Data Sheet

Page 48 ams Datasheet
Document Feedback [v1-04] 2018-Jul-09
AS7265x − Application Information
Figure 60:
Typical AS7265x 18-Channel Application Circuit
Note(s):
1. For each AS7265x device, orientation of the device aperture to any light source(s) will determine spectral content to be measured.
For example with the proper orientation, sensors on the AS72651 can be used to measure light from the LEDs on the AS72652 and/or
AS76253.
2. The AS72651 is required while the AS72652 and AS72653 are both optional for a total solution of 6, 12 or 18 channels.
Application Information
GND
CSN_EE
SPI_MISO
SPI_SCK
SPI_MOSI
RESN
3V3
Programming header
for FLASH
GND
4
HOLD
7
WP
3
VCC
8
DO
2
CLK
6
DI
5
CS
1
U6
AT25SF041
C9
1u0
GND
3V3
GND
SPI_MOSI
SPI_MISO
SPI_SCK
COMM_TX
COMM_RX
--->
<---
SPI_MOSI
SPI_MISO
SPI_SCK
CSN_EE
CSN_EE
R10
10k
C7
100nF
C8
1u0
C10
100nF
C12
100nF
C11
1u0
C13
1u0
GND
GND
GND
GND
GND
GND
1
2
3
4
J3
SQT4RATHF
GND
SDA
SDA
SLV1_RESN
SLV2_RESN
SCL
SCL
3V3
3V3
R15
2k2
R16
2k2
SDA
SDA
SCL
SCL
3V3
D6 D7 D8
GND
R17
10k
3V3
INT
SLV1_RESN
R11
200R
+5V
TP9RESN
TP10
INT
TP11
SLV2_RESN
TP12
SLV1_RESN
TP13
SD
A
TP14
SCL
R18
0R
GND
D9
LED
D12
LED
D13
LED
R23
200R
R19
200R
+5V
+5V
D11
GRN
RESN
FH34S-8S-0.5SH(50)
1
2
3
4
5
6
10 9
7
8
J2
SLV2_RESN
AS72652
LED_IND
18
VDD1
17
GND
16
LED_DRV
15
NC
1
NC
20
NC
19
VDD2
14
NC
3
NC
6
RESN
2
INT
13
NC
4
NC
7
SDA_S
10
NC
11
NC
5
NC
8
NC
12
SCL_S
9
U4
AS72652
AS72653
LED_IND
18
VDD1
17
GND
16
LED_DRV
15
NC
1
NC
20
NC
19
VDD2
14
NC
3
NC
6
RESN
2
INT
13
NC
4
NC
7
SDA_S
10
NC
11
NC
5
NC
8
NC
12
SCL_S
9
U5
AS72653
AS72651
LED_IND
18
VDD1
17
GND
16
LED_DRV
15
SLV1_RESN
1
SLV2_RESN
20
NC
19
VDD2
14
SCK
3
CSN
6
RESN
2
INT
13
MOSI
4
NC
7
SDA_M
10
RX/SCL_S
11
MISO
5
I2C_ENB
8
TX/SDA_S
12
SCL_M
9
U3
AS72651
3V3
3V3
3V3
R13
10k
R14
10k
I2C_ENA
FLASH
SPI_MOSISPI_SCK
SPI_MISO
CSN_EE
GND
1 2
3 4
5 6
J4
TC2030-NL
VDD_PROG
GND
7427927161
L1
600R/250mA
Alternative programming
header for FLASH (NEW)
Sensorinterface
ESP Board
Q1
DTC113ZUA
GND
RESN
C17
100nF
LED_651
LED_652
LED_IND
LED_653
R18 placed - UART (default)
R18 not placed - I²C
NOTE