Looking for a serial programmable sine wave generator IC (0-500kHz)

The discussion focuses on finding a dedicated IC for generating accurate low-frequency sine waves up to 500 kHz without relying on MCU-based digital synthesis. The original request mentioned the ML2039 IC from Micro Linear, which is difficult to source in small quantities in Europe. Alternative suggestions include the XR2206 IC from Exar, capable of producing sine, square, and sawtooth waves from 1 Hz to 2 MHz, and the ICL8038CCPD from Intersil. The XR2206 is highlighted as a suitable and accessible substitute. Additionally, a method to digitally control the XR2206 using a phase-locked loop (PLL) with a CD4046 IC to convert MCU square wave output into multi-wave signals is proposed. Some lighthearted comments reference simple sine wave generation experiments unrelated to the technical solutions.
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