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TCS3400
Color Light-to-Digital Converter
General Description
The TCS3400 device provides color and IR (red, green, blue, clear
and IR) light sensing. The color sensing provides for improved
accuracy lux and color temperature measurements typically
used to adjust the backlight intensity and correct the display
color gamut. Additionally it can be used for light source type
detection as it reports the IR content of the light.
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits & Features
The benefits and features of TCS3400, Color Light-to-Digital
Converter are listed below:
Figure 1:
Added Value of Using TCS3400
Benefits
Features
• Single Device Integrated Optical Solution
• RGBC and ALS Support
• Power Management Features
• Color Temperature and Ambient Light Sensing
• Programmable Gain & Integration Time
• 1,000,000:1 Dynamic Range
• Equal Response to 360 degree Incident Light
• Circular Segmented RGBC Photodiode
• Ideal for Operation Behind Dark Glass
• Very High Sensitivity
• Light Source Detection
• RGBC + IR sensor
Applications
The TCS3400 applications include:
• Ambient light sensing
• Color temperature sensing
• Industrial process control
• Medical diagnostics
ams Datasheet
[v1-03] 2016-May-20
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TCS3400 − General Description
Block Diagram
The functional blocks of this device are shown below:
Figure 2:
TCS3400 Block Diagram
VDD
INT
Interrupt
IR passband
filter
UV & IR
stopband
filter
RGBC Control
Clear
Clear Data
Red ADC
Red Data
Green ADC
Green Data
Blue ADC
Blue Data
Lower Limit
Red
Green
Blue
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Clear ADC
Upper Limit
I²C Interface
SCL
SDA
ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Pin Assignment
The TCS3400 pin assignments are described below.
Pin Assignment
Figure 3:
Pin Diagram
Pin Diagram (Top View):
Package FN Dual Flat No-Lead.
Package Drawing is not to scale.
VDD 1
6 SDA
SCL 2
5 INT
GND 3
4 I/C
Figure 4:
Pin Description
Pin Number
Pin Name
1
VDD
Supply voltage
2
SCL
I²C serial clock input terminal
3
GND
Power supply ground. All voltages are referenced to GND.
4
I/C
Internal connection, connect to ground or leave floating.
5
INT
Interrupt — open drain output (active low)
6
SDA
I²C serial data I/O terminal – open drain
ams Datasheet
[v1-03] 2016-May-20
Description
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TCS3400 − Absolute Maximum Ratings
Absolute Maximum Ratings
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. These are stress
ratings only. Functional operation of the device at these or any
other conditions beyond those indicated under Recommended
Operating Conditions is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Figure 5:
Absolute Maximum Ratings
Parameter
Min
Max
Units
Comments
3.8
V
All voltages are with respect to GND
Supply voltage, VDD
Input terminal voltage
-0.5
3.8
V
Output terminal voltage
-0.5
3.8
V
Output terminal current (SDA, INT)
-1
20
mA
Storage temperature range, TSTRG
-40
85
ºC
Input current (latch up immunity)
JEDEC JESD78D Nov 2011
CLASS 1
Electrostatic discharge HBM S-001-2014
±2000
V
Electrostatic discharge CDM
JEDEC JESD22-C101F Oct 2013
±500
V
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ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Electrical Characteristics
All limits are guaranteed. The parameters with min and max
values are guaranteed with production tests or SQC (Statistical
Quality Control) methods.
Electrical Characteristics
Figure 6:
Recommended Operating Conditions
Symbol
VDD
TA
Parameter
Min
Typ
Max
Units
Supply voltage
2.7
3
3.6
V
Operating free-air temperature (1)
-40
70
°C
Note(s):
1. While the device is operational across the temperature range, functionality will vary with temperature. Specifications are stated at
25°C unless otherwise noted.
Figure 7:
Operating Characteristics, V DD=3V, TA=25ºC (unless otherwise noted)
Symbol
IDD
VOL
ILEAK
VIH
VIL
Parameter
Supply current
INT, SDA output low
voltage
Conditions
Typ
Max
Active
235
330
Wait state
60
Sleep state - no I²C activity
1.0
SCL, SDA input low
voltage
ams Datasheet
[v1-03] 2016-May-20
Units
μA
10
3 mA sink current
0
0.4
6 mA sink current
0
0.6
-5
5
V
Leakage current, SDA,
SCL, INT pins
SCL, SDA input high
voltage
Min
TCS34001, TCS34005
0.7 VDD
TCS34003, TCS34007
1.26
μA
V
TCS34001, TCS34005
0.3 VDD
TCS34003, TCS34007
0.54
V
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TCS3400 − Electrical Characteristics
Figure 8:
Optical Characteristics (Clear Channel), V DD = 3V, TA = 25°C, AGAIN = 16x, ATIME = 0xDC (100ms)
Parameter
Test Conditions
Min
Typ
Max
White LED, CCT = 2700K,
Ee = 45.6 μW/cm2 (1)
38.9
48.6
58.3
28.6
35.7
42.8
Blue LED, λD = 465 nm,
Re
Irradiance Responsivity
(Clear Channel)
Ee = 53.8 μW/cm2 (2)
Green LED, λD = 525 nm,
Ee = 43.9 μW/cm2 (3)
Red LED, λD = 615 nm,
Ee = 37.5 μW/cm2 (4)
Unit
counts/
(μW/cm2)
33.6
42.0
50.4
49.0
61.3
73.6
Note(s):
1. The white LED irradiance is supplied by a warm white light-emitting diode with a nominal color temperature of 2700K.
2. The 465 nm input irradiance is supplied by an InGaN light-emitting diode with the following typical characteristics: dominant
wavelength λ D = 465 nm, spectral halfwidth Δλ½ = 22 nm.
3. The 525 nm input irradiance is supplied by an InGaN light-emitting diode with the following typical characteristics: dominant
wavelength λ D = 525 nm, spectral halfwidth Δλ½ = 35 nm.
4. The 615 nm input irradiance is supplied by an AlInGaP light-emitting diode with the following typical characteristics: dominant
wavelength λ D = 615 nm, spectral halfwidth Δλ½ = 15 nm.
Figure 9:
Optical Characteristics (IR Channel), VDD = 3V, TA = 25°C, AGAIN = 16x, ATIME = 0xF6
Parameter
Test Condition
Min
Typ
Max
Unit
Re
Irradiance Responsivity
(IR Channel)
λP = 850 nm(1)
9.0
11.2
13.5
counts/
(μW/cm2)
Note(s):
1. The 850 nm input irradiance is supplied by an AlGaAs light-emitting diode with the following characteristics: peak wavelength
λ P = 850 nm, spectral halfwidth Δλ1/2 = 42 nm.
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ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Electrical Characteristics
Figure 10:
Optical Characteristics, V DD=3V, TA=25ºC
Parameter
Color ADC
count value
ratio:
Color / Clear
Test Conditions
Red /
Clear
Channel
Green /
Clear
Channel
Blue /
Clear
Channel
IR /
Clear
Channel
Min
Max
Min
Max
Min
Max
λD = 465 nm (1)
0%
13%
10%
38%
70%
91%
λD = 525 nm (2)
3%
22%
59%
86%
10%
40%
λD = 615 nm (3)
80%
110%
0%
15%
3%
26%
λP = 850 nm (4)
Min
Max
0%
5%
667%
Note(s):
1. The 465 nm input irradiance is supplied by an InGaN light-emitting diode with the following characteristics: dominant wavelength
λ D = 465 nm, spectral halfwidth Δλ½ = 22 nm.
2. The 525 nm input irradiance is supplied by an InGaN light-emitting diode with the following characteristics: dominant wavelength
λ D = 525 nm, spectral halfwidth Δλ½ = 35 nm.
3. The 615 nm input irradiance is supplied by a AlInGaP light-emitting diode with the following characteristics: dominant wavelength
λ D = 615 nm, spectral halfwidth Δλ½ = 15 nm.
4. The 850 nm input irradiance is supplied by an AlGaAs light-emitting diode with the following characteristics: peak wavelength
λ P = 850 nm, spectral halfwidth Δλ1/2 = 42 nm.
ams Datasheet
[v1-03] 2016-May-20
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TCS3400 − Electrical Characteristics
Figure 11:
RGBC Characteristics, VDD = 3V, TA = 25ºC, AGAIN = 16x, AEN = 1 (unless otherwise noted)
Parameter
Conditions
Min
Typ
Max
Units
0
1
4
counts
2
counts (1)
6
counts
4
counts (1)
2.93
ms
1
256
steps
ATIME = 0xFF (2.78ms) to 0xC1
(175ms) (1 to 63 steps)
0
1024
counts/
step
ATIME = 0xC0 (178ms) to 0x00
(712ms) (64 to 256 steps)
0
65535
counts
Dark ADC count value
(Clear and RGB Channels)
Ee = 0, AGAIN = 64x,
ATIME = 0xB8 (200ms)
Dark ADC count value
(IR Channel)
0
0
1
0
Integration time step size
2.65
Number of integration steps
2.78
ADC count value
Gain scaling, relative to 16×
gain setting
1x: AGAIN = 00
0.936
0.985
1.065
4x: AGAIN = 01
3.66
3.85
4.16
×
16x: AGAIN = 10
64x: AGAIN = 11
16.0
59.6
62.7
67.8
Note(s):
1. Based on typical 3-sigma distribution. Not 100% tested.
Figure 12:
Wait Characteristics, VDD = 3V, TA = 25ºC, WEN = 1 (unless otherwise noted)
Parameter
Conditions
Wait step size
WTIME = 0xFF
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Min
Typ
2.78
Max
Units
ms
ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Timing Characteristics
The timing characteristics of TCS3400 are given below.
Timing Characteristics
Figure 13:
AC Electrical Characteristics, VDD = 3V, TA = 25°C (unless otherwise noted)
Parameter(1)
Conditions
Min
Max
Unit
0
400
kHz
fSCL
Clock frequency (I²C only)
tBUF
Bus free time between start and stop condition
1.3
μs
Hold time after (repeated) start condition.
After this period, the first clock is generated.
0.6
μs
tSU;STA
Repeated start condition setup time
0.6
μs
tSU;STO
Stop condition setup time
0.6
μs
tHD;DAT
Data hold time
60
ns
tSU;DAT
Data setup time
100
ns
tLOW
SCL clock low period
1.3
μs
tHIGH
SCL clock high period
0.6
μs
tHD;STA
tF
Clock/data fall time
300
ns
tR
Clock/data rise time
300
ns
Ci
Input pin capacitance
10
pF
Note(s):
1. Specified by design and characterization; not production tested.
Timing Diagram
Figure 14:
Parameter Measurement Information
tHIGH
tR
tLOW
tF
VIH
SCL
VIL
tHD; STA
tSU; DAT
tHD; DAT
tSU; STA
tSU; STO
tBUF
SDA
VIH
VIL
STOP
ams Datasheet
[v1-03] 2016-May-20
START
START
STOP
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TCS3400 − Typical Operating Characteristics
Typical Operating
Characteristics
Figure 15:
Spectral Responsivity
100%
Clear
Normalized Responsivity
90%
Red
Green
80%
Blue
70%
IR Channel
60%
50%
40%
30%
20%
10%
0%
300
400
500
600
700
800
900
1000
1100
Wavelength (nm)
Normalized Responsivity
Figure 16:
Normalized Responsivity vs. Angular Displacement
Θ - Angular Displacement - °
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ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Typical Operating Characteristics
Figure 17:
Responsivity Temperature Coefficient
ams Datasheet
[v1-03] 2016-May-20
Wavelength
Temperature Coefficient
400 – 670nm
250 ppm/°C
850nm
2500 ppm/°C
950nm
5500 ppm/°C
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TCS3400 − Functional Description
Functional Description
The TCS3400 device provides ambient light sensing and color
temperature sensing. The internal state machine manages the
operation of the device. It controls the ALS functionality and
power down modes. Average power consumption is managed
via control of variable endurance low power wait cycles.
The interrupt feature improves system efficiency by eliminating
the need to poll the sensor. Two interrupt sources (ALS, ALS
saturation) can activate the open drain output pin. Each
interrupt source is enabled independently. ALS interrupts
appear when upper or lower thresholds are exceeded for a
consecutive number of sample readings.
The advanced digital color light sensor portion of the TCS3400
contains a segmented circular photodiode array used for color
measurements. This architecture provides stable color sensing
independent of the incident angle of light. Four integrating
analog-to-digital converters (ADCs) integrate light energy from
photodiodes simultaneously.
Figure 18:
Simplified ALS State Machine
Communication with the device is
accomplished through a fast (up to 400
kHz) two wire I²C serial bus for easy
connection to a microcontroller or
embedded controller. The device
typically draws only 235μA in color
operation and 1uA during power down.
Sleep
PON = 1
(0x80:b0)
PON = 0
(0x80:b0)
Start
RGBC
Wait
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ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Register Description
The device is controlled and monitored by registers accessed
through the I²C serial interface. These registers provide for a
variety of control functions and can be read to determine results
of the ADC conversions. The register set is summarized in the
figure below.
Register Description
Figure 19:
Register Map
Address
Register
Name
R/W
0x80
ENABLE
R/W
Enables states and
interrupts
0x00
0x81
ATIME
R/W
RGBC integration time
0xFF
0x83
WTIME
R/W
Wait time
0xFF
0x84
AILTL
R/W
Clear interrupt low
threshold low byte
0x00
0x85
AILTH
R/W
Clear interrupt low
threshold high byte
0x00
0x86
AIHTL
R/W
Clear interrupt high
threshold low byte
0x00
0x87
AIHTH
R/W
Clear interrupt high
threshold high byte
0x00
0x8C
PERS
R/W
Interrupt persistence filter
0x00
0x8D
CONFIG
R/W
Configuration
0x40
0x8F
CONTROL
R/W
Gain control register
0x00
0x90
AUX
R/W
Auxiliary control register
0x00
0x91
REVID
R
Revision ID
Rev
0x92
ID
R
Device ID
0x93
STATUS
R
Device status
0x00
0x94
CDATAL
R
Clear / IR channel low
data register
0x00
0x95
CDATAH
R
Clear / IR channel high
data register
0x00
0x96
RDATAL
R
Red ADC low data register
0x00
0x97
RDATAH
R
Red ADC high data
register
0x00
0x98
GDATAL
R
Green ADC low data
register
0x00
ams Datasheet
[v1-03] 2016-May-20
Register Function
Reset Value
ID
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TCS3400 − Register Description
Address
Register
Name
R/W
0x99
GDATAH
R
Green ADC high data
register
0x00
0x9A
BDATAL
R
Blue ADC low data
register
0x00
0x9B
BDATAH
R
Blue ADC high data
register
0x00
0xC0
IR
R/W
Access IR Channel
0x00
0xE4
IFORCE
W
Force Interrupt
0x00
0xE6
CICLEAR
W
Clear channel interrupt
clear
0x00
0xE7
AICLEAR
W
Clear all interrupts
0x00
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Register Function
Reset Value
ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Register Description
Enable Register (ENABLE 0 x 80)
The Enable Register is used primarily to power the device
ON/OFF, and enable functions and interrupts.
Figure 20:
Enable Register
7
6
5
4
3
2
1
0
Reserved
SAI
Reserved
AIEN
WEN
Reserved
AEN
PON
Field
Bits
Reserved
7
Reserved. Write as 0.
SAI
6
Sleep After Interrupt. When asserted, the device will power down at the end
of a RGBC cycle if an interrupt is generated.
Reserved
5
Reserved. Write as 0.
AIEN
4
ALS Interrupt Enable. When asserted permits ALS interrupts to be generated,
subject to the persist filter.
WEN
3
Wait Enable. This bit activates the wait feature. Writing a 1 activates the wait
timer. Writing a 0 disables the wait timer.
Reserved
2
Reserved. Write as 0.
AEN
1
ADC Enable. This bit activates the four-channel (RGBC) ADC. Writing a 1
enables the ADC. Writing a 0 disables the ADC.
0
Power ON. This bit activates the internal oscillator to permit the timers and
ADC channels to operate. Writing a 1 activates the oscillator. Writing a 0
disables the oscillator and puts the part into a low power sleep mode. During
reads and writes over the I²C interface, this bit is temporarily overridden and
the oscillator is enabled, independent of the state of PON.
PON
ams Datasheet
[v1-03] 2016-May-20
Description
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TCS3400 − Register Description
RGBC Integration Time Register (ATIME 0x81)
The ATIME register controls the internal integration time of the
RGBC channel ADCs. Upon power up, the RGBC time register is
set to 0xFF.
The maximum (or saturation) count value can be calculated
based upon the integration time cycles as follows:
min [CYCLES * 1024, 65535]
Figure 21:
RGBC Integration Time Register
Description
Field
ATIME
Bits
7:0
Value
Cycles
Time
Max Count
0xFF
1
2.78 ms
1024
0xF6
10
27.8 ms
10240
0xDB
37
103 ms
37888
0xC0
64
178 ms
65535
0x00
256
712 ms
65535
Wait Time Register (WTIME 0x83)
The WTIME controls the amount of time in a low power mode.
It is set 2.78 ms increments unless the WLONG bit is asserted in
which case the wait times are 12× longer. WTIME is
programmed as a 2’s complement number. Upon power up, the
wait time register is set to 0xFF.
Figure 22:
Wait Time Register
Description
Field
WTIME
Bits
7:0
Register Value
Wait Time
Time
(WLONG=0)
Time
(WLONG=1)
0xFF
1
2.78 ms
0.03 s
0xAB
85
236 ms
2.84 s
0x00
256
712 ms
8.54 s
Note(s):
1. The wait time register should be configured before AEN is asserted.
Page 16
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ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Register Description
Clear Channel Interrupt Threshold Register
(0x84 - 0x87)
The Clear Channel Interrupt Threshold Registers provide 16 bit
values to be used as the high and low thresholds for comparison
to the 16 bit CDATA values. If AIEN (0x80:b4) is enabled and
CDATA is not between AILT and AIHT for the number of
consecutive samples specified in APERS (0x8C:b[3:0]) an
interrupt is asserted on the interrupt pin.
Figure 23:
Clear Channel Interrupt Threshold Registers
Register
Address
Bits
Description
AILTL
0x84
7:0
Clear Channel low threshold lower byte
AILTH
0x85
7:0
Clear Channel low threshold upper byte
AIHTL
0x86
7:0
Clear Channel high threshold lower byte
AIHTH
0x87
7:0
Clear Channel high threshold upper byte
ams Datasheet
[v1-03] 2016-May-20
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TCS3400 − Register Description
Interrupt Register (0x8C)
The Interrupt Register controls the interrupt capabilities of the
device.
Figure 24:
Interrupt Register
7
6
5
4
3
2
Reserved
Field
Bits
Reserved
7:4
1
0
APERS
Description
Reserved. Write as 0.
Clear Interrupt Persistence. Controls rate of Clear channel interrupt to the host
processor.
Field Value
APERS
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3:0
Persistence
0000
Every RGBC cycle generates an interrupt
0001
Any value outside of threshold range
0010
2 consecutive values out of range
0011
3 consecutive values out of range
0100
5 consecutive values out of range
0101
10 consecutive values out of range
0110
15 consecutive values out of range
0111
20 consecutive values out of range
1000
25 consecutive values out of range
1001
30 consecutive values out of range
1010
35 consecutive values out of range
1011
40 consecutive values out of range
1100
45 consecutive values out of range
1101
50 consecutive values out of range
1110
55 consecutive values out of range
1111
60 consecutive values out of range
ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Register Description
Configuration Register (CONFIG 0x8D)
The CONFIG register sets the wait long time. The registers is set
0x40 at power up.
Figure 25:
Configuration Register
7
6
Reserved
Reserved1
5
4
3
2
Reserved
1
0
WLONG
Reserved
Field
Bits
Description
Reserved
7
Reserved. Write as 0.
Reserved (1)
6
Reserved. Write as 1.
Reserved
5:2
WLONG
1
Wait Long. When asserted, the wait cycles are increased by a factor 12×
from that programmed in the WTIME register.
Reserved
0
Reserved. Write as 0.
Reserved. Write all as 0.
Note(s):
1. Bit 6 is reserved and has to be programmed = 1.
Control Register (CONTROL 0x8F)
Figure 26:
Control Register
7
6
5
4
3
2
1
Reserved
Field
Bits
Reserved
7:2
0
AGAIN
Description
Reserved. Write all as 0.
RGBC Gain Control.
AGAIN
ams Datasheet
[v1-03] 2016-May-20
FIELD VALUE
RGBC GAIN VALUE
00
1X Gain
01
4X Gain
10
16X Gain
11
64X Gain
1:0
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TCS3400 − Register Description
Auxiliary Register (AUX 0x90)
The AUX register enables the ALS saturation detection
interrupt. If ASIEN = 1 and an interrupt occurs it is cleared by
accessing the Clear Interrupt registers at 0XE6 or 0XE7.
Figure 27:
Auxiliary Register
7
6
Reserved
5
4
3
ASIEN
Field
Bits
Reserved
7:6
ASIEN
5
Reserved
4:0
2
1
0
Reserved
Description
Reserved. Write all as 0.
0 disables, 1 enables ALS Saturation Interrupt
Reserved.
Revision ID Register (REVID 0x91)
This read-only register identifies the die revision level.
Figure 28:
Revision ID Register
7
6
5
4
3
Reserved
1
0
RevID
Field
Bits
Reserved
7:4
Reserved.
RevID
3:0
Wafer die revision level
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2
Description
ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Register Description
ID Register (ID 0x92)
The read-only ID register provides the device identification.
Figure 29:
ID Register
7
6
5
4
3
2
1
ID
0
VID
Field
Bits
Description
ID
7:2
Device Identification = 100100
VID
1:0
00b for TCS34001 & TCS34005
11b for TCS34003 & TCS34007
Status Register (STATUS 0x93)
The read-only Status Register provides the internal status of the
device.
Figure 30:
Status Register
7
6
ASAT
Field
5
Reserved
4
AINT
3
2
Reserved
1
0
AVALID
Bits
Description
ASAT
7
ALS Saturation. When asserted, the analog sensor was at the upper
end of its dynamic range. The bit can be de-asserted by sending a clear
channel interrupt command (0xE6 CICLEAR) or by disabling the ALS
ADC (AEN=0). ATIME and AGAIN are controls that can be adjusted to set
when saturation happens. This bit triggers an interrupt if ASIEN in AUX
is set.
Reserved
6:5
AINT
4
Reserved
3:1
AVALID
0
ams Datasheet
[v1-03] 2016-May-20
Reserved.
ALS Interrupt. If AEN is set, indicates that an ALS event that met the
programmed ALS thresholds (AILT or AIHT) and persistence (APERS)
occurred.
Reserved.
RGBC Valid. Indicates that the RGBC cycle has completed since AEN
was asserted.
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TCS3400 − Register Description
RGBC Data Registers (0x94 - 0x9B)
Clear, red, green, and blue data is stored as 16-bit values. The
read sequence must read byte pairs (low followed by high)
starting on an even address boundary (0x94, 0x96, 0x98, or
0x9A) inside the RGBC Data Register block. When the lower byte
register is read, the upper eight bits are stored into a shadow
register, which is read by a subsequent read to the upper byte.
The upper register will read the correct value even if additional
ADC integration cycles end between the reading of the lower
and upper registers.
Figure 31:
RGBC Data Registers
Register
Address
Bits
Description
CDATAL
0x94
7:0
Clear / IR data low byte
CDATAH
0x95
7:0
Clear / IR data high byte
RDATAL
0x96
7:0
Red data low byte
RDATAH
0x97
7:0
Red data high byte
GDATAL
0x98
7:0
Green data low byte
GDATAH
0x99
7:0
Green data high byte
BDATAL
0x9A
7:0
Blue data low byte
BDATAH
0x9B
7:0
Blue data high byte
Page 22
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ams Datasheet
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TCS3400 − Register Description
IR Register (0xC0)
Access to IR channel; allows mapping of IR channel on clear
channel.
Figure 32:
IR Register
7
6
5
4
3
IR
2
1
0
Reserved
Field
Bits
IR
7
Reserved
6:0
Description
IR Sensor access. If this bit is set the clear channel reports the
measurement from the IR sensor (center diode).
Reserved. Always write as 0.
Clear Interrupt Registers (0xE3, 0xE7)
Any dummy data byte (0x00 recommended) written to the
specified register will clear the indicated interrupt.
Figure 33:
Clear Interrupt Registers
Register
Address
Bits
IFORCE
0xE4
7:0
Forces an interrupt (any value)
CICLEAR
0xE6
7:0
Clear channel interrupt clear (any value)
AICLEAR
0xE7
7:0
Clears all interrupts (any value)
ams Datasheet
[v1-03] 2016-May-20
Description
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TCS3400 − Power Supply Considerations
Power Supply Considerations
Place a 1-μF low-ESR decoupling capacitor as close as possible
to the V DD pin.
Figure 34:
Typical Application Hardware Circuit
V BUS
Voltage
Regulator
V DD
Cap sized
per
regulator
specs
RP
RP
R PI
1 µF
GND
TCS3400
INT
SCL
I/C
SDA
V BUS in the above figures refers to the I²C bus voltage which is
either VDD or 1.8 V. Be sure to apply the specified I²C bus voltage
shown in the Ordering & Contact Information for the specific
device being used.
The I²C signals and the Interrupt are open-drain outputs and
require pull−up resistors. The pull-up resistor (RP) value is a
function of the I²C bus speed, the I²C bus voltage, and the
capacitive load. The ams EVM running at 400 kbps, uses 1.5-kΩ
resistors. A 10-kΩ pull-up resistor (RPI) can be used for the
interrupt line.
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ams Datasheet
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TCS3400 − PCB Pad Layout
PCB Pad Layout
Suggested PCB pad layout guidelines for the surface mount
module are shown. Flash Gold is recommended as a surface
finish for the landing pads.
Figure 35:
Suggested PCB Layout
PCB Layout: Suggested land pattern
based on the IPC-7351B Generic
Requirements for Surface Mount Design
and Land Pattern Standard (2010) for the
small outline no-lead (SON) package.
;
;
3,1
;
;
;
;)8//5
Note(s):
1. All linear dimensions are in millimeters.
2. This drawing is subject to change without notice.
ams Datasheet
[v1-03] 2016-May-20
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TCS3400 − Package Drawings & Markings
Package Drawings & Markings
Figure 36:
IC Package Mechanical Drawing
7239,(:
“
9''
6'$
6&/
,17
*1'
,&
3KRWRGLRGH
$FWLYH$UHD
“
(1'9,(:
6,'(9,(:
1RPLQDO
;“
“
3KRWRGLRGH
$FWLYH$UHD
;“
;“
%277209,(:
&/ RI6ROGHU&RQWDFWVDQG3KRWRGLRGH$FWLYH$UHD
1RWH
1RPLQDO1RWH
&/ RI6ROGHU&RQWDFWV
&/ RI3KRWRGLRGH$FWLYH$UHD
3,1
RoHS
Green
;“
Note(s):
1. All linear dimensions are in micrometers. Dimension tolerance is ±20 μm unless otherwise noted.
2. The die is centered within the package within a tolerance of ±75 μm.
3. Package top surface is molded with an electrically non-conductive clear plastic compound having an index of refraction of 1.55.
4. Contact finish is Copper Alloy A194 with pre-plated NiPdAu lead finish.
5. This package contains no lead (Pb).
6. This drawing is subject to change without notice.
Page 26
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ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Package Mechanical Data
Package Mechanical Data
Figure 37:
Carrier Tape & Reel Information
“
%
“
%
“
$
ƒ0$;
$
ƒ0$;
“
“
$R
“
.R
6(&7,21$$
“
%R
6(&7,21%%
527$7(' &:
Note(s):
1. All linear dimensions are in millimeters. Dimension tolerance is ± 0.10 mm unless otherwise noted.
2. The dimensions on this drawing are for illustrative purposes only. Dimensions of an actual carrier may vary slightly.
3. Symbols on drawing Ao, Bo, and Ko are defined in ANSI EIA Standard 481−B 2001.
4. Each reel is 330 millimeters in diameter.
5. Packaging tape and reel conform to the requirements of EIA Standard 481−B.
6. In accordance with EIA standard, device pin 1 is located next to the sprocket holes in the tape.
7. This drawing is subject to change without notice.
8. The device pin 1 is located in the upper left corner inside the T&R pockets.
ams Datasheet
[v1-03] 2016-May-20
Page 27
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TCS3400 − Soldering & Storage Information
Soldering & Storage
Information
The FN package has been tested and has demonstrated an
ability to be reflow soldered to a PCB substrate.
The solder reflow profile describes the expected maximum heat
exposure of components during the solder reflow process of
product on a PCB. Temperature is measured on top of
component. The components should be limited to a maximum
of three passes through this solder reflow profile.
Figure 38:
Solder Reflow Profile
Parameter
Reference
Device
Average temperature gradient in preheating
2.5 ºC/s
tsoak
2 to 3 minutes
Time above 217 ºC (T1)
t1
Max 60 s
Time above 230 ºC (T2)
t2
Max 50 s
Time above Tpeak - 10 ºC (T3)
t3
Max 10 s
Peak temperature in reflow
Tpeak
260 ºC
Soak time
Temperature gradient in cooling
Max -5 ºC/s
Figure 39:
Solder Reflow Profile Graph
NottoScale
Tpeak
T3
T2
Temperaturein°C
T1
Timeinseconds
t3
t2
Page 28
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ams Datasheet
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TCS3400 − Soldering & Storage Information
Moisture Sensitivity
Optical characteristics of the device can be adversely affected
during the soldering process by the release and vaporization of
moisture that has been previously absorbed into the package.
To ensure the package contains the smallest amount of
absorbed moisture possible, each device is baked prior to being
dry packed for shipping.
Devices are dry packed in a sealed aluminized envelope called
a moisture-barrier bag with silica gel to protect them from
ambient moisture during shipping, handling, and storage
before use.
Shelf Life
The calculated shelf life of the device in an unopened moisture
barrier bag is 12 months from the date code on the bag when
stored under the following conditions:
• Shelf Life: 12 months
• Ambient Temperature: < 40°C
• Relative Humidity: < 90%
Rebaking of the devices will be required if the devices exceed
the 12 month shelf life or the Humidity Indicator Card shows
that the devices were exposed to conditions beyond the
allowable moisture region.
Floor Life
The FN package has been assigned a moisture sensitivity level
of MSL 3. As a result, the floor life of devices removed from the
moisture barrier bag is 168 hours from the time the bag was
opened, provided that the devices are stored under the
following conditions:
• Floor Life: 168 hours
• Ambient Temperature: < 30°C
• Relative Humidity: < 60%
If the floor life or the temperature/humidity conditions have
been exceeded, the devices must be rebaked prior to solder
reflow or dry packing.
Rebaking Instructions
When the shelf life or floor life limits have been exceeded,
rebake at 50°C for 12 hours.
ams Datasheet
[v1-03] 2016-May-20
Page 29
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TCS3400 − Ordering & Contact Information
Ordering & Contact Information
The device is packaged in a small OFN (Optical FN) package
which is 2mm x 2.4mm.
Figure 40:
Ordering Information
Ordering Code
Address
Interface
Delivery
Form
Delivery
Quantity
TCS34001FN (1)
0x39
I²C VBUS = VDD Interface
FN-6
12000 pcs/reel
TCS34001FNM (1)
0x39
I²C VBUS = VDD Interface
FN-6
500 pcs/reel
TCS34003FN
0x39
I²C bus = 1.8V Interface
FN-6
12000 pcs/reel
TCS34003FNM
0x39
I²C bus = 1.8V Interface
FN-6
500 pcs/reel
TCS34005FN (1)
0x29
I²C VBUS = VDD Interface
FN-6
12000 pcs/reel
TCS34005FNM (1)
0x29
I²C VBUS = VDD Interface
FN-6
500 pcs/reel
TCS34007FN
0x29
I²C bus = 1.8V Interface
FN-6
12000 pcs/reel
TCS34007FNM
0x29
I²C bus = 1.8V Interface
FN-6
500 pcs/reel
Note(s):
1. Contact ams for availability.
Buy our products or get free samples online at:
www.ams.com/ICdirect
Technical Support is available at:
www.ams.com/Technical-Support
Provide feedback about this document at:
www.ams.com/Document-Feedback
For further information and requests, e-mail us at:
[email protected]
For sales offices, distributors and representatives, please visit:
www.ams.com/contact
Headquarters
ams AG
Tobelbaderstrasse 30
8141 Premstaetten
Austria, Europe
Tel: +43 (0) 3136 500 0
Website: www.ams.com
Page 30
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ams Datasheet
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TCS3400 − RoHS Compliant & ams Green Statement
RoHS Compliant & ams Green
Statement
RoHS: The term RoHS compliant means that ams AG products
fully comply with current RoHS directives. Our semiconductor
products do not contain any chemicals for all 6 substance
categories, including the requirement that lead not exceed
0.1% by weight in homogeneous materials. Where designed to
be soldered at high temperatures, RoHS compliant products are
suitable for use in specified lead-free processes.
ams Green (RoHS compliant and no Sb/Br): ams Green
defines that in addition to RoHS compliance, our products are
free of Bromine (Br) and Antimony (Sb) based flame retardants
(Br or Sb do not exceed 0.1% by weight in homogeneous
material).
Important Information: The information provided in this
statement represents ams AG knowledge and belief as of the
date that it is provided. ams AG bases its knowledge and belief
on information provided by third parties, and makes no
representation or warranty as to the accuracy of such
information. Efforts are underway to better integrate
information from third parties. ams AG has taken and continues
to take reasonable steps to provide representative and accurate
information but may not have conducted destructive testing or
chemical analysis on incoming materials and chemicals. ams AG
and ams AG suppliers consider certain information to be
proprietary, and thus CAS numbers and other limited
information may not be available for release.
ams Datasheet
[v1-03] 2016-May-20
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TCS3400 − Copyrights & Disclaimer
Copyrights & Disclaimer
Copyright ams AG, Tobelbader Strasse 30, 8141 Premstaetten,
Austria-Europe. Trademarks Registered. All rights reserved. The
material herein may not be reproduced, adapted, merged,
translated, stored, or used without the prior written consent of
the copyright owner.
Devices sold by ams AG are covered by the warranty and patent
indemnification provisions appearing in its General Terms of
Trade. ams AG makes no warranty, express, statutory, implied,
or by description regarding the information set forth herein.
ams AG reserves the right to change specifications and prices
at any time and without notice. Therefore, prior to designing
this product into a system, it is necessary to check with ams AG
for current information. This product is intended for use in
commercial applications. Applications requiring extended
temperature range, unusual environmental requirements, or
high reliability applications, such as military, medical
life-support or life-sustaining equipment are specifically not
recommended without additional processing by ams AG for
each application. This product is provided by ams AG “AS IS”
and any express or implied warranties, including, but not
limited to the implied warranties of merchantability and fitness
for a particular purpose are disclaimed.
ams AG shall not be liable to recipient or any third party for any
damages, including but not limited to personal injury, property
damage, loss of profits, loss of use, interruption of business or
indirect, special, incidental or consequential damages, of any
kind, in connection with or arising out of the furnishing,
performance or use of the technical data herein. No obligation
or liability to recipient or any third party shall arise or flow out
of ams AG rendering of technical or other services.
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ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Document Status
Document Status
Document Status
Product Preview
Preliminary Datasheet
Datasheet
Datasheet (discontinued)
ams Datasheet
[v1-03] 2016-May-20
Product Status
Definition
Pre-Development
Information in this datasheet is based on product ideas in
the planning phase of development. All specifications are
design goals without any warranty and are subject to
change without notice
Pre-Production
Information in this datasheet is based on products in the
design, validation or qualification phase of development.
The performance and parameters shown in this document
are preliminary without any warranty and are subject to
change without notice
Production
Information in this datasheet is based on products in
ramp-up to full production or full production which
conform to specifications in accordance with the terms of
ams AG standard warranty as given in the General Terms of
Trade
Discontinued
Information in this datasheet is based on products which
conform to specifications in accordance with the terms of
ams AG standard warranty as given in the General Terms of
Trade, but these products have been superseded and
should not be used for new designs
Page 33
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TCS3400 − Revision Information
Revision Information
Changes from 1-02 (2016-May-09) to current revision 1-03 (2016-May-20)
Updated Figure 40
Page
30
Note(s):
1. Page and figure numbers for the previous version may differ from page and figure numbers in the current revision.
2. Correction of typographical errors is not explicitly mentioned.
Page 34
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ams Datasheet
[v1-03] 2016-May-20
TCS3400 − Content Guide
Content Guide
ams Datasheet
[v1-03] 2016-May-20
1
1
1
2
General Description
Key Benefits & Features
Applications
Block Diagram
3
4
5
Pin Assignment
Absolute Maximum Ratings
Electrical Characteristics
9
9
Timing Characteristics
Timing Diagram
10
12
Typical Operating Characteristics
Functional Description
13
15
16
16
17
18
19
19
20
20
21
21
22
23
23
Register Description
Enable Register (ENABLE 0 x 80)
RGBC Integration Time Register (ATIME 0x81)
Wait Time Register (WTIME 0x83)
Clear Channel Interrupt Threshold Register (0x84 - 0x87)
Interrupt Register (0x8C)
Configuration Register (CONFIG 0x8D)
Control Register (CONTROL 0x8F)
Auxiliary Register (AUX 0x90)
Revision ID Register (REVID 0x91)
ID Register (ID 0x92)
Status Register (STATUS 0x93)
RGBC Data Registers (0x94 - 0x9B)
IR Register (0xC0)
Clear Interrupt Registers (0xE3, 0xE7)
24
25
26
27
Power Supply Considerations
PCB Pad Layout
Package Drawings & Markings
Package Mechanical Data
28
29
29
29
29
Soldering & Storage Information
Moisture Sensitivity
Shelf Life
Floor Life
Rebaking Instructions
30
31
32
33
34
Ordering & Contact Information
RoHS Compliant & ams Green Statement
Copyrights & Disclaimer
Document Status
Revision Information
Page 35
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