TMD27721 Datasheet, PDF (24/35 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – DIGITAL ALS and PROXIMITY MODULE

TMD2772
DIGITAL ALS
and PROXIMITY MODULE
TAOS147E − DECEMBER 2012
Configuration Register (0x0D)
The configuration register sets the proximity LED drive level, wait long time, and ALS gain level.
Table 12. Configuration Register
7
6
5
4
3
2
1
0
Reset
CONFIG
FIELD
lid Reserved
AGL
a WLONG
PDL
BITS
7:3
2
1
0
Reserved
AGL
WLONG
PDL
0x00
DESCRIPTION
Reserved. Write as 0.
ALS gain level. When asserted, the 1× and 8× ALS gain (AGAIN) modes are scaled by 0.16. Otherwise,
AGAIN is scaled by 1. Do not use with AGAIN greater than 8×.
Wait Long. When asserted, the wait cycles are increased by a factor 12× from that programmed in the
WTIME register.
Proximity drive level. When asserted, the proximity LDR drive current is reduced by 9.
ill v Proximity Pulse Count Register (0x0E)
The proximity pulse count register sets the number of proximity pulses that the LDR pin will generate during the
t _{Prox Accum state. The pulses are generated at a 62.5-kHz rate.}
G _{s Table 13. Proximity Pulse Count Register}
s ^{A nt PPULSE}
e _FIELD
Technicaaml ^{cont PPULSE}
7
BITS
7:0
6
5
4
3
2
1
0
PPULSE
DESCRIPTION
Proximity Pulse Count. Specifies the number of proximity pulses to be generated.
Reset
0x00
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