1 Features

• Octal RF sampling 12-GSPS transmit DACs

• Octal RF sampling 4-GSPS receive ADCs

• Dual RF sampling 4-GSPS feedback ADCs

• Maximum RF signal bandwidth:

– TX/FB: 800 MHz.

• 1200 MHz in 4-channel mode

– RX: 400 MHz

• 800 MHz in 4-channel mode

• RF frequency range: up to 6GHz

• Digital Step Attenuators (DSA):

– TX: 40-dB range, 1-dB analog and 0.125-dB

digital steps

– RX/FB: 31/25-dB range, 1-dB step

• Single or dual-band DUC/DDCs

• Dual NCO’s per chain for fast frequency switching

• Supports TDD operation with fast switching

between TX and RX

• Internal PLL/VCO to generate DAC/ADC clocks

• Optional external CLK at DAC or ADC rate

• SerDes data interface:

– JESD204B and JESD204C

– 8 SerDes transceivers up to 32.5 Gbps

– 8b/10b and 64b/66b Encoding

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

– Subclass 1 multi-device synchronization

• Package:

– 17-mm × 17-mm FCBGA, 0.8-mm pitch

2 Applications

• Macro remote radio unit (RRU)

• Active antenna system mMIMO (AAS)

• Small cell base station

• Distributed Antenna Systems (DAS)

• Repeater

3 Description

The AFE8030 is a high performance, wide bandwidth

multi-channel transceiver, integrating eight RF

sampling transmitter chains, eight RF sampling

receiver chains and two separate RF front end for the

auxiliary chains (feedback paths). The high dynamic

range of the transmitter and receiver chains allows

generating and receiving 3G, 4G and 5G signals

for wireless base stations, while the wide bandwidth

capability makes the AFE8030 devices suitable for

multi-band 4G and 5G base stations.

Each receiver chain includes a 31-dB range DSA

(Digital Step Attenuator), followed by a 4-GSPS

ADC (analog-to-digital converter). Each receiver

channel has analog peak power detectors and digital

peak and power detectors to assist an external or

internal autonomous automatic gain controller, and

RF overload detectors for device reliability protection.

The single or dual digital down converters (DDC)

provides up to 400 MHz of combined signal BW in

8-channel mode and 800 MHz in 4-channel mode. In

TDD mode, the receiver channel can be configured

to dynamically switching between traffic receiver (TDD

RX) and wideband feedback receiver (TDD FB), with

the capability of re-using the same analog input for

both purposes.

Each transmitter chain includes a single or dual digital

up converters (DUCs) supporting up to 800-MHz

combined signal bandwidth (1200 MHz in 4-channel

mode). The output of the DUCs drives a 12-GSPS

DAC (digital to analog converter) with a mixed mode

output option to enhance 2nd Nyquist operation. The

DAC output includes a variable gain amplifier (TX

DSA) with 40-dB range and 1-dB analog and 0.125-

dB digital steps.

The feedback path includes a 25-dB range DSA

driving a 4-GSPS RF sampling ADC, followed by a

single wide or dual narrow DDCs with up to combined

800-MHz bandwidth (1200 MHz in 4-channel mode).