Up to 9.8GHz frequency range, PLL phase noise performance

TI announced the release of industry-leading Phase-locked Loop (PLL) products with an integrated Voltage-controlled Oscillator (VCO). The new LMX2582 and LMX2592 provide the industry's lowest phase noise with a single-chip architecture, delivering a level of performance previously only possible through multiple discrete devices.

These new broadband products support output frequencies up to 9.8 GHz, enabling a single device to support the wide frequency bands required for applications such as test and instrumentation, defense, microwave backhaul, satellite, and wireless communications equipment. (For more information, please refer to www.ti.com/lmx25x2-pr-kr)

Key features and advantages of the LMX2582 and LMX2592 include best-in-class VCO phase noise performance: with a 1.8 GHz carrier open-loop VCO phase noise of -144.5 dBc/Hz at a 1 MHz offset, these devices are PLL products with an integrated VCO that meet the multi-carrier radio GSM (Global System for Mobile) communication standard.

In addition, these products have the lowest normalized PLL noise floor in the industry at -231 dBc/Hz and the highest phase detector frequency at 400 MHz, with extremely low integrated noise and 47 fs RMS jitter. This allows the low noise floor requirements needed when clocking high-speed data converters, such as TI's industry-leading RF sampling product, the ADC12J4000.

By expanding the frequency range so that multiple narrowband devices are not required, the LMX2592 supports from 20 MHz to 9.8 GHz and the LMX2582 supports up to 5.5 GHz, allowing developers to use a single PLL in various wideband system designs.

It manages power supply fluctuations and improves noise immunity by integrating a low-dropout regulator (LDO) into an easy-to-develop integrated architecture. Additionally, it provides a channel divider, allowing developers to configure up to two differential outputs.

Simplify design using TI's WEBENCH® clock architecture online design tool

TI also provides tools to reduce design time. By offering an Evaluation Module (EVM), engineers can evaluate the performance of the LMX2592 and LMX2582 more easily and quickly. Currently, the LMX2592EVM and LMX2582EVM are available for purchase at the TI store and authorized distributors for $299 USD.

You can simplify design work using TI’s WEBENCH® Clock Architecture online design tool, as well as other TI clock and timing products, including the LMX2592 and LMX2582. This tool recommends single-device or multi-device clock tree solutions from an extensive database containing various devices. In addition, by using this tool, you can optimize PLL loop filter design, phase noise simulation, and clock tree design according to requirements such as performance and cost.

Regarding availability and pricing, the LMX2592 and LMX2582 are currently available in a 40-pin 6mm x 6mm QFN (quad flat no-lead) package. The price is $19 per unit for the LMX2592 and $9 per unit for the LMX2582, based on a quantity of 1,000.