LTC6990 - TimerBlox: Voltage Controlled Silicon Oscillator

Analog Devices

The LTC®6990 is a precision silicon oscillator with a programmable frequency range of 488Hz to 2MHz. It can be used as a fixed-frequency or voltage-controlled oscillator (VCO). The LTC6990 is part of the TimerBlox® family of versatile silicon timing devices.

A single resistor, RSET, programs the LTC6990’s internal master oscillator frequency. The output frequency is determined by this master oscillator and an internal frequency divider, NDIV, programmable to eight settings from 1 to 128.

* Fixed-Frequency or Voltage-Controlled Operation – Fixed: Single Resistor Programs Frequency with <1.5% Max Error – VCO: Two Resistors Set VCO Center Frequency and Tuning Range * Frequency Range: 488Hz to 2MHz * 2.25V to 5.5V Single Supply Operation * 72μA Supply Current at 100kHz * 500μs Start-Up Time * VCO Bandwidth >300kHz at 1MHz * CMOS Logic Output Sources/Sinks 20mA * 50% Duty Cycle Square Wave Output * Output Enable (Selectable Low or Hi-Z When Disabled) * –55°C to 125°C Operating Temperature Range * Available in Low Profile (1mm) SOT-23 (ThinSOT™) and 2mm × 3mm DFN Package * Click here to start your design with the LTC6990 Online Design Tool!

Designed for Automotive and Transportation Applications AEC-Q100 generic family data available for specific packages

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