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MK1714-02RTR 데이터시트 PDF




Integrated Circuit Systems에서 제조한 전자 부품 MK1714-02RTR은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 MK1714-02RTR 기능
기능 Spread Spectrum Multiplier Clock
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MK1714-02RTR 데이터시트, 핀배열, 회로
MK1714-02
Spread Spectrum Multiplier Clock
Description
The MK1714-02 is a low cost, high performance
clock synthesizer with selectable multipliers and
spread amounts (percentages), designed to
generate high frequency clocks with low EMI.
Using analog/digital Phase-Locked Loop (PLL)
techniques, the device accepts an inexpensive,
fundamental mode, parallel resonant crystal, or a
clock input to produce a spread, or dithered,
output, thereby reducing the frequency amplitude
peaks by several dB. The OE pin puts both outputs
into a high impedance state for board level testing.
The PD# pin powers down the entire chip, and the
outputs are held low.
Features
• Packaged in 20 pin tiny SSOP (QSOP)
• Operating VDD of 3.3 V or 5 V
• Multiplier modes of x1, x2, x3, x4, x5, and x6
• Inexpensive 10-25 MHz crystal, or clock input
• OE pin tri-states the outputs for testing
• Power down pin stops the outputs low
• Selectable frequency spread
• Spread can be turned on or off
• Duty cycle of 40/60
• Advanced, low power CMOS process
• Industrial temperature range available
Block Diagram
VDD GND
S4:0
PD
Low EMI
Enable
Input crystal
or clock
X1
X2
5
Crystal
Oscillator
PLL Clock
Multiplier and
Spread
Spectrum
Circuitry
Output
Buffer
Output
Buffer
Clock Out
REF
XSEL
OE (both outputs)
MDS 1714-02 C
1
Revision 120400
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408) 295-9800tel • www.icst.com




MK1714-02RTR pdf, 반도체, 판매, 대치품
MK1714-02
Spread Spectrum Multiplier Clock
Electrical Specifications
Parameter
Conditions
ABSOLUTE MAXIMUM RATINGS (note 1)
Minimum Typical Maximum Units
Supply voltage, VDD
Referenced to GND
7V
Inputs and Clock Outputs
Referenced to GND
-0.5
VDD+0.5 V
Ambient Operating Temperature
0 70 °C
MK1714-02RI only
-40
85 °C
Soldering Temperature
Max of 10 seconds
260 °C
Storage temperature
-65
DC CHARACTERISTICS (VDD = 3.3V or 5V unless noted)
150 °C
Operating Voltage, VDD
3.0 5.5 V
Input High Voltage, VIH, X1/ICLK only
Clock input
VDD/2 + 1 VDD/2
V
Input Low Voltage, VIL, X1/ICLK only
Clock input
VDD/2 VDD/2 - 1 V
Input High Voltage, VIH
Select inputs, OE, PD
2
V
Input Low Voltage, VIL
Select inputs, OE, PD
0.8 V
Output High Voltage, VOH
VDD=3.3V, IOH=-8mA 2.4
V
Output Low Voltage, VOL
VDD=3.3V, IOL=8mA
0.4 V
Output High Voltage, VOH, VDD = 3.3 or 5V IOH=-8mA
VDD-0.4
V
Operating Supply Current, IDD, at 5V
No Load, note 2
40 mA
Operating Supply Current, IDD, at 3.3V
No Load, note 2
26 mA
Short Circuit Current, VDD = 3.3
Each output
±50 mA
Input Capacitance
Except X1, X2
7 pF
Internal Pull-up or Pull-down Resistor
Except X1
AC CHARACTERISTICS (VDD = 3.3V or 5V unless noted)
500
k
Input Crystal Frequency
10 25 MHz
Input Clock Frequency
See page 3
10
150 MHz
Output Clock Rise Time
0.8 to 2.0V, no load
1.5 ns
Output Clock Fall Time
2.0 to 0.8V, no load
1.5 ns
Output Clock Duty Cycle
At VDD/2
40 50 60 %
One Sigma Jitter, CLK
40 ps
Absolute Jitter, CLK
±160
ps
Notes: 1. Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage to the device. Prolonged
exposure to levels above the operating limits but below the Absolute Maximums may affect device reliability.
2. Multiplier of x1, all clocks at highest frequencies.
External Components
The MK1714 requires a minimum number of external components for proper operation. Decoupling
capacitors of 0.01µF should be connected between VDD and GND (on pins 4 and 7), as close to the chip
as possible. A series termination resistor of 33 may be used for each clock output. The crystal must be
connected as close to the chip as possible. The crystal should be a fundamental mode and parallel resonant.
If accurate tuning is required, crystal capacitors should be connected from pins X1 to ground and X2 to
ground. The value of these capacitors is given by the following equation, where CL is the crystal load
capacitance: Crystal caps (pF) = (CL-6) x 2. So for a crystal with 20pF load capacitance, two 28 pF caps
should be used. If a clock input is used, drive it into X1 and leave X2 unconnected.
MDS 1714-02 C
4
Revision 120400
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408) 295-9800tel • www.icst.com

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MK1714-02RTR

Spread Spectrum Multiplier Clock

Integrated Circuit Systems
Integrated Circuit Systems

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