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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ADS5294IPFPR Fiches technique(PDF) 39 Page - Texas Instruments |
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ADS5294IPFPR Fiches technique(HTML) 39 Page - Texas Instruments |
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39 / 67 page  24-tap filter (Even Tap) 24-tap filter (Even Tap) Decimation by 2 or by 4 GAIN (0 to 12 dB , 1 dB steps ) DIGITAL PROCESSING BLOCK for CHANNEL 1 Test Patterns - Ramp MAPPER MULTIPLEXER 8 : 8 LVDS OUTPUTS 14-BIT ½ ADS529x Average of 2 channels Average of 4 channels Channel 1 ADC Data 23-tap filter (Odd Tap) Built-in Coefficients Decimation by 2 or by 4 or by 8 Custom Coefficients Serializer Wire 1 Serializer Wire 2 Channel 1 Serializer Wire 1 Serializer Wire 2 Channel 2 Serializer Wire 1 Serializer Wire 2 Channel 3 Serializer Wire 1 Serializer Wire 2 Channel 4 OUT 1A OUT 1B OUT 2A OUT 2B OUT 3A OUT 3B OUT 4A OUT 4B 12-tap filter Channel 2 ADC Data Channel 3 ADC Data Channel 4 ADC Data 23-tap filter (Odd Tap) ADS5294 www.ti.com SLAS776B – NOVEMBER 2011 – REVISED JULY 2012 Figure 49. Digital Processing Block Diagram PROGRAMMABLE DIGITAL GAIN ADDR. D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 NAME (HEX) 2A X X X X GAIN_CH1<3:0> X X X X GAIN_CH2<3:0> X X X X GAIN_CH3<3:0> X X X X GAIN_CH4<3:0> 2B X X X X GAIN_CH5<3:0> X X X X GAIN_CH6<3:0> X X X X GAIN_CH7<3:0> X X X X GAIN_CH8<3:0> In applications where the full scale swing of the analog input signal is much less than the 2 VPP range supported by the ADS5294, a programmable gain can be set to achieve the full-scale output code even with a lower analog input swing. The programmable gain for each channel can be individually set using a set of four bits, indicated as GAIN_CHN<3:0> for Channel N. The gain setting is coded in binary from 0-12 dB as shown in Table 4. Table 4. Gain Setting for Channel N GAIN_CHN<3> GAIN_CHN<2> GAIN_CHN<1> GAIN_CHN<0> CHANNEL N GAIN SETTING 0 0 0 0 0 dB 0 0 0 1 1 dB 0 0 1 0 2 dB 0 0 1 1 3 dB 0 1 0 0 4 dB 0 1 0 1 5 dB 0 1 1 0 6 dB 0 1 1 1 7 dB 1 0 0 0 8 dB 1 0 0 1 9 dB 1 0 1 0 10 dB 1 0 1 1 11 dB 1 1 0 0 12 dB 1 1 0 1 Do not use 1 1 1 0 Do not use 1 1 1 1 Do not use Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback 39 Product Folder Link(s) :ADS5294 |
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