AFE7955
2T3R, 600-MHz to 12-GHz, RF-sampling AFE, 12-GSPS DACs, 3-GSPS ADCs, 1.2-GHz max IBW
AFE7955
- Dual RF sampling 12-GSPS transmit DACs
- Triple RF sampling 3-GSPS receive ADCs
- Maximum RF signal bandwidth: 1200 MHz
- RF frequency range: 600 MHz - 12 GHz
- Digital step attenuators (DSA):
- TX: 40 dB range, 0.125-dB steps
- RX: 25 dB range, 0.5-dB steps
- Single or dual-band DUC or DDCs
- 16x NCOs per TX or RX
- 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 29.5 Gbps
- Subclass 1 multi-device synchronization
- Package: 17-mm × 17-mm FCBGA, 0.8-mm pitch
The AFE7955 is a high performance, wide bandwidth multi-channel transceiver, integrating two RF sampling transmitter chains and 3 RF sampling receiver chains. With operation up to 12 GHz, this device enables direct RF sampling in the L, S, C and X-band frequency ranges without the need for additional frequency conversions stages. This improvement in density and flexibility enables high-channel-count, multi-mission systems.
The TX signal paths support interpolation and digital up conversion options that deliver up to 1200 MHz of signal bandwidth per TX channel. The output of the DUCs drives a 12-GSPS DAC (digital to analog converter) with a mixed mode output option to enhance 2 nd 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.
Two receiver chains includes a 25-dB range DSA (Digital Step Attenuator), followed by a 3-GSPS ADC (analog-to-digital converter). The two receiver channels have 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 1200 MHz per RX channel.
An additional receiver channel has a single wideband DDC supporting up to 1200 MHz bandwidth.
![](/product-folders/content/dam/ticom/images/icons/illustrative-icons/resources/information-icon.png)
Request more information
See the full data sheet and other design resources for the general-purpose AFEs. Request now
For commercial-wireless applications, see our wireless-infrastructure AFEs.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | AFE7955 2T3R RF Sampling AFE with 12 GSPS DACs and 3 GSPS ADCs datasheet | PDF | HTML | 31 Aug 2022 |
Application note | AFE79XX as a Chirp Signal Generator | PDF | HTML | 10 Jul 2024 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
AFE7950EVM — AFE7950 evaluation module for four-transmit, six-receive, X-band, RF-sampling AFE
The AFE7950 evaluation module (EVM) is an RF-sampling transceiver platform that can be configured to simultaneously support up to four-transmit and six-receive (4T6R) channels. The module evaluates the AFE7950, which is a quad-channel, RF-sampling, analog front end (AFE) with 14-bit, (...)
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
FCBGA (ABJ) | 400 | Ultra Librarian |
FCBGA (ALK) | 400 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.