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AFE79XX-WI-DESIGN — AFE79xx Design Resources for Wireless infrastructure
AFE79xx Design Resources for Wireless infrastructure
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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檢視所有 3 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | AFE7922 2T2R RF Sampling AFE with 12GSPS DACs and 3GSPS ADCs datasheet | PDF | HTML | 2025年 7月 1日 |
| Application note | Determining Optimal Receive Buffer Delay in JESD204B and JESD204C Receivers | PDF | HTML | 2022年 7月 7日 | |
| Application note | How to Achieve Frequency Hopping with the AFE79xx | 2020年 7月 2日 |
設計與開發
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開發板
AFE7920EVM — 四發射四接收二回饋路徑射頻取樣收發器的 AFE7920 評估模組
AFE7920 評估模組 (EVM) 是射頻取樣收發器與平台，可配置為支援最多同時四個發射與兩個回饋 (4T4R + 2FB)通道。
評估 AFE7920 裝置的板為配備 14 位元 12-GSPS 數位轉類比轉換器 (DAC)、14 位元 3-GSPS 類比轉數位轉換器 (ADC)，以及適用 DAC 和 ADC 高頻率時脈產生的晶片整合式相鎖迴路 (PLL) 與電壓控制振盪器 (VCO) 之四通道射頻取樣類比前端 (AFE)。
AFE7920EVM 可選擇在每個通道中使用雙數位上變頻器和下變頻器，以同時合成及數位化具有高動態範圍的多個寬頻訊號。支援接收器通道的晶片內建整合式數位步進衰減器 (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| FCBGA (ABJ) | 400 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。