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Analog Devices Inc. ADF535x微波宽带合成器

Analog Devices ADF535x微波宽带合成器与外部环路滤波器和外部基准频率结合使用时，可以集成小数分频或整数分频锁相环 (PLL) 频率合成器。ADF535x使用一系列分频器，可以在54MHz到6800MHz范围内运行。ADF535x合成器包括具有3400MHz至6800MHz基波输出频率的集成VCO。设计人员可以通过连接1、2、4、8、16、32或64个电路将VCO频率分频，以产生低至53.125MHz的射频输出频率。ADF535x的宽带微波VCO设计允许在一个射频 (RF) 输出实现6.8GHz至13.6GHz的工作频率。ADF535x合成器采用3.15V至3.45V模拟和数字电源工作。该合成器还采用了4.75V至5.25V电荷泵和VCO电源。如果应用需要隔离，设计人员可将射频输出级设为静音。设计人员还可以使用简单的3线接口来控制片上寄存器。

Designers can divide the VCO frequency by 1, 2, 4, 8, 16, 32, or 64 circuits to generate RF output frequencies down to 53.125MHz. The ADF535x's wideband, microwave VCO design enables 6.8GHz to 13.6GHz operation at one RF output. The ADF535x synthesizers operate using 3.15V to 3.45V analog and digital power supplies. The synthesizers also use a 4.75V-5.25V charge pump and VCO supplies. If an application requires isolation, designers can mute the RF output stage. The designers can also control the on-chip registers using a simple 3-wire interface.

特性

  • RF output frequency range: 53.125MHz to 13.6GHz
  • Fractional-N synthesizer and integer-N synthesizer
  • High-resolution 38-bit modulus and 52-bit modulus
  • Phase frequency detector (PFD) operation to 125MHz
  • Reference frequency operation to 600MHz
  • Maintains frequency lock over −40°C to 85°C
  • Low phase noise, voltage controlled oscillator (VCO)
  • Programmable divide by 1, 2, 4, 8, 16, 32, or 64 output
  • Analog and digital power supplies: 3.3V
  • Charge pump and VCO power supplies: 5V, typical
  • Logic compatibility: 1.8V
  • Programmable dual modulus prescaler of 4/5 or 8/9
  • Programmable output power level
  • RF output mute function
  • Analog and digital locks detect
  • Supported in the ADIsimPLL design tool

应用

  • Wireless infrastructure (LTE, W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT)
  • Point to point/point to multipoint microwave links
  • Satellites and Very Small Aperture Terminals (VSATs)
  • Test equipment/instrumentation
  • Clock generation
发布日期: 2016-08-29 | 更新日期: 2022-03-11