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PDF MK1709 Data sheet ( Hoja de datos )
| Número de pieza | MK1709 | |
| Descripción | Low EMI Clock Generator | |
| Fabricantes | Integrated Circuit Systems | |
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MK1709
Low EMI Clock Generator
Description
The MK1709 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 MK1709 offers centered 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.
Block Diagram
Features
• Packaged in 8-pin SOIC (MK1709S) and in 8-pin
TSSOP (MK1709AG)
• 8-pin TSSOP available in lead (Pb) free package
• Provides a spread spectrum output clock
• Supports 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
• Advanced, low-power CMOS process
VDD
S0
S1
S2
Low EMI Enable
ICLK
Input
Buffer
PLL Clock
Synthesis
and Spread
Spectrum
Circuitry
Clock Out
GND
MDS 1709 D
1
Revision 031204
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
1 page  
MK1709
Low EMI Clock Generator
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the MK1709. 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. Typical values are at 25°C.
Item
Supply Voltage, VDD (referenced to GND)
All Inputs and Outputs (referenced to GND)
Ambient Operating Temperature
Storage Temperature
Soldering Temperature (maximum of 10 seconds)
Rating
5V
-0.5 V to VDD+0.5 V
0 to +85°C
-65 to +150°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
+3.6
Units
°C
V
DC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V, Ambient Temperature 0 to +85°C
Parameter
Symbol
Conditions
Min. Typ. Max. Units
Operating Voltage
VDD
3.135
3.465
V
Supply Current (MK1709S)
IDD No load, at 3.3 V
20 mA
Supply Current (MK1709AG)
IDD No load, 50M
13 µA
IDD No load, 150M
23
Input High Voltage (ICLK)
VIH
(VDD/2)+1 VDD/2
V
Input High Voltage (S1, S0)
VIH
VDD-0.5
V
Input High Voltage (other inputs) VIH
2V
Input Low Voltage (ICLK)
VIL
VDD/2 (VDD/2)-1 V
Input Low Voltage
VIL
0.5 V
Output High Voltage (CMOS)
VOH IOH = -4mA
VDD-0.4
V
Output High Voltage
VOH IOH = -12 mA
2.4
V
Output Low Voltage
VOL IOL = 12 mA
0.4 V
Input Capacitance
CIN S0, S1, S2, LEE pins
7
pF
MDS 1709 D
5
Revision 031204
Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet MK1709.PDF ] | |
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