HMC704LP4ETR

The HMC704LP4ETR is an 8 GHz Fractional-N Phase-Locked Loop (PLL) Integrated Circuit designed by Hittite Microwave. Fabricated in a SiGe BiCMOS process, this PLL IC offers a wide band RF input frequency range from DC to 8 GHz, with a prescaler operating up to 4 GHz.

Key features include industry-leading phase noise and spurious performance, with a phase noise of -112 dBc/Hz at 8 GHz fractional and 50 kHz offset. It boasts a Figure of Merit of -230 dBc/Hz in fractional mode and -233 dBc/Hz in integer mode with a 100 MHz PFD rate. The device supports a high PFD rate of 100 MHz and an exact frequency mode with a 24-bit fractional modulator for zero frequency error.

This PLL IC is ideal for applications such as microwave point-to-point radios, base stations for mobile radio, wireless LANs, WiMAX, communications test equipment, CATV equipment, and automotive systems. It is housed in a 24-lead, 4x4 mm SMT package, occupying a small footprint of 16 mm2.

The HMC704LP4ETR is designed for optimal phase noise and low spurious content, enabling wide loop bandwidths for faster frequency hopping and reduced micro-phonics. Its serial interface provides read-back capability and compatibility with various protocols.