SI1141-A10-GMR Silicon Laboratories Inc, SI1141-A10-GMR Datasheet - Page 35

• Manufacturer Part Number: SI1141-A10-GMR
• Description: SENS IR PROXIMITY AMB LT 8-ODFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI1141-A10-GMR

• Mfg Application Notes: Si1141 Touchless Lavatory AppNote Si114x Designer's Guide AppNote Si114x Overlay Considerations AppNote Si1141 Cheek Detection in Smartphones C8051F990/Si1141 Smoke Detection AppNote Si114x irLED Guide AppNote Si114x Control Panel Guide AppNote
• Output Type: Digital - I²C
• Sensor Type: Proximity, Infrared and Ambient Light
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 336-1968; SI1141-A10-GM

MEAS_RATE @ 0x08
Reset value = 0000 0000
ALS_RATE @ 0x09
Reset value = 0000 0000
Bit
7:0
Bit
7:0
Name
Type
Name
Type
Bit
Bit
MEAS_RATE MEAS_RATE is an 8-bit compressed value representing a 16-bit integer. The
ALS_RATE
Name
Name
7
7
ALS_RATE is an 8-bit compressed value representing a 16-bit multiplier. This multi-
plier, in conjunction with the MEAS_RATE time, represents how often ALS Measure-
ments are made.
Example Values:
0x00: Autonomous ALS Measurements are not made.
0x08: ALS Measurements made every time the device wakes up.
(0x0001 x timeValueOf(MEAS_RATE))
0x32: ALS Measurements made every 10 times the device wakes up.
(0x000A x timeValueOf(MEAS_RATE)
0x69: ALS Measurements made every 100 times the device wakes up.
(0x0064 x timeValueOf(MEAS_RATE)
uncompressed 16-bit value, when multiplied by 31.25 us, represents the time dura-
tion between wake-up periods where measurements are made.
Example Values:
0x00: The device does not make any autonomous measurements
0x84: The device wakes up every 10 ms (0x140 x 31.25 µs)
0x94: The device wakes up every 20 ms (0x280 x 31.25 µs)
0xB9: The device wakes up every 100 ms (0x0C80 x 31.25 µs)
0xDF: The device wakes up every 496 ms (0x3E00 x 31.25 µs)
0xFF: The device wakes up every 1.984 seconds (0xF800 x 31.25 µs)
6
6
5
5
Rev. 1.1
4
MEAS_RATE
4
ALS_RATE
RW
RW
Function
Function
3
3
2
2
Si1141/42/43
1
1
0
0
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