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) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS SCL Pulse-Width High tHIGH 0.6 µs Setup Time for a Re- peated START Condition tSU_STA 0.6 µs Data Hold Time tHD_DAT 0 900 ns Data Setup Time tSU_DAT 100 ns Setup Time for STOP Condition tSU_STO 0.6 µs Pulse Width of Sup- pressed Spike tSP 0 50 ns Bus Capacitance CB 400 pF SDA and SCL Receiving 20 + Rise Time tR 0.1CB 300 ns SDA and SCL Receiving 20 + Fall Time tF 0.1CB 300 ns SDA Transmitting Fall 20 + Time tTF 0.1CB 300 ns GPIO External Sync Low GPIO_CTRL = 10 5 μs Pulse Width tPLGPIO GPIO_CTRL = 2 64 μs Note 1: All devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by MaximIntegrated’s bench or proprietary automated test equipment (ATE) characterization. Note 2: VLED should be set to accommodate the maximum LED forward voltage and the output compliance of the LED driver. Note 3: The LED current is trim in production to meet the IR, GREEN, and RED ADC counts. Actual values can vary by up to ±50%. Values shown here are for 0% trim. Note 4: For design guidance only. Not production tested. Tested in die form only. Note 5: For design guidance only. Not production tested. www.maximintegrated.com Maxim Integrated │
10 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
