MK1704A upgraded version MK1704 recommended designs. offers more reduc
|
|
|
Top Searches for this datasheet
MK1704A
MK1704A upgraded version MK1704 recommended designs. offers more reduction frequency amplitude peaks will support frequencies MHz. MK1704A generates output clock from clock input. part designed dither interface clock other clocks flat panel graphics controllers. MK1704A uses ICS' proprietary mixture analog digital Phase Locked Loop (PLL) technology synthesize frequency. also uses ICS' patented technique spread frequency spectrum output, thereby reducing frequency amplitude peaks several offers many other clocks computers computer peripherals. Consult when need remove crystals oscillators from your board.
Features
SOIC package Provides spread spectrum output clock Supports leading flat panel controllers Accepts clock input, provides same frequency dithered output MHz, well (SVGA) (XVGA) clocks
Optimized higher resolutions that require Peak reduction typical 19th
harmonics
feature disabled Operating voltage 3.3V Advanced, power CMOS process MK1714-01 multiplier with which operate from crystal
Block Diagram
S1:0 Enable
Clock Synthesis Spread Spectrum Circuitry Crystal Oscillator
Crystal Clock
1704A Integrated Circuit Systems, Inc.
Race Street, Jose, 95126
Revision 031003 (408) 295-9800
www.icst.com
MK1704A
Assignment
ICLK
Output Clock Selection Table
Input Input Input Min. Nom. Max. Mult.
Freq. spread
+0.5, -1.5% +0.5, -1.5% Down 2.5% +0.5, -1.5%
(150 mil) SOIC
Descriptions
Number
Name
ICLK
Type
Power Power Output Input Input Input Connect +3.3V +5V. Connect ground.
Connect clock input shown table above.
Clock output equal input frequency. enable. Turns spread spectrum when high. Internal pull-up. Frequency select input. Selects input/output clock range table above. Internal pull-up. Frequency select input. Selects input/output clock range table above. Internal pull-up. connect. connect anything this pin.
External Components
Series Termination Resistor
Clock output traces over inch should series termination. series terminate trace commonly used trace impedance), place resistor series with clock line, close clock output possible. nominal impedance clock output 0.01µF decoupling capacitor should mounted component side board close possible. vias should used between decoupling capacitor pin. trace should kept short possible, should trace ground via. Distance ferrite bead bulk decoupling from device less critical. external crystal should mounted just next device with short traces. traces should routed next each other with minimum spaces, instead they should separated away from other traces. minimize series termination resistor, needed, should placed close clock output.
Decoupling Capacitor
decoupling capacitor 0.01µF must connected between pins
Layout Recommendations
optimum device performance lowest output phase noise, following guidelines should observed.
1704A Integrated Circuit Systems, Inc.
Race Street, Jose, 95126
Revision 031003 (408) 295-9800
www.icst.com
MK1704A
optimum layout with components same side board, minimizing vias through other signal layers. Other signal traces should routed
away from MK1704A. This includes signal traces just underneath device, layers adjacent ground plane layer used device.
Powerup Considerations
insure proper operation spread spectrum generation circuit, some precautions must taken implementation MK1704A. input signal should applied ICLK until stable. This requirement easily operating MK1704A ICLK source from same power supply. should enabled (taken high) until after power supplies input clock stable. This requirement direct control system logic; example, "power good" signal. Another solution leave unconnected anything 0.01 capacitor ground. pullup resistor will charge capacitor provide approximately millisecond delay until spread spectrum enabled. input frequency changed during operation, disable spread spectrum until input clock stabilizes frequency. should disabled minimum.
Absolute Maximum Ratings
Stresses above ratings listed below cause permanent damage MK1704A. These ratings, which standard values commercially rated parts, stress ratings only. Functional operation device these other conditions above those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect product reliability. Electrical parameters guaranteed only over recommended operating temperature range.
Item
Supply Voltage, Inputs Outputs Ambient Operating Temperature Storage Temperature Junction Temperature Soldering Temperature
Rating
-0.5V VDD+0.5V +70°C +150°C 175°C 260°C
Recommended Operation Conditions
Parameter
Ambient Operating Temperature Power Supply Voltage (measured respect GND)
Min.
+3.0
Typ.
Max.
+5.5
Units
1704A Integrated Circuit Systems, Inc.
Race Street, Jose, 95126
Revision 031003 (408) 295-9800
www.icst.com
MK1704A
Electrical Characteristics
Unless stated otherwise, Ambient Temperature +70°C
Parameter
Operating Voltage Supply Current Input High Voltage Input Voltage Output High Voltage Output High Voltage Output Voltage Input Capacitance Nominal Output Impedance Internal Pull-up Resistor
Symbol
ZOUT
Conditions
load, 3.3V load, Clock input Clock input only
Min.
Typ.
Max.
Units
(VDD/2)+1 VDD-0.4
VDD/2 VDD/2 (VDD/2)-1
Electrical Characteristics
Unless stated otherwise, Ambient Temperature +70°
Parameter
Input Frequency
Symbol
Conditions
S1=0, S0=0 S1-0, S0=1 S1=1, S0=0 S1=1, S0=1
Min.
Typ.
Max. Units
Input Clock Duty Cycle Output Rise Time Output Fall Time Output Clock Duty Cycle Output Clock Frequency Variation from Mean Peak Frequency Reduction Note Measured with 15pF load
Time above VDD/2 2.0V, Note 0.8V, Note Time above 1.5V
1-2.5
19th harmonics
10-16
Thermal Characteristics
Parameter
Thermal Resistance Junction Ambient
Symbol
Conditions
Still flow flow
Min.
Typ.
Max. Units
°C/W °C/W °C/W °C/W
Thermal Resistance Junction Case
1704A Integrated Circuit Systems, Inc.
Race Street, Jose, 95126
Revision 031003 (408) 295-9800
www.icst.com
MK1704A
Package Outline Package Dimensions SOIC, Mil. Body)
Package dimensions kept current with JEDEC Publication
Millimeters Symbol
Inches
INDEX AREA
1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 4.80 5.00 3.80 4.00 1.27 BASIC 5.80 6.20 0.25 0.50 0.40 1.27
.0532 .0688 .0040 .0098 .013 .020 .0075 .0098 .1890 .1968 .1497 .1574 0.050 BASIC .2284 .2440 .010 .020 .016 .050
SEATING PLANE
(.004)
Ordering Information
Part Order Number Marking (for both)
MK1704A MK1704ATR MK1704A MK1704A
Shipping packaging
Tubes Tape Reel
Package
SOIC SOIC
Temperature
+70° +70°
While information presented herein been checked both accuracy reliability, Integrated Circuit Systems (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.
1704A Integrated Circuit Systems, Inc.
Race Street, Jose, 95126
Revision 031003 (408) 295-9800
www.icst.com
Other recent searches
XBMR81D - XBMR81D XBMR81D Datasheet
RCV7044AN - RCV7044AN RCV7044AN Datasheet
RCV7054AN - RCV7054AN RCV7054AN Datasheet
GBU4005 - GBU4005 GBU4005 Datasheet
GBU410 - GBU410 GBU410 Datasheet
BAT74 - BAT74 BAT74 Datasheet
ACSM-2066 - ACSM-2066 ACSM-2066 Datasheet
1691770000 - 1691770000 1691770000 Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
