Intersil QHX220
QHx220 is situated in a handset to sample the source of the noise and emulate the RF coupling channel between the noise source and victim receiver antenna. 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.| Part No. | QHX220 |
|---|---|
| Datasheet | QHX220 Download |
| Manufacturer |  Intersil |
| Description | Active Isolation Enhancer and Interference Canceller |
| Buy | Stock & Price |
FEATURES
● Protocol agnostic. Designed for: GSM, CDMA, DVB-H, ISDB-T, DMB● Frequency Range 300MHz to 3GHz
● Integrated, programmable LNA gain stages in the sampler path
● SPI bus controlled integrated DACs
● >20dB Noise Cancellation is possible
● 50dB typical Dynamic Range
● Low Power Consumption (<20mW typical, ~2µW standby)
● Ultra Small ~ 1mm2 devices are available as tested bumped die or 3x3mm2 QFN package
APPLICATIONS
● Most any wireless device with a local aggressor: - Cell phones - Mobile TV devices - Laptop Computers - GPS terminals - Pico- and Femtocells● Improved Tx to Rx Isolation of devices (i.e. duplexer, switches) or between neighboring antennae
● Basestations
● Linearization of PAs Typical Application Circuit Benefits
● Actively cancels unwanted local RF noise
● Improves BER, receiver sensitivity, C/N by canceling noise generated from local aggressors
● Improves isolation between adjacent antennas
● Can be used to cancel in-band or out-of-band interferers (i.e. spurs,...
