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Texas Instruments ADC32RF5x RF Sampling Data Converters

Texas Instruments ADC32RF5x RF Sampling Data Converters are single core 14-bit, 2.6GSPS to 3GSPS, dual channel analog to digital converters (ADC) that support RF sampling with input frequencies up to 3GHz. The design maximizes signal-to-noise ratio (SNR) and delivers a noise spectral density of -155dBFS/Hz. Using additional internal ADCs along with on-chip signal averaging, the noise density improves to -161dBFS/Hz.

Each ADC channel can be connected to a quad-band digital down-converter (DDC) using a 48-bit NCO, which supports phase-coherent frequency hopping. Using the GPIO pins for NCO frequency control, frequency hopping can be achieved in less than 1µs. The Texas Instruments ADC32RF54 and ADC32RF55 support the JESD204B serial data interface with subclass 1 deterministic latency using data rates up to 13Gbps. The power-efficient ADC architecture consumes 2.1W/ch at 3Gsps and provides power scaling with lower sampling rates.

Features

  • 14-Bit, dual channel 2.6GSPS to 3GSPS ADC
  • Noise spectral density
    • NSD = -155.6 dBFS/Hz (no AVG)
    • NSD = -158.1 dBFS/Hz (2x AVG)
    • NSD = -160.4 dBFS/Hz (4x AVG)
  • Single-core (non-interleaved) ADC architecture
  • Aperture jitter of 50fs
  • Low close-in residual phase noise
    • -127dBc/Hz at 10kHz offset
  • Spectral performance (fIN = 1GHz, -4dBFS)
    • 2x internal averaging
    • SNR: 62.3dBFS
    • SFDR HD2,3: 63dBc
    • SFDR worst spur: 85dBFS
  • Spectral performance (fIN = 1.8GHz, -4dBFS)
    • 2x internal averaging
    • SNR: 63dBFS
    • SFDR HD2,3: 68dBc
    • SFDR worst spur: 86dBFS
  • 1.1 to 1.35Vpp (2dBm to 3.5dBm) input fullscale
  • 10-15 code error rate (CER)
  • 2.75GHz full power input bandwidth (-3dB)
  • JESD204B serial data interface
    • 13Gbps maximum lane rate
    • Supports subclass 1 deterministic latency
  • Digital down-converters
    • Up to four DDC per ADC channel
    • Complex output (4x to 128x decimation)
    • 48-bit NCO phase-coherent frequency hopping
    • < 1us fast frequency hopping
  • 2.6W/channel (2x AVG) power consumption
  • 1.8V, 1.2V power supplies

Applications

  • Phased array radar
  • Spectrum analyzer
  • Software-defined radio (SDR)
  • Electronic warfare
  • High-speed digitizer
  • Cable infrastructure
  • Communications infrastructure

Block Diagram

Block Diagram - Texas Instruments ADC32RF5x RF Sampling Data Converters

Development Tools

TRF1305x1-D2D Evaluation Modules

Texas Instruments TRF1305x1-D2D Evaluation Modules

Designed to quickly and easily demonstrate the TRF1305B1 amplifier.

Learn Moreacerca de Texas Instruments TRF1305x1-D2D Evaluation Modules View Productsrelacionado con Texas Instruments TRF1305x1-D2D Evaluation Modules
Publicado: 2023-10-13 | Actualizado: 2025-02-24