P1707A, P1707A-08SR, P1707A-08ST Selling Leads, Datasheet
MFG:ALLIANCE Package Cooled:SOP D/C:SOP
P1707A, P1707A-08SR, P1707A-08ST Datasheet download
Part Number: P1707A
MFG: ALLIANCE
Package Cooled: SOP
D/C: SOP
P1707A, P1707A-08SR, P1707A-08ST
- Table of contents:
Info of P1707A
Info of P1707A-08SR
Info of P1707A-08ST
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About P1707A
PDF/DataSheet Download
Datasheet: P1707A
File Size: 214337 KB
Manufacturer: ALSC [Alliance Semiconductor Corporation]
Download : Click here to Download
About P1707A-08SR
PDF/DataSheet Download
Datasheet: P1707A-08SR
File Size: 214337 KB
Manufacturer: ALSC [Alliance Semiconductor Corporation]
Download : Click here to Download
About P1707A-08ST
PDF/DataSheet Download
Datasheet: P1707A-08ST
File Size: 214337 KB
Manufacturer: ALSC [Alliance Semiconductor Corporation]
Download : Click here to Download
P1707A General Description
The P1707A is a versatile spread spectrum frequency modulator designed specifically for input clock frequencies.
The P1707A reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The P1707A allows significant system cost savings by reducing the number of circuit board layers ferrite beads, shielding and other passive components that are traditionally required to pass EMI regulations.
The P1707A 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 P1707A uses the most efficient and optimized modulation profile approved by the FCC and is implemented in a proprietary all digital method.
The P1707A reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The P1707A allows significant system cost savings by reducing the number of circuit board layers ferrite beads, shielding and other passive components that are traditionally required to pass EMI regulations.
The P1707A 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 P1707A uses the most efficient and optimized modulation profile approved by the FCC and is implemented in a proprietary all digital method.
P1707A Maximum Ratings
| 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 | |
| TA | Operating temperature | 0 to 70 | |
| Note: These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for extended periods may affect device reliability. | |||
P1707A Features
·FCC approved method of EMI attenuation.
·Generates a low EMI spread spectrum clock of the input frequency.
·Optimized for frequency range from 60 to 175MHz.
·Internal loop filter minimizes external components and board space.
·Four selectable spread ranges.
·Low inherent cycle-to-cycle jitter.
·3.3V operating voltage range.
·TTL or CMOS compatible inputs and outputs.
·Ultra-low power CMOS design.
·14.85 mA @3.3V, 140MHz
·16.69mA @3.3V, 162MHz
·17.78 mA @3.3V, 175MHz
·Supports notebook VGA and other LCD timing controller applications.
·Pinout compatible to ICS MK1707 and Cypress CY25561/CY25560.
·SSON/SBM pin for Spread Spectrum On/Off and Standby Mode controls.
·Available in 8-pin SOIC and TSSOP.
·Generates a low EMI spread spectrum clock of the input frequency.
·Optimized for frequency range from 60 to 175MHz.
·Internal loop filter minimizes external components and board space.
·Four selectable spread ranges.
·Low inherent cycle-to-cycle jitter.
·3.3V operating voltage range.
·TTL or CMOS compatible inputs and outputs.
·Ultra-low power CMOS design.
·14.85 mA @3.3V, 140MHz
·16.69mA @3.3V, 162MHz
·17.78 mA @3.3V, 175MHz
·Supports notebook VGA and other LCD timing controller applications.
·Pinout compatible to ICS MK1707 and Cypress CY25561/CY25560.
·SSON/SBM pin for Spread Spectrum On/Off and Standby Mode controls.
·Available in 8-pin SOIC and TSSOP.
P1707A Typical Application
·The P1707A is targeted towards notebook LCD displays, and other displays using an LVDS interface, PC peripheral devices, and embedded systems.
P1707A Connection Diagram
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