AD9520-4BCPZ

The AD9520-4BCPZ from Analog Devices is a multi-output clock distribution IC featuring a Phase-Locked Loop (PLL) and an integrated Voltage-Controlled Oscillator (VCO). The on-chip VCO tunes from 1.4 GHz to 1.8 GHz, providing flexibility for various clock generation needs. This device offers 12 LVPECL outputs, which can be reconfigured as 2 CMOS outputs for frequencies up to 250 MHz. It supports input references including CMOS, LVDS, and LVPECL up to 250 MHz, as well as crystal references from 16.62 MHz to 33.3 MHz.

Key electrical specifications include a maximum operating frequency of 1.8 GHz and a nominal operating voltage range of 3.135V to 3.465V. The device boasts low additive output jitter as low as 225 fs rms and channel-to-channel skew under 16 ps for grouped outputs, making it suitable for high-performance applications requiring precise clocking.

The AD9520-4BCPZ is housed in a 64-lead LFCSP package and is designed for surface mounting. It operates within a temperature range of -40°C to 85°C. The device supports SPI and I²C compatible serial control ports for configuration and features nonvolatile EEPROM for storing settings.

Applications for the AD9520-4BCPZ include low jitter, low phase noise clock distribution, clock generation and translation for SONET, 10GE, 10GFC, Synchronous Ethernet, and OTU2/3/4. It is also suitable for clocking high-speed ADCs, DACs, DDSs, and high-performance wireless transceivers.