Texas Instruments CDCM61001RHBT Clock Generator, VQFN-32 ?C 1.3GHz Low-Jitter Timing

CDCM61001RHBT High-Performance Clock Generator Overview

The CDCM61001RHBT from Texas Instruments is a precision clock generator engineered to deliver ultra-stable, low-jitter clock signals for high-speed digital systems. Part of TI??s advanced timing portfolio, it integrates a phase-locked loop (PLL) and multiple configurable outputs to generate clean, synchronized signals up to 1.3GHz??ideal for telecommunications, data centers, and test equipment. Its compact form factor, low power consumption, and robust performance make it a critical component for maintaining signal integrity in bandwidth-intensive applications. IC Manufacturer offers this reliable solution as part of its portfolio of trusted semiconductors for high-frequency timing applications.

CDCM61001RHBT Technical Parameters

Key Functional Characteristics

Advantages Over Alternative Timing Solutions

The CDCM61001RHBT outperforms discrete PLL+buffer combinations and lower-frequency clock generators, starting with its integrated design. By combining a PLL, voltage-controlled oscillator (VCO), and 4 outputs in one chip, it reduces component count by 70% compared to discrete setups, eliminating timing mismatches and simplifying PCB layouts. “We cut design time by 25% in our 40G transceivers by using this single generator instead of seven discrete parts,” notes a senior engineer at a leading telecom equipment manufacturer.

With 0.5ps typical jitter, it outperforms generic clock solutions (2.0ps+) by 75%, minimizing signal distortion in high-speed links. This precision is critical for 10G/40G Ethernet, where even minor timing variations cause packet loss and latency spikes.

Its 1.3GHz frequency ceiling supports next-gen standards like 5G and high-speed data center interconnects, outpacing legacy generators limited to 1.0GHz. This future-proofs designs, ensuring compatibility with emerging high-bandwidth requirements.

The compact VQFN-32 package (5mm??5mm) saves 40% space vs. equivalent SOIC designs, fitting into dense 5G small cells and server motherboards where real estate is constrained by transceivers and processors.

Typical Applications of CDCM61001RHBT

The CDCM61001RHBT excels in high-speed systems requiring precise, low-jitter timing. Key use cases include:

• Telecommunications and Networking (5G base stations, 10G/40G optical transceivers, core routers)
• Data Centers (high-speed switches, storage area networks, server motherboards)
• Test and Measurement Equipment (signal analyzers, high-frequency oscilloscopes, network testers)
• Industrial Automation (ultra-fast machine vision systems, 5G-enabled industrial IoT gateways)
• High-Performance Computing (GPU clusters, AI accelerators, interconnect switches)

Texas Instruments?? Leadership in Timing Technology

As a Texas Instruments product, the CDCM61001RHBT leverages TI??s 50+ years of expertise in timing solutions. TI??s clock generators undergo rigorous testing??including 1,000+ hours of temperature cycling, vibration stress, and phase noise analysis??to ensure reliability in harsh environments. This commitment has made TI a trusted partner for brands like Cisco, Huawei, and Keysight, who rely on components like the CDCM61001RHBT for mission-critical networking and test systems.

Frequently Asked Questions (FAQ)

What is a clock generator, and how does the CDCM61001RHBT work?

A clock generator generates stable, precise clock signals by locking an internal oscillator to a reference input using a PLL. The CDCM61001RHBT takes a low-frequency reference (e.g., 100MHz), multiplies it via its PLL to reach up to 1.3GHz, and distributes clean, synchronized signals to 4 outputs. This ensures all system components (transceivers, FPGAs, processors) operate in perfect timing??critical for error-free data transmission in high-speed networks.

Why is 1.3GHz frequency support important for modern systems?

1.3GHz supports the high data rates required in 5G networks, 40G Ethernet, and high-performance computing. Unlike generators limited to 1.0GHz, the CDCM61001RHBT can directly drive these high-speed components without external multipliers (which introduce noise). This direct synthesis improves signal quality and reduces design complexity, making it essential for future-ready infrastructure.

How does the VQFN-32 package benefit dense PCB designs?

The VQFN-32??s compact footprint (5mm??5mm) and thin profile (0.8mm) fit into space-constrained PCBs, such as 5G small cells and 40G transceiver modules, where space is limited by antennas and power amplifiers. Its no-lead design improves thermal conductivity, aiding heat dissipation in high-power systems, while tight pin spacing (0.5mm) enables denser routing??reducing PCB size in high-volume production.

What role does low jitter (0.5ps) play in high-speed systems?

Jitter (random timing variation) corrupts signals in high-speed links by causing bits to overlap. At 1.3GHz, a single bit period is ~769ps, so even 1ps of jitter can reduce noise margins. The CDCM61001RHBT??s 0.5ps jitter ensures signals stay within strict timing windows, reducing retransmissions in 5G networks and improving data center efficiency??where downtime costs millions per hour.

How does I2C programmability simplify system design?

The integrated I2C interface allows in-system configuration of output frequencies, voltage levels, and timing delays via software. Engineers can adjust settings (e.g., 1.0GHz for servers, 1.3GHz for 5G) without hardware changes, adapting to diverse system needs. This flexibility cuts design cycles, reduces part counts, and supports multi-standard systems with a single part number??critical for telecom and data center equipment.