LMK03318RHSTL1 Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
The LMK03318RHSTL1 is an ultra-low jitter clock generator from Texas Instruments featuring a single PLL architecture for high-precision clock synthesis and distribution. It supports multiple output frequencies with sub-100fs RMS jitter performance, operating from -40C to 85C in a compact 48-pin WQFN package. Designed for high-speed networking, data converters, and communication systems requiring clean clock signals.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 49
- Lifecycle
- ACTIVE
- Datasheet
- LMK03318RHSTL1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LMK03318RHSTL1?
- Ultra-low RMS jitter performance enabling high-fidelity clock distribution for ADCs, DACs, and SerDes interfaces in data-intensive systems
- Single integrated PLL with flexible fractional-N synthesis supports wide output frequency range from a single reference input with minimal external circuitry
- 48-pin WQFN package with industrial temperature range (-40C to 85C) and tape-and-reel (L1 suffix) packaging for automated SMT production assembly
What is LMK03318RHSTL1 used for?
The LMK03318RHSTL1 is used as a primary clock source and distribution device in high-speed data acquisition systems, where its ultra-low jitter output drives the sampling clocks of high-resolution ADCs and DACs to minimize aperture uncertainty and noise degradation. In networking equipment such as 10G/25G Ethernet switches and line cards, it provides synchronous clock signals for SerDes lanes and FPGAs that require sub-picosecond timing accuracy. It is also applied in wireless base stations, test and measurement instruments, and radar systems where phase noise and jitter directly impact system dynamic range and measurement accuracy.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LMK03318RHSTL1 datasheet?
LMK03318RHSTL1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LMK03318RHSTL1?
Compatible alternatives and drop-in replacements for LMK03318RHSTL1:
PLL Based Clock Driver, LMK Series, 16 True Output(s), 0 Inverted Output(s), PQCC48
PLL Based Clock Driver, LMK Series, 16 True Output(s), 0 Inverted Output(s), PQCC48
Frequently Asked Questions
What is the jitter performance of the LMK03318RHSTL1?
The LMK03318RHSTL1 is designed for ultra-low jitter clock generation, targeting sub-100 femtosecond (fs) RMS jitter in its output clocks. This performance level is critical for driving high-speed ADC and DAC sampling clocks where excess jitter directly degrades signal-to-noise ratio and effective number of bits (ENOB) in data conversion applications.
What package does the LMK03318RHSTL1 use?
The LMK03318RHSTL1 is housed in a 48-pin WQFN (Wafer-level Quad Flat No-Lead) package with an exposed thermal pad for improved heat dissipation. The 'L1' suffix indicates tape-and-reel packaging format. The small WQFN footprint minimizes PCB area while providing the low-inductance connections essential for clean high-frequency clock signal routing.
What temperature range does the LMK03318RHSTL1 support?
The LMK03318RHSTL1 operates over an industrial temperature range of -40C to +85C, making it suitable for deployment in outdoor telecom equipment, industrial instrumentation, and automotive-adjacent applications where ambient temperatures vary significantly beyond commercial 0C to 70C limits.
How is the LMK03318RHSTL1 configured and controlled?
The LMK03318RHSTL1 is configured via a serial SPI or I2C interface, allowing the host processor to program PLL feedback dividers, output dividers, output formats (LVPECL, LVDS, LVCMOS), and power-down modes. Texas Instruments provides TICSPRO-SW GUI software and register-map documentation to simplify device configuration during system bring-up and production programming.
What is the difference between LMK03318 and other LMK clock devices like LMK04828?
The LMK03318 is a single-PLL clock generator targeting ultra-low jitter applications with a simpler architecture and lower cost compared to the dual-loop LMK04828. The LMK04828 offers a jitter cleaner (clock conditioner) function with an additional PLL for reference cleanup, making it better for applications with a noisy reference input. The LMK03318 is preferred when a clean reference is already available and only frequency synthesis and distribution are needed.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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