The LTC6904CMS8#PBF is a low power serial port Programmable Oscillator providing a precision frequency from 1kHz to 68MHz, set through a serial port. The LTC6904 require no external components other than a power supply bypass capacitor and it operate over a single wide supply range of 2.7 to 5.5V. It uses an industry standard I2C compatible interface and contains an internal feedback loop which controls a high frequency square wave VCO operating between 34MHz and 68MHz. The internal feedback loop frequency is set over an octave by a 10-bit resistor DAC. The VCO tracks the internal feedback loop frequency and the output frequency of the VCO is divided by one of sixteen possible powers of two.
1kHz to 68MHz Square wave output
0.5% Typical initial frequency accuracy
<1.1% Frequency error over all settings
10ppm/°C Typical frequency drift over-temperature
0.1% Resolution
1.7mA Typical supply current (f < 1MHz, VS = 2.7V)
