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TSL3301
102
脳
1 LINEAR OPTICAL SENSOR ARRAY
WITH ANALOG TO DIGITAL CONVERTER
TAOS026 鈥?FEBRUARY 2001
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D
D
D
D
D
D
D
102
脳
1 Sensor Element Organization
300 Dots-per-Inch Pixel Pitch
High Sensitivity
On-Chip 8-Bit Analog-to-Digital Conversion
Three-Zone Programmable Offset (Dark Level) and Gain
High Speed Serial Interface
1 MHz Pixel Rate
Single 3-V to 5.5-V Supply
(TOP VIEW)
SCLK
VDD
SDIN
SDOUT
1
2
3
4
8
7
6
5
NC
GND
GND
NC
NC 鈥?No internal connection
Description
The TSL3301 is a high-sensitivity 300-dpi, linear optical sensor array with integrated 8-bit analog-to-digital
converters. The array consists of 102 pixels, each measuring 85
碌m
(H) by 77
碌m
(W) and spaced on 85
碌m
centers. Associated with each pixel is a charge integrator/amplifier and sample-hold circuit. All pixels have
concurrent integration periods and sampling times. The array is split into three 34-pixel zones, with each zone
having programmable gain and offset levels. Data communication is accomplished through a three-wire serial
interface.
Intended for use in high performance, cost-sensitive scanner applications, the TSL3301 is based on a linear
sensor array die that has expanded capability, including multi-die addressing and cascade options. Please
contact TAOS for additional information on die and multi-die package availability.
Functional Block Diagram
PIXEL ARRAY WITH INTEGRATORS AND S鈥揌
(51-bit shift register)
PIXCLK
SI
HOLD
ZERO
LEFT EVEN
RIGHT ODD
RIGHT EVEN
IREF
8
SCLK
5
SDIN
SDOUT
DIGITAL I/O
AND
CONTROL
3
DB<7:0>
ADDR<4:0>
READ
WRITE
SECTOR
BIAS
BLOCK
OUTPUT CHARGE-TO-
VOLTAGE CONVERTER
WITH PROGRAMMABLE
GAINS AND OFFSETS
VREF
IREF
RESET/SAMPLE
START
ADCLK
DUAL 8鈥揃IT
SA ADC
VREF
IREF
www.taosinc.com
Texas Advanced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205
S
Plano, TX 75074
S
(972) 673-0759
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Copyright
E
2001, TAOS Inc.
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