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ASM3P2762AF-06OR Datasheet(PDF) 1 Page - ON Semiconductor |
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ASM3P2762AF-06OR Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 9 page © Semiconductor Components Industries, LLC, 2011 August, 2011 − Rev. 3 1 Publication Order Number: ASM3P2762A/D ASM3P2762A Low Power Peak EMI Reducing Solution Description The ASM3P2762A is a versatile spread spectrum frequency modulator designed specifically for a wide range of clock frequencies. The ASM3P2762A reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of all clock dependent signals. The ASM3P2762A allows significant system cost savings by reducing the number of circuit board layers, ferrite beads and shielding that are traditionally required to pass EMI regulations. The ASM3P2762A uses the most efficient and optimized modulation profile approved by the FCC and is implemented by using a proprietary all digital method. The ASM3P2762A modulates the output of a single PLL in order to “spread” the bandwidth of a synthesized clock, and more importantly, decreases the peak amplitudes of its harmonics. This results in significantly lower system EMI compared to the typical narrow band signal produced by oscillators and most frequency generators. Lowering EMI by increasing a signal’s bandwidth is called ‘spread spectrum clock generation.’ Applications The ASM3P2762A is targeted towards all portable devices with very low power requirements like MP3 players and digital still cameras. Features • Generates an EMI Optimized Clock Signal at the Output • Integrated Loop Filter Components • Operates with a 3.3 V / 2.5 V Supply • Operating Current less than 6 mA • Low Power CMOS Design • Input Frequency Range: 6 MHz to 12 MHz for 2.5 V 6 MHz to 13 MHz for 3.3 V • Generates a 1X Low EMI Spread Spectrum Clock of the Input Frequency • Frequency Deviation: −1.25% (Typ) @ 10 MHz Input Frequency • Available in 6−pin TSOT−23, 8−pin SOIC and 8−pin TSSOP Packages • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant http://onsemi.com TSOT−6 O SUFFIX CASE 419AF PIN CONFIGURATIONS 6−Pin TSOT−23 Package (Top View) See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet. ORDERING INFORMATION VSS ModOUT VDD XOUT PD 1 XIN / CLKIN VDD = 3.3 V / 2.5 V Supply Voltages 200 pS (Max) Cycle−to−Cycle Jitter 45/55% Output Duty Cycle FIN/256 Modulation Rate Equation −1.25% (Typ) @ 10 MHz Frequency Deviation Description Specification KEY SPECIFICATIONS SOIC−8 S SUFFIX CASE 751BD TSSOP−8 T SUFFIX CASE 948AL 8−Pin SOIC and TSSOP Packages (Top View) 1 VSS ModOUT VDD XOUT PD XIN / CLKIN NC NC |
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