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ADE7880 数据表(PDF) 7 Page - Analog Devices |
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ADE7880 数据表(HTML) 7 Page - Analog Devices |
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7 / 104 page  Data Sheet ADE7880 Rev. A | Page 7 of 104 Parameter1, 2 Min Typ Max Unit Test Conditions/Comments POWER SUPPLY For specified performance PSM0 Mode VDD Pin 2.97 3.63 V Minimum = 3.3 V − 10%; maximum = 3.3 V + 10% IDD 25 28 mA PSM1 and PSM2 Modes VDD Pin 2.4 3.7 V IDD PSM1 Mode 5.3 5.8 mA PSM2 Mode 0.2 0.27 mA PSM3 Mode For specified performance VDD Pin 2.4 3.7 V IDD in PSM3 Mode 1.8 6 μA 1 See the Typical Performance Characteristics section. 2 See the Terminology section for a definition of the parameters. 3 ⎥ ⎦ ⎤ ⎢ ⎣ ⎡ L f 2800 means the whole number of the division. 4 The CLKIN/CLKOUT load capacitors refer to the capacitors that are mounted between the CLKIN and CLKOUT pins of the ADE7880 and AGND. The capacitors should be chosen based on the crystal manufacturer’s data sheet specification, and they must not have more than the maximum value specified in the table. TIMING CHARACTERISTICS VDD = 3.3 V ± 10%, AGND = DGND = 0 V, on-chip reference, CLKIN = 16.384 MHz, TMIN to TMAX = −40°C to +85°C. Note that dual function pin names are referenced by the relevant function only within the timing tables and diagrams (see the Pin Configuration and Function Descriptions section for full pin mnemonics and descriptions). Table 2. I2C-Compatible Interface Timing Parameter Standard Mode Fast Mode Parameter Symbol Min Max Min Max Unit SCL Clock Frequency fSCL 0 100 0 400 kHz Hold Time (Repeated) Start Condition tHD;STA 4.0 0.6 μs Low Period of SCL Clock tLOW 4.7 1.3 μs High Period of SCL Clock tHIGH 4.0 0.6 μs Set-Up Time for Repeated Start Condition tSU;STA 4.7 0.6 μs Data Hold Time tHD;DAT 0 3.45 0 0.9 μs Data Setup Time tSU;DAT 250 100 ns Rise Time of Both SDA and SCL Signals tR 1000 20 300 ns Fall Time of Both SDA and SCL Signals tF 300 20 300 ns Setup Time for Stop Condition tSU;STO 4.0 0.6 μs Bus Free Time Between a Stop and Start Condition tBUF 4.7 1.3 μs Pulse Width of Suppressed Spikes tSP N/A1 50 ns 1 N/A means not applicable. |
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