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ADE5169ASTZF62 Datasheet(PDF) 10 Page - Analog Devices |
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ADE5169ASTZF62 Datasheet(HTML) 10 Page - Analog Devices |
10 / 148 page ADE5166/ADE5169/ADE5566/ADE5569 Preliminary Technical Data Rev. PrB | Page 10 of 148 TIMING SPECIFICATIONS AC inputs during testing were driven at VSWOUT − 0.5 V for Logic 1 and 0.45 V for Logic 0. Timing measurements were made at VIH minimum for Logic 1 and VIL maximum for Logic 0, as shown in Figure 3. For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage occurs. A port pin begins to float when a 100 mV change from the loaded VOH/VOL level occurs as shown in Figure 3. CLOAD for all outputs = 80 pF, unless otherwise noted. VDD = 2.7 V to 3.6 V; all specifications TMIN to TMAX, unless otherwise noted. VSWOUT – 0.5V 0.45V 0.2VSWOUT + 0.9V TEST POINTS 0.2VSWOUT – 0.1V VLOAD – 0.1V VLOAD VLOAD + 0.1V TIMING REFERENCE POINTS VLOAD – 0.1V VLOAD VLOAD – 0.1V Figure 3. Timing Waveform Characteristics Table 5. Clock Input (External Clock Driven XTAL1) Parameter 32.768 kHz External Crystal Parameter Description Min Typ Max Unit tCK XTAL1 period 30.52 μs tCKL XTAL1 width low 6.26 μs tCKH XTAL1 width high 6.26 μs tCKR XTAL1 rise time 9 ns tCKF XTAL1 fall time 9 ns 1/tCORE Core clock frequency1 1.024 MHz 1 The ADE5166/ADE5169/ADE5566/ADE5569 internal PLL locks onto a multiple (512 times) of the 32.768 kHz external crystal frequency to provide a stable 4.096 MHz internal clock for the system. The core can operate at this frequency or at a binary submultiple defined by the CD[2:0] bits, selected via the POWCON SFR (see Table 25). Table 6. I2C-Compatible Interface Timing Parameters (400 kHz) Parameter Description Typ Unit tBUF Bus-free time between stop condition and start condition 1.3 μs tL SCLK low pulse width 1.36 μs tH SCLK high pulse width 1.14 μs tSHD Start condition hold time 251.35 μs tDSU Data setup time 740 ns tDHD Data hold time 400 ns tRSU Setup time for repeated start 12.5 ns tPSU Stop condition setup time 400 ns tR Rise time of both SCLK and SDATA 200 ns tF Fall time of both SCLK and SDATA 300 ns tSUP1 Pulse width of spike suppressed 50 ns 1 Input filtering on both the SCLK and SDATA inputs suppresses noise spikes less than 50 ns. MSB tBUF SDATA (I/O) SCLK (I) STOP CONDITION START CONDITION REPEATED START LSB ACK MSB 1 2TO 7 89 1 S(R) PS tPSU tDSU tSHD tDHD tDSU tDHD tSUP tH tSUP tL tRSU tR tR tF tF Figure 4. I2C-Compatible Interface Timing |
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