 | [ MK1707.PDF 데이터시트 ] |
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