Datasheet > TCS230_08

TCS230_08

更新时间： 2024-11-20 03:28:35

品牌	Logo	应用领域
TAOS		转换器
页数	文件大小	规格书
12页	171K
描述
PROGRAMMABLE COLOR LIGHT-TO-FREQUENCY CONVERTER

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TCS230_08 数据手册

TCS230

PROGRAMMABLE

COLOR LIGHT-TO-FREQUENCY CONVERTER

TAOS046Q − JULY 2008

PACKAGE D

8-LEAD SOIC

(TOP VIEW)

D High-Resolution Conversion of Light

Intensity to Frequency

D Programmable Color and Full-Scale Output

Frequency

S0 1

S1 2

8 S3

D Communicates Directly With a Microcontroller

D Single-Supply Operation (2.7 V to 5.5 V)

D Power Down Feature

7 S2

OE 3

6 OUT

5 V_DD

D Nonlinearity Error Typically 0.2% at 50 kHz

D Stable 200 ppm/°C Temperature Coefficient

GND 4

D Low-Profile Lead (Pb) Free and RoHS

Compliant Surface-Mount Package

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

Output

Current-to-Frequency

Photodiode

Light

Converter

Array

S2 S3

S0 S1

The LUMENOLOGY r Company

Texas Adva^rnced Optoelectronic Solutions Inc.

1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759

www.taosinc.com

12 3 4 5 6 7...12

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