Datasheet MAXM86161 (Maxim) - 9

MAXM86161 Single-Supply Integrated Optical Module for HR and SpO2 Measurement
Electrical Characteristics (continued)
(VLED = 5.0V, PPG1_ADC_RGE = 16μA, PPG_SR = 512sps, PPG_TINT = 117.3μs, LED_SETLNG = 6μs, LEDx_RGE = 31mA, PDBIAS1 = 0x1, TA = 25°C, min/max are from TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS RED LED CHARACTERISTICS (NOTE 4)
Centroid Wavelength λcentroid IF = 20mA, TA = +25°C 660 nm Forward Voltage VF IF = 20mA, tp =5ms, TA = +25°C 2.1 2.5 V Radiant Power Φe IF = 20mA, TA = +25°C 9 mW Maximum Junction Tem- perature TJ 115 °C
GREEN LED CHARACTERISTICS (NOTE 4)
Centroid Wavelength λcentroid IF = 150mA, tp = 10ms, TA = +25°C 520 535 nm Forward Voltage VF IF = 150mA, tp = 5ms, TA = +25°C 3.0 3.35 3.8 V Radiant Power Φe IF = 150mA, TA = +25°C 25 mW Maximum junction tem- perature TJ 150 °C
PHOTODIODE (NOTE 4)
Wavelength of Peak Sensitivity 860 nm Spectral Bandwidth 420 to Range 1020 nm
DIGITAL I/O CHARACTERISTICS (SDA, SCL, INTB, GPIO, LDO_EN)
Open Drain Output Low Voltage VOL_OD SDA, INTB, GPIO, ISINK = 6mA 0.4 V SDA and SCL 0.4 Input Voltage Low VIL V LDO_EN 0.3 SDA and SCL 1.4 Input Voltage High VIH V LDO_EN 1.1 Input Hysteresis VHYS SDA and SCL 400 mV V Input Leakage Current I IN = 0V, TA = +25°C 0.01 1 IN μA VIN = 5.5V, TA = +25°C 0.01 1 Input Capacitance CIN 10 pF
I2C TIMING CHARACTERISTICS (NOTE 5)
I2C Write Address C4 Hex I2C Read Address C5 Hex Serial Clock Frequency fSCL 0 400 kHz Bus Free Time Between STOP and START Con- tBUF 1.3 µs ditions Hold Time START and Repeat START Condi- tHD_STA 0.6 µs tion SCL Pulse-Width Low tLOW 1.3 µs www.maximintegrated.com Maxim Integrated │ 9 Document Outline General Description Applications Benefits and Features Simplified Block Diagram Absolute Maximum Ratings Package Information Electrical Characteristics Typical Operating Characteristics Pin Configuration Pin Description Detailed Description Optical Subsystem LED Driver FIFO Configuration LED Sequence Control (0x20 to 0x22) Pseudo-Code Example of Initialize the Optical AFE Pseudo-Code for Interrupt Handling with FIFO_A_FULL Pseudo-Code Example of Reading Data from FIFO Optical Timing One LED Pulsing with No Direct Ambient Sampling One LED Pulsing with Direct Ambient Sampling Two LEDs Pulsing Sequentially with Direct Ambient Sampling All LEDs Pulsing Sequentially with Direct Ambient Sampling ADC Architecture and Transfer Function Non-Linearity (XNL) Trim Proximity Mode Function Picket Fence Detect-and-Replace Function Layout Guidelines I2C/SMBus Compatible Serial Interface Detailed I2C Timing Diagram Bit Transfer START and STOP Conditions Early STOP Conditions Slave Address Acknowledge Bit I2C Write Data Format I2C Read Data Format Register Map Register Details INTERRUPT STATUS 1 (0x00) INTERRUPT STATUS 2 (0X01) INTERRUPT ENABLE 1 (0X02) INTERRUPT ENABLE 2 (0X03) FIFO WRITE POINTER (0X04) FIFO READ POINTER (0X05) OVER FLOW COUNTER (0X06) FIFO DATA COUNTER (0X07) FIFO DATA REGISTER (0X08) FIFO CONFIGURATION 1 (0X09) FIFO CONFIGURATION 2 (0X0A) SYSTEM CONTROL (0X0D) PPG SYNC CONTROL (0X10) PPG CONFIGURATION 1 (0X11) PPG CONFIGURATION 2 (0X12) PPG CONFIGURATION 3 (0X13) PROX INTERRUPT THRESHOLD (0X14) PHOTO DIODE BIAS (0X15) PICKET FENCE (0X16) LED SEQUENCE REGISTER 1 (0X20) LED SEQUENCE REGISTER 2 (0X21) LED SEQUENCE REGISTER 3 (0X22) LED1 PA (0x23) LED2 PA (0x24) LED3_PA (0x25) LED PILOT PA (0x29) LED RANGE 1 (0X2A) S1 HI RES DAC1 (0x2C) S2 HI RES DAC1 (0x2D) S3 HI RES DAC1 (0x2E) S4 HI RES DAC1 (0x2F) S5 HI RES DAC1 (0x30) S6 HI RES DAC1 (0x31) DIE TEMPERATURE CONFIGURATION (0X40) DIE TEMPERATURE INTEGER (0X41) DIE TEMPERATURE FRACTION (0X42) DAC CALIBRATION ENABLE (0X50) SHA COMMAND (0XF0) SHA CONFIGURATION (0XF1) MEMORY CONTROL (0XF2) MEMORY INDEX (0XF3) MEMORY DATA (0XF4) PART ID (0XFF) Ordering Information Revision History