Dual-channel, 14-bit, 2.45-GSPS, RF-sampling telecom receiver and feedback IC
Product details
Parameters
Package | Pins | Size
Features
- 14-Bit, Dual-Channel, 2457.6-MSPS ADC
- Noise Floor: –154.1 dBFS/Hz
- RF Input Supports Up to 4.0 GHz
- Aperture Jitter: 90 fS
- Channel Isolation: 95 dB at fIN = 1.8 GHz
- Spectral Performance (fIN = 900 MHz, –2 dBFS):
- SNR: 61.2 dBFS
- SFDR: 67-dBc HD2, HD3
- SFDR: 81-dBc Worst Spur
- Spectral Performance (fIN = 1.85 GHz, –2 dBFS):
- SNR: 58.7 dBFS
- SFDR: 71-dBc HD2, HD3
- SFDR: 76-dBc Worst Spur
- On-Chip Digital Down-Converters:
- Up to 4 DDCs (Dual-Band Mode)
- Up to 3 Independent NCOs per DDC
- On-Chip Input Clamp for Overvoltage Protection
- Programmable On-Chip Power Detectors with Alarm Pins for AGC Support
- On-Chip Dither
- On-Chip Input Termination
- Input Full-Scale: 1.35 VPP
- Support for Multi-Chip Synchronization
- JESD204B Interface:
- Subclass 1-Based Deterministic Latency
- 4 Lanes Per Channel at 12.5 Gbps
- Power Dissipation: 3.0 W/Ch at 2457.6 MSPS
- 72-Pin VQFN Package (10 mm × 10 mm)
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Description
The ADC32RF82 is a 14-bit, 2457.6-MSPS, dual-channel telecom receiver and feedback device family that supports RF sampling with input frequencies up to 4 GHz and beyond. Designed for high signal-to-noise ratio (SNR), the ADC32RF82 delivers a noise spectral density of –154.1 dBFS/Hz as well as dynamic range and channel isolation over a large input frequency range. The buffered analog input with on-chip termination provides uniform input impedance across a wide frequency range and minimizes sample-and-hold glitch energy.
Each channel can be connected to a dual-band, digital down-converter (DDC) with up to three independent, 16-bit numerically-controlled oscillators (NCOs) per DDC for phase-coherent frequency hopping. Additionally, the ADC is equipped with front-end peak and RMS power detectors and alarm functions to support external automatic gain control (AGC) algorithms.
The ADC32RF82 supports the JESD204B serial interface with subclass 1-based deterministic latency using data rates up to 12.5 Gbps with up to four lanes per ADC. The device is offered in a 72-pin VQFN package (10 mm × 10 mm) and supports the industrial temperature range (–40°C to +85°C).
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | ADC32RF82 Dual-Channel, 2457.6-MSPS Telecom Receiver and Feedback Device datasheet | Sep. 19, 2017 |
User guide | ADC32RFxxEVM User's Guide (Rev. E) | Jan. 31, 2020 | |
Application note | Configuration Files for ADC32RF45, ADC32RF83, and ADC32RF80 (Rev. B) | Sep. 05, 2017 | |
Technical article | Why should you care about the noise immunity of MLVDS drivers and receivers? | Jul. 26, 2017 | |
Technical article | How to minimize filter loss when you drive an ADC | Oct. 20, 2016 | |
Technical article | RF sampling: analog-to-digital converter linearity sets sensitivity | Sep. 29, 2016 | |
Technical article | RF sampling: linearity performance is not so straightforward | Aug. 30, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The ADC32RF82 evaluation module (EVM) demonstrates the performance of a dual, 2.45-GSPS, 14-bit analog-to-digital converter (ADC) with the JESD204B interface. The EVM includes the ADC32RF82 device, and JESD204B clocking is provided by the LMK04828 and TI voltage regulators to provide the (...)
Features
- External clocking supported or onboard clock generation with LMK04828-generating SYSREF
- JESD204B data interface simplifies digital interface; compliant up to 12.5-GBPS lane rates
- Onboard power management with Texas Instruments
Software development
Design tools & simulation
In the concept phase, a frequency-planning tool enables fine tuning of both (...)
Features
- Frequency planning
- Analog filtering
- Decimation filter spur location
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RMP) | 72 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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