For an upcoming project I need a variable clock source: up to 50MHz and as low as 10KHz. So I looked up VXCOs, PLLs, DDSs, etc etc. all not quite what I wanted.
And then I found this, the LTC6903, 1KHz-68MHz SPI (or I2C) programmable oscillator, 8 pins, <0.5% error, no crystal (?!). Theres also a resistor-controlled family (LT1933 in SOT23-5). This is the coolest thing ever!
Check out this kinky "typical app"
As Javaman says, “its like a monk that can control his own heartrate”
Congrats LTC690x, you are the Chip of the Week!