TSL3301

t TSL3301 102 × 1 LINEAR OPTICAL SENSOR ARRAY t WITH ANALOGĆTOĆDIGITAL CONVERTER TAOS026 – FEBRUARY 2001 D 102 × 1 Sensor Element Organization D 300 Dots-per-Inch Pixel Pitch D High Sensitivity D On-Chip 8-Bit Analog-to-Digital Conversion D Three-Zone Programmable Offset (Dark Level) and Gain D High Speed Serial Interface D 1 MHz Pixel Rate D Single 3-V to 5.5-V Supply (TOP VIEW) SCLK VDD SDIN SDOUT 1 2 3 4 8 NC 7 GND 6 GND 5 NC NC – 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 µm (H) by 77 µm (W) and spaced on 85 µm 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–H (51-bit shift register) PIXCLK SI HOLD ZERO LEFT EVEN RIGHT ODD RIGHT EVEN IREF SCLK SDIN SDOUT DIG...