TCS3414CS TAOS, TCS3414CS Datasheet

Photodiodes TriColor Sensor RGB, Clear Ch

TCS3414CS

Manufacturer Part Number
TCS3414CS
Description
Photodiodes TriColor Sensor RGB, Clear Ch
Manufacturer
TAOS
Type
Digital Color Light Sensorr
Datasheet

Specifications of TCS3414CS

Peak Wavelength
470 nm
Maximum Rise Time
300 ns
Maximum Fall Time
300 ns
Package / Case
Chipscale-6
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Product
Ambient Light Sensor
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

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Part Number:
TCS3414CS
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Quantity:
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r
Description
The LUMENOLOGY r Company
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The TCS3404 and TCS3414 digital color light sensors are designed to accurately derive the color chromaticity
and illuminance (intensity) of ambient light and provide a digital output with 16-bits of resolution. The devices
include an 8
monolithic CMOS integrated circuit. Of the 16 photodiodes, 4 have red filters, 4 have green filters, 4 have blue
filters, and 4 have no filter. With the advanced patent pending in-package trim capability, device-to-device and
system-to-system tolerance can be minimized allowing very precise repeatability to be attained.
A synchronization input (SYNC) provides precise external control of sensor integration allowing the internal
conversion cycles to be synchronized to a pulsed light source. Furthermore, the synchronization feature
supports the following advanced modes of operation to maximize flexibility across a broad range of hardware
systems: (1) sync for one internal-time cycle, and (2) accumulate for specified number of pulses. The device
also supports free-running and serial-bus-controlled integration modes if precise integration between the
sensor and light source is not required.
Four parallel analog-to-digital converters (ADC) transform the photodiode currents to an SMBus (TCS3404) or
I
single read cycle to minimize the number of read command protocols defined in the communication interface.
The slave address for this device is 39h (0111001b). A single SMB-Alert style interrupt (TCS3404) as well as
a single traditional level-style interrupt (TCS3414) can be dynamically configured for any one of the four
channels including a corresponding high/low threshold setting. The interrupt will remain asserted until the
firmware clears the interrupt.
2
Programmable Interrupt Function with
User-Defined Upper and Lower Threshold
Settings
Internal Filter Eliminates Signal Fluctuation
Due to AC Lighting Flicker — No External
Capacitor Required
In-Package Trim Provides an Easy and
Accurate Means to Achieve
System-to-System Repeatability
16-Bit Digital Output with SMBus (TCS3404)
at 100 kHz or I
Programmable Analog Gain and Integration
Time Supporting 1,000,000-to-1 Dynamic
Range
SYNC Input Synchronizes Integration Cycle
to Modulated Light Sources (e.g. PWM)
Operating Temperature Range of −405C to
855C
Operating voltage of 2.7 V to 3.6 V
Industry’s Smallest Digital RGB Color
Sensor
C (TCS3414) digital output that, in turn, can be input to a microprocessor. The RGB values can be read in a
×
2 array of filtered photodiodes, analog-to-digital converters, and control functions on a single
2
C (TCS3414) at 400 kHz
Features
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
r
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www.taosinc.com
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Provides Method to Derive Chromaticity
Coordinates to Manage Display
Backlighting (i.e. RGB LED, CCFL, etc.)
Provides Means to Derive Color
Temperature to White-Color Balance
Displays Under Various Lighting
Conditions
DIGITAL COLOR LIGHT SENSORS
r
SDA
SCL
B1
6-LEAD CHIPSCALE
A1
Applications
PACKAGE CS
(TOP VIEW)
TCS3404CS, TCS3414CS
SYNC
VDD
A2
B2
GND
A3
INT
TAOS068 − FEBRUARY 2009
B3
Copyright E 2009, TAOS Inc.
1

Related parts for TCS3414CS

TCS3414CS Summary of contents

Page 1

... Provides Method to Derive Chromaticity Coordinates to Manage Display Backlighting (i.e. RGB LED, CCFL, etc.) D Provides Means to Derive Color Temperature to White-Color Balance Displays Under Various Lighting Conditions r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 PACKAGE CS 6-LEAD CHIPSCALE (TOP VIEW) SCL SYNC GND A1 A2 ...

Page 2

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 The TCS3404/14 devices can help (1) automatically adjust the display brightness of a backlight to extend battery, increase lamp life, and provide optimum viewing in diverse lighting conditions, (2) white-color balance display panel and/or captured images in diverse lighting conditions, and (3) manage RGB LED backlighting to maintain color consistency over a long period of time ...

Page 3

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 ORDERING NUMBER ...

Page 4

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 Electrical Characteristics 255C (unless otherwise noted) A PARAMETER I I Supply current @ V Supply current @ V = 3 INT, SDA output low voltage OL I Input leakage current (SDA, SCL, SYNC) LEAK AC Electrical Characteristics, V † PARAMETER ...

Page 5

... T Prescale, where Fosc(min) is the minimum oscillator frequency in Hz, and tint is the actual integration 65535/5000 = 13.1 ms. int r www.taosinc.com TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 Blue Channel Clear Channel TYP MAX MIN TYP MAX 90% 65 ...

Page 6

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 PARAMETER MEASUREMENT INFORMATION t (LOW SCL (HDSTA (BUF) (HDDAT SDA Stop Start Condition Condition SCL SDA 1 SCL SDA Start by Master Frame 1 SMBus Slave Address Byte Figure 3. Example Timing Diagram for SMBus Send Byte Format ...

Page 7

... V 900 850 800 3.0 V 750 700 650 600 0 75 100 r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 vs. FREE-AIR TEMPERATURE Integration Externally Timed Integration 100 − Free-Air Temperature − ° Figure 6 I OFF DD vs. FREE-AIR TEMPERATURE 3 ...

Page 8

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 NORMALIZED RESPONSIVITY vs. ANGULAR DISPLACEMENT 1 0.8 0.6 0.4 0 −90 −60 − − Angular Displacement − ° Figure 9 Copyright E 2009, TAOS Inc. 8 TYPICAL CHARACTERISTICS 1 0.8 0.6 0.4 0 −90 −60 r www.taosinc.com NORMALIZED RESPONSIVITY vs. ...

Page 9

... The LUMENOLOGY r Company DIGITAL COLOR LIGHT SENSORS PRINCIPLES OF OPERATION 2 C bus Fast-Mode. Table 1. Slave Address SMB ALERT ADDRESS 0111001 0001100 2 C protocols on the following pages. A read/write bit should r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 Copyright E 2009, TAOS Inc ...

Page 10

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 2 SMBus and I C Protocols Each Send and Write protocol is, essentially, a series of bytes. A byte sent to the TCS3404/14 with the most significant bit (MSB) equal to 1 will be interpreted as a COMMAND byte. The lower four bits of the COMMAND byte form the register select address (see Table 1), which is used to select the destination for the subsequent byte(s) received ...

Page 11

... Data Byte Figure 12. SMBus Send Byte Protocol Data Byte Figure 13. SMBus Receive Byte Protocol Command Code A Figure 14. SMBus Write Byte Protocol Slave Address Figure 15. SMBus Read Byte Protocol r www.taosinc.com TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 Data Byte ...

Page 12

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 Slave Address Slave Address Wr A Command Code Slave Address Wr A Command Code Figure 18. SMBus Block Write NOTE: The I C write protocol does not use the Byte Count packet, and the Master will continue sending Data Bytes until the Master initiates a Stop condition ...

Page 13

... Low byte of ADC red channel High byte of ADC red channel Low byte of ADC blue channel High byte of ADC blue channel Low byte of ADC clear channel High byte of ADC clear channel r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 Copyright E 2009, TAOS Inc ...

Page 14

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 Command Register The command register specifies the address of the target register for subsequent read and write operations. This register contains eight bits as described in Table 3 and defaults to 00h at power on CMD TRANSACTION Reset Value: ...

Page 15

... During writes and reads, the POWER bit is overridden and the oscillator is enabled, independent of the state of POWER. The LUMENOLOGY r Company DIGITAL COLOR LIGHT SENSORS Table 4. Control Register Resv ADC_VALID Resv Resv DESCRIPTION r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 1 0 CONTROL ADC_EN POWER 0 0 Copyright E 2009, TAOS Inc ...

Page 16

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 Timing Register (01h) The TIMING register controls the synchronization and integration time of the ADC channels. The Timing Register settings apply to all four ADC channels. The Timing Register defaults to 00h at power on. ...

Page 17

... SMB-Alert compliant. 11 Sets an interrupt and functions as mode 10. TIMER 000 Every 001 Single 010 0.1 sec 011 1 sec r www.taosinc.com TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 INTERRUPT PERSIST DESCRIPTION Every ADC cycle generates interrupt Any value outside of threshold range. ...

Page 18

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 Interrupt Source Register (03h) The Interrupt Source register selects which ADC channel value to use to generate an interrupt. Only one of the four ADC channels can be selected 03h Resv Resv Reset Value FIELD BITS ...

Page 19

... Divide by 8. 100 Divide by 16. 101 Divide by 32. 110 Divide by 64. 111 Not used. r www.taosinc.com TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 × × × increments. The × before analog × does not prevent digital saturation from × ...

Page 20

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 Interrupt Threshold Register (08h − 0Bh) The interrupt threshold registers store the values to be used as the high and low trigger points for the comparison function for interrupt generation. The high and low bytes from each set of registers are combined to form a 16-bit threshold value ...

Page 21

... DIGITAL COLOR LIGHT SENSORS //Power Up and Enable ADC //Set Command bit and Word transaction //Set Command bit and Word transaction //Set Command bit and Word transaction //Set Command bit and Word transaction r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 Copyright E 2009, TAOS Inc ...

Page 22

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 // Read ADC Channels Using Read Byte Protocol Address = 0x39 Command = 0x90 ReadByte (Address, Command, DataLow) Command = 0x91 ReadByte (Address, Command, DataHigh) Channel1 = 256 * DataHigh + DataLow Command = 0x92 ReadByte (Address, Command, DataLow) ...

Page 23

... DIGITAL COLOR LIGHT SENSORS //Timing Register //Timing Register //Timing Register //Gain Control Register //Disable ADC_EN //Set manual integration //Enable ADC_EN and begin integration //Wait for 50ms //Disable ADC_EN and stop integration r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 Copyright E 2009, TAOS Inc ...

Page 24

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 APPLICATION INFORMATION: SOFTWARE Synchronization There are two basic modes of operation for controlling synchronization: (1) internally timed, and (2) externally timed. Internally-timed integration cycles can either be continuous back-to-back conversions or can be externally triggered as a single event using the SYNC pin. Externally-timed integrations can be controlled by setting and clearing the ADC Enable in the Control Register using the serial interface one or more pulses input to the SYNC pin ...

Page 25

... Set PARAM for desired integration cycle (12ms, 100ms, or 400ms) 3. Set INTEG_MODE to 10b 4. Disable SYNC and clear INTR 5. Read channel data The LUMENOLOGY r Company Integration Period Time duration determined by PARAM field (nominal integration time www.taosinc.com TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 B Copyright E 2009, TAOS Inc ...

Page 26

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 APPLICATION INFORMATION: SOFTWARE When the INTEG_MODE field value is set to 11b, the device integrates from the rising edge of the first pulse until the rising or falling edge of a subsequent pulse as specified by the SYNC_EDGE and PARAM field values. ...

Page 27

... Set PARAM for desired SYNC PULSE COUNT 4. Set INTEG_MODE to 11b 5. Input N+1 external SYNC pulses 6. Disable SYNC and read channels The LUMENOLOGY r Company Integration Period A B Integration Period www.taosinc.com TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 B Copyright E 2009, TAOS Inc ...

Page 28

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 APPLICATION INFORMATION: SOFTWARE SYNC IN INTERRUPT NOTE: ADC_EN must be toggled (i.e. from high to low and back to high again) before next integration cycle Figure 25. Integrate Over Two Pulses (SYNC_EDGE 0b, INTEG_MODE 11b, PARAM Xb) Falling Edge 1 ...

Page 29

... Command bit and address Timing Register //Sync one 100ms integration period //Slave addr − also 0x29 or 0x49 //Set Command bit and address Timing Register //Integrate one SYNC IN pulse r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 Copyright E 2009, TAOS Inc ...

Page 30

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 APPLICATION INFORMATION: SOFTWARE Interrupts The interrupt feature of the TCS3404/14 device simplifies and improves system efficiency by eliminating the need to poll the sensor for a light intensity value. Interrupt mode is determined by the INTR field in the Interrupt Control Register ...

Page 31

... Word Bit //Address upper threshold register, set Word bit //Address interrupt register //SMBAlert style, Persist 2.5 seconds //Slave address alternately 0x29 or 0x49 //Address Interrupt Control Register //Test interrupt r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 Copyright E 2009, TAOS Inc ...

Page 32

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 APPLICATION INFORMATION: HARDWARE Power Supply Decoupling and Application Hardware Circuit The power supply lines must be decoupled with a 0.1 μF capacitor placed as close to the device package as possible (Figure 26). The bypass capacitor should have low effective series resistance (ESR) and low effective series inductance (ESI), such as the common ceramic types, which provide a low impedance path to ground at high frequencies to handle transient currents caused by internal logic switching ...

Page 33

... Suggested PCB pad layout guidelines for the CS package are shown in Figure 27 0.30 6 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. Figure 27. Suggested CS Package PCB Layout The LUMENOLOGY r Company DIGITAL COLOR LIGHT SENSORS 0.61 0.61 r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 0.95 Copyright E 2009, TAOS Inc ...

Page 34

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 The TCS3404 and TCS3414 devices have a 2 PACKAGE CS TOP VIEW 1565 155 742 350 END VIEW 2095 685 + 160 BOTTOM VIEW 463 + 30 950 438 + 30 610 NOTES: C. All linear dimensions are in micrometers. Dimension tolerance is ± 25 μm unless otherwise noted. ...

Page 35

... Figure 29. TCS3404/TCS3414 Package CS Carrier Tape The LUMENOLOGY r Company DIGITAL COLOR LIGHT SENSORS MECHANICAL DATA 2.00 + 0.05 4. 1. and K are defined in ANSI EIA Standard 481−B 2001 www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 1.75 j 1.50 B 3.50 + 0.05 B DETAIL B 55 Max 2. Copyright E 2009, TAOS Inc ...

Page 36

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 The Chipscale package (CS) has been tested and has demonstrated an ability to be reflow soldered to a PCB substrate. The process, equipment, and materials used in these test are detailed below. The solder reflow profile describes the expected maximum heat exposure of components during the solder reflow process of product on a PCB ...

Page 37

... UNAUTHORIZED AND ANY SUCH USE BY A CUSTOMER IS COMPLETELY AT THE CUSTOMER’S RISK. LUMENOLOGY, TAOS, the TAOS logo, and Texas Advanced Optoelectronic Solutions are registered trademarks of Texas Advanced Optoelectronic Solutions Incorporated. The LUMENOLOGY r Company DIGITAL COLOR LIGHT SENSORS NOTICE r www.taosinc.com TCS3404CS, TCS3414CS TAOS068 − FEBRUARY 2009 Copyright E 2009, TAOS Inc ...

Page 38

... TCS3404CS, TCS3414CS DIGITAL COLOR LIGHT SENSORS TAOS068 − FEBRUARY 2009 Copyright E 2009, TAOS Inc www.taosinc.com The LUMENOLOGY r Company r ...

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