TSL1406R, TSL1406RS
768 ?1 LINEAR SENSOR ARRAY WITH HOLD
TAOS042D APRIL 2007
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The LUMENOLOGY r Company
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r
Copyright E 2007, TAOS Inc.
www.taosinc.com
D  768 ?/SPAN> 1 Sensor-Element Organization
D   400 Dot-Per-Inch (DPI) Sensor Pitch
D   High Linearity and Uniformity
D   Wide Dynamic Range . . . 4000:1 (72 dB)
D   Output Referenced to Ground
D   Low Image Lag . . . 0.5% Typ
D   Operation to 8 MHz
D   Single 3-V to 5-V Supply
D   Rail-to-Rail Output Swing (AO)
D   No External Load Resistor Required
D   Replacement for TSL1406
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 糾 by 55.5 糾, with 63.5-糾 center-to-center spacing and 8-糾 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
V
DD
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)
V
PP
SI1
HOLD1
CLK1
GND
AO1
SO1
SI2
HOLD2
CLK2
SO2
AO2
V
DD
1
2
3
4
5
6
7
8
9
10
11
12
13