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LM98714 Datasheet(PDF) 20 Page - Texas Instruments |
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LM98714 Datasheet(HTML) 20 Page - Texas Instruments |
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20 / 115 page  OS R OS G OS B Input Bias/ Clamping Input Bias/ Clamping Input Bias/ Clamping CDS or Sample/Hold Amplifier CDS or Sample/Hold Amplifier CDS or Sample/Hold Amplifier PGA PGA PGA 3:1 MUX 5:1 MUX COLOR1DAC[9:0] COLOR2DAC[9:0] COLOR3DAC[9:0] COLOR4DAC[9:0] COLOR5DAC[9:0] COLOR2DAC[9:0] COLOR3DAC[9:0] 5:1 MUX COLOR1PGA[7:0] COLOR2PGA[7:0] COLOR3PGA[7:0] COLOR4PGA[7:0] COLOR5PGA[7:0] COLOR2PGA[7:0] COLOR3PGA[7:0] Black Level Offset DAC Black Level Offset DAC Black Level Offset DAC LM98714 SNAS254A – OCTOBER 2006 – REVISED JANUARY 2014 www.ti.com MODE 1B - ONE CHANNEL COLOR INPUT PER LINE/SEQUENTIAL LINE (INPUT) SAMPLING/THREE CHANNEL PROCESSING In Mode 1b, the OSR, OSG, and OSB inputs are sampled sequentially and processed through their respective channels. This mode allows an entire line of Red, Green, or Blue Pixels to be sampled before sequencing to the next input. This mode is useful with sensors that output whole lines of pixels of a single color. The order in which the channels are sampled is fully programmable. Actual switching from channel to channel is triggered by an SH pulse. The first SH pulse after this mode is set (or reset) sets up the first programmed channel for gain and offset and initiates sampling through that channel alone. The next SH pulse switches the active channel to the second channel indicated by the configuration registers. This sequencing with SH pulses continues to the third channel and then continuously loops through the channels. Figure 8. Mode 1b Signal Routing Table 4. Mode 1b Operating Details Detail One channel active per line. Active channel is sequenced by Channels Active OSB or OSG or OSR SH pulse at start of new line. Channel Sample Rate 30 MSPS per Channel (max) ADC Sample Rate 30 MSPS (max) fADC: fINCLK Internal 1x Clock Selected 1:01 fINCLK = 30MHz (max) SH Signal → R-R-R-R-R-R-R-R-R-R-R-R-R→ →SH Signal → G-G-G-G-G-G-G-G-G-G-G-G-G→ →SH Signal → B-B-B-B-B-B-B-B-B-B-B-B-B-B→ Output Sequencing or SH Signal → B-B-B-B-B-B-B-B-B-B-B-B-B-B→ →SH Signal → G-G-G-G-G-G-G-G-G-G-G-G-G→ →SH Signal → R-R-R-R-R-R-R-R-R-R-R-R-R→ 20 Submit Documentation Feedback Copyright © 2006–2014, Texas Instruments Incorporated Product Folder Links: LM98714 |
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