The STMicroelectronics STW81102 is an integrated RF synthesizer with voltage controlled oscillators (VCOs). Showing high performance, high integration, low power, and multi-band performances, the STW81102 is a low-cost one-chip alternative to discrete PLL and VCOs solutions.

The STW81102 includes an Integer-N frequency synthesizer and two fully integrated VCOs featuring low phase noise performance and a noise floor of -155 dBc/Hz.

The combination of wide frequency range VCOs (using center-frequency calibration over 32 subbands) and multiple output options (direct output, divided by 2 or divided by 4) allows coverage from 750 MHz to 905 MHz and 1000MHz to 1162.5 MHz, from 1500MHz to 1810 MHz and 2000 MHz to 2325MHz, from 3000 MHz to 3620 MHz and 4000MHz to 4650 MHz bands.

The STW81102 is designed with STMicroelectronics advanced 0.35µm SiGe process.

意法半导体是一个集成的射频合成器STW81102和压控振荡器（VCO）。呈现出高性能、高集成度、低功耗、多频段的性能，是一种低成本的单芯片STW81102替代PLL和VCO的离散解。

包含一个整数N分频频率合成器的STW81102和完全集成的压控振荡器具有低相位噪声性能和噪声地板- 155 dBc / Hz。

宽频率范围的压控振荡器的组合（32子带采用中心频率校准）和多个输出选项（直接输出，除以2或除以4）允许范围从750兆赫至905兆赫和1162.5兆赫1000MHz，从近年来的1810兆赫和2000兆赫到2325mhz，从3000兆赫到3620兆赫，4000mhz 4650兆赫波段。

采用意法半导体的STW81102先进的0.35µm SiGe工艺。

Key Features

• Integer-N frequency synthesizer

• Dual differential integrated VCOs with automatic center frequency calibration:

  3000 - 3620 MHz (Direct output) 4000 - 4650 MHz (Direct output) 1500 - 1810 MHz (Internal divider by 2) 2000 - 2325 MHz (Internal divider by 2) 750 - 905 MHz (Internal divider by 4) 1000 - 1162.5 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 with 3 bit programmable address (1100A₂A₁A₀)

• 3.3V power supply

• Power down mode (HW and SW)

• Small size exposed pad VFQFPN28 package 5x5x1.0mm

• Process: BICMOS 0.35μm SiGe

主要特点

频率合成器

自动中心频率校准的双差分VCO的集成：3000 - 3620 MHz（直接输出）4000 - 4650兆赫（直接输出）1500 - 1810 MHz（2内部分频器）2000 - 2325 MHz（2内部分频器）750 - 905 MHz（4内部分频器）1000 - 1162.5 MHz（4内部分频器）

良好的综合相位噪声

快速锁定时间：150

双模量可编程分频器（16 / 17或19 / 20）

2可编程计数器来实现反馈分频比从256到65551（预分频器的16 / 17）和从361到77836（预分频器的19 / 20）。

可编程参考分频器（10位）

相位频率比较器和电荷泵

可编程电荷泵电流

数字锁相检测器

双数字总线接口：SPI和I2C总线的3位可编程的地址（1100a2a1a0）

3.3V的电源

掉电模式（硬件和软件）

小尺寸封装5x5x1.0mm裸露焊盘vfqfpn28

0.35μm SiGe BiCMOS工艺