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I2779A データシート

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I2779A
Alliance
Alliance Semiconductor Alliance
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Product Description
The P2779A is a versatile spread spectrum frequency modulator designed specifically for mobile and digital camera and other digital video and imaging applications. The P2779A reduces electromagnetic interference (EMI) at the clock source, which provides system-wide reduction of EMI of all clock dependent signals. The P2779A allows significant system cost savings by reducing the number of circuit board layers and shielding that are traditionally required to pass EMI regulations.

Features
Provides up to 15dB of EMI suppression
FCC approved method of EMI attenuation
Generates a 1X low EMI spread spectrum clock of the input frequency
Operates between 20MHz and 38MHz input frequency range
External loop filter for spread percentage adjustment
Spreading ranges from ±0.25% to ±2.5%
Ultra low cycle-to-cycle jitter
Zero-Cycle slip at small deviations
3.3 V Operating Voltage
10 mA output drives
TTL or CMOS compatible outputs
Low power CMOS design
Available in 8-pin SOIC and TSSOP Packages
Available for Industrial temperature operating range (-40º C to 85º C)

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