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P2160A-08TT Datasheet

  • P2160A-08TT

  • High Frequency LCD Panel EMI Reduction IC

  • 287.49KB

  • 9頁

  • ALSC

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October 2003
rev E
High Frequency LCD Panel EMI Reduction IC
Features
FCC approved method of EMI attenuation
Provides up to 20 dB of EMI suppression
Generates a low EMI spread spectrum clock of
the input frequency
40 MHz to 166 MHz input frequency range
Optimized for SVGA, XGA and high resolution
SXGA and UXGA LCD panels
Internal loop filter minimizes external
components and board space
2 selectable spreading options
SSON# control pin for spread spectrum enable
and disable options
2 selectable modulation rates
Low cycle-to-cycle jitter
3.3V operating range 16 mA output drives
16 mA output drives
TTL or CMOS compatible outputs
Low power CMOS design
Supports most mobile graphic accelerator
specifications
Available in 8 pin SOIC and TSSOP
Product Description
The P2160 is a selectable spread spectrum
frequency modulator designed compared to the
Block Diagram
P2160
typical narrow band signal produced by oscillators
and most frequency generators. Lowering EMI by
increasing a signal鈥檚 bandwidth is called 鈥渟pread
spectrum clock generation鈥?reducing the number of
circuit board layers and shielding that are traditionally
required to pass EMI regulations.
The P2160 uses the most efficient and optimized
modulation profile approved by the FCC and is
implemented in a proprietary all-digital method.
The P2160 modulates the output of a single PLL in
order to 鈥渟pread鈥?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鈥檚 bandwidth is called 鈥渟pread
spectrum clock generation鈥?
Applications
The P2160 is targeted towards digital flat panel
applications for Notebook PCs, Palm-size PCs, Office
Automation Equipments, and LCD Monitors, Digital
Still Cameras and GPS Devices.
Alliance Semiconductor
2575, Augustine Drive
鈥?/div>
Santa Clara, CA
鈥?/div>
Tel: 408.855.4900
鈥?/div>
Fax: 408.855.4999
鈥?/div>
www.alsc.com
Notice: The information in this document is subject to change without notice.

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