TMD27721 Datasheet, PDF (21/35 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – DIGITAL ALS and PROXIMITY MODULE

TMD2772
DIGITAL ALS
and PROXIMITY MODULE
TAOS147E − DECEMBER 2012
ALS Time Register (0x01)
The ALS time register controls the internal integration time of the ALS channel ADCs in 2.73 ms increments.
Upon power up, the ALS time register is set to 0xFF.
Table 6. ALS Integration Time Register
FIELD
BITS
DESCRIPTION
lid ^ATIME
7:0
VALUE
0xFF
0xF6
0xDB
0xC0
0x00
INTEG_CYCLES
1
10
37
64
256
TIME
2.73 ms
27.3 ms
101 ms
175 ms
699 ms
MAX COUNT
1024
10240
37888
65535
65535
va _{Proximity Time Register (0x02)}
ill ^{The proximity time register controls the integration time of the proximity ADC in 2.73 ms increments. Upon power}
up, the proximity time register is set to 0xFF. It is recommended that this register be programmed to a value of
0xFF (1 integration cycle).
G _{st FIELD}
A ^t _PTIME
BITS
7:0
Table 7. Proximity Integration Time Control Register
VALUE
0xFF
DESCRIPTION
INTEG_CYCLES
1
TIME
2.73 ms
MAX COUNT
1023
s _{en Wait Time Register (0x03)}
m ^t _{Wait time is set 2.73 ms increments unless the WLONG bit is asserted in which case the wait times are 12×}
a ^{n longer. WTIME is programmed as a 2’s complement number. Upon power up, the wait time register is set to}
0xFF.
co _FIELD
ical ^WTIME
BITS
7:0
Table 8. Wait Time Register
REGISTER VALUE
0xFF
0xB6
0x00
DESCRIPTION
WAIT TIME
TIME (WLONG = 0)
1
2.73 ms
74
202 ms
256
699 ms
TIME (WLONG = 1)
0.033 sec
2.4 sec
8.4 sec
Techn ^{NOTE: The Proximity Wait Time Register should be configured before PEN and/or AEN is/are asserted.}
Copyright E 2012, TAOS Inc.
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