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NB2869A Datasheet(PDF) 1 Page - ON Semiconductor |
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NB2869A Datasheet(HTML) 1 Page - ON Semiconductor |
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© Semiconductor Components Industries, LLC, 2006 December, 2006 − Rev. 3 1 Publication Order Number: NB2869A/D NB2869A Low Power, Reduced EMI Clock Synthesizer The NB2869A is a versatile spread spectrum frequency modulator designed specifically for a wide range of clock frequencies. The NB2869A reduces ElectroMagnetic Interference (EMI) at the clock source, allowing system wide reduction of EMI of all clock dependent signals. The NB2869A 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 NB2869A uses the most efficient and optimized modulation profile approved by the FCC and is implemented by using a proprietary all digital method. The NB2869A 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’. The NB2869A is targeted towards all portable devices with very low power requirements like MP3 players and digital still cameras. Features • Generates an EMI Optimized Clocking Signal at the Output • Integrated Loop Filter Components • Operates with a 3.3 V / 2.5 V Supply • Operating Current less than 4.0 mA • Low Power CMOS Design • Input Frequency Range: 6.0 MHz to 12 MHz for 2.5 V Input Frequency Range: 6.0 MHz to 13 MHz for 3.3 V • Generates a 1X Low EMI Spread Spectrum clock of the Input Frequency • Frequency Deviation "1% @ 10 MHz • Available in TSOP−6 Package (TSOT−23−6) • Pb−Free Package is Available 1 6 *For additional marking information, refer to Application Note AND8002/D. TSOP−6 (TSOT−23−6) SN SUFFIX CASE 318G See detailed ordering and shipping information in the package dimensions section on page 7 of this data sheet. ORDERING INFORMATION http://onsemi.com MARKING DIAGRAM* E08 = Specific Device Code A = Assembly Location Y = Year W = Work Week G = Pb−Free Package E08AYWG G 1 (Note: Microdot may be in either location) |
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