AFE5804
- 8-Channel Complete Analog Front-End:
- LNA, VCA, PGA, LPF, and ADC
- Mode Control for Power/Noise Optimization:
- Low Noise (Full-Channel):
0.89nV/√Hz (TGC Mode I)
1.23nV/√Hz (TGC Mode II)
1.03nV/√Hz (PW Mode) - Ultra-Low Power:
101mW/Channel (TGC Mode II)
65mW/Channel (CW Mode)
- Low Noise (Full-Channel):
- Low-Noise Pre-Amp (LNA):
- 0.75nV/√Hz
- 20dB Fixed Gain
- 280mVPP Linear Input Range
- Variable-Gain Amplifier:
- Gain Control Range: 46dB
- PGA Gain Settings: 20dB, 25dB, 27dB, 30dB
- Low-Pass Filter:
- Selectable BW: 12.5MHz, 17MHz
- 2nd-Order, Bessel
- Gain Error: ±0.5dB
- Channel Matching: ±0.25dB
- Clamping
- Fast Overload Recovery: Two Clock Cycles
- 12-Bit Analog-to-Digital Converter:
- 10MSPS to 50MSPS
- 69dB SNR at 10MHz
- Serial LVDS Interface
- Integrated CW Switch Matrix
- 15mm × 9mm, 135-BGA Package:
- Pb-Free (RoHS-Compliant) and Green
The AFE5804 is a complete analog front-end device specifically designed for ultrasound systems that require low power and small size.
The AFE5804 consists of eight channels, including a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), low-pass filter (LPF), and a 12-bit analog-to-digital converter (ADC) with low voltage differential signaling (LVDS) data outputs.
The LNA gain is set for 20dB gain and has excellent noise and signal handling capabilities, including fast overload recovery. VCA gain can vary over a 46dB range with a 0V to 1.2V control voltage common to all channels of the AFE5804.
The PGA can be programmed for gains of 20dB, 25dB, 27dB, and 30dB. The internal low-pass filter can also be programmed to 12.5MHz or 17MHz.
The LVDS outputs of the ADC reduce the number of interface lines to an ASIC or FPGA, thereby enabling the high system integration densities desired for portable systems. The ADC can either be operated with internal or external references. The ADC also features a signal-to-noise ratio (SNR) enhancement mode that can be useful at high gains.
The AFE5804 is available in a 15mm × 9mm, 135-ball BGA package that is Pb-free (RoHS-compliant) and green. It is specified for operation from 0°C to +85°C.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | Fully-Integrated, 8-Ch Analog Front-End for Ultrasound 0.89nV/Hz, 12-Bit, 40MSPS datasheet (Rev. C) | 2011/10/27 | |||
| 使用指南 | TSW1250EVM: High-Speed LVDS Deserializer and Analysis System (Rev. F) | 2012/1/20 | ||||
| 更多文件說明 | Ultrasound flyer (Rev. A) | 2011/9/22 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
SLOC121 — AFE58xxEVM Driver
DATACONVERTERPRO-SW — 高速資料轉換器 Pro GUI 安裝程式，v5.31
這款高速資料轉換器專業 GUI 是一款 PC（與 Windows® XP/7/10 相容）程式，旨在協助評估大多數 TI 高速資料轉換器 [類比轉數位轉換器 (ADC) 和數位轉類比轉換器 (DAC)] 和類比前端 (AFE) 平台。DATACONVERTERPRO-SW 旨在支援整個 TSW14xxx 系列資料擷取和模式產生卡，為時域和頻域中的資料轉換器分析提供強大且快速的解決方案，並支援單音、多音和調變訊號。此 GUI 也與 TI 模式產生 GUI 相容，可快速合成單音、多音和調變訊號。
使用者可以向 DATACONVERTERPRO-SW 提供自訂模式，以載入到 TI DAC。支援從 (...)
SLOC120 — AFE5804EVM USB SPI Software
SLOC231 — TSW1250EVM Software
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| NFBGA (ZCF) | 135 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。