Features
- Fully integrated Galileo/GPS L1/E5a Receiver
- VCC = 1.5V with 3.3V digital interface, Low power consumption
- Pure CMOS technology
- Very low BOM
- All-purpose applications, works with active and passive antennas
- 2 bit ADC on chip
- Supports Ref Clocks from 13-70 MHz in L1 mode and 62.7-66.188 MHz in E5a mode
- Operating temperature range: –40 – +85 °C
General Description
IMST’s Galileo/GPS RF-IC receiver solution is a fully integrated, low cost satellite navigation Front-end capable of receiving GPS L1 as well as Galileo L1/E5a OS signals. Nearly all the external components are integrated, except an SAW filter, a reference clock source (TCXO) and a simple 3-element PLL loop filter. Designed as a general purpose device, the Frontend works both with active and passive antennas and can be adopted for the most important applications like car navigation and location based services.
The receiver is designed to have a nominal power consumption below 40mW and a supply voltage of 1.5V. The receiver is using a Low-IF architecture and a poly phase filter (PPF) for image suppression. The signal is sampled by an 2 Bit ADC. An internal AGC controls the input level at the ADC. The synthesizer architecture is based on a ?S PLL in order to support different clock sources. The receiver front-end is controlled by an SPI controller interface. The radio Front-end is designed to work with a modern 1.5V CMOS technology.
