TSL230AR ETC1 [List of Unclassifed Manufacturers], TSL230AR Datasheet

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TSL230AR

Manufacturer Part Number
TSL230AR
Description
PROGRAMMABLE LIGHTTOFREQUENCY CONVERTERS
Manufacturer
ETC1 [List of Unclassifed Manufacturers]
Datasheet
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Description
Functional Block Diagram
The LUMENOLOGY r Company
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The TSL230R, TSL230AR, and TSL230BR programmable light-to-frequency converters combine a
configurable silicon photodiode and a current-to-frequency converter on single monolithic CMOS integrated
circuits. The output can be either a pulse train or a square wave (50% duty cycle) with frequency directly
proportional to light intensity. Device sensitivity is selectable in three ranges, providing two decades of
adjustment. The full-scale output frequency can be scaled by one of four preset values. All inputs and the output
are TTL compatible, allowing direct two-way communication with a microcontroller for programming and output
interface. An output enable (OE) is provided that places the output in the high-impedance state for multiple-unit
sharing of a microcontroller input line.
The devices are available with absolute-output-frequency tolerances of 5% (TSL230BR), 10% (TSL230AR),
or 20% (TSL230R). They have been temperature compensated for the ultraviolet-to-visible light range of
320 nm to 700 nm and respond over the light range of 320 nm to 1050 nm. The devices are characterized over
the temperature range of –25 C to 70 C.
High-Resolution Conversion of Light
Intensity to Frequency With No External
Components
Programmable Sensitivity and Full-Scale
Output Frequency
Communicates Directly With a Microcontroller
Single-Supply Operation Down to 2.7 V,
With Power-Down Feature
Absolute Output Frequency Tolerance of
Nonlinearity Error Typically 0.2% at 100 kHz
Stable 150 ppm/ C Temperature Coefficient
Replacements for TSL230, TSL230A, and
TSL230B
5% (TSL230BR)
Light
Texas Advanced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205 S Plano, TX 75074 S (972) 673-0759
Photodiode Array
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S0
S1
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www.taosinc.com
Current-to-Frequency
Converter
S2
S3
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GND
OE
S0
S1
Output
8-LEAD PDIP
PACKAGE P
(TOP VIEW)
OE
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8
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S3
S2
OUT
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Copyright E 2002, TAOS Inc.
TAOS048 – OCTOBER 2002
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TSL230AR Summary of contents

Page 1

... An output enable (OE) is provided that places the output in the high-impedance state for multiple-unit sharing of a microcontroller input line. The devices are available with absolute-output-frequency tolerances of 5% (TSL230BR), 10% (TSL230AR), or 20% (TSL230R). They have been temperature compensated for the ultraviolet-to-visible light range of 320 nm to 700 nm and respond over the light range of 320 nm to 1050 nm. The devices are characterized over the temperature range of – ...

Page 2

... www.taosinc.com f SCALING (divide-by 100 ORDERING NUMBER TSL230RP TSL230ARP TSL230BRP 6 V –0 0 – – 260 C MIN NOM MAX UNIT 2 ...

Page 3

... The LUMENOLOGY r Company = (unless otherwise noted) DD TEST CONDITIONS I = – Power-on mode Power-down mode 700 10 130 W/ TSL230R TSL230AR MIN TYP MAX MIN 80 100 120 0.8 1 1.2 0 ...

Page 4

TAOS048 – OCTOBER 2002 OUTPUT FREQUENCY vs IRRADIANCE 1000 640 nm p 100 0.1 0.01 S0 ...

Page 5

Power-supply considerations Power-supply lines must be decoupled by a 0.01 0.1- F capacitor with short leads placed close to the TSL230 device package. A low-noise power supply is required to ...

Page 6

TAOS048 – OCTOBER 2002 Output-frequency scaling Output-frequency scaling is controlled by two logic inputs, S2 and S3. Scaling is accomplished on chip by internally connecting the pulse-train output of the converter to a series of frequency dividers. Divided outputs available ...

Page 7

PACKAGE P This dual-in-line package consists of an integrated circuit mounted on a lead frame and encapsulated with an electrically nonconductive clear plastic compound. The photodiode area is typically 0. H). Pin 1 S0 Pin ...

Page 8

TAOS048 – OCTOBER 2002 PRODUCTION DATA — information in this document is current at publication date. Products conform to specifications in accordance with the terms of Texas Advanced Optoelectronic Solutions, Inc. standard warranty. Production processing does not necessarily include testing ...

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