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AS7341L 数据表(PDF) 21 Page - OSRAM GmbH

部件名 AS7341L
功能描述  10-Channel Spectral Sensor Frontend
PDF  65 Pages
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制造商  OSRAM [OSRAM GmbH]
网页  http://www.osram.com
标志 OSRAM - OSRAM GmbH

AS7341L 数据表(HTML) 21 Page - OSRAM GmbH

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AS7341L
Functional Description
Datasheet
• PUBLIC
DS000718
• v1-00 • 2020-May-25
64
│ 20
8.4
SMUX
The device integrates a multiplexer (SMUX). With the SMUX, it is possible to map all available photo
diodes to one of the six available light-to-frequency converter (ADC0 to ADC5). After power up of the
device the SMUX needs to be configured before a spectral measurement is started. ams provides
reference codes and an application note on how to configure the SMUX.
8.5
Integration Mode
The device features three modes to perform a spectral measurement. The integration mode
(INT_MODE) can be configured in register 0x70 (CONFIG). For auto zero configuration refer to
Figure 48 register 0xD6.
Figure 22:
Integration Mode Description
Mode
Description
Synchronization
Integration Time
Registers
SPM (spectral
measurement,
no sync)
INT_MODE = 0x0
Default setting:
Integration is started with bit SP_EN
= “1”. Integration Time is set by
register ATIME and ASTEP.
No
ATIME [7:0]
ASTEP [15:0]
SP_EN
= “1”
INT_MODE = 0x0
ATIME [7:0]
ASTEP [15:0]
WTIME [7:0]
SYNS (spectral
measurement,
start sync)
INT_MODE = 0x1
Integration with external start:
Integration is started with
rising/falling edge on pin GPIO.
Integration Time is set by register
ATIME and ASTEP.
Yes (start)
ATIME [7:0]
ASTEP [15:0]
SP_EN
= “1”
INT_MODE = 0x1
ATIME [7:0]
ASTEP [15:0]
WTIME [7:0]
SYND (spectral
measurement,
start/stop sync)
INT_MODE = 0x3
Integration with external start and
stop:
Integration is controlled via
rising/falling edge on pin GPIO and
register EDGE. If the number of
edges on pin GPIO is reached,
integration time is stopped. Actual
integration time can be read out in
register “ITIME”.
Yes (start/stop)
Rising/falling edge
on pin GPIO and
register EDGE[7:0]
SP_EN
= “1”
INT_MODE = 0x3
EDGE [7:0]
ITIME [23:0]



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