Oscillator optimized for signal integrity in performance-critical applications

Texas Instruments (TI) (NASDAQ: TXN) today introduced a family of fully programmable, pin-selectable and fixed-frequency 7-mm-by-5-mm differential oscillators that provides the industry’s lowest jitter of 90 femtoseconds (fs), which enables designers to optimize signal integrity and reduce data-transmission errors in performance-critical applications. The LMK61xx family enables easy customization, frequency margining and support for multiple frequencies on one device to clock field-programmable gate arrays (FPGAs), analog-to-digital converters (ADCs), digital-to-analog converters (DACs) and high-speed serial links.

Key features and benefits of LMK61xx oscillators

Industry’s lowest jitter: 90-fs typical root-mean-square (RMS) jitter performance over 12 kHz to 20 MHz is less than half that of competing oscillators, allowing designers to improve reliability and system margin in communications, test and measurement, and medical equipment.
Flexible and easy to customize: The family of 11 oscillators includes programmable, pin-selectable and fixed-frequency devices, offering low-voltage pseudo emitter-coupled logic (LVPECL), low-voltage differential signaling (LVDS) and high-speed current-steering logic (HCSL) output formats, and frequencies ranging from 10 MHz to 1 GHz. The family provides a variety of options to meet designers’ needs.

The programmable device offers ultimate flexibility, with an I2C interface as well as an on-chip electrically erasable programmable read-only memory (EEPROM) with 100 write cycles, enabling designers to easily customize the start-up frequency.The pin-selectable device offers design flexibility by consolidating up to seven unique frequencies and output formats on one device.
The fixed-frequency oscillators support fast, frequency-independent lead times. Glitchless fine/coarse frequency margining enables designers to ease compliance and stress testing of their systems during prototype design verification.
Industry-standard 6-pin and 8-pin oscillator footprints simplify adoption and evaluation in existing designs without the need for board redesign.
Tools to speed design-in process

Texas Instruments
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