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Updated at 01/11/2025 10:30:15(UTC+8)

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Description

The AFE4403 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 AFE4403, 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.
Fully-Integrated AFE for Pulse Oximeter and Heart Rate Monitoring Applications
Integrated Dual LED Driver
Option for a Third LED Support for Optimized SPO2, HRM, or Multi-Wavelength HRM
Up to 110-dB Dynamic Range
22-Bit Output in Twos Complement Format Receive Channel
Rx = 2.0 V to 3.6 V
Tx = 3.0 V to 5.25 V
Sampling Rate: 1.3kSPS
Serial Input Channel
Operating temperature range -20°C to 70°C

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AFE4403YZPT Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	36 Pin
Case/Package	XFBGA-36
Supply Voltage (DC)	2.00V (min)
Number of Channels	1 Channel
Number of Positions	36 Position
Number of Bits	22 Bit
Sample Rate	1.30 kHz
Number of ADCs	1 ADC
Input Voltage (Max)	3.6 V
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	-20 ℃
Supply Voltage (Max)	3.6 V
Supply Voltage (Min)	2 V
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Size-Length	3.07 mm
Size-Width	3.07 mm
Size-Height	0.31 mm
Operating Temperature	-20℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

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