Features

0.55 -inch microscope array diagonal line

—1024 × 768 aluminum array, micron size mirror (XGA resolution)

-10.8-μm Microscopy spacing

-± 12 ° microscopy tilt angle (relative to the plane state)

-In design for corner lighting

Design; Design Used for broadband visible light (420 nm – 700 nm):

- 97%of the window transmission (single pass, through the surface of two windows)

- Microscope reflectance 88%[123 ]

- The array diffraction efficiency is 86%

- The array fill coefficient 92%

16 bits, low -voltage differential signal (LVDS) dual data rate (DDR) input data bus input data bus

200 mHz input data clock frequency

450 series packaging features:

- Hot area 18.0 mm x 12.0 mm, which can achieve high screens to achieve high screens Lishu ( gt; 2000 LM)

-149 Micro -needle grid arrays strong electrical connection

Application

3D machine vision

three -dimensional optical measurement

Industrial and medical imaging

Medical equipment

Digital exposure system

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Instructions

DLP5500 Digital microscopy device (DMD) is a digital control Moems (microcravio electromechanical system) spatial light conditioner ( SLM). When coupled to an appropriate optical system, the DLP5500 can be used to modify the amplitude, direction and/or phase of the lighting (lighting) light.

From the perspective of architecture, DLP5500 is a lock -available, electrical input/light output semiconductor device. This structure makes DLP5500 very suitable for structural lighting, 3D optical measurement, industrial and medical imaging, microscope and spectrometer. DLP5500 compact physical size enables it to integrate into portable devices.

DLP5500 is one of the three components in the DLP 0.55 XGA chipset (see Figure 1). The correct function and operation of the DLP5500 require it to use it with other components of the chipset. DLPC200 (TI Literature Number DLPS014) and DLPA200 (TI Literature Number DLPS015) control and coordinate data loading and microscope switching to ensure reliable operation.For more details, please refer to the DLP 0.55 XGA chipset data table (TI literature number DLPZ004). DLPR200F is a DLPC200 firmware code, which is used to support video and structured lighting applications. To find the latest version of DLPR200F, transfer to the website and search the keyword DLPR200 . In terms of electrical, the DLP5500 consisting of a two -dimensional array consisting of 1 -bit CMOS storage unit, consisting of 768 storage units composed of 1024 storage units. The CMOS memory array is written through the 16 -bit low -voltage differential signal (LVDS) dual data rate (DDR) bus. The address is processed by serial control. The specific CMOS memory access protocol is handled by DLPC200 digital controller.

Optical, DLP5500 consists , Consisting of 1024 microscope columns and 768 microscopes (Figure 3). The size of each aluminum microscope is about 10.8 microns (refer to the microscope spacing in Figure 3), and can be switched between the two discrete angle positions: –12 ° and+12 °. The angle position is measured relative to the 0 ° flat state of parallel to the array plane (see Figure 4). The tilt direction is perpendicular to the hinge shaft. The hinge shaft is positioned with diagonal lines compared to the overall array. direction ). In the field of visual display, the resolution of 1024 × 768 pixels is called XGA .

Each separate microscope is located on the corresponding CMOS storage unit. The angle position of a specific microscope is determined by the binary state (logic 0 or 1) of the corresponding CMOS storage unit content. Switching Logic 1 to the storage unit will cause the corresponding microscope to+12 °. Switching logic 0 to the storage unit will cause the corresponding microscope to-12 °.

The surrounding 1024 × 768 microscope array is a unified boundary microscope zone. Border microscope cannot be addressing by users. Once the device is powered on, the border microscope will land at -12 °. There are 10 boundary microscopes on each side of 1024x768.

The angle position (-12 ° or+12 °) of a single microscope changes with the microscope clock pulse (instead of updating the data update with the CMOS storage unit data). Microscope Clock Pulse is called a mirror residence. The application of the mirror resignation signal causes the angle location of each microscope to be locked by electromechanical to the contents of the content of the corresponding CMOS storage unit. The microscope Clock Pulse is input to DLP5500 through the 16 reset signals provided by the DLPA200 DMD simulation reset drive.

Operation, update the microscopeThe angle position of the array includes the content of the CMOS memory first, and then reset all or part of the application mirror image (depending on the configuration of the system). The reflex compound pulse is generated by DLPA200, and the pulse application is coordinated by the DLPC200 controller.

Related files

The following documents include additional information about the use of DLP5500 device:

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You can order part number

The device is marked with the field shown in Figure 5.

Thermal characteristics

In order to obtain the best DMD performance, the highest temperature of the DMD, the highest temperature of any single microscope in the source array, and the source of the source array, the highest temperature, the maximum temperature of any single microscope in the source array,, the highest temperature, the maximum temperature of any microscope, The maximum temperature of the window aperture and the temperature gradient between the shell temperature and the predicted microscope array temperature are appropriately managed. (See Figure 13).

For the applicable temperature limit, please refer to the recommended working conditions.

Packaging thermal resistance

DMD design is used to transmit heat from absorbing and heat dissipation to the back of the 450 series packaging, where it can be removed by appropriate heat dissipation tablets. The radiator and cooling system must be able to maintain the unit within the specified working temperature range. See Figure 13. The total thermal load on DMD is usually driven by incident light absorbed by the source area; although other contributions include the light energy and the electrical power of the formation of the window hole absorption.

Shell temperature

The temperature of the DMD shell can be measured directly. For consistency, the heat test pilot location TC1 and TC2 are defined, as shown in Figure 13.

Microscope array temperature calculation

Microscope array temperature cannot be measured directly, so it must be measured from the measurement point (Figure 13), packaging thermal resistance, electrical power, and electrical power and electricity. Lighting heat load for analysis and calculation. The relationship between the temperature between the microscope array and the shell temperature is provided by the following formula:

The following elements are defined as:

Tarray u003d calculated microscope array line Temperature (° C)

Tceramic u003d ceramic temperature (° C) (TC2 position Figure 13) Qarray u003d DMD array total power (electric+absorption) (unit: tile)

Rarray to ceeramic u003d DMD packaging from array to TC2 thermal resistance (° C/WATT) (see package thermal resistance resistance) QELE u003d nominal electric power (Wat)

Qill u003d A absorbed lighting energy (Wat)

Below provides an example calculation based on the traditional DLP video projection system.DMD's electrical loss is variable, depending on voltage, data rate and operating frequency.The nominal power consumption used in the calculation is 2.0 watts.Therefore, qele u003d 2.0 watt.The power absorbed from the lighting source is variable, depending on the working status of the reflector and the strength of the light source.According to the modeling and measurement data of the DLP projection system, QILL u003d CL2W SL. 2000) u003d 7.76 watts, the estimated total power of the microscope array

tceramic u003d 55.0 ° C, assuming the system measurement value

Finally, the tarray (active array temperature of the microscope) is the tarray (active array temperature) is).:

For more instructions on DMD machinery and thermal computing and precautions, please refer to the concept of DLP Series-450 DMD and system installation (TI Literature Number DLPA015).