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ADC32RF83 データシート(PDF) 123 Page - Texas Instruments |
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ADC32RF83 データシート(HTML) 123 Page - Texas Instruments |
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123 / 138 page  123 ADC32RF80, ADC32RF83 www.ti.com SBAS774A – MAY 2016 – REVISED DECEMBER 2016 Product Folder Links: ADC32RF80 ADC32RF83 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated 9.1.4 Power Consumption in Different Modes The ADC32RF8x consumes approximately 6.6 W of power when both channels are active with a divide-by-4 complex output. When different DDC options are used, the power consumption on the DVDD supply changes by a small amount but remains unaffected on other supplies. In the applications requiring just one channel to be active, channel A must be chosen as the active channel and channel B can be powered down. Power consumption reduces to approximately 4 W in single-channel operation with a divide-by-4 option at a 2949.12- MSPS device clock rate. Table 119 shows power consumption in different DDC modes for dual-channel and single-channel operation. Table 119. Power Consumption in Different DDC Modes (Sampling Clock Frequency, fS = 3 GSPS) DECIMATION OPTION ACTIVE CHANNEL ACTIVE DDC AVDD19 (mA) AVDD (mA) DVDD (mA) TOTAL POWER (mW) Divide-by-4 Channels A, B Single 1777 970 1785 6545 Divide-by-8 Channels A, B Dual 1777 973 1960 6749 Divide-by-8 Channels A, B Single 1777 973 1730 6485 Divide-by-16 Channels A, B Dual 1777 972 1971 6761 Divide-by-16 Channels A, B Single 1777 972 1705 6455 Divide-by-24 Channels A, B Dual 1771 975 1938 6715 Divide-by-24 Channels A, B Single 1771 972 1667 6400 Divide-by-32 Channels A, B Dual 1768 972 1835 6587 Divide-by-32 Channels A, B Single 1768 970 1574 6285 Divide-by-4 Channel A Single 961 796 1096 4002 Divide-by-8 Channel A Dual 961 790 1168 4078 Divide-by-8 Channel A Single 961 786 1047 3934 Divide-by-16 Channel A Dual 961 789 1172 4081 Divide-by-16 Channel A Single 961 786 1045 3932 Divide-by-24 Channel A Dual 958 785 1155 4051 Divide-by-24 Channel A Single 958 787 1016 3894 Divide-by-32 Channel A Dual 956 788 1104 3992 Divide-by-32 Channel A Single 956 786 978 3845 |
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