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Overview

Description

The 5L1503 is a series of small form factor programmable clock generators intended for low-power, consumer, battery-powered applications, wearables, and smart devices.

The device is a 1 PLL + DCO architecture design with an external fundamental crystal or clock input. It allows up to three unique frequency outputs. The 5L1503 has built-in unique features such as Proactive Power Saving (PPS) and an extremely low power DCO to support system date/time keeping clock at 32.768kHz. Dynamic Frequency Control (DFC) supports dynamically changing between four different PLL frequencies via external requests with controlled frequency changes, reducing frequency overshoot and undershoot (ORT). The 5L1503S device can also support a spread clock output for EMI reduction.

An internal one-time programmable (OTP) memory allows the user to store up to four independent configurations that can be loaded on power-up without programming. The 5L1503 supports three LVCMOS type outputs with VDDO 1.8V, as well as various amplitude clocks. A low-power 32.768kHz clock is supported with only less than 1μA current consumption for system RTC reference clock needs.

Features

  • Proactive Power Saving (PPS) features save power during the end device power-down mode
  • Dynamic Frequency Control (DFC) feature allows programming up to 2 different configurations that switch dynamically
  • Programmable output clock amplitude(1.0V, 1.1V, 1.2V, and 1.8V) to support low output swing clock requirement
  • Dedicated 32kHz output with 8 options clock amplitude (5L1503L)
  • Spread spectrum compatible; tracks spreading input clock for low EMI (5L1503S)
  • OTP programming
  • Supported by Renesas' Timing Commander™ software tool

Comparison

Applications

Documentation

Design & Development

Software & Tools

Software & Tools

Software title
Software type
Company
Timing Commander
Timing Commander™ is an innovative Windows™-based software platform enabling system design engineers to configure, program, and monitor sophisticated timing devices with an intuitive and flexible graphical user interface (GUI).
Code Generator Renesas
1 item

Software Downloads

Type Title Date
Software & Tools - Software Log in to Download ZIP 18.02 MB
Software & Tools - Other Log in to Download ZIP 8.19 MB
2 items

Boards & Kits

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models

Videos & Training

MicroClock™ Clock Generator Family Overview

A brief overview of the MicroClock™ family of tiny, flexible clock generators designed for wearable, hearable, and IoT applications.

Related Resources