AUDIO CLOCK SYNTHESIZER MK2703 low-cost, low-jitter, high-perform

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AUDIO CLOCK SYNTHESIZER MK2703 low-cost, low-jitter, high-perform

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MK2703
AUDIO CLOCK SYNTHESIZER
MK2703 low-cost, low-jitter, high-performance clock synthesizer designed replace oscillators circuits set-top multimedia systems. Using ICS' patented analog Phase Locked Loop (PLL) techniques, device uses crystal clock input produce buffered reference clock selectable audio clock. manufactures largest variety Set-Top multimedia clock synthesizers applications. Consult eliminate VCXOs, crystals oscillators from your board.
Features
Packaged 8-pin SOIC Available (lead) free package Uses inexpensive, fundamental mode crystal
clock
Supports MPEG sampling rates kHz, 44.1 kHz,
kHz,
Patented zero synthesis error clocks frequencies frequency locked Advanced, power, sub-micron CMOS process Operating voltage Industrial temperature version available
Block Diagram
S1:0
Clock Synthesis Control Circuitry
Crystal Oscillator
Audio Clock
crystal clock input
Capacitors required crystal tuning
2703
Race Stre 5126
Revision 121904 97-12
MK2703 AUDIO CLOCK SYNTHESIZER
Assignment
AUDIO CLOCK OUTPUT SELECT TABLE
(MHz) 8.192 11.2896 12.288 24.576
Key: Connect directly ground 8-pin (150 mil) SOIC Connect directly
Descriptions
Number Name
Type
Power Power Output Output Input Input Connect +3.3 Connect ground.
Crystal Connection. Connect fundamental crystal clock.
buffered reference clock output. Audio clock output table above. Audio clock frequency select input Determines output table above. Internal pull-up resistor. Audio clock frequency select input Determines output table above. Internal pull-up resistor. Crystal connection crystal, leave unconnected clock output.
External Components
Decoupling Capacitor
with high-performance mixed-signal MK2703 must isolated from system power supply noise perform optimally. decoupling capacitor 0.01µF must connected between pins must connected close MK2703 minimize lead inductance. external power supply filtering required MK2703.
Series Termination Resistor
terminating resistor used next clock outputs trace lengths over inch.
Crystal Load Capacitors
total on-chip capacitance approximately parallel resonant, fundamental mode, crystal should used. device crystal connections should include pads small capacitors from ground from ground. These capacitors used adjust stray capacitance board
2703 grated Circuit Systems
Street, Jose, 9512
Revision 121904
MK2703 AUDIO CLOCK SYNTHESIZER
match nominally required crystal load capacitance. Because load capacitance only increased this trimming process, important keep stray capacitance minimum using very short traces (and vias) between crystal device. Crystal capacitors, needed, must connected from each pins ground.
value these crystal caps should equal pF)*2. this equation, crystal load capacitance Example: crystal with load capacitance, each crystal capacitor would [(18-16)
Absolute Maximum Ratings
Stresses above ratings listed below cause permanent damage MK2703. 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, MK2703S (commercial) Ambient Operating Temperature, MK2703SI (industrial) Storage Temperature Soldering Temperature -0.5
Rating
-0.5 VDD+0.5 +70°C +85°C +150°C 260°C
Recommended Operation Conditions
Parameter
Ambient Operating Temperature Power Supply Voltage (measured respect GND)
Min.
+3.13
Typ.
Max.
+5.50
Units
Electrical Characteristics
VDD=3.3 Ambient temperature +85°C, unless stated otherwise
Parameter
Operating Voltage Input High Voltage Input Voltage Input High Voltage Input Voltage
Symbol
Conditions
only Note only Note pins pins
Min.
3.13
Typ.
Max.
5.50
Units
(VDD/2)+1 VDD/2 VDD/2 (VDD/2)-1
2703 grated Circuit Systems
Street, Jose, 9512
Revision 121904
MK2703 AUDIO CLOCK SYNTHESIZER
Parameter
Output High Voltage Output Voltage Output High Voltage, CMOS level Operating Supply Current Short Circuit Current Input Capacitance Nominal Output Impedance Frequency Synthesis Error Internal Pull-up Resistor
Symbol
Conditions
load output pins Clocks
Min.
Typ.
Max.
Units
VDD-0.4
RPUP
pins
Note CMOS level input. Nominal trigger point VDD/2 operation.
Electrical Characteristics
±5%, Ambient Temperature +85° unless stated otherwise
Parameter
Input Crystal Clock Frequency Output Clock Rise Time Output Clock Fall Time Clock Stabilization Time after Power-up Changing Frequency Setting Output Clock Duty Cycle Maximum Absolute Jitter, short term Note Measured with load.
Symbol
Conditions
Note Note
Min.
Typ.
Max.
Units
VDD/2, Note Deviation from mean
±190
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
2703 grated Circuit Systems
Street, Jose, 9512
Revision 121904
MK2703 AUDIO CLOCK SYNTHESIZER
Marking Diagram MK2703S
Notes: ###### number. YYWW last digits year week number that part assembled.
µCLOCK MK2703S YYWW
Bottom Marking: Line ###### Line Origin
Bottom mark denotes country origin.
Marking Diagram MK2703SLF
µCLOCK MK2703SL YYWW
Bottom Marking: Line ###### Line Origin
Marking Diagram MK2703SI
MK2703I ###### YYWW$$
Bottom Marking: Origin
Marking Diagram MK2703SILF
MK2703IL ###### YYWW$$
Bottom Marking: Origin
2703 grated Circuit Systems
Street, Jose, 9512
Revision 121904
MK2703 AUDIO CLOCK SYNTHESIZER
Package Outline Package Dimensions (8-pin SOIC, Mil. Narrow Body)
Package dimensions kept current with JEDEC Publication
Millimeters Symbol
INDEX AREA
Inches
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
MK2703S MK2703STR MK2703SLF MK2703SLFTR MK2703SI MK2703SITR MK2703SILF MK2703SILFTR
Marking
page page page page
Shipping Packaging
Tubes Tape Reel Tubes Tape Reel Tubes Tape Reel Tubes Tape Reel
Package
8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC 8-pin SOIC
Temperature
+70° +70° +70° +70° +85° +85° +85° +85°
"LF" denotes (lead) free package. 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.
2703 grated Circuit Systems
Street, Jose, 9512
Revision 121904

AUDIO CLOCK SYNTHESIZER MK2703 low-cost, low-jitter, high-perform

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