Military Embedded Systems

Freescale PLL line reintroduced by Lansdale Semiconductor


July 19, 2017

John McHale

Editorial Director

Military Embedded Systems

Freescale PLL line reintroduced by Lansdale Semiconductor

PHOENIX, Arizona. Officials at Lansdale Semiconductor, Inc. announced today the continued availability of the ML145170 PLL Frequency Synthesizer circuit with Serial Interface, which was originally designed and built by Motorola/Freescale Semiconductor, Inc.

Lansdale has single-source rights to globally market and continue to manufacture Motorola’s line of phase lock loop (PLL) circuits. The ML145170 is a single-chip synthesizer capable of direct usage in the medium frequency (MF), high frequency (HF), and very high frequency (VHF) bands.

The availability of the ML145170 IC is critical in supporting a variety of applications including automotive products, programmable oscillators, transceivers, cellular phones, and computers. A unique architecture also makes the PLL easy to program -- either a bit- or byte-oriented format may be used. Due to the patented BitGrabber registers, no address/steering bits are required for random access of the three registers. Thus tuning can be accomplished via a 2-byte serial transfer to the 16 bit N register.

The device features fully programmable R and N counters, an amplifier at the Fin pin, on-ship support of an external crystal, a programmable reference output, and both single and double-ended phase detectors with linear transfer functions (no dead zones). A configuration C register enables the part to be configured to meet various applications. A patented feature enables the C register to shut off unused outputs, thereby minimizing noise and interference. The ML145170 is available in dual-in-line and surface mount packaging (P Dip-16, SO 16, and TSSOP 16).

Lansdale’s exclusive product life cycle management system is a quality control system that guarantees form, fit, and function equal to the original manufacturer’s design specifications. This model is critical to for the mitigation of counterfeit parts. It assures a continuous source of high performance IC’s to the worldwide electronics market.

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