SY1009
Ultra-low noise, rad-hard L-band RF down-converter
Description
The SY1009 represents the ideal choice in the design of new-generation, highly specialized GNSS receivers used in scientific payloads and needing the maximum control of phase noise for challenging applications like circumlunar missions, radioccultation, R-GNSS and microwave radiometry.
This device is designed in a 0.25μm SiGe:C process and includes all the functional blocks needed to implement the complete RF front-end of multiband GNSS receivers,The most important improvements of the SY1009 with respect to the SY1007/SY1017C chip-set are a cleaner PLL with lower noise and spurious content, more stable performance (less temperature dependence, gain modulation, etc.) and support for pairing GNSS signals in adjacent bands up to 50-70MHz bandwidth.
Applications of the SY1009 are also in the domain of antenna arrays and attitude determination.
Features
- Complete, highly integrated RF front-end.
- Rad-hard (R), and space qualified (S) versions.
- Supports all GNSS signals in the L-band.
- modulated fractional-N PLL.
- Low phase noise: −84dBc/Hz typical at 10Hz.
- Compact, low bill-of-materials, small PCB area.
- Low voltage operation: 2.25V to 2.75V.
- Low power consumption:<75mW.
- Supports passive and active antennas.
- Flexible 3MHz to 25MHz reference frequency.
- Wide-band analog IF output, no on-chip filtering.
- SPI interface for configuration and control.
- Compact 6mm x 6mm, 49 balls BGA package.
- Ceramic-metal and plastic package variants.
Signals
- All GNSS signals up to 50-70MHz bandwidth.
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