ASM3P2111A allows significant system cost savings Features Genera

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ASM3P2111A allows significant system cost savings Features Genera

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ASM3P2111A
ASM3P2111A allows significant system cost savings
Features Generates optimized clocking signal output. Input frequency MHz. Frequency outputs: (unmodulated) (unmodulated) 66.6 (modulated) -1.7% down spread Modulation rate: KHz. Supply voltage range 3.3V 0.3V). Available 8-pin SOIC package. Commercial Industrial Temperature range. Product Description
ASM3P2111A versatile spread spectrum frequency modulator. ASM3P2111A reduces electromagnetic interference (EMI) clock source.
reducing number circuit board layers shielding that required pass regulations. ASM3P2111A modulates output order spread bandwidth synthesized clock, thereby decreasing peak amplitudes harmonics. This results significantly lower system compared typical narrow band signal produced oscillators most clock generators. Lowering increasing signal's bandwidth called spread spectrum clock generation.
Applications
ASM3P2111A targeted towards management high speed digital applications such peripheral devices, consumer electronics embedded controller systems.
Block Diagram
XOUT
Crystal Oscillator PLL1 MHz_1
MHz_2 MHz_1 PLL2 66.6 Modulated
Alliance Semiconductor 2575 Augustine Drive Santa Clara Tel: 408-855-4900 Fax: 408-855-4999 www.alsc.com
Configuration
ASM3P2111A
XOUT
66.6 MHz_1 MHz_2
ASM3P2111A
Description
Name
XOUT MHz_2 MHz_1 66.6
Type
Connection crystal Connection crystal
Description
Power supply analog digital blocks Clock output-1 unmodulated Clock output-2 MHz_2 unmodulated Clock output-3 MHz_1 unmodulated Clock output-4 66.6 modulated Ground entire chip
Peak Reducing Solution
ASM3P2111A
Absolute Maximum Ratings Symbol Parameter Supply voltage, Input voltage, Output voltage, Input clamp current (VI<0 VI>VDD) Output clamp current (VI<0 VI>VDD) Storage temperature Ambient temperature range, under bias Junction temperature Lead temperature (soldering sec) Rating (VSS 0.5) (VSS-0.5) (VDD+0.5) (VSS-0.5) (VDD 0.5) +125 Unit
Input static discharge voltage protection (MIL -STD 883E, Method 3015.7) Note: These stress ratings only functional operation implied. Exposure absolute maximum ratings extended periods affect device reliability.
Operating Conditions
Parameter Supply Voltage Ambient Operating Temperature Range Crystal Resonator Frequency Output Driver Load Capacitance
Symbol FXIN
Condition Description 3.3V
Unit
Crystal Specifications Fundamental parallel resonant crystal Nominal frequency Frequency tolerance Operating temperature range Storage temperature Load capacitance Shunt capacitance better 25°C -25°C +85°C -40°C +85°C 18pF maximum
Peak Reducing Solution
Electrical Characteristics Parameter Supply Current, Dynamic Supply Current, Static High-Level Input Voltage Low-Level Input Voltage High-Level Input Current Low-Level Input Current (pull-up) High-Level Output Source Current Low-Level Output Source Current High-Level Output Source Current Low-Level Output Sink Current Output Impedance Symbol Conditions Description VDD=3.3V, FCLK=25MHz, CL=15pF 3.3V, Software Power Down
ASM3P2111A
Unit Overall
IDDL
input pins
IxOH IxOL
VDD=3.3V VDD=3.3V
VSS-0.3
VDD+0.3
VDD=V(XIN) 3.3V, VO=0V VDD=3.3V, V(XIN)=VO=5.5V
Clock Outputs VO=2.4V VO=0.4V VO=0.5VDD; output driving high Vo=0.5VDD; output driving
Peak Reducing Solution
ASM3P2111A
Electrical Characteristics Conditions/ Description 0.3V 3.0V; Rise Time 15pF 3.0V 0.3V; Fall Time 15pF Ratio pulse width measured from Clock Duty rising edge next falling edge 2.5V) Cycle clock period rising edges apart Jitter, Long relative ideal clock, inactive (LT) Term rising edges apart relative ideal clock, active From rising edge next rising edge inactive Jitter, peak peak From rising edge next rising edge active Input clock frequency 12.75 MHz, Output frequency Parameter Symbol Unit
Peak Reducing Solution
ASM3P2111A
Package Information
8-Pin SOIC package
Symbol
Dimensions inches 0.053 0.004 0.013 0.007 0.188 0.150 0.228 0.050 0.016 0.035 0.069 0.010 0.022 0.012 0.197 0.158 0.244
Dimensions millimeters 1.35 0.10 0.33 0.18 4.78 3.80 5.80 1.27 0.40 0.89 1.75 0.25 0.53 0.27 5.00 4.01 6.20
Peak Reducing Solution
ASM3P2111A
Ordering Codes Part number ASM3P2111AF-08-ST ASM3P2111AF-08-SR ASM3I2111AF-08-ST ASM3I2111AF-08-SR Package Configuration 08-pin SOIC TUBE 08-pin SOIC TAPE REEL 08-pin SOIC TUBE 08-pin SOIC TAPE REEL Temperature Range Commercial Commercial Industrial Industrial
Ordering Information
SOT23/T/R TSSOP, TUBE TSSOP, QFN, TUBE BGA, TUBE BGA,
SOIC, TUBE SOIC, QFN, TVSOP, TUBE TVSOP, SSOP, SSOP, TUBE
COUNT
FREE
PART NUMBER
Automotive
Industrial
Commercial
reserved based Reduction support products Zero Delay Buffer
power management power management power management performance reserved
Alliance Semiconductor Mixed Signal Product
Licensed under patent #5,488,627, #6,646,463 #5,631,920.
Peak Reducing Solution
ASM3P2111A
Alliance Semiconductor Corporation 2575, Augustine Drive, Santa Clara, 95054 Tel# 408-855-4900 Fax: 408-855-4999 www.alsc.com
Copyright Alliance Semiconductor Rights Reserved Preliminary Information Part Number: ASM3P2111A Document Version: v1.1
Note: This product utilizes Patent 6,646,463 Impedance Emulator Patent issued Hariton Alliance Semiconductor, dated 11-11-2003
Copyright 2003 Alliance Semiconductor Corporation. rights reserved. three-point logo, name Intelliwatt trademarks registered trademarks Alliance. other brand product names trademarks their respective companies. Alliance reserves right make changes this document products time without notice. Alliance assumes responsibility errors that appear this document. data contained herein represents Alliance's best data and/or estimates time issuance. Alliance reserves right change correct this data time, without notice. product described herein under development, significant changes these specifications possible. information this product data sheet intended general descriptive information potential customers users, intended operate provide, guarantee warrantee user customer. Alliance does assume responsibility liability arising application product described herein, disclaims express implied warranties related sale and/or Alliance products including liability warranties related fitness particular purpose, merchantability, infringement intellectual property rights, except express agreed Alliance's Terms Conditions Sale (which available from Alliance). sales Alliance products made exclusively according Alliance's Terms Conditions Sale. purchase products from Alliance does convey license under patent rights, copyrights; mask works rights, trademarks, other intellectual property rights Alliance third parties. Alliance does authorize products critical components life-supporting systems where malfunction failure reasonably expected result significant injury user, inclusion Alliance products such life-supporting systems implies that manufacturer assumes risk such agrees indemnify Alliance against claims arising from such use.
Peak Reducing Solution

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