World's First CMOS Oscillators to Support 5Gbps Super-Speed USB 3.0 Controller Applications
IDT`s new Device Expands CrystalFree™ Oscillator Family that has Shipped Tens of Millions of Units to Date in the USB Market
The new series of IDT CMOS oscillators support all Super-Speed (SS) USB 3.0 specifications, including frequency accuracy and jitter, while offering the extremely low power required by these applications.
The devices also support low frequency periodic signaling (LFPS) and timing in USB 3.0 suspend mode with the inclusion of an optional secondary ultra-low-power LFPS oscillator. This feature enables all frequency reference circuits to be removed from the USB 3.0 controller, reducing overall solution cost and board space. These devices have garnered considerable interest from early customers; with design successes including USB 3.0 flash memory drives and USB 3.0 to S-ATA bridge devices.
Additionally, IDT has expanded its portfolio of CMOS oscillators that support High-Speed (HS) USB 2.0. The new additions include industrial temperature range (-40°C to 85°C) support and devices that detect the state of the USB controller’s crystal oscillator driver circuit to simplify crystal resonator replacement.
With this technology, customers can replace a crystal resonator with an IDT CrystalFree oscillator and meet USB suspend-mode power requirements while achieving active oscillator performance – all without any specialized changes to the crystal driver circuit.
