GPS APPLICATIONS
- Standalone GPS devices
- Automotive applications
- Portable consumer devices (cell phones, game systems, laptop PCs, PDAs)
- Industrial use GPS systems
- GPS plug-in modules
FEATURES & BENEFITS
- Actively cancels unwanted RF noise in the 1GHz-3GHz frequency range
- Improves receiver sensitivity
- Enables simultaneous operation of multiple co-located radios
- Improves overall quality of service
- Up to 30dB Cancellation Dynamic Range
- Internal LNA in the sampler path to improve sensitivity of the sampler path
- SPI bus interface eliminates the need for external DACs to control the canceller
TYPICAL APPLICATION
PERFORMANCE DATA
PACKAGING/ PIN DIAGRAM INFORMATION
DESCRIPTION
Electromagnetic Interference (EMI) is emerging as a major concern in next generation wireless communication systems. As handsets now support multiple services and features that utilize high data rates simultaneously, removing interference within the handset has become a challenge.
Reducing the Electromagnetic Interference recovers the receiver sensitivity, enables simultaneous operation of multiple radios, and improves the overall quality of service of communication devices. Quellan’s QHx220 is situated in a wireless device to sample the source of the noise and emulate the RF coupling channel between the noise source and victim receiver antenna. In doing so, an anti-noise signal can be applied directly to the victim receive path to cancel the EMI and achieve the signal integrity benefits. This approach makes it possible to cancel both in band (within the victim Rx band) or out of band aggressors. This is a revolutionary approach since it is only possible to cancel out of band noise using conventional Rx filters.
The QHx220 is designed in a standard 0.18μm CMOS process requiring a single 1.8V power supply with typical power consumption of less than 20mW. The QHx220 comes in a standard package of QFN16-3x3 mm2 or may be ordered as bumped die in a CSP 1x1 mm2 package.
ORDERING INFORMATION
Quellan offers the QHx220 Noise Canceller in a Sample Pack of 10 (qty) ICs.
For more information please contact sales@quellan.com
- QHx220 IC Sample Pack (Qty 10) Part # QHX220IQSB
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