1 Features

1? Quad transmitters based on direct up-conversion

architecture:

– Up to 600 MHz of RF transmitted bandwidth

per chain

? Quad receivers based on 0-IF down-conversion

architecture:

– Up to 200 MHz of RF received bandwidth per

chain

? Feedback chain based on RF sampling ADC:

– Up to 600 MHz of RF received bandwidth

? RF frequency range: 600 MHz to 6 GHz

? Four wideband fractional-N PLL, VCO for TX and

RX LO

? Dedicated integer-N PLL, VCO for data converters

clock generation

? JESD204B and JESD204C SerDes interface

support:

– 8 SerDes transceivers up to 29.5 Gbps

– 8b/10b and 64b/66b encoding

– 16-bit, 12-bit, 24-bit and 32-bit formatting

– Subclass 1 multi-device synchronization

? Package: 17-mm × 17-mm FCBGA, 0.8-mm pitch

2 Applications

? Macro remote radio unit (RRU)

? Small cell base station

? Active antenna system mMIMO (AAS)

? Distributed Antenna Systems (DAS)

? Repeater

3 Description

The AFE7769 device is a high-performance,

multichannel transceiver, integrating four direct upconversion

transmitter chains, four direct downconversion

receiver chains, and two wideband RF

sampling digitizing auxiliary chains (feedback paths).

The high dynamic range of the transmitter and

receiver chains enables wireless base stations to

generate and receive 2G, 3G, 4G, and 5G signals.

The low power dissipation and large channel

integration of the AFE7769 allows the device to

address the power and size constraints of 4G and 5G

massive MIMO base stations. The wideband and high

dynamic range feedback path can assist the Digital

Pre-Distortion (DPD) of the power amplifiers in the

transmitter chain. The fast SerDes speed can help

reduce the number of lanes required to transfer the

data in and out.