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P2560B

Features: · FCC approved method of EMI attenuation· Generates a low EMI spread spectrum and a nonspread reference signal of the input clock frequency· Optimized for input frequency range from 20 to 32 MHz· Internal loop filter minimizes external components and board space· Two selectable spread ra...

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SeekIC No. : 004439101 Detail

P2560B: Features: · FCC approved method of EMI attenuation· Generates a low EMI spread spectrum and a nonspread reference signal of the input clock frequency· Optimized for input frequency range from 20 to ...

P2560B Data Sheet

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Part Number:
P2560B
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· FCC approved method of EMI attenuation
· Generates a low EMI spread spectrum and a nonspread
  reference signal of the input clock frequency
· Optimized for input frequency range from 20 to 32 MHz
· Internal loop filter minimizes external components
  and board space
· Two selectable spread ranges
· Low inherent cycle-to-cycle jitter
· 3.3 V or 5 V operating voltage
· CMOS/TTL compatible inputs and outputs
· Ultra low power CMOS design: 5.50 mA @3.3 V
· Supports notebook VGA and other LCD timing
  controller applications
· SSON pin for Spread Spectrum On/Off and
  Standby Mode controls
· Available in 8-pin SOIC and TSSOP


Application

The P2560B is targeted toward the notebook VGA chip and other displays using an LVDS interface, PC peripheral devices, and embedded systems


Pinout

Connection Diagram


Specifications

Symbol Parameter Rating Unit
VDD, VIN Voltage on any pin with respect to GND -0.5 to +7.0 V
TSTG Storage temperature -65 to +125 ° C
TA Operating temperature 0 to +70 ° C



Description

The P2560B is a versatile spread spectrum frequency modulator designed specifically for a wide range of clock frequencies. It reduces electromagnetic interference (EMI) at the clock source allowing system-wide reduction of EMI of downstream clock and data dependent signals. P2560B allows significant system cost savings by reducing the number of circuit board layers and shielding traditionally required to pass EMI regulations.

The P2560B modulates the output of a single PLL in order to spread the bandwidth of a synthesized clock, thereby decreasing 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 clock generators. Lowering EMI by increasing a signal's bandwidth is called spread spectrum clock generation.

The P2560B uses the most efficient and optimized modulation profile approved by the FCC and is mplemented by using a proprietary all-digital method.




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