AFE7989
- Quad RF sampling 12-GSPS transmit DACs
- Quad RF sampling 3-GSPS receive ADCs
- Dual RF sampling 3-GSPS feedback ADCs (AFE792x only)
- Maximum RF signal bandwidth:
- TX/FB: 1200 MHz (AFE7920/88) or 400 MHz (AFE7989) or 800MHz (AFE7921)
- RX: 600 MHz (AFE7920/88) or 400 MHz (AFE7921/AFE7989)
- Digital Step Attenuators (DSA):
- TX: 40 dB range, 1-dB analog and 0.125-dB digital steps
- RX: 25 dB range, 0.5-dB steps
- FB: 25 dB range, 0.5-dB steps
- Single or dual-band DUC/DDCs (AFE7920/88 only) for TX and RX
- Dual NCOs 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 compliant
- 8 SerDes transceivers up to 29.5 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
The AFE79xx is a family of high performance, wide bandwidth multi-channel transceivers, integrating four RF sampling transmitter chains, four RF sampling receiver chains, and up to two RF sampling digitizing auxiliary chains (feedback paths). 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 AFE79xx devices is designed for multi-band 4G and 5G base stations.
Each receiver chain includes a 25-dB range DSA (Digital Step Attenuator), followed by a 3-GSPS 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. The single or dual digital down converters (DDC) provide up to 600 MHz of combined signal BW. In TDD mode, the receiver channel can be configured to dynamically switch between the 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 1200-MHz combined signal bandwidth. The output of the DUCs drives a 12-GSPS DAC (digital to analog converter) with a mixed mode output option to enhance 2nd or 3rd 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 an 25-dB range DSA driving a 3-GSPS RF sampling ADC, followed by a DDC with up to 1200-MHz bandwidth.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | AFE79xx Quad-Channel RF Transceiver With Feedback Path datasheet (Rev. C) | PDF | HTML | 2020年 6月 23日 |
| Application note | RF Sampling Resource Guide | PDF | HTML | 2024年 3月 5日 | |
| Application note | AFE79xx Layout Guide (Rev. B) | 2021年 4月 6日 | ||
| Application note | System Design Considerations when Upgrading from JESD204B to JESD204C (Rev. A) | 2021年 4月 5日 | ||
| Application note | AFE76xx, AFE77xx, and AFE79xx JESD204 Layer Testing | 2020年 4月 15日 | ||
| Application note | Temp Profile to Maintain Optimum FIT Performance | 2019年 7月 23日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
AFE7920EVM — AFE7920 四發射四接收二回饋路徑射頻取樣收發器評估模組
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整合式數位步進衰減器 (...)
TI-JESD204-IP — JESD204 快速設計 IP，適用連接到 TI 高速資料轉換器的 FPGA
| 封裝 | 引腳 | 下載 |
|---|---|---|
| FCBGA (ABJ) | 400 | 檢視選項 |
訂購與品質
- 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
- 資格摘要
- 進行中可靠性監測
- 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。