Taking place in Cambridge at Motiv8 Forums LED & Lighting / RF & Wireless Design Forum on the 24th (Free to attend):

High Dynamic Range IF Receiver Simplifies Point-to-Point Design

The increase in data traffic is driving the capacity of Microwave backhaul. A brief discussion of the AD6676 and surrounding signal chain’s role in supporting the requirements of future generations of microwave links.
 
To increase data rates, next generation microwave point-to-point radios will utilize higher QAM modulation and channel bandwidths up to 112 MHz, and they must have the dynamic range to maintain BER performance with signal fading. Advances in ADC and DAC technology are enabling modem transceivers to support these changes, while also simplifying the architecture. For split IDU/ODU systems, wideband IF receivers such as the AD6676 offer exceptionally high dynamic range to ensure excellent modulation accuracy (EVM) in the presence of adjacent interfering signals, without needing complicated tunable or bulky switched-bank filters. For single ODU systems where the receiver can directly interface with the down-converting mixer, the high instantaneous dynamic range of the receiver reduces RF filtering requirements and the RF AGC range to compensate for fading
 
David McCarthy. Applications Engineer – Analog Devices

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