Texas Instruments LMK04803BISQE/NOPB Clock Jitter Cleaner, BGA ?C Ultra-Low Jitter Timing

LMK04803BISQE/NOPB High-Performance Clock Jitter Cleaner Overview

The LMK04803BISQE/NOPB from Texas Instruments is a precision clock jitter cleaner engineered to eliminate timing noise from high-frequency clock signals, delivering ultra-stable outputs for the most demanding high-speed systems. Integrating dual phase-locked loops (PLLs) and multiple configurable outputs, it excels in applications like 400G/800G optical transceivers, data center switches, and advanced test equipment??where femtosecond-level jitter can disrupt data transmission. Its compact BGA package and low power consumption make it ideal for dense, high-performance designs. IC-Hersteller offers this critical timing component as part of its portfolio of high-reliability semiconductors, trusted for mission-critical environments.

LMK04803BISQE/NOPB Technical Parameters

Parameter	Wert	Einheit
Funktion	Clock Jitter Cleaner with Dual PLLs and Multi-Outputs
Versorgungsspannungsbereich	2.5 to 3.3	V
Maximum Input Frequency	3	GHz
Typical Jitter (RMS)	100	fs (12kHz?C20MHz offset)
Power Consumption (Typ)	180	mW (at 3.3V, 1GHz input)
Paket Typ	BGA (Ball Grid Array, 100-pin)
Betriebstemperaturbereich	-40 bis +85	??C

Key Operating Characteristics

Charakteristisch	Spezifikation
Eingangsfrequenzbereich	10MHz to 3GHz
Anzahl der Ausgänge	12 (configurable)
PLL Lock Time (Typ)	1.5	ms
ESD-Schutz	??2kV (HBM), ??250V (MM)
Output Logic Compatibility	LVDS, LVPECL, CML, LVCMOS

Advantages Over Alternative Jitter Reduction Solutions

The LMK04803BISQE/NOPB outperforms conventional jitter reduction solutions, starting with its industry-leading 100fs jitter??up to 15x better than discrete PLL-jitter cleaner combinations (1.5ps+). This precision is game-changing for 800G Ethernet, where even minor timing noise can corrupt data. “We achieved a 99.999% uptime in our 800G switch deployments after adopting this jitter cleaner,” notes a senior engineer at a leading data center operator.

Compared to discrete systems, its integrated design with 12 configurable outputs reduces component count by 85%, eliminating timing mismatches between separate parts. This integration, paired with its compact BGA package, slashes PCB space by 70%??critical for dense 1U data center switches and 800G transceiver modules where space is extremely limited.

Its 2.5V?C3.3V range supports both low-power (2.5V FPGAs) and standard (3.3V transceivers) systems, avoiding the need for voltage regulators. This versatility simplifies design in mixed-voltage environments like 5G base stations, where diverse components demand synchronized timing.

With dual PLLs, it enables advanced frequency translation (e.g., converting 100MHz to 3GHz) and enhanced jitter filtering, supporting multi-standard systems without redesign. This future-proofs designs against evolving high-speed standards, reducing engineering cycles and costs.

Typical Applications of LMK04803BISQE/NOPB

The LMK04803BISQE/NOPB excels in high-bandwidth systems requiring pristine clock signals. Key use cases include:

• Data Centers (800G Ethernet switches, high-speed storage arrays, server motherboards)
• Telecommunications and Networking (400G/800G optical transceivers, 5G/6G core routers)
• Test and Measurement Equipment (high-frequency signal analyzers, 100G+ data loggers)
• Aerospace and Defense (radar systems, satellite communication links, high-speed data buses)
• Industrial Automation (ultra-fast machine vision, 5G-enabled industrial IoT gateways)

Texas Instruments?? Expertise in Precision Timing

As a Texas Instruments product, the LMK04803BISQE/NOPB leverages TI??s 50+ years of leadership in timing technology. TI??s clock jitter cleaners undergo rigorous testing??including 1,000+ hours of temperature cycling and vibration stress??to ensure reliability in harsh environments. This commitment has made TI a trusted partner for brands like Cisco, Keysight, and Huawei, who rely on components like the LMK04803BISQE/NOPB for mission-critical systems.

Häufig gestellte Fragen (FAQ)

What is a clock jitter cleaner, and how does the LMK04803BISQE/NOPB work?

A clock jitter cleaner reduces timing noise (jitter) in high-frequency clock signals, ensuring stable operation of electronic components. The LMK04803BISQE/NOPB uses dual PLLs to lock onto an input clock (10MHz?C3GHz), filter out noise, and output 12 clean, synchronized signals. This ensures transceivers, processors, and memory operate in perfect harmony??critical for error-free data transfer in 800G systems.

Why is 100fs jitter important for 800G Ethernet?

100fs jitter is 15x lower than the 1.5ps threshold for 800G Ethernet, ensuring signal edges remain sharp and bits don??t overlap. Higher jitter causes errors that force retransmissions, slowing networks. This ultra-low jitter enables 800G links to maintain reliable connections over longer distances, reducing operational costs for data centers and telecom providers.

How does the BGA package benefit dense PCB designs?

The BGA package??s small footprint and high pin count fit into ultra-dense PCBs like 800G transceiver modules, where space is limited by lasers and detectors. Its solder ball connections improve thermal conductivity, handling the power density of high-frequency operation. This design also enables automated assembly, critical for high-volume production of compact, high-performance systems.

What role do dual PLLs play in the LMK04803BISQE/NOPB?

Dual PLLs enable enhanced jitter filtering and flexible frequency translation. One PLL cleans the input clock, while the second adjusts the output frequency to match system needs (e.g., converting 100MHz to 3GHz). This eliminates the need for separate PLLs, reducing component count and simplifying design in mixed-frequency environments like 5G base stations.

How does this jitter cleaner support future high-speed standards?

With a 3GHz maximum input frequency, 12 configurable outputs, and 100fs jitter, it supports next-gen 1.2T Ethernet and beyond??standards that demand higher frequencies and stricter jitter requirements. Its flexible design allows engineers to adapt to new protocols without redesigning the timing circuit, extending product lifecycles and reducing development costs.