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4-PLL timing chip comes with 2-wire I?C

Posted: 15 Nov 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Cypress? 4-PLL timing devices? timing devices? program frequency? timing device?

CY24488 timing device from Cypress

Cypress Semiconductor Corp. has introduced a 4-PLL timing device with a 2-wire I?C programming interface, said to be the industry's first such device. The I?C programming allows manufacturers to reduce time-to-market by programming frequencies on the PCB instead of having to order factory-programmed parts or use an additional manufacturing step. It also allows customers to order one part number and use it for multiple products and design iterations, reducing inventory requirements. The new device meets critical timing requirements in digital STBs, DVD recorders, digital TVs and other complex systems requiring synthesis of multiple, unrelated frequencies.

The CY24488 replaces multiple crystals, reducing BOM cost. It provides three independent frequencies and one buffered reference frequency. The programmable output frequencies range from 4.9152MHz to 148.5MHz, compatible with most digital entertainment devices. The device has an integrated analog VCXO with a minimum pull range of 120ppm for maximum frequency resolution and better frequency tracking. It also includes programmable output drive strength for EMI control and a 2.5V option to interface with lower-voltage ICs without extra circuitry.

The CY24488 comes in a space-efficient 16-lead TSSOP package. It is priced starting at $1.95 in 1,000-unit quantities.

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