What the IMIXG571CTB does — and where it fits
The IMIXG571CTB is a spread-spectrum clock generator with an integrated PLL, producing a clock output from a reference input. It contains two independent PLL circuits, each driving up to 25 outputs from a single 48-TSSOP package. The maximum output frequency is 16 MHz. The spread-spectrum modulation spreads the clock energy across a small frequency band, reducing peak radiated emissions at the fundamental and harmonics. This makes the IMIXG571CTB a direct fit for EMI-sensitive designs: consumer electronics, office equipment, industrial controllers, and any board that must pass FCC or CISPR Class B radiated-emission limits without extra shielding or ferrite beads.
Supply voltage and temperature grade — what they mean for the BOM
The IMIXG571CTB accepts two independent supply ranges: 2.375 V to 2.625 V and 3.135 V to 3.465 V. The operating temperature range is 0°C to 70°C. The 1:25 input-to-output ratio per circuit means a single reference clock fans out to 25 loads on each of the two PLL domains.
Lifecycle and sourcing
For new designs, this means no forced redesign due to obsolescence in the near term. The part is not qualified to AEC-Q100 or any military standard — it is a commercial-grade component.