APDS-9200

APDS-9200 Digital UV and Ambient Light Sensor Data Sheet Description Features The Broadcom APDS-9200 device provides ultra-violet (UV-A and UV-B) sensing and ambient light sensing in a specially designed matrix arrangement for optimization. This allows the device to have optimal angular response for ultra-violet and ambient light sensing. The APDS-9200 converts UV light into digital data and display as UV index (1… >11) with higher values representing higher UV exposures.  The ultra-violet sensing feature is useful in consumer applications for monitoring of UV-A and UV-B radiation as UV radiation is part of the electromagnetic spectrum that reaches the earth from the sun. APDS-9200 is able to measure UV wavelength which has been classified into UV-A (320 nm – 400 nm) and UV-B (290 nm – 320 nm). The ambient light sensing is targeted for display management with the purpose of extending battery life and offers optimum viewing in diverse lightning conditions. APDS-9200 supports the I2C interface and has a programmable interrupt function that frees up micro-controller resources using upper and lower thresholds events.    Applications  Ordering Information Part Number APDS-9200 Packaging Tape and Reel  Quantity Ultra-Violet (UV-A and UV-B) and ambient light sensing — Digital UV Index register (1 … > 11) — Linear output — Excellent temperature compensation Ambient Light Sensing (ALS) — Utilizes coating technology to emulate human eye spectral response (V-Lamda characteristics) — High sensitivity in low lux condition – Ideally suited for operation behind dark glass — Low lux performance at 0.008 lux — Up to 20-bit resolution I2C Interface Compatible — Up to 400 kHz (I2C Fast-Mode) — Dedicated interrupt pin Small package: L 2.0 mm × W 2.0 mm × H 0.65 mm  2500 per reel Broadcom -1- Ultra-violet and Ambient Light Sensing Mobile devices – cell phones, tablets, outdoor navigation display Wearable devices – smart watch, sport watch APDS-9200 Data Sheet Figure 1 Functional Block Diagram VDD Regulator Interrupt Oscillator INT Upper Threshold ALS / UVS ADC ALS / UVS Data SCL I2C Interfacing Lower Threshold Upper Threshold SDA Lower Threshold Control Logic GND Detailed Description The APDS-9200 device contains multiple photodiodes for UV and Ambient Light Sensing as well as temperature compensation that are designed in a matrix placement to achieve optimum angular response at the fall of incident light angle. The photodiode currents are converted to digital count by ADCs. The ADC resolution is selected from 13 bits to 20 bits and the conversion time is inversely proportional to the ADC resolution. The device is connected by an I2C interface to a microcontroller through a set of registers. APDS-9200 has a programmable interrupt with hysteresis to respond to events which will reduce the microcontroller tasks with upper and lower thresholds. The device includes a circuit for an internal oscillator, a current source, voltage reference, and internal nonvolatile memory (NVM) to store trimming information. The UV light sensor has to be operated independently from Ambient Light Sensor. To enable the reading of UV sensor, UVS_MODE and LS_EN bit has to be correctly set in the MAIN_CTRL register. Setting the UVS_MODE bit will stop a running ALS measurement and start a new UV sensor reading. Table 1 I/O Pins Configuration Pin Name Type Description 1 SCL I I2C serial clock input terminal — clock signal for I2C serial data 2 SDA I/O I2C serial data I/O terminal – serial data I/O for I2C 3 VDD Supply Power Supply Voltage 4 INT O Interrupt – Open drain 5 NC 6 GND No Connect Ground Power supply ground. All voltages are referenced to GND Broadcom -2- APDS-9200 Data Sheet Table 2 Absolute Maximum Ratings over Operating Free-Air Temperature Range (unless Otherwise Noted) Parameter Symbol Power supply voltage VDD Max voltage on SCL, SDA, INT pads VI2C Storage temperature Tstg Min. Max. Units 4.0 V 0.5 4.0 V –40 95 °C Conditions All voltages are with respect to GND. Table 3 Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Units Operating ambient temperature TA –40 85 °C Supply voltage VDD 1.7 3.6 V –3 3 % Supply Voltage accuracy, VDD total error including transients Table 4 Electrical Parameters, TA=25°C (unless Otherwise Noted) Parameter Symbol Conditions Min. Typ. Max. Units ALS Active mode current IALS VDD = 2.8V, Gain Mode 3 110 μA UV Active mode current IUV VDD = 2.8V 100 μA Standby current ISTBY In Standby Mode. No active I2C communication 1 SCL, SDA input high voltage VIH SCL, SDA input low voltage 2 μA 1.5 VDD V VIL 0 0.4 V 0 0.4 V ILEAK –5 5 μA VOL INT, SDA output low voltage ILEAK leakage current, SDA, SCL, INT pins Table 5 ALS/UV Characteristics Parameter Symbol Dark count Min integration time Conditions Min. Lux=0, 18 bit range Tintmin1 Typ. Max. Units 0 counts 3.125 ms Tintmin2 With 50/60Hz rejection 50 ms Max integration time Tintmax With 50/60Hz rejection 400 ms ALS output resolution RESALS Programmable 13 18 20 bits UV output resolution RESUV Programmable 13 18 20 bits ADC count value Intensity = 121 μW/cm2 with 310 nm light source, GAIN = 18×, resolution = 20 bits, VDD = 2.8V ALS/UV repeat rate Programmable Broadcom -3- 1700 25 counts 2000 ms APDS-9200 Data Sheet Figure 2 ALS Spectral Response Figure 3 UV Spectral Response 1.1 1.1 1 APDS-9200 Human Eye 0.9 RELATIVE RESPONSIVITY RELATIVE RESPONSIVITY 1 0.8 0.7 0.6 0.5 0.4 0.3 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.2 0.1 0.1 0 0 300 400 500 600 700 800 900 1000 200 1100 300 400 500 600 700 800 WAVELENGTH (nm) WAVELENGTH (nm) Figure 5 ALS Sensor LUX vs. Meter LUX using White Light Figure 6 ALS Sensor LUX vs. Meter LUX using Incandescent Light Figure 7 UV Sensor Count vs. UV Meter Index (310 nm UV Source) 1000 2000 900 1800 800 1600 700 1400 UVS COUNT SENSOR LUX Figure 4 ALS Sensor LUX vs. Meter LUX using White Light 600 500 400 1200 1000 800 300 600 200 400 100 200 0 0 0 100 200 300 400 500 600 700 800 900 0 1000 1 2 3 4 UV INDEX METER LUX Broadcom -4- 5 6 7 8 APDS-9200 Data Sheet Figure 8 Normalized Standby IDD vs. VDD Figure 9 Normalized Standby IDD vs. Temperature 2.00 2.00 1.80 1.80 1.60 Normalized IDD @ 2.8V Normalized IDD @ 25°C 1.60 1.40 1.20 1.00 0.80 0.60 1.40 1.20 1.00 0.80 0.60 0.40 0.40 0.20 0.20 0.00 0.00 -60 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 -40 -20 3.8 Figure 10 Normalized ALS Data Count @ 1000Lux White LED vs. VDD 40 60 80 100 Figure 11 Normalized UVS Data Count @ 121 μW/cm2 (310 nm) vs. VDD 1.10 1.08 1.08 Normalized UVS Data Count @ 25°C 1.10 1.06 1.04 1.02 1.00 0.98 0.96 0.94 0.92 1.06 1.04 1.02 1.00 0.98 0.96 0.94 0.92 0.90 0.90 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 1.6 1.8 2 2.2 2.4 VDD (V) 2.6 2.8 3 3.2 3.4 3.6 3.8 VDD (V) Figure 12 Normalized ALS Data Count @ 2.8V vs. Temperature Figure 13 Normalized UVS Data Count @ 121 μW/cm2 (310nm) VDD = 2.8V vs. Temperature 1.10 1.40 1.08 Normalized UVS Data Count @ 2.8V Normalized ALS Data Count @ 2.8V 20 Temperature (°C) VDD (V) Normalized ALS Data Count @ 25°C 0 1.06 1.04 1.02 1.00 Gain 1X 0.98 Gain 3X 0.96 Gain 6X 0.94 Gain 9X 0.92 Gain 18X 1.30 1.20 1.10 1.00 Gain 1X 0.90 Gain 3X 0.80 Gain 6X 0.70 Gain 9X Gain 18X 0.90 0.60 -60 -40 -20 0 20 40 60 80 100 -60 Temperature (°C) -40 -20 0 20 40 Temperature (°C) Broadcom -5- 60 80 100 APDS-9200 Data Sheet Standby Mode Normalized Responsitivity Figure 14 Normalized ALS Responsitivity vs. Angular Displacement Standby Mode is the default mode after power-up. In this state, the oscillator, all internal support blocks, and the ADCs are switched off but I2C™ communication is fully supported. 1.1 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 ALS and UVS Operation ALS measurements can be activated by setting the LS_EN bit to 1 and the UVS_Mode bit to 0 in the MAIN_CTRL register. UV measurements can be activated by setting the LS_EN bit to 1 and the UVS_Mode bit to 1 in the MAIN_CTRL register. -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Angle (Deg) As soon as ALS or UVS become activated through an I2C command, the internal support blocks are powered on. Once the voltages and currents are settled (typically after 5 ms), the state machine checks for trigger events from a measurement scheduler to start the ALS or UVS conversions according to the selected measurement repeat rates. Figure 15 System State Machine Start Once LS_EN is changed back to 0, a conversion running on the respective channel will be completed and the relevant ADCs and support blocks will move to standby mode. NVM Read Idle Interrupt Features APDS-9200 generates independent Light sensor (ALS/UVS depend on configuration) interrupt signal that can be multiplexed and output to the INT pad. The interrupt conditions are always evaluated after completion of a new conversion on the LS channels. LS_EN==0 Wait for OSC Power Up Check ALS or UVS LS_EN==1 UVS_MODE==1 Do UVS Conversion LS_EN==1 UVS_MODE==0 Light Sensor Interrupt Do ALS Conversion Start Up after Power-On or Software Reset The main state machine is set to “Start State” during power-on or software reset. As soon as the reset is released, the internal oscillator is started and the programmed I2C address and the trim values are read from the internal trimming data block. The APDS-9200 enters Standby Mode as soon as the idle state is reached. NOTE As long as the I2C address has not yet been read, the device will respond with NACK to any I2C command and ignore any request to avoid responding to a wrong I²C address. The LS interrupt is enabled by LS_INT_EN = 1. It can function as either threshold triggered (LS_VAR_MODE = 0) or variance trigged (LS_VAR_MODE = 1). The LS interrupt source generator either uses the ALS_DATA or the UVS_DATA registers at input. The LS interrupt source is selected by the LS_INT_SEL bits in the INT_CFG register. The Light Sensor threshold interrupt is enabled with LS_INT_EN = 1 and LS_VAR_MODE = 0. It is set when the data of the selected LS_DATA input register (ALS_DATA or UVS_DATA) is above the upper or below the lower threshold for a specified number of consecutive measurements. The Light Sensor variance interrupt is enabled with LS_INT_EN = 1 and LS_VAR_MODE = 1. It is set when the absolute value of the difference between the previous and current LS_DATA data value is above the decoded LS variance threshold for a specified number of consecutive measurements. Broadcom -6- APDS-9200 Data Sheet I2C Protocol If a read access is started on an address belonging to a non-readable register, the APDS-9200 will re-turn NACK until the I2C operation is ended. Interface and control of the APDS-9200 is accomplished through an I2C serial compatible interface (standard or fast mode) to a set of registers that provide access to device control functions and output data. The device supports a single slave address of 0x52 hex using 7 bit addressing protocol. (Contact the factory for other addressing options.) Read operations must follow the timing diagram in Figure 16. I2C Register Write The APDS-9200 registers can be written to individually or in block write mode. When two or more bytes are written in block write mode, reserved registers and read-only registers are skipped. The transmitted data is automatically applied to the next writable register. If a register includes read (R) and read/write (RW) bits, the register is not skipped. Data written to read-only bits are ignored. I2C Register Read The registers can be read individually or in block read mode. When two or more bytes are read in block read mode, reserved register addresses are skipped and the next valid address is referenced. If the last valid address has been reached, but the master continues with the block read, the address counter in the device will not roll over and the device returns 00HEX for every subsequent byte read. If the last valid address of the APDS-9200 address range is reached but the master attempts to continue the block write operation, the address counter of the APDS-9200 will not roll over. The device will return NACK for every following byte sent by the master until the I2C™ operation is ended. The block read operation is the only way to ensure correct data read out of multi-byte registers and to avoid splitting of results with HIGH and LOW bytes originating from different conversions. During block read access on LS result registers, the result update is blocked. If a write access is started on an address belonging to a non-writeable register, the APDS-9200 will return NACK until the I2C™ operation is ended. Write operations must follow the timing diagram in Figure 17. Figure 16 I2C Register Read Register Read (I2CTM Read) S Slave Addr 0 7 Bit A Slave Addr Address A S 7 Bit 8 Bit Write 1 A Data N 8 Bit P From Master to Slave S Start CondiƟon From Slave to Master P Stop CondiƟon Read A Acknowledge (ACK) Register Block Read (I2CTM Read) S Slave Addr 0 7 Bit A Address Slave Addr A S 8 Bit 7 Bit Write 1 A Data 8-Bit Data 8-Bit A A … Data N 8-Bit P N Not Acknowledge (NACK) Read Figure 17 I2C Register Write Register Write (I2CTM Write) S Slave Addr 0 7 Bit A Address A Data 8-Bit A From Master to Slave P From Slave to Master Write Register Block Write (I2CTM Write) S Slave Addr 0 7 Bit A Address A S Start CondiƟon P Stop CondiƟon A Acknowledge (ACK) Data 8-Bit A Data 8-Bit A … Data 8-Bit Write Broadcom -7- A P N Not Acknowledge (NACK) APDS-9200 Data Sheet Figure 18 I2C Interface – Bus Timing SDA t SUDAT t LOW t HDSTA t BUS SCL t HDSTA t SUSTO t HIGH t HDDAT t SUSTA Table 6 Bus Timing Characteristics Parameter Symbol Standard Mode Fast Mode Maximum SCL Clock Frequency fSCL 100 Minimum START Condition Hold Time Relative to SCL Edge tDSTA 4 μs Minimum SCL Clock Low Width tLOW 4.7 μs Minimum SCL Clock High Width tHIGH 4 μs Minimum START Condition Setup Time Relative to SCL Edge tSUSTA 4.7 μs Minimum Data Hold Time on SDA Relative to SCL Edge tHDDAT 0 μs Minimum Data Setup Time on SDA Relative to SCL Edge tSUDAT 0.1 Minimum STOP Condition Setup Time on SCL tSUSTO 4 μs Minimum Bus Free Time Between Stop Condition and Start Condition tBUS 4.7 μs Broadcom -8- 400 Units 0.1 KHz μs APDS-9200 Data Sheet Register Set The APDS-9200 is controlled and monitored by data registers and a command register accessed through the serial interface. These registers provide for a variety of control functions and can be read to determine results of the ADC conversions. NOTE Light Sensor (LS) refers to Ambient Light Sensor (ALS) or UV Sensor (UVS). Table 7 Register Set Address Type Name Description Reset Value 00HEX RW MAIN_CTRL LS operation mode control, software (SW) reset 00HEX 04HEX RW LS_MEAS_RATE LS measurement rate and resolution in active mode 22HEX 05HEX RW LS_GAIN LS analog gain range 01HEX 06HEX R PART_ID Part number ID and revision ID B1HEX 07HEX R MAIN_STATUS Power-on status, interrupt status, data status 20HEX 0DHEX R ALS_DATA_0 ALS ADC measurement data, LSB 00HEX 0EHEX R ALS_DATA_1 ALS ADC measurement data 00HEX 0FHEX R ALS_DATA_2 ALS ADC measurement data, MSB 00HEX 10HEX R UVS_DATA_0 UVS ADC measurement data, LSB 00HEX 11HEX R UVS_DATA_1 UVS ADC measurement data 00HEX 12HEX R UVS_DATA_2 UVS ADC measurement data, MSB 00HEX 13HEX R UVS_COMP_DATA_0 UVS COMP ADC measurement data, LSB 00HEX 14HEX R UVS_COMP_DATA_1 UVS COMP ADC measurement data 00HEX 15HEX R UVS_COMP_DATA_2 UVS COMP ADC measurement data, MSB 00HEX 16HEX R COMP_DATA_0 COMP ADC measurement data, LSB 00HEX 17HEX R COMP_DATA_1 COMP ADC measurement data 00HEX 18HEX R COMP_DATA_2 COMP ADC measurement data, MSB 00HEX 19HEX RW INT_CFG Interrupt configuration 10HEX 1AHEX RW INT_PERSISTENCE Interrupt persist setting 00HEX 21HEX RW LS_THRES_UP_0 LS interrupt upper threshold, LSB FFHEX 22HEX RW LS_THRES_UP_1 LS interrupt upper threshold, intervening bits FFHEX 23HEX RW LS_THRES_UP_2 LS interrupt upper threshold, MSB 0FHEX 24HEX RW LS_THRES_LOW_0 LS interrupt lower threshold, LSB 00HEX 25HEX RW LS_THRES_LOW_1 LS interrupt lower threshold, intervening bits 00HEX 26HEX RW LS_THRES_LOW_2 LS interrupt lower threshold, MSB 00HEX 27HEX RW LS_THRES_VAR LS interrupt variance threshold 00HEX Broadcom -9- APDS-9200 Data Sheet MAIN_CTRL Default Value: 00HEX 7 6 5 4 3 2 1 0 0 0 0 SW-Reset UVS_Mode 0 LS_EN 0 Field Bit 0X00 Description SW_Reset 4 1 = Reset will be triggered UVS_Mode 3 0 = ALS 1 = UVS + compensation channels activated only LS_EN 1 1 = ALS or UVS active 0 = ALS or UVS standby LS_MEAS_RATE Default Value: 22HEX 7 6 0 5 4 LS Resolution/Bit Width Field 3 0 Bit 2 1 LS Measurement Rate 0 0X01 Description LS Resolution / Bit Width 6:4 000: 001: 010: 011: 100: 101: 110: 111: 20 bit – 400 ms 19 bit – 200 ms 18 bit – 100 ms (default) 17 bit – 50 ms 16 bit – 25 ms 13 bit – 3.125 ms Reserved Reserved LS Measurement Rate 2:0 000: 001: 010: 011: 100: 101: 110: 111: 25 ms 50 ms 100 ms (default) 200 ms 500 ms 1000 ms 2000 ms 2000 ms When the measurement repeat rate is programmed to be faster than possible for the specified ADC measurement time, the repeat rate will be lower than programmed (maximum speed). Writing to this register stops the ongoing measurements and starts new measurements (depends on the respective bit). Broadcom - 10 - APDS-9200 Data Sheet ALS_GAIN and UVS_Gain Default Value: 01HEX 7 6 5 4 3 0 0 0 0 0 Field 2 1 0 Gain Range Bit 0X05 Description LS Gain Range (ALS Mode) 2:0 000: Gain 1 001: Gain 3 (default) 010: Gain 6 011: Gain 9 100: Gain 18 LS Gain Range (UVS Mode) 2.0 000: Gain 1 001: Gain 3 (default) 010: Gain 6 011: Gain 9 100: Gain 18 Writing to this register stops the ongoing measurements and starts new measurements (depends on the respective bit). PART_ID Default Value: B1HEX 7 6 5 4 3 Part ID Field 2 1 Revision ID Bit Description Part Number ID 7:4 Part number ID Revision ID 3:0 Revision ID of the component. Broadcom - 11 - 0 0X06 APDS-9200 Data Sheet MAIN_STATUS Default Value: 20HEX 7 6 5 0 0 Power On Status Field 4 3 LS Interrupt LS Data Status Status 2 1 0 0 0 0 Bit 0X07 Description Power On status 5 1 = Part went through a power-up event, either because the part was turned on or because there was power supply disturbance. All interrupt threshold settings in the registers have been reset to power-on default states and should be examined if necessary. The flag is cleared after the register is read. LS Interrupt status 4 0: Interrupt condition not fulfilled (default) 1: Interrupt condition fulfilled (cleared after read) LS Data status 3 0: old data, already read (default) 1: new data, not yet read (cleared after read) ALS_DATA Default Value: 00HEX, 00HEX, 00HEX 7 0 6 5 0 0 4 3 2 1 0 ALS_Data_0 [7:0] 0X0D ALS_Data_1 [15:8] 0x0E 0 ALS_Data_2 [19:16] 0X0F ALS channel digital output data (unsigned integer, 13 to 20 bit, LSB aligned). The ALS channel output is already temperature compensated internally: ALS_DATA = (ALSint – COMP). When an I2C™ read operation is active and points to an address in the range 07HEX to 18HEX, all registers in this range are locked until the I2C™ read operation is completed or this address range is left. This guarantees that the data in the registers comes from the same measurement even if an additional measurement cycle ends during the read operation. New measurement data is stored into temporary registers and the actual ALS_DATA registers are updated as soon as there is no on-going I2C™ read operation to the address range 07HEX to 18HEX. Reg 0DHEX Bit[7:0] ALS diode data least significant data byte Reg 0EHEX Bit[7:0] ALS diode data intervening data byte Reg 0FHEX Bit[3:0] ALS diode data most significant data byte Broadcom - 12 - APDS-9200 Data Sheet UVS_DATA Default Value: 00HEX, 00HEX, 00HEX 7 6 5 4 3 2 1 0 UVS_Data_0 [7:0] 0X10 UVS_Data_1 [15:8] 0 0 0 0x11 0 UVS_Data_2 [19:16] 0X12 UVS channel digital output data (unsigned integer, 13 to 20 bit, LSB aligned). The UVS channel output is already temperature compensated internally: UVS_DATA = (UVint – UVS_COMP) When an I2C™ read operation is active and points to an address in the range 07HEX to 18HEX, all registers in this range are locked until the I2C™ read operation is completed or this address range is left. This guarantees that the data in the registers comes from the same measurement even if an additional measurement cycle ends during the read operation. New measurement data is stored into temporary registers and the actual UVS_DATA registers are updated as soon as there is no on-going I2C™ read operation to the address range 07HEX to 18HEX. Reg 10HEX Bit[7:0] UVS diode data least significant data byte Reg 11HEX Bit[7:0] UVS diode data intervening data byte Reg 12HEX Bit[3:0] UVS diode data most significant data byte UVS_COMP_DATA Default Value: 00HEX, 00HEX, 00HEX 7 0 6 5 0 0 4 3 2 1 0 UVS_Comp_Data_0 [7:0] 0X13 UVS_Comp_Data_1 [15:8] 0x14 0 UVS_Comp Data_2 [19:16] 0X15 UVS Compensation Channel digital output data (unsigned integer, 13 to 20 bit, LSB aligned). The UVS Comp Channel data is clipped at (2Resolution – 1). When an I2C™ read operation is active and points to an address in the range 07HEX to 18HEX, all registers in this range are locked until the I2C™ read operation is completed or this address range is left. This guarantees that the data in the registers comes from the same measurement even if an additional measurement cycle ends during the read operation. New measurement data is stored into temporary registers and the actual UVS_COMP_DATA registers are updated as soon as there is no on-going I2C™ read operation to the address range 07HEX to 18HEX. Reg 13HEX Bit[7:0] UVS Comp diode data least significant data byte Reg 14HEX Bit[7:0] UVS Comp diode data intervening data byte Reg 15HEX Bit[3:0] UVS Comp diode data most significant data byte Broadcom - 13 - APDS-9200 Data Sheet COMP_DATA Default Value: 00HEX, 00HEX, 00HEX 7 6 5 4 3 2 1 0 Comp_Data_0 [7:0] 0X16 Comp_Data_1 [15:8] 0 0 0 0x17 0 Comp_Data_2 [19:16] 0X18 ALS compensation channel digital output data (unsigned integer, 13 to 20 bit, LSB aligned). The compensation channel data is clipped at (2Resolution – 1). If an I2C read operation is active and points to an address in the range 07HEX to 18HEX, all registers in this range are locked until the I2C read operation is completed or this address range is left. This guarantees that the data in the registers comes from the same measurement even if an additional measurement cycle ends during the read operation. New measurement data is stored into temporary registers and the actual COMP_DATA registers are updated as soon as there is no on-going I2C read operation to the address range 07HEX to 18HEX. Reg 16HEX Bit[7:0] ALS Comp diode data least significant data byte Reg 17HEX Bit[7:0] ALS Comp diode data intervening data byte Reg 18HEX Bit[3:0] ALS Comp diode data most significant data byte INT_CFG Default Value: 10HEX 7 6 0 0 0 0 5 3 2 1 0 LS Interrupt Source LS Variation Interrupt Mode LS Interrupt Enable 0 0 LS_INT_SEL LS_VAR_ MODE LS_INT_EN 0 0 FIELD 4 BIT DESCRIPTION LS_INT_SEL 5:4 00: IR Channel 01: ALS Channel (default) 10: Reserved 11: UVS Channel LS_VAR_MODE 3 0: LS Threshold Interrupt Mode (default) 1: LS Variation Interrupt Mode LS_INT_EN 2 0: LS Interrupt Disabled (default) 1: LS Interrupt Enabled Broadcom - 14 - 0X19 APDS-9200 Data Sheet INT_PERSISTENCE Default Value: 00HEX 7 6 5 4 LS_PERSIST FIELD 3 2 1 0 0 0 0 0 BIT LS_PERSIST 7:4 0X1A DESCRIPTION 0000: Every LS value out of threshold range (default) asserts an interrupt. 0001: 2 consecutive LS values out of threshold range assert an interrupt. … 1111: 16 consecutive LS values out of threshold range assert an interrupt. LS_THRES_UP Default Value: FFHEX, FFHEX, 0FHEX 7 0 6 0 5 0 4 3 2 1 0 LS_THRES_UP_0 0X21 LS_THRES_UP_1 0x22 0 LS_THRES_UP_2 0X23 LS_THRES_UP_x sets the upper threshold value for the LS interrupt. The Interrupt Controller compares the value in LS_THRES_UP_x against measured data in the DATA_x registers of the selected LS interrupt channel. It generates an interrupt event if DATA_x exceeds the threshold level. The data format for LS_THRES_UP_x must match that of the DATA_x registers. Reg 21HEX Bit[7:0] LS upper interrupt threshold value, LSB Reg 22HEX Bit[7:0] LS upper interrupt threshold value, intervening byte Reg 23HEX Bit[3:0] LS upper interrupt threshold value, MSB Broadcom - 15 - APDS-9200 Data Sheet LS_THRES_LOW Default Value: 00HEX, 00HEX, 00HEX 7 6 5 4 3 2 1 0 LS_THRES_LOW_0 0X24 LS_THRES_LOW_1 0 0 0 0 0x25 LS_THRES_LOW_2 0X26 LS_THRES_LOW_x sets the lower threshold value for the LS interrupt. The Interrupt Controller compares the value in LS_THRES_LOW_x against measured data in the DATA_x registers of the selected LS interrupt channel. It generates an interrupt event if the DATA_x is below the threshold level. The data format for LS_THRES_LOW_x must match that of the DATA_x registers. Reg 24HEX Bit[7:0] LS lower interrupt threshold value, LSB Reg 25HEX Bit[7:0] LS lower interrupt threshold value, intervening byte Reg 26HEX Bit[3:0] LS lower interrupt threshold value, MSB LS_THRES_VAR Default Value: 00HEX 7 6 5 4 3 0 0 0 0 0 FIELD LS_THRES_VAR BIT 2:0 2 1 0 LS_THRES_ VAR DESCRIPTION 000: new LS_DATA varies by 8 counts compared to previous result. 001: new LS_DATA varies by 16 counts compared to previous result. 010: new LS_DATA varies by 32 counts compared to previous result. 011: new LS_DATA varies by 64 counts compared to previous result. … 1111: new LS_DATA varies by 1024 counts compared to previous result. Broadcom - 16 - 0X27 APDS-9200 Data Sheet Application Information Hardware The application hardware circuit for using implementing UVS and ALS is simple with the APDS-9200 and is shown in following figure. The bypass capacitor is placed as close to the device package and is connected directly to the power source and to the ground, as shown in the following figure. It allows the AC component of the VDD to pass through to ground. It is suggested to have bypass capacitor that have low effective series resistance (ESR) and low effective series inductance (ESI), such as the common ceramic types, which provide a low impedance path to ground at high frequencies to handle transient currents caused by internal logic switching. Pull-up resistors, RSDA and RSCL, maintain the SDA and SCL lines at a high level when the bus is free and ensure the signals are pulled up from a low to a high level within the required rise time. A pull-up resistor, RINT, is also required for the interrupt (INT), which functions as a wired-AND signal in a similar fashion to the SCL and SDA lines. A typical impedance value of 10 k can be used. For a complete description of I2C maximum and minimum R1 and R2 values, please review the I2C Specification at http://www.semiconductors.philips.com. Figure 19 Application Hardware Circuit VBUS VDD R INT RSDA R SCL 1uF SCL SCL SDA SDA INT INT MCU APDS-9200 GND Broadcom - 17 - APDS-9200 Data Sheet Figure 20 Package Outline Dimensions 2±0.10 0.65±0.10 (4x) 0.65±0.10 0.750±0.100 (6x) 0.625±0.100 (6x) 2±0.10 CL CL IC Active Area Center 0.103 CL 0.300±0.050 (6x) CL PINOUT 1- SCL 2- SDA 3- VDD 4- INT 5- NC 6- GND NOTE 0.100±0.050 (6x) All dimensions are in millimeters. Figure 21 PCB Pad Layout 2 2 1.300 (x3) 0.900 (x6) 0.650 (x4) NOTE 0.400 (x6) All dimensions are in millimeters. Broadcom - 18 - APDS-9200 Data Sheet Figure 22 Tape Dimensions 2 ±0.050 4 ±0.10 Ø 1.50 ±0.10 A 4 ±0.10 0.254 ±0.200 1.75 ±0.10 5 Deg Max 8 +0.300 -0.100 3.500 ±0.050 B B C A Ø 1 ±0.25 2.180 ±0.050 0.830 ±0.050 SECTION A-A SCALE 10 : 1 5 Deg Max SECTION B-B SCALE 10 : 1 DETAIL C SCALE 20 : 1 Unit Orientation NOTE All dimensions are in millimeters. Figure 23 Reel Dimensions T Tape Start Slot CCD/KEACO Measured at Hub W1 T Tape Start Slot MADE IN MALAYSIA Access Hole Access Hole 13 r 0.2 Arbor Hole 20.2 Min. 60 r 0.50 Hub Dia. ‡180 r 0.50 Diameter Access Hole W2 Measured at Hub W3 Measured at Outer Edge Front View NOTE Back View All dimensions are in millimeters. Broadcom - 19 - Side View APDS-9200 Data Sheet Moisture Proof Packaging All APDS-9200 options are shipped in moisture proof package. Once opened, moisture absorption begins. This part is compliant to JEDEC MSL 3. Figure 24 Moisture Proof Packaging Units in A Sealed Mositure-Proof Package Package Is Opened (Unsealed) Environment less than 30 deg C, and less than 60% RH? Yes No Baking Is Necessary Package Is Opened less than 168 hours? Yes No Perform Recommended Baking Conditions Table 8 Baking Conditions Package Table 9 Recommended Storage Conditions Temperature Time In Reel 60°C 48 hours In Bulk 100°C 4 hours If the parts are not stored in dry conditions, they must be baked before reflow to prevent damage to the parts. Baking should only be done once. No Storage Temperature 10°C to 30°C Relative Humidity below 60% RH Time from unsealing to soldering: After removal from the bag, the parts should be soldered within 168 hours if stored at the recommended storage conditions. If times longer than 168 hours are needed, the parts must be stored in a dry box. Broadcom - 20 - APDS-9200 Data Sheet Figure 25 Recommended Reflow Profile MAX 260° C R3 R4 TEMPERATURE (°C) 255 230 217 200 180 150 120 R2 60 sec to 120 sec Above 217° C R5 R1 80 25 0 50 P1 HEAT UP 100 150 P2 SOLDER PASTE DRY 200 P3 SOLDER REFLOW 250 P4 COOL DOWN 300 t-TIME (SECONDS) Table 10 Reflow Information Process Zone Heat Up P1, R1 Maximum T/time or Duration T Symbol 25°C to 150°C 3°C/s Solder Paste Dry P2, R2 150°C to 200°C 100 s to 180s Solder Reflow P3, R3 P3, R4 200°C to 260°C 260°C to 200°C 3°C/s –6°C/s Cool Down P4, R5 200°C to 25°C –6 °C/s Time maintained above liquidus point, 217°C > 217°C 60s to 120s Peak Temperature 260°C — Time within 5°C of actual Peak Temperature > 255°C 20s to 40s Time 25°C to Peak Temperature 25°C to 260°C 8 mins The reflow profile is a straight-line representation of a nominal temperature profile for a convective reflow solder process. The temperature profile is divided into four process zones, each with different T/time temperature change rates or duration. The T/time rates or duration are detailed in the above table. The temperatures are measured at the component to printed circuit board connections. In process zone P1, the PC board and component pins are heated to a temperature of 150°C to activate the flux in the solder paste. The temperature ramp up rate, R1, is limited to 3°C per second to allow for even heating of both the PC board and component pins. Process zone P2 should be of sufficient time duration (100 to 180 seconds) to dry the solder paste. The temperature is raised to a level just below the liquidus point of the solder. Process zone P3 is the solder reflow zone. In zone P3, the temperature is quickly raised above the liquidus point of solder to 260°C (500°F) for optimum results. The dwell time above the liquidus point of solder should be between 60 and 120 seconds. This is to assure proper coalescing of the solder paste into liquid solder and the formation of good solder connections. Beyond the recommended dwell time the intermetallic growth within the solder connections becomes excessive, resulting in the formation of weak and unreliable connections. The temperature is then rapidly reduced to a point below the solidus temperature of the solder to allow the solder within the connections to freeze solid. Process zone P4 is the cool down after solder freeze. The cool down rate, R5, from the liquidus point of the solder to 25°C (77°F) should not exceed 6°C per second maximum. This limitation is necessary to allow the PC board and component pins to change dimensions evenly, putting minimal stresses on the component. It is recommended to perform reflow soldering no more than twice. It is recommended to perform a calibration of the UVS ADC output against a calibrated UV test light source after final reflow and product assembly. Broadcom - 21 - For product information and a complete list of distributors, please go to our web site: www.broadcom.com. Broadcom, the pulse logo, Connecting everything, Avago Technologies, Avago, and the A logo are among the trademarks of Broadcom and/or its affiliates in the United States, certain other countries and/or the EU. Copyright © 2015–2017 by Broadcom. All Rights Reserved. The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries. For more information, please visit www.broadcom.com. Broadcom reserves the right to make changes without further notice to any products or data herein to improve reliability, function, or design. Information furnished by Broadcom is believed to be accurate and reliable. However, Broadcom does not assume any liability arising out of the application or use of this information, nor the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. AV02-4886EN – January 25, 2017