Data Sheet

VCNL4040
www.vishay.com
Vishay Semiconductors
Rev. 1.4, 02-Mar-15
10
Document Number: 84274
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TABLE 3 - REGISTER: 00H_H DESCRIPTION
REGISTER: Reserved COMMAND CODE: 0x00_H (0x00 DATA BYTE HIGH)
Command Bit Description
Reserved 7 : 0 Default = (0 : 0 : 0 : 0 : 0 : 0 : 0 : 0)
TABLE 4 - REGISTER ALS_THDH_L AND ALS_THDH_M DESCRIPTION
COMMAND CODE: 0x01_L (0x01 DATA BYTE LOW) OR 0x01_H (0x01 DATA BYTE HIGH)
Register Bit Description
ALS_THDH_L 7 : 0 0x00 to 0xFF, ALS high interrupt threshold LSB byte
ALS_THDH_M 7 : 0 0x00 to 0xFF, ALS high interrupt threshold MSB byte
TABLE 5 - REGISTER: ALS_THDL_L AND ALS_THDL_M DESCRIPTION
COMMAND CODE: 0x02_L (0x02 DATA BYTE LOW) AND 0x02_H(0x02 DATA BYTE HIGH)
Register Bit Description
ALS_THDL_L 7 : 0 0x00 to 0xFF, ALS low interrupt threshold LSB byte
ALS_THDL_M 7 : 0 0x00 to 0xFF, ALS low interrupt threshold MSB byte
TABLE 6 - REGISTER: PS_CONF1 DESCRIPTION
REGISTER: PS_CONF1 COMMAND CODE: 0x03_L (0x03 DATA BYTE LOW)
Command Bit Description
PS_Duty 7 : 6
(0 : 0) = 1/40, (0 : 1) = 1/80, (1 : 0) = 1/160, (1 : 1) = 1/320
PS IRED on / off duty ratio setting
PS_PERS 5 : 4
(0 : 0) = 1, (0 : 1) = 2, (1 : 0) = 3, (1 : 1) = 4
PS interrupt persistence setting
PS_ IT 3 : 1
(0 : 0 : 0) = 1T, (0 : 0 : 1) = 1.5T, (0 : 1 : 0) = 2T, (0 : 1 : 1) = 2.5T, (1 : 0 : 0) = 3T, (1 : 0 : 1) = 3.5T,
(1 : 1 : 0) = 4T, (1 : 1 : 1) = 8T, PS integration time setting
PS_SD 0 0 = PS power on, 1 = PS shut down, default = 1
TABLE 7 - REGISTER: PS_CONF2 DESCRIPTION
REGISTER: PS_CONF2 COMMAND CODE: 0x03_H (0x03 DATA BYTE HIGH)
Command Bit Description
Reserved 7 : 6 (0 : 0), reserved
Reserved 5 : 4 (0 : 0), reserved
PS_HD 3 0 = PS output is 12 bits; 1 = PS output is 16 bits
Reserved 2 Default = 0
PS_INT 1 : 0
(0 : 0) = interrupt disable, (0 : 1) = trigger when close, (1 : 0)= trigger when away,
(1 : 1)= trigger when close or away
TABLE 8 - REGISTER: PS_CONF3 DESCRIPTION
REGISTER: PS_CONF3 COMMAND CODE: 0x04_L (0x04 DATA BYTE LOW)
Command Bit Description
Reserved 7 0
Reserved 6 : 5 (0 : 0)
PS_SMART_PERS 4 0 = disable; 1 = enable PS smart persistence
PS_AF 3 0 = active force mode disable (normal mode), 1 = active force mode enable
PS_TRIG 2
0 = no PS active force mode trigger, 1 = trigger one time cycle
VCNL4040 output one cycle data every time host writes in ‘1’ to sensor.
The state returns to ‘0’ automatically.
Reserved 1 : 0 (0 : 0)