Driver or library
AFE79XX-WI-DESIGN — AFE79xx Design Resources for Wireless infrastructure
AFE79xx Design Resources for Wireless infrastructure
Data sheet
AFE7922
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- Dual RF sampling 12GSPS transmit DACs
- Dual RF sampling 3GSPS receive ADCs
- Maximum RF signal bandwidth: 400MHz
- RF frequency range: 400MHz to 6GHz
- Digital step attenuators (DSA):
- TX: 40dB range, 0.125dB steps
- RX: 25dB range, 0.5dB steps
- Single or dual-band DUC or DDCs
- Optional Internal PLL or VCO for DAC or ADC clocks or external clock at DAC or ADC sample rate
- SerDes data interface:
- JESD204B and JESD204C compatible
- 8 SerDes transceivers up to 29.5Gbps
- Subclass 1 multidevice synchronization
- Package: 17mm × 17mm FCBGA, 0.8mm pitch
The AFE7922 is a high performance, wide bandwidth multichannel transceiver, integrating two RF sampling transmitter chains and two RF sampling receiver chains. The high dynamic range of the transmitter and receiver chains allows the device to generate and receive 3G, 4G, and 5G signals from wireless base stations, while the wide bandwidth capability of the AFE7922 is designed for multiband 4G and 5G base stations.
The TX signal paths support interpolation and digital up conversion options that deliver up to 400MHz of signal bandwidth per TX channel. The output of the DUCs drives a 12GSPS 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 40dB range and 1dB analog and 0.125dB digital steps.
Each receiver chain includes a 25dB range DSA (Digital Step Attenuator), followed by a 3GSPS ADC (analog-to-digital converter). Each receiver channel has an analog peak power detector and various digital power detectors to assist an external or internal autonomous automatic gain controller, and RF overload detectors for device reliability protection. Flexible decimation options provide optimization of signal bandwidth of up to 400MHz per RX channel.
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Technical documentation
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View all 1 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AFE7922 2T2R RF Sampling AFE with 12GSPS DACs and 3GSPS ADCs datasheet | PDF | HTML | 01 Jul 2025 |
Design & development
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Evaluation board
AFE7920EVM — AFE7920 evaluation module for four-transmit four-receive two-feedback-path RF-sampling transceiver
The AFE7920 evaluation module (EVM) is an RF-sampling transceiver platform that can be configured to support up to four-transmit four-receive plus two-feedback (4T4R + 2FB) channels simultaneously.
The board evaluates the AFE7920 device, which is a quad-channel RF-sampling analog front end (AFE) (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| FCBGA (ABJ) | 400 | Ultra Librarian |
Ordering & quality
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