Si1143-A10-GM Silicon Laboratories Inc, Si1143-A10-GM Datasheet - Page 56

• Manufacturer Part Number: Si1143-A10-GM
• Description: Proximity Sensors IC INTERFACE
• Manufacturer: Silicon Laboratories Inc

Specifications of Si1143-A10-GM

• Maximum Operating Temperature: + 85 C
• Supply Voltage: 3.3 V
• Supply Current: 5.6 mA to 360 mA
• Operating Supply Voltage: 1.8 V to 3.6 V
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Current Rating: 359 mA
• Voltage Rating: 4 V
• Sensing Distance: 1 m
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Si1141/42/43
PS_ADC_COUNTER @ 0x0A
Reset value = 0000 0000
PS_ADC_GAIN @ 0x0B
Reset value = 0000 0000
56
Name
Type
Name
7:3
2:0
Bit
Type
Bit
6:4
3:0
Bit
Bit
7
PS_ADC_GAIN[2:0]
PS_ADC_REC[2:0] Recovery period the ADC takes before making a PS measurement.
7
Reserved
Reserved
Reserved
7
Name
Name
6
RW
6
000: 1 ADC Clock (50 ns)
001: 7 ADC Clock (350 ns)
010: 15 ADC Clock (750 ns)
011: 31 ADC Clock (1.55 µs)
100: 63 ADC Clock (3.15 µs)
101: 127 ADC Clock (6.35 µs)
110: 255 ADC Clock (12.75 µs)
111: 511 ADC Clock (25.55 µs)
Always set to 0.
PS_ADC_REC[2:0]
Increases the irLED pulse width and ADC integration time by a factor of
(2 ^ PS_ADC_GAIN) for all PS measurements.
Care must be taken when using this feature. At an extreme case, each of the
three PS measurements can be configured to drive three separate irLEDs,
each of which, are configured for 359 mA. The internal sequencer does not
protect the device from such an error. To prevent permanent damage to the
device, do not enter any value greater than 5 without consulting with Silicon
Labs.
For Example:
0x0: ADC Clock is divided by 1
0x4: ADC Clock is divided by 16
0x5: ADC Clock is divided by 32
R/W
5
5
Rev. 1.1
R/W
4
4
3
Function
3
Function
R/W
2
2
PS_ADC_GAIN[2:0]
R/W
1
1
R/W
0
0