MC145170DT2

The MC145170DT2 from NXP Semiconductors is a single-chip PLL frequency synthesizer designed for MF, HF, and VHF band applications. It features a fully programmable R and N counter, supporting division ranges from 1 to 32,767 for the R counter and 40 to 65,535 for the N counter. This device operates within a voltage range of 2.7V to 5.5V and can achieve a maximum operating frequency of 185MHz under specific conditions.

The synthesizer architecture allows for easy programming using bit- or byte-oriented formats. It includes patented BitGrabber registers for random access without address/steering bits, enabling tuning via a 2-byte serial transfer to the 16-bit N register. The MC145170DT2 also features an on-chip support for an external crystal, a programmable reference output, and both single- and double-ended phase detectors with linear transfer functions. A configuration register allows for customization to various applications, with a patented feature to shut off unused outputs to minimize noise.

This component is housed in a 16-TSSOP surface-mount package, measuring 0.173 inches (4.40mm) in width. It is designed to operate in an ambient temperature range of -40°C to 85°C. The device is suitable for applications requiring precise frequency synthesis and distribution.