STW81103 is an integrated RF synthesizer with voltage controlled oscillators (VCOs) from STMicroelectronics. It features high performance, high integration, low power, and multi-band performances, making it a low cost, high performance, multi-band RF synthesizer.
The STMicroelectronics STW81103 is an integrated RF synthesizer featuring an Integer-N frequency synthesizer and two fully integrated Voltage Controlled Oscillators (VCOs). Designed with a 0.35 um SiGe process, it offers high performance, low power consumption, and multi-band capabilities suitable for 2.5G and 3G cellular infrastructure, CATV, and instrumentation applications.
The device includes dual differential integrated VCOs with automatic center frequency calibration, covering frequency ranges from 625 MHz to 5 GHz via direct output or internal division. It features a fast lock time of 150 microseconds, a programmable reference frequency divider, and dual digital bus interfaces (SPI and I2C) for configuration and control.
| Frequency Range (Direct Output) | 2500 - 3050 MHz and 48350 - 5000 MHz |
|---|---|
| Frequency Range (Divided by 2) | 1250 - 1525 MHz and 2175 - 2500 MHz |
| Frequency Range (Divided by 4) | 625 - 762.5 MHz and 1087.5 - 1250 MHz |
| Power Supply | 3.3 V |
| Package Type | VFQFPN28 |
| Package Dimensions | 5mm x 5mm x 1.0 mm |
| Process Technology | 0.35 um SiGe |
The device supports a dual digital bus interface including SPI and I2C bus (fast mode) with a 3-bit programmable address.
Yes, the device includes a power down mode that can be activated via both hardware and software controls.