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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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CSG14K_CSG8K 数据表(PDF) 47 Page - OSRAM GmbH |
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CSG14K_CSG8K 数据表(HTML) 47 Page - OSRAM GmbH |
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47 / 114 page  Document Feedback CSG14K_CSG8K Functional Description Datasheet • PUBLIC DS000571 • v2-01 • 2023-Feb-10 113 │ 46 ● If (1) > (2): ● The new EXPOSURE will start immediately. ● Because (1) is larger than (2), this EXPOSURE will end after the last frame would have finished. ● This causes a temporary drop in frame rate. The figure below shows the following cases (in all cases, the requested sequence is 2 frames long): Figure 48: Timing Diagram: Special Control Timing in Triggered Internal Mode (a) Normal timing → Capture 2 frames and go back to idle when done (c) TI_s1, (1) < (2) → New EXPOSURE delayed to guarantee programmed frame rate (b) TI_s0 → New request before last frame is active; extend sequence length to 4 (d) TI_s1, (1) > (2) → Temporary frame rate decrease to guarantee complete exposure time Programmed External vs Triggered Internal The attentive reader may have noticed that the Triggered Internal mode with a sequence length of 1 is quite similar to the Programmed External mode. This is mainly true, yet both differ in the way they handle new REQ_EXP requests if the sensor is not IDLE. Figure 49: Special Control Timing: PE and TI Comparison # Special Timing Programmed External Response Triggered Internal Response PE_i0 REQ_EXP during GLOB Will corrupt next frame = TI_s0 Sequence length extended by 1 frame with every new request PE_s0 REQ_EXP during EXPOSURE Will stop EXPOSURE and start new one EXPOSURE (2) EXPOSURE (3) EXPOSURE (1) REQ_EXP SENSOR STATE EXPOSURE (0) IDLE GLOB READOUT (0) GLOB READOUT (1) IDLE > Frame time (a) EXPOSURE (1) REQ_EXP SENSOR STATE EXPOSURE (0) IDLE GLOB READOUT (0) GLOB READOUT (1) (b) GLOB READOUT (2) GLOB READOUT (3) IDLE EXPOSURE (2) EXPOSURE (3) EXPOSURE (1) REQ_EXP SENSOR STATE EXPOSURE (0) IDLE GLOB READOUT (0) GLOB READOUT (1) (c) GLOB READOUT (2) GLOB READOUT (3) IDLE EXPOSURE (2) EXPOSURE (3) EXPOSURE (1) REQ_EXP SENSOR STATE EXPOSURE (0) IDLE GLOB READOUT (0) GLOB READOUT (1) (d) GLOB READOUT (2) GLOB READOUT (3) IDLE |
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