Oscillator & Pulse Generator IC, Voltage Controlled, 488 Hz to 2 MHz, 2.25 V to 5.5 V, TSOT-23-6

LTC6990CS6#TRMPBF - Oscillator & Pulse Generator IC, Voltage Controlled, 488 Hz to 2 MHz, 2.25 V to 5.5 V, TSOT-23-6

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Product Overview

The LTC6990CS6#TRMPBF is a voltage controlled 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. When the output is disabled, it is either held low or placed in a high impedance state as dictated by the Hi-Z bit value. When power is first applied to the LTC6990 the power-on reset (POR) circuit will initiate the start-up time. The OUT pin is floated (high-impedance) during this time.
  • Fixed-frequency or voltage-controlled operation
  • Single resistor programs fixed frequency with <1.5% maximum error
  • Two resistors set VCO centre frequency and tuning range
  • 488Hz to 2MHz Frequency range
  • Single-supply operation
  • 72µA Supply current at 100kHz
  • 500µs Start-up time
  • >300kHz VCO bandwidth at 1MHz
  • CMOS logic output sources/sinks 20mA
  • 50% Duty cycle square wave output
  • Output enable (selectable low or Hi-Z when disabled)


Signal Processing, Portable Devices, Power Management

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