MAX30102 Datasheet, PDF (21/34 Pages) Maxim Integrated Products – Fast Data Output Capability

MAX30102
High-Sensitivity Pulse Oximeter and
Heart-Rate Sensor for Wearable Health
The purpose of PILOT_PA[7:0] is to set the LED power during the proximity mode, as well as in Multi-LED mode.
Multi-LED Mode Control Registers (0x11–0x12)
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
REG
ADDR
POR
STATE
R/W
Multi-LED
Mode Control
Registers
SLOT2[2:0]
SLOT4[2:0]
SLOT1[2:0]
SLOT3[2:0]
0x11
0x12
0x00 R/W
0x00 R/W
In multi-LED mode, each sample is split into up to four time slots, SLOT1 through SLOT4. These control registers determine
which LED is active in each time slot, making for a very flexible configuration.
Table 9. Multi-LED Mode Control Registers
SLOTx[2:0] Setting
000
001
010
011
100
101
110
WHICH LED IS ACTIVE
None (time slot is disabled)
LED1 (Red)
LED2 (IR)
None
None
LED1 (Red)
LED2 (IR)
LED PULSE AMPLITUDE SETTING
N/A (Off)
LED1_PA[7:0]
LED2_PA[7:0]
N/A (Off)
N/A (Off)
PILOT_PA[7:0]
PILOT_PA[7:0]
Each slot generates a 3-byte output into the FIFO. One sample comprises all active slots, for example if SLOT1 and
SLOT2 are non-zero, then one sample is 2 x 3 = 6 bytes.
The slots should be enabled in order (i.e., SLOT1 should not be disabled if SLOT2 is enabled).
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