Texas Instruments AFE7799 Quad-channel RF Transceivers
Texas Instruments AFE7799 Quad-channel RF Transceivers offer high-performance and multichannel options with feedback paths. The AFE7799 integrates four direct up-conversion transmitter chains, four direct down-conversion receiver chains, and two wideband RF sampling digitizing auxiliary chains (feedback paths).
The Texas Instruments AFE7799 4-channel RF Transceivers provide a high dynamic range of the transmitter and receiver chains, allowing generating and receiving of 2G, 3G, 4G, and 5G signals for wireless base stations. The device is suitable to address the power and size-constrained 4G and 5G massive MIMO base stations with low power dissipation and large channel integration.
The feedback path is based on RF sampling architecture and includes an input RF DSA driving a 14-bit, 3Gsps RF ADC. The direct sampling architecture has an inherently wideband receiver chain and simplifies the calibration of the TX chain impairments. Each feedback path integrates two independent NCOs that allow fast switching between two observed RF input bands.
Features
- Quad transmitters based on direct up-conversion architecture
- Up to 600MHz of RF transmitted bandwidth per chain
- Quad receivers based on 0-IF down-conversion architecture
- Up to 200MHz of RF received bandwidth per chain
- Feedback chain based on RF sampling ADC
- Up to 600MHz of RF received bandwidth
- 600MHz to 6GHz RF frequency range
- 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 29.5Gbps
- 8b/10b and 64b/66b encoding
- 16-bit, 12-bit, 24-bit and 32-bit formatting
- Subclass 1 multi-device synchronization
- 17mm x 17mm BGA, 0.8mm pitch package
Applications
- Telecom 2G, 3G, 4G, 5G macro, micro base stations
- Telecom 4G, 5G massive MIMO base stations
- Telecom 2G, 3G, 4G, 5G small cell
- Microwave backhaul
Block Diagram
Related Development Tool
Texas Instruments AFE7769EVM Evaluation Module
Configured to evaluate the operation of the AFE77xx family of integrated RF transceivers.