TSL2301 Datasheet, PDF (1/12 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – 102 X 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOGTODIGITAL CONVERTER

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TSL2301
102 × 1 LINEAR OPTICAL SENSOR ARRAY
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WITH ANALOGĆTOĆDIGITAL CONVERTER
TAOS007 – JULY 2000
D 102 × 1 Sensor Element Organization
D 300 Dots-per-Inch Pixel Pitch
D On-Chip 8-Bit Analog-to-Digital Converter
D Three-Zone Programmable Offset (Dark Level) and Gain
D High Speed (10 MHz) Clocked Serial Interface
D 1-MHz Pixel Rate
D Single 5-V Supply
(TOP VIEW)
SCLK 1
VDD 2
SDIN 3
SDOUT 4
8 NC
7 GND
6 GND
5 NC
NC – No internal connection
Description
The TSL2301 is a 300-dpi, 102-pixel linear optical sensor array with an integrated 8-bit analog-to-digital
converter. The pixels are on 85-µm centers and measure 85 µm (H) by 77 µm (W) with 8 µm between pixels.
Associated with each pixel is a charge integrator/amplifier and sample-hold circuit. All pixels have concurrent
integration periods and sampling times. Data communication is accomplished through a three-wire serial
interface. The array is split into three 34-pixel zones, with each zone having programmable gain and offset
levels.
The TSL2301 is intended for use in high-performance, cost-critical imaging and optical sensing applications.
Functional Block Diagram
PIXEL ARRAY WITH INTEGRATORS AND S-H
PIXCLK SI HOLD ZERO
LEFT EVEN RIGHT ODD
RIGHT EVEN IREF
SCLK
SDIN
SDOUT
DIGITAL I/O
AND
CONTROL
8
DB<7:0>
5 _ADDR<4:0>
VREF
READ
OUTPUT CHARGE-TO-
VOLTAGE CONVERTER
IREF
WRITE
WITH PROGRAMMABLE
3
SECTOR
GAINS AND OFFSETS
BIAS
BLOCK
RESET/SAMPLE
START
ADCLK
DUAL 8-BIT
SA ADC
VREF
IREF
www.taosinc.com
Texas Advan^tced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205 S Plano, TX 75074 S [phone]
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Copyright E 2000, TAOS Inc.
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