TSL1406R, TSL1406RS

768 × 1 LINEAR SENSOR ARRAY WITH HOLD

TAOS042D − APRIL 2007

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The LUMENOLOGY r Company

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Copyright E 2007, TAOS Inc.

www.taosinc.com

Description

The TSL1406R is a 400 dots-per-inch (DPI) linear

sensor array consisting of two 384-pixel sections,

each with its own output. The sections are aligned

to form a contiguous 768 × 1 pixel array. The

device incorporates a pixel data-hold function that

provides simultaneous integration-start and

integration-stop times for all pixels.

Pixels measure 63.5 μm by 55.5 μm, with 63.5-μm center-to-center spacing and 8-μm spacing between pixels.

Operation is simplified by internal logic that requires only a serial-input (SI) pulse and a clock.

The device operates from a single 5-V power source. The two sections of 384 pixels each can be read out

separately or can be cascaded to provide a single output for all 768 pixels (see Figure 9).

The TSL1406RS is the same device mounted in a shorter package. These devices are intended for use in a

wide variety of applications including mark and code reading, OCR and contact imaging, edge detection and

positioning, and optical encoding.

Functional Block Diagram (each section)

2, 8

4, 10

SI

CLK

384-Bit Shift Register (2 each)

Q384 (Q768)

Switch Control Logic

Q3

Q2

Q1

Hold

SO

7, 11

3, 9

Hold

Output

Buffer

Gain

Trim

AO

GND

5

13

6, 12

Integrator

Reset

_

+

Pixel 1

(385)

Pixel

2

(386)

Pixel

384

(768)

Pixel

3

(387)

Sample/Hold/

Output

Analog

Bus

S1

S2

2

1

3

1

2

r

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Texas Advanced Optoelectronic Solutions Inc.

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

TSL1406R

(TOP VIEW)

SI1

HOLD1

CLK1

GND

AO1

SO1

SI2

HOLD2

CLK2

SO2

AO2

1

2

3

4

5

6

7

8

9

10

11

12

13