LIGHT-TO-FREQUENCY CONVERTER. TCS230 Datasheet

TCS230 CONVERTER. Datasheet pdf. Equivalent

TCS230 Datasheet
Recommendation TCS230 Datasheet
Part TCS230
Description COLOR LIGHT-TO-FREQUENCY CONVERTER
Feature TCS230; r TCS230 PROGRAMMABLE r COLOR LIGHT-TO-FREQUENCY CONVERTER TAOS046Q − JULY 2008 D High-Resolution C.
Manufacture TAOS
Datasheet
Download TCS230 Datasheet




TAOS TCS230
r TCS230
PROGRAMMABLE
r COLOR LIGHT-TO-FREQUENCY CONVERTER
TAOS046Q − JULY 2008
D High-Resolution Conversion of Light
Intensity to Frequency
D Programmable Color and Full-Scale Output
Frequency
D Communicates Directly With a Microcontroller
D Single-Supply Operation (2.7 V to 5.5 V)
D Power Down Feature
D Nonlinearity Error Typically 0.2% at 50 kHz
D Stable 200 ppm/°C Temperature Coefficient
D Low-Profile Lead (Pb) Free and RoHS
Compliant Surface-Mount Package
S0 1
S1 2
OE 3
GND 4
PACKAGE D
8-LEAD SOIC
(TOP VIEW)
8 S3
7 S2
6 OUT
5 VDD
Description
The TCS230 programmable color light-to-frequency converter combines configurable silicon photodiodes and
a current-to-frequency converter on a single monolithic CMOS integrated circuit. The output is a square wave
(50% duty cycle) with frequency directly proportional to light intensity (irradiance). The full-scale output
frequency can be scaled by one of three preset values via two control input pins. Digital inputs and digital output
allow direct interface to a microcontroller or other logic circuitry. Output enable (OE) places the output in the
high-impedance state for multiple-unit sharing of a microcontroller input line.
The light-to-frequency converter reads an 8 x 8 array of photodiodes. Sixteen photodiodes have blue filters, 16
photodiodes have green filters, 16 photodiodes have red filters, and 16 photodiodes are clear with no filters.
The four types (colors) of photodiodes are interdigitated to minimize the effect of non-uniformity of incident
irradiance. All 16 photodiodes of the same color are connected in parallel and which type of photodiode the
device uses during operation is pin-selectable. Photodiodes are 120 μm x 120 μm in size and are on 144-μm
centers.
Functional Block Diagram
Light
Photodiode
Array
Current-to-Frequency
Converter
Output
S2 S3
S0 S1
OE
The LUMENOLOGY r Company
r
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972r) 673-0759
www.taosinc.com
Copyright E 2008, TAOS Inc.
1



TAOS TCS230
TCS230
PROGRAMMABLE
COLOR LIGHT-TO-FREQUENCY CONVERTER
TAOS046Q − JULY 2008
Terminal Functions
TERMINAL
NAME
NO.
GND
4
OE 3
OUT
6
S0, S1
1, 2
S2, S3
7, 8
VDD
5
I/O DESCRIPTION
Power supply ground. All voltages are referenced to GND.
I Enable for fo (active low).
O Output frequency (fo).
I Output frequency scaling selection inputs.
I Photodiode type selection inputs.
Supply voltage
Table 1. Selectable Options
S0 S1 OUTPUT FREQUENCY SCALING (fo)
L L Power down
L H 2%
H L 20%
H H 100%
S2 S3 PHOTODIODE TYPE
L L Red
L H Blue
H L Clear (no filter)
H H Green
Available Options
DEVICE
TCS230
TA
−40°C to 85°C
PACKAGE − LEADS PACKAGE DESIGNATOR ORDERING NUMBER
SOIC−8
D TCS230D
Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V
Input voltage range, all inputs, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to VDD + 0.3 V
Operating free-air temperature range, TA (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 85°C
Storage temperature range (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 85°C
Solder conditions in accordance with JEDEC J−STD−020A, maximum temperature (see Note 3) . . . 260°C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
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-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values are with respect to GND.
2. Long-term storage or operation above 70°C could cause package yellowing that will lower the sensitivity to wavelengths < 500nm.
3. The device may be hand soldered provided that heat is applied only to the solder pad and no contact is made between the tip of
the solder iron and the device lead. The maximum time heat should be applied to the device is 5 seconds.
Recommended Operating Conditions
Supply voltage, VDD
High-level input voltage, VIH
Low-level input voltage, VIL
Operating free-air temperature range, TA
VDD = 2.7 V to 5.5 V
VDD = 2.7 V to 5.5 V
MIN NOM
2.7 5
2
0
−40
MAX
5.5
VDD
0.8
70
UNIT
V
V
V
°C
Copyright E 2008, TAOS Inc.
2
r
www.taosinc.com
The LUMENOLOGY r Company
r



TAOS TCS230
TCS230
PROGRAMMABLE
COLOR LIGHT-TO-FREQUENCY CONVERTER
TAOS046Q − JULY 2008
Electrical Characteristics at TA = 25°C, VDD = 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
VOH High-level output voltage
VOL Low-level output voltage
IIH High-level input current
IIL Low-level input current
IDD Supply current
IOH = − 4 mA
IOL = 4 mA
Power-on mode
Power-down mode
4
S0 = H, S1 = H
500
Full-scale frequency (See Note 4)
S0 = H, S1 = L
100
S0 = L, S1 = H
10
Temperature coefficient of responsivity
λ ≤ 600 nm, −25°C TA 70°C
kSVS Supply voltage sensitivity
VDD = 5 V ±10%
NOTE 4: Full-scale frequency is the maximum operating frequency of the device without saturation.
TYP
4.5
0.25
2
7
600
120
12
± 200
±0.5
MAX UNIT
V
0.40 V
5 μA
5 μA
3 mA
15 μA
kHz
kHz
kHz
ppm/°C
%/ V
The LUMENOLOGY r Company
r
www.taosinc.com
r
Copyright E 2008, TAOS Inc.
3







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)