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.