韌體
SLAC678 — AFE4400SPO2EVM Firmware Source v1.4
支援產品和硬體
產品
生物感測 AFE
- AFE4400 — 適用心率監控器及低成本脈搏血氧儀的整合式類比前端 (AFE)
硬體開發
開發板
- AFE4400SPO2EVM — 適用於心率監控器和低成本脈搏血氧儀的 AFE4400 整合式 AFE 評估模組
AFE4400
- Fully-Integrated Analog Front-End for Pulse Oximeter Applications:
- Flexible Pulse Sequencing and
Timing Control
- Flexible Pulse Sequencing and
- Transmit:
- Integrated LED Driver
(H-Bridge, Push, or Pull) - Dynamic Range: 95 dB
- LED Current:
- Programmable to 50 mA with 8-Bit Current Resolution
- Low Power:
- 100 µA + Average LED Current
- Programmable LED On-Time
- Independent LED2 and LED1 Current Reference
- Integrated LED Driver
- Receive Channel with High Dynamic Range:
- 13 Noise-Free Bits
- Low Power: < 670 µA at 3.3-V Supply
- Integrated Digital Ambient Estimation and Subtraction
- Flexible Receive Sample Time
- Flexible Transimpedance Amplifier with Programmable LED Settings
- Integrated Fault Diagnostics:
- Photodiode and LED Open and
Short Detection - Cable On and Off Detection
- Photodiode and LED Open and
- Supplies:
- Rx = 2.0 V to 3.6 V
- Tx = 3.0 V to 5.25 V
- Package: Compact VQFN-40 (6 mm × 6 mm)
- Specified Temperature Range: 0°C to 70°C
The AFE4400 is a fully-integrated analog front-end (AFE) ideally suited for pulse oximeter applications. The device consists of a low-noise receiver channel with an integrated analog-to-digital converter (ADC), an LED transmit section, and diagnostics for sensor and LED fault detection. The device is a very configurable timing controller. This flexibility enables the user to have complete control of the device timing characteristics. To ease clocking requirements and provide a low-jitter clock to the AFE4400, an oscillator is also integrated that functions from an external crystal. The device communicates to an external microcontroller or host processor using an SPI™ interface.
The device is a complete AFE solution packaged in a single, compact VQFN-40 package (6 mm × 6 mm) and is specified over the operating temperature range of 0°C to 70°C.
技術文件
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檢視所有 2 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | AFE4400 Integrated Analog Front-End for Heart Rate Monitors and Low-Cost Pulse Oximeters datasheet (Rev. H) | PDF | HTML | 2014年 7月 24日 |
| White paper | 持續進化的現代遠距照護應用半導 體技術 | 2020年 10月 28日 |
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)。
開發板
AFE4400SPO2EVM — 適用於心率監控器和低成本脈搏血氧儀的 AFE4400 整合式 AFE 評估模組
The AFE44x0SPO2EVM is intended for evaluating AFE4400 and AFE4490 devices. The family of devices are fully integrated AFE ideally suited for Pulse Oximeter applications and consist of low noise receive channel, the LED transmit section and diagnostics for sensor and LED fault detection. The (...)
使用指南: PDF
開發板
AFE4490SPO2EVM — 適用於脈搏血氧儀的 AFE4490 整合式類比前端 (AFE) 評估模組
The AFE44x0SPO2EVM is intended for evaluating AFE4400 and AFE4490 devices. The family of devices are fully integrated AFE ideally suited for Pulse Oximeter applications and consist of low noise receive channel, the LED transmit section and diagnostics for sensor and LED fault detection. The (...)
使用指南: PDF
開發模組 (EVM) 的 GUI
SLAC556 — AFE44x0SPO2EVM GUI v2.4
支援產品和硬體
產品
生物感測 AFE
硬體開發
開發板
- AFE4400SPO2EVM — 適用於心率監控器和低成本脈搏血氧儀的 AFE4400 整合式 AFE 評估模組
- AFE4490SPO2EVM — 適用於脈搏血氧儀的 AFE4490 整合式類比前端 (AFE) 評估模組
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。
PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。
在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。
在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHA) | 40 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
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。