Datasheet

t
0
t
29
ADC Conversion
Pulse Repetition Period (PRP),
One Cycle
t
14
t
15
t
16
t
13
t
17
t
18
t
19
t
20
t
21
t
22
t
23
t
24
t
25
t
26
t
27
t
28
ADC Reset
CONV
LED1_amb
,
Convert Ambient Sample
LED1 (IR) Phase
CONV
LED1
,
Convert LED1 (IR) Sample
CONV
LED2_amb
,
Convert Ambient Sample
LED2 (RED) Phase
CONV
LED2
,
Convert LED2 (RED) Sample
Two 4-MHz Clock Cycles
AFE4490
www.ti.com SBAS602F –DECEMBER 2012–REVISED OCTOBER 2013
(1) RED = LED2, IR = LED1.
Figure 63. Relationship Between the ADC Reset and ADC Conversion Signals
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