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

The device is a 1 PLL + DCO architecture design with an external fundamental crystal or clock input. The device allows up to 3 unique frequency outputs. The 5L1503 has built-in unique features such as Proactive Power Saving (PPS) and an extreme 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 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 VDDO1.8V, 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.


  • Proactive Power Saving (PPS) features save power during the end device power down mode
  • Dynamic Frequency Control (DFC) feature allows programming up to 2 difference configuration 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 IDT Timing Commander™  software tool

Product Options

下单器件 ID 描述 Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Carrier Type Buy Sample
5L1503-000NVGI Standard Active NVG10 VFQFPN 10 I Cut Tape
5L1503-000NVGI8 Standard Active NVG10 VFQFPN 10 I Reel
5L1503L-000NVGI Ultra Low-power Active NVG10 VFQFPN 10 I Cut Tape
5L1503L-000NVGI8 Ultra Low-power Active NVG10 VFQFPN 10 I Reel
5L1503S-000NVGI Spread Clock Active NVG10 VFQFPN 10 I Cut Tape
5L1503S-000NVGI8 Spread Clock Active NVG10 VFQFPN 10 I Reel


文档标题 他の言語 文档类型 文档格式 文件大小
5L1503 Datasheet Datasheet PDF 402 KB
Timing Commander Installation Guide Guide PDF 497 KB
应用指南 &白皮书
AN-1045 MicroClock Low Power and EMI Recommendations Application Note PDF 233 KB
AN-918 Programmable Clocks vs Crystal Oscillators Application Note PDF 221 KB
AN-845 Termination - LVCMOS Application Note PDF 62 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-806 Power Supply Noise Rejection Application Note PDF 353 KB
5X1503-5L1503 Reference Schematic Schematic PDF 58 KB
MicroClock Programmable Clocks Family Overview Overview PDF 1023 KB
Timing Solutions Products Overview Overview PDF 4.11 MB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB


文档标题 他の言語 文档类型 文档格式 文件大小
MicroClock Timing Commander Personality File (v4.14) Software ZIP 8.20 MB
Timing Commander Installer (v1.15.0.27471) Software ZIP 19.57 MB

Evaluation Boards

Part Number Title 升序排列
DEV5L1503 MicroClock 5L1503 / 5L1503L / 5L1503S Development Kits