PDF TSL3301 Data sheet ( Hoja de datos )

Número de pieza	TSL3301
Descripción	102 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOGTODIGITAL CONVERTER
Fabricantes	ETC
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No Preview Available ! 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 DIGITAL I/O AND CONTROL 8 DB<7:0> 5 ADDR<4:0> OUTPUT CHARGE-TO- VREF READ WRITE 3 SECTOR VOLTAGE CONVERTER WITH PROGRAMMABLE GAINS AND OFFSETS IREF BIAS BLOCK RESET/SAMPLE START ADCLK DUAL 8–BIT SA ADC VREF IREF www.taosinc.com Texas Advant ced Optoelectronic Solutions Inc. 800 Jupiter Road, Suite 205 S Plano, TX 75074 S (972) 673-0759 t Copyright E 2001, TAOS Inc. 1 1 page TSL3301 102 × 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOGĆTOĆDIGITAL CONVERTER TAOS026 – FEBRUARY 2001 Command description The TSL3301 is a slave device that reacts strictly to commands received from the digital controller. These commands cause the device to perform functions such as reset, integrate, sample, etc. Table 3 summarizes the command types and formats and Table 4 lists the command set for the TSL3301. Each command is described in more detail below. Table 3. Command Type and Format Summary COMMAND TYPE Action command Register write < Command byte > < Command byte > < Data byte > FORMAT Table 4. TSL3301 Command Set COMMAND IRESET RESET DETReset STARTInt SAMPLEInt READPixel ABORTPixel READHold READHoldNStart REGWrite REGRead DESCRIPTION Interface Reset Reset Integration and read blocks Reset determine unique address block Start pixel integration Stop light integration and sample results Dump serial the contents of each sampled integrator Abort any READPixel operation in progress Combination of SAMPLEInt and READPixel commands Combination of SAMPLEInt, READPixel and STARTInt commands Write a gain, offset, or mode register Read a gain, offset, or mode register www.taosinc.com t Copyright E 2001, TAOS Inc. t 5 5 Page TSL3301 102 × 1 LINEAR OPTICAL SENSOR ARRAY WITH ANALOGĆTOĆDIGITAL CONVERTER TAOS026 – FEBRUARY 2001 SCLK SDIN tw(CLKH) th tsu tw(CLKL) VIH VIL VIH VIL Figure 2. TSL3301 Input Timing Requirements SCLK td VIH VIL SDOUT VOH VOL Figure 3. TSL3301 Output Switching Characteristics SCLK SDIN Start B0 B1 B2 B3 B4 B5 B6 B7 Stop Serial Input Data Format SCLK SDOUT Start B0 B1 B2 B3 B4 B5 B6 B7 Stop Serial Output Data Format Figure 4. TSL3301 Serial I/O www.taosinc.com t Copyright E 2001, TAOS Inc. t 11 11 Page

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