Renesas 8V19N850

The 8V19N850 is a fully integrated Radio Unit Clock Synchronizer and Jitter Attenuator 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.

Key features

• Support for JESD204B/C
• Dual DPLL front-end with independent clock paths
• Low phase noise
• Dedicated phase management capabilities

Additional features

• High-performance radio clock synchronizer clock
  • Device clock domain (RF-PLL) with support for JESD204B/C
  • Digital clock domain (Ethernet, FEC) with support for eEEC and T-BC/T-TSC Class C
• 2 differential clock reference inputs
  • 1PPS (1 Hz) to 1 GHz input frequency
• Dual DPLL front-end with independent clock paths
  • External control of the DCO for IEEE1588
  • Digital holdover with a 1.1 × 10-7 ppb accuracy
  • Programmable DPLL loop bandwidth 1 mHz to 6 kHz
  • Configurable phase delay (range: 1 UI)
  • Hitless input switching with < 1 ns output phase error
• 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: -149.9 dBc/Hz (1 MHz offset; 245.76 MHz clock)
• Supply voltage (core): 3.3 V; (outputs): 3.3 V, 2.5 V, and 1.8 V
• Package: 88-VFQFPN (10 × 10 mm²)
• Board temperature range: -40 °C to +105 °C

Applications

• Wireless infrastructure applications: 4G, 5G, and mmWave
• Data acquisition: jitter-sensitive ADC and DAC circuits
• Radar, imaging, instrumentation, and medical

Available tools

Eval kit, orderable part number: 8V19N850-EVK