MK3732-22 low-cost, low-jitter, Volt VCXO designed replace expensive V

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MK3732-22 low-cost, low-jitter, Volt VCXO designed replace expensive V

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BLU-RAY DISC VCXO Description
MK3732-22 low-cost, low-jitter, Volt VCXO designed replace expensive VCXOs. Using advanced clock synthesizer with on-chip Phase-Locked Loops (PLLs), MK3732-22 generates high-quality clock outputs from cost, 13.5 crystal. replace multiple voltage controlled crystal oscillators, saving board space cost. patented on-chip Voltage Controlled Crystal Oscillator accepts input voltage cause output clocks vary ±100 ppm. higher intrinsic VCXO gain MK3732-22 helps compensate reduced pullability quality crystal ideal applications.
MK3732-22 Features
Packaged 20-pin SSOP Available (lead) free package Input frequency 13.5 Multiple output frequencies ohms start-up margin levels tri-states outputs board testing Operating voltage Advanced, low-power CMOS process
Block Diagram
S1:0 ACLK CCLK 13.5 Pullable Crystal Voltage Controlled Crystal Oscillator (all output) PLL/Clock Synthesis Circuitry 13.5 32.11
Optional crystal capacitors.
IDT/ ICSBLU-RAY DISC VCXO
MK3732-22
020906
MK3732-22 BLU-RAY DISC VCXO
VCXO SYNTHESIZER
Assignment
13.5 32.11 ACLK CCLK
AUDIO Output Table
ACLK (MHz) 8.192 11.2896 12.288 18.4323
COMM Output Table
CCLK (MHz) 26.8 24.576
(150 mil) SSOP (QSOP)
Note have internal pull-up resistor.
Descriptions
Number
Name
13.5 32.11 CCLK ACLK
Type
Input Input Power Input Power Power Output Output Output Output Input Output Output Power Power Power Input
Description
Crystal connection. Connect 13.5 fundamental mode pullable crystal. Select ACLK table above. Internal pull-up. Connect +3.3 VCXO voltage input. Zero analog voltage VCXO. Connect +3.3 Connect ground. 13.5 clock output. Output tri-stated when low. clock output. Output tri-stated when low. reference clock output. Output tri-stated when low. 32.11 clock output. Output tri-stated when low. Select CCLK table above. Internal pull-up. Communication clock output. Determined table above. Audio clock output. Determined table above. Connect +3.3 Connect ground. Connect +3.3 Select ACLK table above. Internal pull-up.
IDT/ ICSBLU-RAY DISC VCXO
MK3732-22
020906
MK3732-22 BLU-RAY DISC VCXO
VCXO SYNTHESIZER
Number
Name
Type
Input Power Output Connect +3.3
Description
Output enable. Tri-states output when low. Internal pull-up Crystal connection. Connect 13.5 fundamental mode pullable crystal.
External Components
Decoupling Capacitor
with high-performance mixed-signal MK3732-22 must isolated from system power supply noise perform optimally. decoupling capacitor 0.01µF must connected between each ground plane.
Crystal Tuning Load Capacitors
crystal traces should include pads small fixed capacitors, between ground, another between ground. Stuffing these capacitors optional. need these capacitors determined system prototype evaluation, influenced particular crystal used (manufacture frequency) layout. typical required capacitor value determine need value crystal adjustment capacitors, will need board your final layout, frequency counter capable about resolution accuracy, power supplies, some samples crystals which plan production, along with measured initial accuracy each crystal specified crystal load capacitance, determine value crystal capacitors: Connect MK3732-22 Connect MK3732-22 second power supply. Adjust voltage Measure record frequency 13.5 output. Adjust voltage Measure record frequency same output. calculate centering error:
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
Quartz Crystal
MK3732-22 VCXO function consists external crystal integrated VCXO oscillator circuit. assure best system performance (frequency pull range) reliability, layout guidelines discussed following section must followed. frequency oscillation quartz crystal determined "cut" load capacitors connected MK3732-22 incorporates on-chip variable load capacitors that "pull" (change) frequency crystal. crystal specified with MK3732-22 designed have zero frequency error when total on-chip stray capacitance external crystal must connected close chip possible should same side MK3732-22. There should vias between crystal pins device pins. There should signal traces underneath close crystal.
3.3V Error error xtal
IDT/ ICSBLU-RAY DISC VCXO
MK3732-22
020906
MK3732-22 BLU-RAY DISC VCXO
VCXO SYNTHESIZER
Where: ftarget nominal crystal frequency errorxtal =actual initial accuracy ppm) crystal being measured centering error less than ppm, adjustment needed. centering error more than negative, board excessive stray capacitance layout should considered reduce stray capacitance. (Alternately, crystal re-specified higher load capacitance. Contact details.) centering error more than positive, identical fixed centering capacitors from each crystal ground. value each these caps given External Capacitor (centering error)/(trim sensitivity) Trim sensitivity parameter which supplied your crystal vendor. know value, assume ppm/pF. After changes, repeat measurement verify that remaining error acceptably (typically less than ppm).
Layout Recommendations
optimum device performance lowest output phase noise, following guidelines should observed. 0.01µF decoupling capacitors should mounted component side board close pins possible. vias should used between decoupling capacitors pins. trace should kept short possible, should trace ground via. 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 EMI, series termination resistor needed) should placed close clock output. optimum layout with components same side board, minimizing vias through other signal layers. Other signal traces should routed away from MK3732-22. This includes signal traces just underneath device, layers adjacent ground plane layer used device.
Absolute Maximum Ratings
Stresses above ratings listed below cause permanent damage MK3732-22. 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.
Parameter
Supply Voltage, Inputs Clock Outputs Storage Temperature Soldering Temperature Junction Temperature
Condition
Referenced Referenced Referenced seconds
Min.
-0.5 -0.5
Typ.
Max.
VDD+ VDD+
Units
IDT/ ICSBLU-RAY DISC VCXO
MK3732-22
020906
MK3732-22 BLU-RAY DISC VCXO
VCXO SYNTHESIZER
Recommended Operation Conditions
Parameter
Ambient Operating Temperature Power Supply Voltage (measured respect GND) Power Supply Ramp Time
Min.
+3.15
Typ.
+3.3
Max.
+3.45
Units
Electrical Characteristics
Unless stated otherwise, 3.3V ±5%, Ambient Temperature +70°C
Parameter
Operating Voltage Supply Current Input High Voltage Input Voltage Output High Voltage Output High Voltage Output Voltage Short Circuit Current Input Capacitance Nominal Output Impedance Internal Pull-up Resistor
Symbol
IDDPD ZOUT
Conditions
load, load, Clock outputs Input selects Input selects
Min.
3.135
Typ.
Max.
3.465
Units
VDD-0.4
Electrical Characteristics
Unless stated otherwise, 3.3V ±5%, Ambient Temperature +70°
Parameter
Input Frequency, crystal input Output Rise Time Output Fall Time Crystal Pullability VCXO Gain Cycle Jitter (short term) Duty Cycle Output Frequency Synthesis Error
Symbol
Conditions
Note 80%, Note 20%, Note Note VIN=VDD/2 Note1 peak-to-peak, Note Note outputs except 32.11 MHz, 18.4323 clocks
Min.
Typ.
13.5 ±100 ±250
Max. Units
ppm/V
IDT/ ICSBLU-RAY DISC VCXO
MK3732-22
020906
MK3732-22 BLU-RAY DISC VCXO
VCXO SYNTHESIZER
Parameter
Output Frequency Synthesis Error Output Frequency Synthesis Error Power-up Time
Symbol
Conditions
32.11 clocks 18.4323 clock
Min.
Typ.
Max. Units
from minimum output clock stable
Note With approved crystal. Note Measured with load.
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
Marking Diagram
Marking Diagram free)
MK3732-22R ###### YYWW
Notes: ###### code.
3732-22RLF ###### YYWW
YYWW last digits year, week number that part assembled. "LF" designates (lead) free package.
IDT/ ICSBLU-RAY DISC VCXO
MK3732-22
020906
MK3732-22 BLU-RAY DISC VCXO
VCXO SYNTHESIZER
Package Outline Package Dimensions (20-pin SSOP, Mil. Wide Body)
Package dimensions kept current with JEDEC Publication
Millimeters Symbol
Inches
INDEX AREA
1.35 1.75 0.10 0.25 -1.50 0.20 0.30 0.18 0.25 8.55 8.75 5.80 6.20 3.80 4.00 .635 Basic 0.40 1.27 -0.10
0.053 0.069 0.004 0.010 -0.059 0.008 0.012 0.007 0.010 0.337 0.344 0.228 0.244 0.150 0.157 .025 Basic 0.016 0.050 -0.004
SEATING PLANE
(.004)
Ordering Information
Part Order Number
MK3732-22R MK3732-22RTR MK3732-22RLF MK3732-22RLFTR
Marking
page page
Shipping Packaging
Tubes Tape Reel Tubes Tape Reel
Package
20-pin SSOP 20-pin SSOP 20-pin SSOP 20-pin SSOP
Temperature
+70° +70° +70° +70°
Parts that ordered with "LF" suffix part number Pb-Free configuration RoHS compliant. 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.
IDT/ ICSBLU-RAY DISC VCXO
MK3732-22
020906
MK3732-22 BLU-RAY DISC VCXO
VCXO SYNTHESIZER
Innovate with accelerate your future networks. Contact:
www.IDT.com
Sales
800-345-7015 408-284-8200 Fax: 408-284-2775
Tech Support
<product line email> <product line phone>
Corporate Headquarters
Integrated Device Technology, Inc. 6024 Silver Creek Valley Road Jose, 95138 United States 7015 +408 8200 (outside U.S.)
Asia Pacific Japan
Integrated Device Technology Singapore (1997) Pte. Ltd. Reg. 199707558G Orchard Road #20-03 Wisma Atria Singapore 238877 5505
Europe
Europe, Limited Prime House Barnett Wood Lane Leatherhead, Surrey United Kingdom KT22 1372
2006 Integrated Device Technology, Inc. rights reserved. Product specifications subject change without notice. logo trademarks Integrated Device Technology, Inc. Accelerated Thinking service mark Integrated Device Technology, Inc. other brands, product names marks trademarks registered trademarks used identify products services their respective owners. Printed

MK3732-22 low-cost, low-jitter, Volt VCXO designed replace expensive V

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