技术特性

• Integer-N frequency synthesizer
• Dual differential integrated VCOs with automatic center frequency calibration:
  • 2500 - 3050 MHz (direct output)
  • 4350 - 5000 MHz (direct output)
  • 1250 - 1525 MHz (internal divider by 2)
  • 2175 - 2500 MHz (internal divider by 2)
  • 625 - 762.5 MHz (internal divider by 4)
  • 1087.5 - 1250 MHz (internal divider by 4)
• Excellent integrated phase noise
• Fast lock time: 150µs
• Dual modulus programmable prescaler (16/17 or 19/20)
• 2 programmable counters to achieve a feedback division ratio from 256 to 65551 (prescaler 16/17) and from 361 to 77836 (prescaler 19/20).
• Programmable reference frequency divider (10 bits)
• Phase frequency comparator and charge pump
• Programmable charge pump current
• Digital lock detector
• Dual digital bus interface: SPI and I²C bus (fast mode) with 3 bit programmable address (1100A2A1A0)
• 3.3V power supply
• Power down mode (hardware and software)
• Small size exposed pad VFQFPN28 package 5mm x 5mm x 1.0mm
• Process: BICMOS 0.35µm SiGe

功能框图