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ISL29038IROZ-EVALZ

P1-P3P4-P6P7-P9P10-P12P13-P15
ISL29038
7
FN7851.1
January 23, 2015
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Typical Performance Curves
FIGURE 6. PROXIMITY SENSITIVITY (Note 13) FIGURE 7. ALS SENSITIVITY (Note 14)
FIGURE 8. PROXIMITY AMBIENT LIGHT REJECTION (Note 15
) FIGURE 9. ALS ANGULAR SENSITIVITY (Note 16)
NOTES:
13. The ISL29038 Proximity distance sweeps with different IRDR LED current settings using an 18% Grey card reflector.
14. The ISL29038 Ambient Light Sensor Spectral response when compared to a theoretical CIE 1924 Photopic curve. The ‘Blue’ line shows the ISL29038
response and the ‘Red’ line depicts the CIE 1924 Photopic curve.
15. The ISL29038 Proximity Ambient Light Rejection using a Norwood Solar Emulator. At 40k lux ambient light level, the Proximity Washout Count (Reg
0x0D[7:1]) is 127 indicating a saturation in Proximity Signal processing path. The Proximity Washout bit 0x0D[0] is active at approximately 90% of
the maximum level. At 10% initial PROX count (due to optical leakage from IR LED to the ISL29038), the PROX data error is under 2%. At 50% initial
PROX count (severe optical leakage), the PROX data error is about 7%.
16. The Ambient Light Sensor Angular Sensitivity of the ISL29038 using a white LED light source.
ISL29038
8
FN7851.1
January 23, 2015
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ISL29038 Register Set
TABLE 1. CONFIGURATION AND CONTROL REGISTERS
ADDRESS
(HEX) REGISTER NAME
POWER-ON
DEFAULT
REGISTER
ACCESS
BIT
FIELDS
FUNCTION
NAME/VALUE FUNCTION
0x00 Device ID b11000xxx RO [7:0] Device Identification
[7:3] [11000] ISL29038 Device ID
[2:0] Reserved
0x01 Config0 0x00 RW [7:0] Proximity Configuration
[7:6] Reserved
RW [5] PROX_EN Proximity Enable/Disable
[1] Enable
[0] Disable
RW [4:2] PROX_SLP Proximity Sleep Time Select
[000] 400ms
[001] 100ms
[010] 50ms
[011] 25ms
[100] 12.5ms
[101] 6.25ms
[110] 3.125ms
[111] 0ms
RW [1:0] IRDR_DRV IR LED Current
[00] 31.25mA
[01] 62.5mA
[10] 125mA
[11] 250mA
0x02 Config1 0x00 RW [7:0] Proximity/ALS Configuration
RW [7] INT_ALG Interrupt Algorithm
[1] Window Comparator
[0] Hysteresis Window
RW [6:3] PROX_OFFSET Proximity Offset Compensation
RW [2] ALS_EN Ambient Light Sensing Enable/Disable
[1] Enable
[0] Disable
RW [1:0] ALS_RANGE Ambient Light Sensor Range Select
[00] 125 Lux
[01] 250 Lux
[10] 2000 Lux
[11] 4000 Lux
0x03 Config2 0x00 RW [7:0] ALS_IR_COMP Ambient Light Sensor IR Compensation
RW [7:5] Reserved
RW [4:0] ALSIRComp ALS Infra Red Compensation
(Unsigned Binary)
0x04 INTConfig 0x10 RW [7:0] INTConfig Interrupt Configuration, Status and Control
ISL29038
9
FN7851.1
January 23, 2015
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RO [7] PROX_INT_FLG Proximity Interrupt Flag
[1] Proximity Interrupt Event
[0] No Proximity Interrupt Event
RW [6:5] PROX_PRST Proximity Interrupt Reporting Persistency
[00] INT
after 1 Proximity Flag Event
[01] INT after 2 Consecutive Proximity Flag Event
[10] INT after 4 Consecutive Proximity Flag Event
[11] INT after 8 Consecutive Proximity Flag Event
RO [4] PWR_FAIL Power Failure (Brown-out) Alarm
[1] Brown-Out Detected
[0] Normal Operation
RO [3] ALS_INT_FLG Ambient Light Sensor Interrupt Flag
[1] ALS Interrupt Flag Event
[0] No ALS Interrupt Flag Event
RW [2:1] ALS_INT_PRST ALS Interrupt Reporting Persistency
[00] INT
after 1 ALS Flag Event
[01] INT after 2 Consecutive ALS Flag Event
[10] INT after 4 Consecutive ALS Flag Event
[11] INT after 8 Consecutive ALS Flag Event
RW [0] INT_CFG Interrupt Output (Pin) Configuration
[1] Interrupt if ALS and PROX Event
[0] Interrupt if ALS or PROX Event
0x05 PROX_INT_TL 0x00 RW [7:0] PROX_INT_TL Proximity Interrupt LOW threshold
0x06 PROX_INT_TH 0xFF RW [7:0] PROX_INT_TH Proximity Interrupt HIGH threshold
0x07 ALS_INT_TL 0x00 RW [7:0] ALS_INT_TL1 ALS Interrupt LOW threshold bit[11:4]
0x08 ALS_INT_TLH 0x0F RW [7:0] ALS Interrupt LOW/HIGH threshold bits
[7:4] ALS_INT_TL0 ALS Interrupt LOW threshold bit[3:0]
[3:0] ALS_INT_TH1 ALS Interrupt HIGH threshold bit[11:8]
0x09 ALS_INT_TH 0xFF RW [7:0] ALS_INT_TH0 ALS Interrupt HIGH threshold bit[7:0]
0x0A PROX_DATA RO [7:0] PROX_DATA Proximity Data (Unsigned Binary)
0x0B ALS_DATA_HB RO [7:0] ALS_DATA_HB ALS Data HIGH Byte
[7:4] Set to 0000
[3:0] ALS Data Bit[11:8]
0x0C ALS_DATA_LB RO [7:0] ALS_DATA_LB ALS Data Bit[7:0]
0x0D PROX_AMBIR RO [7:0] PROX_AMBIR Proximity Mode Ambient IR Measurement
[7:1] Proximity Mode Ambient IR Component
RO [0] PROX_WASH Proximity Washout Status
[1] Proximity Washout Detected
[0] Normal Proximity Operation
0x0E Config3 0x00 [7:0] SoftReset Software Reset
0x38 Initiate Soft Reset
0x00 Normal operation
TABLE 1. CONFIGURATION AND CONTROL REGISTERS (Continued)
ADDRESS
(HEX) REGISTER NAME
POWER-ON
DEFAULT
REGISTER
ACCESS
BIT
FIELDS
FUNCTION
NAME/VALUE FUNCTION
P1-P3P4-P6P7-P9P10-P12P13-P15

ISL29038IROZ-EVALZ

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Optical Sensor Development Tools ISL29038IROZ-EVALZ (PB-Free ) EVALUATION BOARD - ROHs Compli
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