DS1089LU-450+

The DS1089LU-450+ is a 3.3V centre spread spectrum EconOscillator in 8 pin µMAX package. This is a clock generator that produces a spread spectrum (dithered) square wave. The DS1089LU-450+ is set to factory programmed 50MHz frequency. The DS1089L is pin-for-pin compatible with the DS1087L, however, the DS1089L dithers at equal percentages above and below the centre frequency. The user still has access to the internal frequency divider ±2% dithered output, dithering rate and programmable output power-down/disable mode through an I2C compatible programming interface. All the device settings are stored in non-volatile (NV) EEPROM allowing it to operate in stand-alone applications. The DS1089L also has power-down and output-enable control pins for power-sensitive applications.

• Supply voltage range is 2.7V to 3.6V
• Operating temperature range from -40°C to 85°C
• Centre frequency remains constant independent of dither percentage
• No external timing components required
• EMI reduction
• Dither frequency is fMOSC/4096
• User programmable down to 130KHz with divider
• Glitchless output-enable control
• Non-volatile settings

Applications

Clock & Timing, Portable Devices

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party