MK1714-02 cost, high performance clock synthesizer with selectable mul
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MK1714-02 Spread Spectrum Multiplier Clock
MK1714-02 cost, high performance clock synthesizer with selectable multipliers spread amounts (percentages), designed generate high frequency clocks with EMI. Using analog/digital Phase-Locked Loop (PLL) techniques, device accepts inexpensive, fundamental mode, parallel resonant crystal, clock input produce spread, dithered, output, thereby reducing frequency amplitude peaks several puts both outputs into high impedance state board level testing. powers down entire chip, outputs held low.
Packaged tiny SSOP (QSOP) Operating Multiplier modes Inexpensive 10-25 crystal, clock input tri-states outputs testing Power down stops outputs Selectable frequency spread Spread turned Duty cycle 40/60 Advanced, power CMOS process Industrial temperature range available
Block Diagram
Clock Multiplier Spread Spectrum Circuitry
S4:0 Enable Input crystal clock
Output Buffer
Clock
Crystal Oscillator
Output Buffer
XSEL
(both outputs)
Revision 120400 Integrated Circuit Systems, Inc. Race Street Jose (408) 295-9800tel www.icst.com
1714-02
MK1714-02 Spread Spectrum Multiplier Clock
Assignment
X1/ICLK XSEL
pin.150 SSOP (QSOP) Descriptions
Name X1/ICLK XSEL
Type I(D)
Description Crystal connection. Connect parallel mode crystal. Leave open clock. Crystal connection. Connect parallel mode crystal, clock. Connect VDD. Must same value other VDD. Connect VDD. Must same value other VDD. Decouple with Select number Determines multiplier spread amount table following page. Select number Determines multiplier spread amount table following page. Connect ground. Connect ground. Select number Determines multiplier spread amount table following page. Clock output which depends input, multiplier spread amount table page Connect crystal input, input. Enable. Turns Spread spectrum when high. Connect ground. Select number Determines multiplier spread amount table following page. Connect. Select number Determines multiplier spread amount table following page. Connect ground. Power Down. Turns chip when low. Outputs stop low. Output Enable. Tri-states outputs when low. Reference clock output from crystal oscillator.
Key: Input with internal pull-up; I(D) Input with internal pull-down; XO/XI crystal connections; output; power supply connection 1714-02 Revision 120400 Integrated Circuit Systems, Inc. Race Street Jose (408) 295-9800tel www.icst.com
MK1714-02 Spread Spectrum Multiplier Clock
Clock Output Select Table MHz) Input Range 40-80 60-120 40-80 80-150 10-30 20-60 10-25 20-60 20-30 40-75 40-100 40-75 20-40 20-60 10-20 10-30 20-37.5 20-40 10-30 20-30 5-20 20-50 20-37.5 80-150 10-25 10-20 10-20 20-50 10-25 10-20 10-20 10-30 Multiplier Output Range Direction Amount 3.3/5V 40-80 ±0.75 Both 60-120 +0.25, -0.75 Both 40-80 ±1.25 Both 80-150 ±0.75 Both 20-60 ±0.75 Both 40-120 ±0.5 Both 20-50 +0.25, -1.5 Both 40-120 +0.5, -1.0 Both 60-90 ±0.5 Both 80-150 ±0.75 Both 40-100 +0.25, -1.5 Both 80-150 +0.25, -1.5 Both 20-40 +0.5, -2.0 20-60 +0.25, -1.5 Both 10-20 +0.5, -2.0 Both 10-30 +0.25, -1.5 Both 80-150 +0.25, -1.25 Both 60-120 +0.25, -1.5 Both 10-30 ±0.75 Both 20-30 -0.5 Both 10-40 +0.25, -2.25 60-150 -0.25, -2.25 Both 80-150 ±0.75 Both 80-150 +0.25, -1.25 Both 40-100 ±0.75 Both 50-100 ±0.75 Both 60-120 ±0.75 Both 20-50 ±0.75 Both 40-100 +0.25, -1.5 Both 50-100 +0.25, -1.25 Both 60-120 -1.5 Both 10-30 ±0.75 Both
S4:S0, connect GND, connect VDD. Direction: C=Center spread, D=Down spread, DC=Down+Center spread. Amount equals spread amount. output clock spread down lowest frequency 39.60 MHz. Contact with your exact output frequency details spread direction amount.
Revision 120400 Integrated Circuit Systems, Inc. Race Street Jose (408) 295-9800tel www.icst.com
1714-02
MK1714-02 Spread Spectrum Multiplier Clock
Electrical Specifications
Parameter Supply voltage, Inputs Clock Outputs Ambient Operating Temperature Soldering Temperature Storage temperature Operating Voltage, Input High Voltage, VIH, X1/ICLK only Input Voltage, VIL, X1/ICLK only Input High Voltage, Input Voltage, Output High Voltage, Output Voltage, Output High Voltage, VOH, Operating Supply Current, IDD, Operating Supply Current, IDD, 3.3V Short Circuit Current, Input Capacitance Internal Pull-up Pull-down Resistor Conditions Referenced Referenced MK1714-02RI only seconds Minimum Typical Maximum VDD+0.5 VDD/2 VDD/2 VDD/2 Units
ABSOLUTE MAXIMUM RATINGS (note
-0.5 Clock input VDD/2 Clock input Select inputs, Select inputs, VDD=3.3V, IOH=-8mA VDD=3.3V, IOL=8mA IOH=-8mA VDD-0.4 Load, note Load, note Each output Except Except
CHARACTERISTICS (VDD 3.3V unless noted)
CHARACTERISTICS (VDD 3.3V unless noted)
Input Crystal Frequency Input Clock Frequency page Output Clock Rise Time 2.0V, load Output Clock Fall Time 0.8V, load Output Clock Duty Cycle VDD/2 Sigma Jitter, Absolute Jitter, ±160 Notes: Stresses beyond those listed under Absolute Maximum Ratings could cause permanent damage device. Prolonged exposure levels above operating limits below Absolute Maximums affect device reliability. Multiplier clocks highest frequencies.
External Components
MK1714 requires minimum number external components proper operation. Decoupling capacitors 0.01µF should connected between pins close chip possible. series termination resistor used each clock output. crystal must connected close chip possible. crystal should fundamental mode parallel resonant. accurate tuning required, crystal capacitors should connected from pins ground ground. value these capacitors given following equation, where crystal load capacitance: Crystal caps (pF) crystal with 20pF load capacitance, caps should used. clock input used, drive into leave unconnected. 1714-02 Revision 120400 Integrated Circuit Systems, Inc. Race Street Jose (408) 295-9800tel www.icst.com
MK1714-02 Spread Spectrum Multiplier Clock
Package Outline Package Dimensions (For current dimensional specifications, JEDEC Publication 95.)
SSOP
Symbol Inches 0.053 0.069 0.004 0.010 0.008 0.012 0.007 0.010 0.337 0.344 .025 0.228 0.244 0.150 0.157 0.016 0.050 Millimeters 1.35 1.75 0.10 0.25 0.20 0.30 0.19 0.25 8.56 8.74 0.65 5.79 6.20 3.81 3.99 0.41 1.27
INDEX AREA
Ordering Information
Part/Order Number MK1714-02R MK1714-02RTR MK1714-02RI MK1714-02RITR Marking MK1714-02R MK1714-02R MK1714-02RI MK1714-02RI Package SSOP SSOP SSOP SSOP Shipping Tubes Tape Reel Tubes Tape Reel Temperature
While information presented herein been checked both accuracy reliability, Integrated Circuit Systems, Incorporated (ICS) assumes responsibility either infringement patents other rights third parties, which would result from use. other circuits, patents, licenses implied. This product intended normal commercial applications. other applications such those requiring extended temperature range, high reliability, other extraordinary environmental requirements recommended without additional processing ICS. reserves right change circuitry specifications without notice. does authorize warrant product life support devices critical medical instruments.
Revision 120400 Integrated Circuit Systems, Inc. Race Street Jose (408) 295-9800tel www.icst.com
1714-02
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