Si1143-A10-GM Silicon Laboratories Inc, Si1143-A10-GM Datasheet
Si1143-A10-GM
Specifications of Si1143-A10-GM
Related parts for Si1143-A10-GM
Si1143-A10-GM Summary of contents
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... The photodiode response and associated digital conversion circuitry provide excellent immunity to artificial light flicker noise and natural light flutter noise. With two or more LEDs, the Si1142/43 is capable of supporting multiple-axis proximity motion detection. The Si1141/42/43 devices are provided in a 10-lead 2x2 mm QFN package and are capable of operation from 1.8 to 3.6 V over the – ...
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... Si1142 and Si1143 only. 2. Si1143 only. 3.3 V Host SDA SCL INT 3.3 V Host Figure 2. Si1143 Application with Three LEDs and Separate LED Power Supply Note: For more application examples, refer to “AN498: irLED Selection Guide for Si114x Proximity Applications” Filter ADC Digital Sequencer & ...
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... T C ABLE O F ONTENTS Section Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Proximity Sensing (PS Ambient Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Operational Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Off Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Initialization Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Forced Conversion Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Autonomous Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Programming Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Command and Response Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Command Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Resource Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Signal Path Software Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 I2C Registers ...
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Si1141/42/43 1. Electrical Specifications Table 1. Recommended Operating Conditions Parameter Symbol V Supply Voltage DD V OFF Supply Voltage Supply Ripple Voltage DD Operating Temperature SCL, SDA, Input High Logic Voltage SCL, SDA Input Low Logic Voltage ...
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... Notes: 1. Unless specifically stated in "Conditions", electrical data assumes ambient light levels < 1 klx. 2. Proximity-detection performance may be degraded, especially when there is high optical crosstalk, if the LED supply and voltage drop allow the driver to saturate and current regulation is lost. 3. Guaranteed by design and characterization. ...
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... Notes: 1. Unless specifically stated in "Conditions", electrical data assumes ambient light levels < 1 klx. 2. Proximity-detection performance may be degraded, especially when there is high optical crosstalk, if the LED supply and voltage drop allow the driver to saturate and current regulation is lost. 3. Guaranteed by design and characterization. ...
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... Notes: 1. Unless specifically stated in "Conditions", electrical data assumes ambient light levels < 1 klx. 2. Proximity-detection performance may be degraded, especially when there is high optical crosstalk, if the LED supply and voltage drop allow the driver to saturate and current regulation is lost. 3. Guaranteed by design and characterization. ...
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... Notes: 1. Unless specifically stated in "Conditions", electrical data assumes ambient light levels < 1 klx. 2. Proximity-detection performance may be degraded, especially when there is high optical crosstalk, if the LED supply and voltage drop allow the driver to saturate and current regulation is lost. 3. Guaranteed by design and characterization. ...
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... Notes: 1. Unless specifically stated in "Conditions", electrical data assumes ambient light levels < 1 klx. 2. Proximity-detection performance may be degraded, especially when there is high optical crosstalk, if the LED supply and voltage drop allow the driver to saturate and current regulation is lost. 3. Guaranteed by design and characterization. ...
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Si1141/42/43 2 Table Timing Specifications Parameter Clock Frequency Clock Pulse Width Low Clock Pulse Width High Rise Time Fall Time Start Condition Hold Time Start Condition Setup Time Input Data Setup Time Input Data Hold Time Stop ...
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... For example, a sixteenfold change in an object's reflectance means only a fifty-percent drop in detection range. The Si1143 can drive three separate infrared LEDs. When the three infrared LEDs are placed in an L-shaped configuration possible to triangulate an object within the three-dimensional proximity field. Thus, a touchless user interface can be implemented with the aid of host software ...
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... Even if the RESPONSE register has an overflow condition, commands are still accepted and processed. Proximity detection ranges beyond 50 cm and up to several meters can be achieved without lensing by selecting a longer integration time. The detection range may be increased further, even with high ambient light, by averaging multiple measurements. Refer to “ ...
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The window can be applied to either the Visible Ambient Measurement, or the Infrared Ambient Measurement, but not both. However, monitoring the ambient change in either channel should allow notification that the ambient light level has changed. Figure 3. Photodiode ...
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Si1141/42/43 2 encountered write access with only two bytes is typically used to set up the Si1141/42/43 internal address 2 in preparation for read The I C read access, like the I ...
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Figure 9. Si1141/42/43 REG ADDRESS Format Notes: Gray boxes are driven by the host to the Si1141/42/43 White boxes are driven by the Si1141/42/43 to the host ACK or “acknowledge” NACK or ...
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... The Si1141/42/43 spends most of its time in Standby Mode. After the Si1141/42/43 completes the Initialization Mode sequence, it enters Standby mode. While in Standby Mode, the Si1141/42/43 does not perform any Ambient Light measurements or Proximity Detection functions. However, the I reads and writes to the Si1141/42/43 registers. The internal Digital Sequence Controller is in its sleep state and does not draw much power ...
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... The Si1141/42/43 can interrupt the host when the PS or ALS measurements reach a pre-set threshold. To assist in the handling of interrupts the registers are arranged so that the interrupt handler can perform an I operation to read the necessary registers, beginning with the interrupt status register, and cycle through the ALS data registers followed by the individual Proximity readings. Si1141/42/43 Rev. 1.1 ...
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... PS Counter and ALS Counter based on the PS_RATE and ALS_RATE registers. When the internal PS counter has expired three proximity measurements are made (PS1, PS2 and PS3) depending on which measurements are enabled via the upper bits of the CHLIST Parameter. All three PS measurements are performed, in sequence, beginning with the PS1 measurement channel ...
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Command Protocol 2 The I C map implements a bidirectional message box between the host and the Si1141/42/43 Sequencer. Host- 2 writable I C registers facilitate host-to-Si1141/42/43 communication, while read-only I Si1141/42/43-to-host communication. 2 Unlike the other host-writable I ...
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Si1141/42/43 Table 5. Command Register Summary (Continued) COMMAND Register PARAM_W R Register Name Encoding ALS_FORCE 000 00110 — PSALS_FORC 000 00111 — E Reserved 000 01000 — PS_PAUSE 000 01001 — ALS_PAUSE 000 01010 — PSALS_PAUS 000 01011 — E ...
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... PS1_ADC_OVERFLOW. Indicates proximity channel one conversion overflow. 1000 1001 PS2_ADC_OVERFLOW. Indicates proximity channel two conversion overflow. 1000 1010 PS3_ADC_OVERFLOW. Indicates proximity channel three conversion overflow. 1000 1100 ALS_VIS_ADC_OVERFLOW. Indicates visible ambient light channel conversion overflow. 1000 1101 ALS_IR_ADC_OVERFLOW. Indicates infrared ambient light channel conversion overflow ...
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Si1141/42/43 22 Rev. 1.1 ...
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Si1141/42/43 Rev. 1.1 23 ...
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Si1141/42/43 Table 9. Resource Summary for Hardware Pins Pin Name LED Current Drive LED1 LED1_I in PSLED12[3:0] LED2 LED2_I in PSLED12[7:4] LED3 LED3_I in PSLED3[3:0] INT The interrupts of the Si1141/42/43 are controlled through the INT_CFG, IRQ_ENABLE, IRQ_MODE1, IRQ_MODE2 and ...
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Table 10. PS1 Channel Interrupt Resources IRQ_ENABLE[2] IRQ_MODE1[5:4] PS1_IE PS1_IM[1: Note: There is hysteresis applied (PS_HYST) and history checking (PS_HISTORY). PS1_TH, PS_HYST and are encoded in 8-bit compressed ...
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Si1141/42/43 Table 13. Ambient Light Sensing Interrupt Resources IRQ_ENABLE[1:0] IRQ_MODE1[2:0] ALS_IE[1:0] ALS_IM[2: Notes: 1. For ALS_IR channel, interrupts per sample is not ...
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Signal Path Software Model The following diagram gives an overview of the signal paths, along with the I fields that control them. Sections with detailed descriptions of the Vdd Vdd C Large IR Large IR Vdd ...
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Si1141/42/ Registers 2 Address Register Name PART_ID 0x00 REV_ID 0x01 SEQ_ID 0x02 INT_CFG 0x03 IRQ_ENABLE 0x04 IRQ_MODE1 0x05 IRQ_MODE2 0x06 HW_KEY 0x07 HW_KEY MEAS_RATE 0x08 ALS_RATE 0x09 PS_RATE 0x0A ALS_LOW_TH 0x0B Reserved 0x0C ...
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Table 15 Address Register Name IRQ_STATUS 0x21 ALS_VIS_DATA 0x22 0 ALS_VIS_DATA 0x23 1 ALS_IR_DATA0 0x24 ALS_IR_DATA1 0x25 PS1_DATA0 0x26 PS1_DATA1 0x27 PS2_DATA0 0x28 PS2_DATA1 0x29 PS3_DATA0 0x2A PS3_DATA1 0x2B AUX_DATA0 0x2C AUX_DATA1 0x2D PARAM_RD 0x2E ...
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... Si1141/42/43 PART_ID @ 0x00 Bit 7 Name Type Reset value = 0100 0001 (Si1141) Reset value = 0100 0010 (Si1142) Reset value = 0100 0011 (Si1143) REV_ID @ 0x1 Bit 7 Name Type Reset value = 0000 0001 SEQ_ID @ 0x02 Bit 7 Name Type Reset value = 0000 1000 Bit Name Sequencer Revision ...
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INT_CFG @ 0x03 Bit 7 Name Type Reset value = 0000 0000 Bit Name 7:2 Reserved Reserved. 1 INT_MODE Interrupt Mode. The INT_MODE describes how the bits in the IRQ_STATUS Registers are cleared. 0: The IRQ_STATUS Register bits are set ...
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Si1141/42/43 IRQ_ENABLE @ 0x04 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:6 Reserved Reserved. 5 CMD_IE Command Interrupt Enable. Enables interrupts based on COMMAND/RESPONSE activity. 0: INT never asserts due to COMMAND/RESPONSE interface activity. 1: ...
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IRQ_MODE1 @ 0x05 Bit 7 6 PS2_IM Name RW Type Reset value = 0000 0000 Bit Name 7:6 PS2_IM PS2 Interrupt Mode applies only when PS2_IE is also set. 00: PS2_INT is set whenever a PS2 measurement has completed. 01: ...
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Si1141/42/43 IRQ_MODE2 @ 0x06 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:4 Reserved Reserved. 3:2 CMD_IM Command Interrupt Mode applies only when CMD_IE is also set. 00: CMD_INT is set whenever the RESPONSE register is ...
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MEAS_RATE @ 0x08 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 MEAS_RATE MEAS_RATE is an 8-bit compressed value representing a 16-bit integer. The uncompressed 16-bit value, when multiplied by 31.25 us, represents the time dura- ...
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Si1141/42/43 PS_RATE @ 0x0A Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 PS_RATE PS_RATE is an 8-bit compressed value representing a 16-bit multiplier. This multiplier, in conjunction with the MEAS_RATE time, represents how often PS ...
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ALS_HI_TH @ 0x0D Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 ALS_HI_TH ALS_HI_TH is an 8-bit compressed value representing a 16-bit threshold value. The uncompressed value represented by ALS_HI_TH (when used in conjunction with uncompressed ...
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Si1141/42/43 PS_LED21 @ 0x0F Bit 7 6 Name LED2_I Type Reset value = 0000 0000 Bit Name 7:4 LED2_I LED2_I Represents the irLED current sunk by the LED2 pin during a PS measurement. On the Si1141, these bits must be ...
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PS_LED3 @ 0x10 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:4 Reserved Reserved. 3:0 LED3_I LED3_I Represents the irLED current sunk by the LED3 pin during a PS measure- ment. See PS_LED21 Register for additional ...
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Si1141/42/43 PS3_TH @ 0x15 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 PS3_TH PS3_TH is an 8-bit compressed value representing a 16-bit threshold value. The uncompressed value represented by PS3_TH is compared to PS3 measurements ...
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RESPONSE @ 0x20 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 RESPONSE The Response register is used in conjunction with command processing. When an error is encountered, the response register will be loaded with an ...
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Si1141/42/43 IRQ_STATUS @ 0x21 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:6 Reserved Reserved. 5 CMD_INT Command Interrupt Status. 4 PS3_INT PS3 Interrupt Status. 3 PS2_INT PS3 Interrupt Status. 2 PS1_INT PS1 Interrupt Status. 1:0 ...
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ALS_VIS_DATA1 @ 0x23 Bit 7 Name Type Reset value = 0000 0000 Bit Name 7:0 ALS_VIS_DATA1 ALS VIS Data MSB. ALS_IR_DATA0 @ 0x24 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 ALS_IR_DATA0 ALS IR Data ...
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Si1141/42/43 PS1_DATA0 @ 0x26 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 PS1_DATA0 PS1 Data LSB. PS1_DATA1 @ 0x27 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 PS1_DATA1 PS1 Data ...
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PS2_DATA1 @ 0x29 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 PS2_DATA1 PS2 Data MSB. PS3_DATA0 @ 0x2A Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 PS3_DATA0 PS3 Data LSB. ...
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Si1141/42/43 AUX_DATA0 @ 0x2C Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 AUX_DATA0 AUX Data LSB. AUX_DATA1 @ 0x2D Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 AUX_DATA1 AUX Data ...
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CHIP_STAT @ 0x30 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:3 Reserved Reserved 2 RUNNING Device is awake. 1 SUSPEND Device low-power state, waiting for a measurement to complete. 0 SLEEP Device ...
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Si1141/42/43 4.6. Parameter RAM Parameter Name Offset Bit 7 I2C_ADDR 0x00 CHLIST 0x01 — PSLED12_SELECT 0x02 — PSLED3_SELECT 0x03 Reserved 0x04 PS_ENCODING 0x05 — ALS_ENCODING 0x06 PS1_ADCMUX 0x07 PS2_ADCMUX 0x08 PS3_ADCMUX 0x09 PS_ADC_COUNTER 0x0A — PS_ADC_GAIN 0x0B PS_ADC_MISC 0x0C Reserved ...
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Parameter Name Offset Bit 7 Reserved 0x1B LED_REC 0x1C ALS_IR_ADC_COUN 0x1D — TER ALS_IR_ADC_GAIN 0x1E ALS_IR_ADC_MISC 0x1F (always set to 0) Table 16. Parameter RAM Summary Table Bit 6 Bit 5 Bit 4 Reserved (do not modify from default setting ...
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Si1141/42/43 I2C @ 0x00 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 2 7 Address[7:0] Specifies a new I effect when a BUSADDR command is received. CHLIST @ 0x01 Bit 7 6 Name EN_AUX ...
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... Specifies the LED pin driven during the PS1 Measurement. Note that any combina- tion of irLEDs is possible. 000: NO LED DRIVE xx1: LED1 Drive Enabled x1x: LED2 Drive Enabled (Si1142 and Si1143 only. Clear for Si1141) 1xx: LED3 Drive Enabled (Si1143 only. Clear for Si1141 and Si1142 PS2_LED[2:0] ...
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... PS3_LED[2:0] Specifies the LED pin driven during the PS3 Measurement. Note that any combination of irLEDs is possible. 000: No LED drive. xx1: LED1 drive enabled. x1x: LED2 drive enabled (Si1142 and Si1143 only. Clear for Si1141). 1xx: LED3 drive enabled (Si1143 only. Clear for Si1141 and Si1142). PS_ENCODING @ 0x05 Bit 7 6 ...
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ALS_ENCODING @ 0x06 Bit 7 6 Name ALS_IR_ALIGN ALS_VIS_ALIGN Type Reset value = 0000 0000 Bit Name 7:6 Reserved 5 ALS_IR_ALIGN When set, the ADC reports the least significant 16 bits of the 17-bit ADC when performing ALS VIS Measurement. ...
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... In addition, the following selections are valid for PS_ADC_MODE = 0. With this setting, irLED drives are disabled and the PS channels are no longer operating in normal Proximity Detection function. The results have no reference and the refer- ences needs to be measured in a separate measurement. 0x02: Visible Photodiode A separate 'No Photodiode' measurement should be subtracted from this reading ...
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PS2_ADCMUX @ 0x08 Bit 7 6 Name Type Reset value = 0000 0011 Bit Name 7:0 PS2_ADCMUX[7:0] Selects input for PS2 measurement. See PS1_ADCMUX register description for details. PS3_ADCMUX @ 0x09 Bit 7 6 Name Type Reset value = 0000 ...
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Si1141/42/43 PS_ADC_COUNTER @ 0x0A Bit 7 6 Name PS_ADC_REC[2:0] Type RW Reset value = 0000 0000 Bit Name 7 Reserved 6:4 PS_ADC_REC[2:0] Recovery period the ADC takes before making a PS measurement. 000: 1 ADC Clock (50 ns) 001: 7 ...
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... Normal Signal Range 1: High Signal Range (Gain divided by 14.5) 4:3 Reserved 2 PS_ADC_MODE PS Channels can either operate normally as PS channels can be used to per- form raw ADC measurements: 0: Raw ADC Measurement Mode 1: Normal Proximity Measurement Mode 1:0 Reserved ALS_IR_ADCMUX @ 0x0E Bit 7 6 Name ...
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Si1141/42/43 AUX_ADCMUX @ 0x0F Bit 7 6 Name Type Reset value = 0110 0101 Bit Name 7:0 AUX_ADCMUX[7:0] Selects input for AUX Measurement. These measurements are referenced to GND. 0x65: Temperature (Should be used only for relative temperature measurement. Absolute ...
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ALS_VIS_ADC_GAIN @ 0x11 Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:3 Reserved 2:0 ALS_VIS_ADC_GAIN[2:0] Increases the ADC integration time for ALS Visible measurements by a Note: For A02 and earlier, this parameter also controls ALS-IR ...
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Si1141/42/43 ALS_HYST @ 0x16 Bit 7 6 Name Type Reset value = 0100 1000 Bit Name 7:0 ALS_HYST[7:0] ALS_HYST represents a hysteresis applied to the ALS_LOW_TH and ALS_HIGH_TH thresholds. This 8-bit compressed format, representing a 16-bit value. ...
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ALS_HISTORY @ 0x19 Bit 7 6 Name Type Reset value = 0000 0011 Bit Name 7:0 ALS_HISTORY[7:0] ALS_HISTORY is a bit-field representing the number of consecutive samples exceeding the threshold and hysteresis to change status. For example: 0x03: Two consecutive ...
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Si1141/42/43 LED_REC @ 0x1C Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:0 LED_REC[7:0] Reserved. ALS_IR_ADC_COUNTER @ 0x1D Bit 7 6 Name IR_ADC_REC[2:0] Type Reset value = 0111 0000 Bit Name 7 Reserved 6:4 IR_ADC_REC[2:0] Recovery ...
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ALS_IR_ADC_GAIN @ 0x1E Bit 7 6 Name Type Reset value = 0000 0000 Bit Name 7:3 Reserved 2:0 ALS_IR_ADC_GAIN[2:0] Increases the ADC integration time for IR Ambient measurements by a fac- Note: This parameter available for sequencer revisions A03 or ...
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... V Power DD 4 INT Bidirectional Interrupt Output LED2 Output 2 7 LED3 Output 8 GND Power 9 LED1 Output 10 DNC Notes: 1. Si1142 and Si1143 only. Connect Si1143 only. Connect to in Si1141 and Si1142 DNC 10 SDA 1 9 LED1 GND SCL 2 8 QFN-10 LED3 LED2 INT 4 6 ...
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... Ordering Guide Part Number Si1141-A10-GMR Si1142-A10-GMR Si1143-A10-GMR Si1141/42/43 Package LED Drivers QFN-10 1 QFN-10 2 QFN-10 3 Rev. 1.1 65 ...
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Si1141/42/43 7. Package Outline: 10-Pin QFN Figure 11 illustrates the package details for the Si1141/42/43 QFN package. Table 18 lists the values for the dimensions shown in the illustration. Figure 11. QFN Package Diagram Dimensions Table 18. Package Diagram Dimensions ...
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Pin 1 Small IR Photodiode Visible Photodiode (stacked photodiodes) 0.35 0.59 1.21 Figure 12. Photodiode Centers Rev. 1.1 Si1141/42/43 Large IR Photodiode 0.19 0.70 0.18 67 ...
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... Updated Table 8, Table 9. Updated Pin Assignments. Updated Register maps and description. Revision 0.4 to Revision 0.41 Added Si1141 and Si1142 in addition to Si1143. Added the ODFN-8 package option. Some sections were rearranged. Added the signal-path software-model schematic. ...
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N : OTES Si1141/42/43 Rev. 1.1 69 ...
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