GUI para el módulo de evaluación (EVM)
AFE5808A
Extremo frontal analógico para ultrasonido de 8 canales totalmente integrado con mezclador CW pasivo
Hoja de datos
AFE5808A
- 8-Channel Complete Analog Front-End
- LNA, VCAT, PGA, LPF, ADC, and CW Mixer
- Programmable Gain Low-Noise Amplifier (LNA)
- 24-, 18-, or 12-dB Gain
- 0.25-, 0.5-, or 1-VPP Linear Input Range
- 0.63-, 0.7-, or 0.9-nV/√Hz Input-Referred Noise
- Programmable Active Termination
- 40-dB, Low-Noise Voltage-Controlled Attenuator
(VCAT) - 24-, or 30-dB Programmable Gain Amplifier (PGA)
- 3rd-Order, Linear-Phase, Low-Pass Filter (LPF)
- 10 MHz, 15 MHz, 20 MHz, or 30 MHz
- 14-bit Analog-to-Digital Converter (ADC)
- 77-dBFS SNR at 65 MSPS
- LVDS Outputs
- Noise and Power Optimizations (Full Chain)
- 158 mW/CH at 0.75 nV/√Hz, 65 MSPS
- 101 mW/CH at 1.1 nV/√Hz, 40 MSPS
- 80 mW/CH in CW Mode
- Excellent Device-to-Device Gain Matching
- ±0.5 dB (Typical) and ±0.9 dB (Maximum)
- Low Harmonic Distortion
- Fast and Consistent Overload Recovery
- Passive Mixer for Continuous Wave Doppler
(CWD)- Low Close-in Phase Noise: –156 dBc/Hz at 1
KHz Off 2.5-MHz Carrier - Phase Resolution of 1/16λ
- Support 16X, 8X, 4X and 1X CW Clocks
- 12-dB Suppression on 3rd and 5th Harmonics
- Flexible Input Clocks
- Low Close-in Phase Noise: –156 dBc/Hz at 1
- Small Package: 15-mm × 9-mm, 135-Pin NFBGA
The AFE5808A is a highly-integrated, analog front-end (AFE) solution specifically designed for ultrasound systems in which high performance and small size are required. The AFE5808A integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. This device also enables users to select one of various power and noise combinations to optimize system performance. Therefore, the AFE5808A is an outstanding ultrasound analog front-end solution not only for high-end systems, but also for portable ones.
The AFE5808A device contains eight voltage controlled amplifiers (VCA), 14- and 12-bit analog-to-digital converters (ADC), and CW mixers. The VCA includes a low-noise amplifier (LNA), voltage-controlled attenuator (VCAT), programmable gain amplifier (PGA), and low-pass filter (LPF). The LNA gain is programmable to support 250 mVPP to 1 VPP input signals. Programmable active termination is also supported by the LNA. The ultralow noise VCAT provides an attenuation control range of 40 dB, and improves overall low gain SNR that benefits harmonic imaging and near field imaging. The PGA provides gain options of 24 dB and 30 dB. In front of the ADC, a LPF can be configured as 10 MHz, 15 MHz, 20 MHz, or 30 MHz to support ultrasound applications with different frequencies. The high-performance 14-bit, 65-MSPS ADC in the AFE5808A device achieves 77-dBFS SNR, and ensures excellent SNR at low-chain gain. The ADC LVDS outputs enable flexible system integration desired for miniaturized systems.
The AFE5808A device also incorporates a low-power passive mixer and a low-noise summing amplifier to accomplish on-chip CWD beamforming. Sixteen selectable phase-delays can be applied to each analog input signal. A unique 3rd- and 5th-order harmonic-suppression filter is implemented to enhance CW sensitivity.
The AFE5808A is available in a 15-mm × 9-mm, 135-pin BGA package and it is specified for operation from 0°C to 85°C. This device is also pin-to-pin compatible with the AFE5803, AFE5807, and AFE5808.
NOTE: The AFE5808A is an enhanced version of AFE5808 and is recommended for new designs. Compared to the AFE5808, the AFE5808A expands the cutoff frequency range of the digital high-pass filter; increases the handling capability of extreme overload signals; and lowers the correlated noise significantly when high-impedance source appears.
Documentación técnica
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Ver todo 3 | Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | AFE5808A 0.75 nV/√Hz, 65-MSPS, 158 mW/Channel, Fully-Integrated, 8-Channel, 14- and 12-Bit, Ultrasound Analog Front-End With Passive CW Mixer datasheet (Rev. D) | PDF | HTML | 06 jul 2015 |
| EVM User's guide | AFE5808/08A (Rev E) Evaluation Module.. (Rev. B) | 05 mar 2015 | ||
| Application note | Understanding Serial LVDS Capture in High-Speed ADCs | 10 jul 2013 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
Placa de evaluación
AFE5808AEVM — Módulo de evaluación AFE5808A
The AFE5808AEVM provides a convenient platform to evaluate the AFE5808A. AFE5808A is an enhanced version of AFE5808 and it is recommended for new designs. Compared to AFE5808, it expands the cut-off frequency range of the digital high pass filter; reduces the correlated noise when high impedance (...)
Guía del usuario: PDF
Modelo de simulación
AFE5808A TINA-TI Reference Design
SLOM281.TSC (106 KB) - TINA-TI Reference Design
Modelo de simulación
AFE5808A TINA-TI Transient Reference Design
SLOM278.TSC (63 KB) - TINA-TI Reference Design
Modelo de simulación
AFE5808A TINA-TI Transient Spice Model
SLOM277.ZIP (35 KB) - TINA-TI Spice Model
Herramienta de simulación
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Paquete | Pasadores | Descargar |
|---|---|---|
| NFBGA (ZCF) | 135 | Ver opciones |
Pedidos y calidad
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- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
Información incluida:
- Lugar de fabricación
- Lugar de ensamblaje
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