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FS791/92/94 Datasheet

  • FS791/92/94

  • Clocks and Buffers

  • 9頁(yè)

  • ETC

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92/94
FS791/92/94
Low EMI Spectrum Spread Clock
Features
鈥?Spread Spectrum Clock Generator (SSCG) with 1x, 2x
and 4x outputs
鈥?80- to 140-MHz operating frequency range
鈥?Modulates external clocks including crystals, crystal
oscillators, and ceramic resonators
鈥?Programmable modulation with simple R-C external
loop filter (LF)
鈥?Center spread modulation
鈥?3鈥? Volt power supply
鈥?TTL/CMOS compatible outputs
鈥?Low short-term jitter
鈥?Low Power Dissipation;
鈥?3.3 VDC = 73 mW鈥攖ypical
鈥?5.0 VDC = 225 mW鈥攖ypical
鈥?Available in 8-pin SOIC package
.
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Desktop/Notebook computers
VGA, XGA, and SXGA LCD displays
High-speed printers and copiers
CD-ROM, VCD, and DVD
Embedded systems
Networking, LAN/WAN
Modems
Benefits
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Programmable EMI reduction
Fast time-to-market
Lower cost of compliance
No degradation in Rise/Fall time
Lower component and PCB layer count
Block Diagram
Loop Filter
Pin Configuration
4
Xin
1
10 pF.
Reference
Divider
Xin
Phase
Detector
10 pF.
1
2
3
4
8
FS79x 7
6
5
VDD
S0
FSOUT
VSS
VCO
Xout
S1
LF
Xout
2
10 pF.
Modulation
Control
VCO / N
VDD
8
Power Contol
Logic
Input Control
Counter
and
Mux
FSOUT
6
5
3
7
VSS
S1
S0
Cypress Semiconductor Corporation
Document #: 38-07343 Rev *A
鈥?/div>
3901 North First Street
鈥?/div>
San Jose
鈥?/div>
CA 95134 鈥?408-943-2600
Revised December 28, 2002

FS791/92/94相關(guān)型號(hào)PDF文件下載

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  • 英文版
    Low EMI Spectrum Spread Clock
    CYPRESS [C...
  • 英文版
    Low EMI Spectrum Spread Clock
    CYPRESS [C...
  • 英文版
    Low EMI Spectrum Spread Clock
    CYPRESS [C...
  • 英文版
    Clocks and Buffers
    ETC

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