AFE7958
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- Four RF sampling 12GSPS DACs
- Six RF sampling 3GSPS ADCs
- Maximum RF signal bandwidth:
- 4TX: 1200 MHz; 2TX: 2400MHz
- 4RX: 1200 MHz; 6RX: 600MHz
- RF frequency range:
- TX: 600MHz to 12GHz
- RX: 5MHz to 12GHz
- Digital step attenuators (DSA):
- TX: 39dB range, 0.125dB steps
- RX: 25dB range, 0.5dB steps
- Digital Up-Converters (DUC) and Digital Down-Converters (DDC): Fast frequency hopping using 16 pre-configurable Numerically Controlled Oscillators (NCOs) in DDC and DUC
- Flexible clocking options:
- External RF clock
- Internal PLL mode with low speed input clock
- SerDes data interface:
- JESD204B and JESD204C compatible
- TX: 8 lanes, RX/FB: 8 lanes, up to 24.75Gbps
- Subclass 1 multi-device synchronization
- SYSREF alignment detector
- Package: 17mm × 17mm FCBGA, 0.8mm pitch
The AFE7958 is a high performance, wide bandwidth multi-channel transceiver, integrating four (4T) RF sampling transmitter (TX) chains and a total of six (6R) RF sampling receivers. With operation up to 12GHz, the AFE enables direct RF sampling in the L, S, C and X-band frequency ranges without the need for additional frequency conversions stages. This high density and configurability enables high-channel-count, multi-mission systems.
The TX and RX interface data rates can be chosen based on signal bandwidths, and is limited by the JESD204B/C interface speed. The data streams are matched to the DAC update rate or to the ADC conversion rate using interpolation in the DUC or decimation in the DDC.
The DAC runs at a maximum rate of 12GSPS, and has a mode to operate in the 2nd Nyquist, enabling the generation of RF signals up to 12GHz. A variable gain amplifier (termed as TDSA) enables changing the power output from the transmitter.
Each receive chain has a Digital Step Attenuator (RDSA) followed by a 3GSPS ADC which can convert higher Nyquist zones to digitize RF signals up to a maximum of 12GHz. Digital peak detectors at the ADC output can be configured to assist an external Automatic Gain control (AGC) loop to control LNA (external) gain and DSA (internal) attenuation.
The AFE7958 can be programmed using the SPI interface. The device also has several GPIOs that can be configured to provide interrupts and to achieve a fast control of functions like NCO switching.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | AFE7958 4T6R RF Sampling AFE with 12GSPS DACs and 3GSPS ADCs datasheet | PDF | HTML | 2025. 8. 27 | |
| 애플리케이션 노트 | AFE79xx Bringup Using HDL Module Without Microcontroller | PDF | HTML | 2025. 8. 14 | ||
| 애플리케이션 노트 | AFE79XX as a Chirp Signal Generator | PDF | HTML | 2024. 7. 10 | ||
| 애플리케이션 노트 | Debugging AFE7950 for Run Time and Post Bring-Up Failure | PDF | HTML | 2024. 6. 28 | ||
| 사용 설명서 | AFE79xx SPI Bringup Guide With Xilinx FPGAs (Rev. A) | PDF | HTML | 2024. 5. 5 | ||
| 애플리케이션 노트 | AFE79xx as Single Chip Wideband Repeater Solution (Rev. A) | PDF | HTML | 2023. 5. 30 | ||
| 애플리케이션 노트 | Determining Optimal Receive Buffer Delay in JESD204B and JESD204C Receivers | PDF | HTML | 2022. 7. 7 | ||
| 애플리케이션 노트 | AFE7950 Super-Heterodyne Solution for K-Band | PDF | HTML | 2022. 2. 15 | ||
| 애플리케이션 노트 | How to Achieve Frequency Hopping with the AFE79xx | 2020. 7. 2 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
AFE7958EVM — AFE7958 평가 모듈
AFE79XX-HSC-DESIGN — AFE79xx family high-speed transceiver design & support files
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| FCBGA (ABJ) | 400 | Ultra Librarian |
| FCBGA (ALK) | 400 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.