AFE58JD48

AKTIV

12,8 GB-JESD204B-Ultraschall-AFE mit 16 Bit-A/D-Wandler (ADC) mit 125 MSPS

Produktdetails

Device type Receiver Number of input channels 16 Active supply current (typ) (mA) 208 Supply voltage (max) (V) 3.3 Operating temperature range (°C) 0 to 85 Interface type LVDS Features Analog Front End (AFE) Rating Catalog
Device type Receiver Number of input channels 16 Active supply current (typ) (mA) 208 Supply voltage (max) (V) 3.3 Operating temperature range (°C) 0 to 85 Interface type LVDS Features Analog Front End (AFE) Rating Catalog
NFBGA (ZAV) 289 225 mm² 15 x 15
  • 16-Channel AFE for ultrasound applications:
    • Four programmable TGC setting profiles
  • Low-noise amplifier (LNA) With Active Termination:
    • Programmable gain: 21 dB, 18 dB, and 15 dB
    • Linear input amplitude: 0.37/0.5/0.71 VPP
    • Maximum input amplitude: 1 Vpp
  • Voltage-controlled attenuator (VCAT):
    • Attenuation range: 0 dB–36 dB
  • Programmable gain amplifier (PGA):
    • 18 dB–27 dB in Steps of 3 dB
  • 3rd-Order, 10 ~ 60 MHz Low-pass filter (LPF)
  • ADC Idle-Channel SNR:
    • 16-Bit, 125-MSPS Mode: 80-dBFS
    • 14-Bit, 80-MSPS Mode: 79-dBFS
  • Excellent near field SNR: 74-dBFS
  • TGC Mode JESD204B output
    • 140 mW/Ch, 0.8 nV/√Hz, 125 MSPS, 16 bit
    • 120 mW/Ch, 0.8 nV/√Hz, 80 MSPS, 16 bit
    • 115 mW/Ch, 0.8 nV/√Hz, 65 MSPS, 16 bit
    • 105 mW/Ch, 0.8 nV/√Hz, 40 MSPS, 16 bit
  • TGC Mode LVDS output
    • 120 mW/Ch, 0.8 nV/√Hz, 80 MSPS, 16 bit
    • 115 mW/Ch, 0.8 nV/√Hz, 65 MSPS, 16 bit
    • 150 mW/Ch, 0.8 nV/√Hz, 125 MSPS, 16 bit, Decimation by 2, LVDS 0.5x mode
  • CW Mode: 63 mW/Ch, 1.15 nV/√Hz
  • ±0.4 dB (typical) Device-to-device gain matching
  • Fast and consistent overload recovery
  • Continuous wave (CW) path with:
    • –159 dBc/Hz Phase noise at 1-kHz off carrier
    • λ / 16 Phase resolution
    • Supports 16x and 8x CW clocks
    • 12-dB Suppression of 3rd and 5th harmonics
  • Digital I/Q demodulator w/ data reduction
    • Fractional decimation filter M = 1 to 63 with increments of 0.25
    • On-chip RAM with 32 preset profiles
  • LVDS Interface with a speed Up to 1.28 Gbps
  • 10-Gbps JESD204B Subclass 0, 1, and 2
    • Up to 12.8-Gbps with 10-cm PCB traces
    • 2, 4, or 8 Channels per JESD lane
  • 16-Channel AFE for ultrasound applications:
    • Four programmable TGC setting profiles
  • Low-noise amplifier (LNA) With Active Termination:
    • Programmable gain: 21 dB, 18 dB, and 15 dB
    • Linear input amplitude: 0.37/0.5/0.71 VPP
    • Maximum input amplitude: 1 Vpp
  • Voltage-controlled attenuator (VCAT):
    • Attenuation range: 0 dB–36 dB
  • Programmable gain amplifier (PGA):
    • 18 dB–27 dB in Steps of 3 dB
  • 3rd-Order, 10 ~ 60 MHz Low-pass filter (LPF)
  • ADC Idle-Channel SNR:
    • 16-Bit, 125-MSPS Mode: 80-dBFS
    • 14-Bit, 80-MSPS Mode: 79-dBFS
  • Excellent near field SNR: 74-dBFS
  • TGC Mode JESD204B output
    • 140 mW/Ch, 0.8 nV/√Hz, 125 MSPS, 16 bit
    • 120 mW/Ch, 0.8 nV/√Hz, 80 MSPS, 16 bit
    • 115 mW/Ch, 0.8 nV/√Hz, 65 MSPS, 16 bit
    • 105 mW/Ch, 0.8 nV/√Hz, 40 MSPS, 16 bit
  • TGC Mode LVDS output
    • 120 mW/Ch, 0.8 nV/√Hz, 80 MSPS, 16 bit
    • 115 mW/Ch, 0.8 nV/√Hz, 65 MSPS, 16 bit
    • 150 mW/Ch, 0.8 nV/√Hz, 125 MSPS, 16 bit, Decimation by 2, LVDS 0.5x mode
  • CW Mode: 63 mW/Ch, 1.15 nV/√Hz
  • ±0.4 dB (typical) Device-to-device gain matching
  • Fast and consistent overload recovery
  • Continuous wave (CW) path with:
    • –159 dBc/Hz Phase noise at 1-kHz off carrier
    • λ / 16 Phase resolution
    • Supports 16x and 8x CW clocks
    • 12-dB Suppression of 3rd and 5th harmonics
  • Digital I/Q demodulator w/ data reduction
    • Fractional decimation filter M = 1 to 63 with increments of 0.25
    • On-chip RAM with 32 preset profiles
  • LVDS Interface with a speed Up to 1.28 Gbps
  • 10-Gbps JESD204B Subclass 0, 1, and 2
    • Up to 12.8-Gbps with 10-cm PCB traces
    • 2, 4, or 8 Channels per JESD lane

The AFE58JD48 device is a highly-integrated, analog front-end (AFE) solutions specifically designed for premium ultrasound systems.

The AFE58JD48 is an integrated AFE optimized for premium medical ultrasound application. The device is realized through a multichip module (MCM) with three dies: one 16-CH voltage-controlled amplifier (VCA) die and two 8-CH analog-to-digital converter (ADC) dies.

Each channel in the VCA die can be configured in one of two modes: time gain compensation (TGC) mode or continuous wave (CW) mode. In TGC mode, each channel includes a low-noise amplifier (LNA), a voltage-controlled attenuator (VCAT), a programmable gain amplifier (PGA), and a third-order, low-pass filter (LPF). The LNA is programmable in gains of 21 dB, 18 dB, or 15 dB. The LNA also supports active termination. The VCAT supports an attenuation range of 0 dB to 36 dB, with analog voltage control for the attenuation. The PGA provides gain options from 18 dB to 27 dB in steps of 3 dB. The LPF cutoff frequency can be set between 10 MHz and 60 MHz to support ultrasound applications with different frequencies, especially the emerging high frequency ultrasound imaging applications. In CW mode, the output of the LNA goes to a low-power passive mixer with 16 selectable phase delays followed by a summing amplifier with a band-pass filter. Different phase delays can be applied to each analog input signal to perform an on-chip beamforming operation. A harmonic filter in the CW mixer suppresses the third and fifth harmonic to enhance the sensitivity of the CW Doppler measurement.

The ADC die can be configured to operate with a resolution of 16 bits or 14 bits. The ADC primarily supports a JESD204B interface that runs up to 12.8 Gbps and reduces the circuit-board routing challenges in high-channel count systems. The output interface of the ADC can also be set as a low-voltage differential signaling (LVDS) that can easily interface with low-cost field-programmable gate arrays (FPGAs). The ADC can operate at maximum speeds of 125 MSPS 16-bit and send out the digitized data with JESD204B interface. When the LVDS interface is used, the ADCs sampling rate and resolution are limited by the LVDS output rate of 1.28 Gbps, or 80 MSPS at 16-bit resolution. The ADC in 14-bit resolution can be configured in this scenario to sample at a higher speed but still maintain the same output data rate. The ADC is designed to scale its power with sampling rate.

The AFE58JD48 additionally includes a digital demodulator block. The digital in-phase and quadrature (I/Q) demodulator with programmable decimation filters accelerates computationally-intensive algorithms at low power.

The device also allows various power and noise combinations to be selected for optimizing system performance. Therefore, the device is a suitable ultrasound AFE solution for premium systems powered either by wall outlet or by batteries.

The device is available in a 15-mm × 15-mm NFBGA-289 package and is almost pin-compatible with the AFE58JD28 and AFE58JD18 devices.

The AFE58JD48 device is a highly-integrated, analog front-end (AFE) solutions specifically designed for premium ultrasound systems.

The AFE58JD48 is an integrated AFE optimized for premium medical ultrasound application. The device is realized through a multichip module (MCM) with three dies: one 16-CH voltage-controlled amplifier (VCA) die and two 8-CH analog-to-digital converter (ADC) dies.

Each channel in the VCA die can be configured in one of two modes: time gain compensation (TGC) mode or continuous wave (CW) mode. In TGC mode, each channel includes a low-noise amplifier (LNA), a voltage-controlled attenuator (VCAT), a programmable gain amplifier (PGA), and a third-order, low-pass filter (LPF). The LNA is programmable in gains of 21 dB, 18 dB, or 15 dB. The LNA also supports active termination. The VCAT supports an attenuation range of 0 dB to 36 dB, with analog voltage control for the attenuation. The PGA provides gain options from 18 dB to 27 dB in steps of 3 dB. The LPF cutoff frequency can be set between 10 MHz and 60 MHz to support ultrasound applications with different frequencies, especially the emerging high frequency ultrasound imaging applications. In CW mode, the output of the LNA goes to a low-power passive mixer with 16 selectable phase delays followed by a summing amplifier with a band-pass filter. Different phase delays can be applied to each analog input signal to perform an on-chip beamforming operation. A harmonic filter in the CW mixer suppresses the third and fifth harmonic to enhance the sensitivity of the CW Doppler measurement.

The ADC die can be configured to operate with a resolution of 16 bits or 14 bits. The ADC primarily supports a JESD204B interface that runs up to 12.8 Gbps and reduces the circuit-board routing challenges in high-channel count systems. The output interface of the ADC can also be set as a low-voltage differential signaling (LVDS) that can easily interface with low-cost field-programmable gate arrays (FPGAs). The ADC can operate at maximum speeds of 125 MSPS 16-bit and send out the digitized data with JESD204B interface. When the LVDS interface is used, the ADCs sampling rate and resolution are limited by the LVDS output rate of 1.28 Gbps, or 80 MSPS at 16-bit resolution. The ADC in 14-bit resolution can be configured in this scenario to sample at a higher speed but still maintain the same output data rate. The ADC is designed to scale its power with sampling rate.

The AFE58JD48 additionally includes a digital demodulator block. The digital in-phase and quadrature (I/Q) demodulator with programmable decimation filters accelerates computationally-intensive algorithms at low power.

The device also allows various power and noise combinations to be selected for optimizing system performance. Therefore, the device is a suitable ultrasound AFE solution for premium systems powered either by wall outlet or by batteries.

The device is available in a 15-mm × 15-mm NFBGA-289 package and is almost pin-compatible with the AFE58JD28 and AFE58JD18 devices.

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Typ Titel Datum
* Data sheet AFE58JD48 16-Channel Ultrasound AFE with 140-mW/Channel Power, 0.8-nV/√Hz Noise, 16-Bit, 125-MSPS ADC with JESD or LVDS Interface, Digital Demodulator, and Passive CW Mixer datasheet (Rev. A) PDF | HTML 17 Dez 2019
Application note Analog Time Gain Control (ATGC) Solutions for TI’s Ultrasound AFE PDF | HTML 18 Mai 2023

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NFBGA (ZAV) 289 Ultra Librarian

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