8V19N850DNLGI

8V19N850DNLGI is a fully integrated radio unit clock synchronizer and converter clock generator designed as a high-performance clock solution for phase/frequency synchronization and signal conditioning of wireless base station radio equipment. The device supports JESD204B/C subclass 0 and 1 device clocks and SYSREF synchronization for converters. The 8V19N850 supports two independent frequency domains: one that can be used for the digital clock (Ethernet and FEC rates) domain with four outputs, and the device clock (RF-PLL) domain with 12 outputs. The Ethernet domain generates frequencies from two independent APLLs for flexibility; the outputs of the RF clock domain generate very low phase noise clocks for ADC/DAC circuits. From the integrated RF-PLL, the device supports the clock generation of high-frequency device clocks for driving ADC/DAC devices low-frequency synchronization signals (SYSREF).

• 2 differential clock reference inputs of 1PPS (1Hz) to 1GHz input frequency
• Dual DPLL front-end with independent clock paths
• Reference monitors for input LOS, activity and frequency
• 1 external synchronization input for JESD204B/C (LVCMOS)
• 16 differential outputs
• Dedicated phase management capabilities
• Optimized for low phase noise-device clocks: -149.9dBc/Hz (1MHz offset; 245.76MHz clock)
• 3/4-wire SPI or 2-wire I3C, pin-mapped, for phase/frequency control and other configurations
• Available in 10 × 10 mm 88-VFQFPN package
• Board temperature range from -40°C to +105°C