AFE8128
-
Eight (AFE8128)/ four (AFE8124) RF sampling 12GSPS transmit DACs
- Eight (AFE8128)/ four (AFE8124) RF sampling 6GSPS receive ADCs
- Two RF sampling 6GSPS feedback ADCs
- Maximum RF signal bandwidth:
- TX/FB: 880MHz.
- RX: 800MHz
- RF frequency range: 400MHz to 7.2GHz
- Digital Step Attenuators (DSA):
- TX: 39dB range, 1dB analog and 0.125dB digital steps
- RX/FB: 31dB range, 1dB step
- Dual DUC/DDCs per chain
- 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, JESD204C
- 8 SerDes transceivers up to 32.5Gbps (NRZ)
- 12-bit, 16-bit, 24-bit, and 32-bit resolution
- Subclass 1 multi-device synchronization
- Package:
- 17mm × 17mm FCBGA, 0.8mm pitch
The AFE812x is a high performance, wide bandwidth multi-channel transceiver, integrating eight (AFE8128) / four (AFE8124) RF sampling transmitter chains, eight (AFE8128) / four (AFE8124) RF sampling receiver chains and two separate RF sampling auxiliary chains (feedback paths). The high dynamic range of the transmitter and receiver chains allows generating and receiving 2G, 3G, 4G and 5G signals for wireless base stations, while the wide bandwidth capability makes the AFE812x an excellent choice for multi-band 4G and 5G base stations.
Each receiver chain includes a 30dB range DSA (Digital Step Attenuator), followed by a 6GSPS 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 digital down converters (DDC) provides up to 800MHz of combined signal BW .
Each transmitter chain includes digital up converters (DUCs) supporting up to 800MHz combined signal bandwidth with a mixed mode output option to enhance 2nd Nyquist operation. The DAC output includes a variable gain amplifier (TX DSA) with 39dB range and 1dB analog and 0.125dB digital steps.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | AFE812x Octal/Quad-Channel RF Transceiver with Feedback Paths datasheet | PDF | HTML | 2026/3/20 | ||
| 應用說明 | SYSREF Alignment Detector | PDF | HTML | 2026/7/21 | |||
| 類比設計期刊 | 透過 mMIMO 與精確波束成形技術實現 5G 網路潛力 | PDF | HTML | PDF | HTML | 2026/5/8 |
設計與開發
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AFE8128EVM — AFE8128 評估模組
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| FCBGA (APK) | 400 | Ultra Librarian |
訂購與品質
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。