Analog Devices Inc. AD668RF Bandwidth Observation Receiver
Analog Devices Inc. AD668RF Bandwidth Observation Receiver is a 1.2GHz bandwidth, mixed-signal, direct radio frequency (RF) sampling receiver. The AD668RF consists of two 14-bit, 3.0 GSPS analog-to-digital converters (ADCs). The device also has digital signal processing blocks with four wideband digital downconverters (DDCs). The AD6688 has an on-chip buffer and a sample-and-hold circuit designed for low power, small size, and ease of use.
Features
- JESD204B (Subclass 1) coded serial digital outputs
- Support for lane rates up to 16Gbps per lane
- 1.7W total power per channel at 3 GSPS (default settings)
- Performance at −2dBFS amplitude, 2.6GHz input
- SFDR = 70dBFS
- NSD = −148.0dBFS/Hz
- Performance at −9dBFS amplitude, 2.6GHz input
- SFDR = 75dBFS
- NSD = −151.4dBFS/Hz
- Integrated input buffer
- Noise density = −152.0dBFS/Hz
- 0.975V, 1.9V, and 2.5V dc supply operation
- 9GHz analog input full power bandwidth (−3dB)
- Amplitude detects bits for efficient AGC implementation
- Two Integrated wideband digital processors per channel
- 48-bit NCO
- Four cascaded half-band filters
- Phase coherent NCO switching
- Up to 4 channels are available
- Serial port control
- Integer clock divided by two and divided by 4
- Flexible JESD204B lane configurations
- On-chip dither
Applications
- Diversity multiband, multimode digital receivers
- 3G/4G, TD-SCDMA, W-CDMA, GSM, LTE, LTE-A
- DOCSIS 3.0 CMTS upstream receive paths
- HFC digital reverse path receivers
FUNCTIONAL BLOCK DIAGRAM
Evaluation Boards
Analog Devices Inc. AD6688 Evaluation Board
Used to support the AD6688-3000 14-bit 3GSPS dual analog-to-digital converter (ADC).
Published: 2022-10-11
| Updated: 2022-10-13