LTC1799
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LTC1799

1kHz to 33MHz Resistor Set SOT-23 Oscillator

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 10
1ku List Price Starting From $1.94
Features
  • One External Resistor Sets the Frequency
  • Fast Start-Up Time: <1ms
  • 1kHz to 33MHz Frequency Range
  • Frequency Error ≤1.5% 5kHz to 20MHz (TA = 25°C)
  • Frequency Error ≤2% 5kHz to 20MHz (TA = 0°C to 70°C)
  • ±40ppm/°C Temperature Stability
  • 0.05%/V Supply Stability
  • 50% ±1% Duty Cycle 1kHz to 2MHz
  • 50% ±5% Duty Cycle 2MHz to 20MHz
  • 1mA Typical Supply Current
  • 100Ω CMOS Output Driver
  • Operates from a Single 2.7V to 5.5V Supply
  • Low Profile (1mm) SOT-23 (ThinSOT Package)
  • AEC-Q100 Qualified for Automotive Applications
Additional Details
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The LTC1799 is a precision oscillator that is easy to use and occupies very little PC board space. The oscillator frequency is programmed by a single external resistor (RSET). The LTC1799 has been designed for high accuracy operation (≤1.5% frequency error) without the need for external trim components.

The LTC1799 operates with a single 2.7V to 5.5V power supply and provides a rail-to-rail, 50% duty cycle square wave output. The CMOS output driver ensures fast rise/fall times and rail-to-rail switching. The frequency-setting resistor can vary from 3k to 1M to select a master oscillator frequency between 100kHz and 33MHz (5V supply). The three-state DIV input determines whether the master clock is divided by 1, 10 or 100 before driving the output, providing three frequency ranges spanning 1kHz to 33MHz (5V supply). The LTC1799 features a proprietary feedback loop that linearizes the relationship between RSET and frequency, eliminating the need for tables to calculate frequency.

Applications

  • Low Cost Precision Oscillator
  • Switching Power Supply Clock Reference
  • Clocking Switched Capacitor Filters
  • Fixed Crystal Oscillator Replacement
  • Ceramic Oscillator Replacement
Part Models 10
1ku List Price Starting From $1.94

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC2073B-B

LTC1799 Silicon Oscillator Demo Board

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DC2073B-B

LTC1799 Silicon Oscillator Demo Board

LTC1799 Silicon Oscillator Demo Board

Product Detail

DC2073B demo board features SOT23 packaged silicon oscillators. The DC2073B demo board is available in eleven different options; DC2073B-A through DC2073B-K. These eleven options provide for the evaluation of resistor-set oscillator ICs and fixed frequency ICs.

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