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AD5671RBCPZ-REEL7 Arkusz danych(PDF) 8 Page - Analog Devices |
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AD5671RBCPZ-REEL7 Arkusz danych(HTML) 8 Page - Analog Devices |
8 / 32 page AD5671R/AD5675R Data Sheet Rev. B | Page 8 of 32 TIMING CHARACTERISTICS VDD = 2.7 V to 5.5 V, 1.8 V ≤ VLOGIC ≤ 5.5 V, all specifications −40°C to +125°C, unless otherwise noted. Table 5. Parameter1, 2 Min Max Unit Description t1 0.92 µs SCL cycle time t2 0.11 µs tHIGH, SCL high time t3 0.44 µs tLOW, SCL low time t4 0.04 µs tHD,STA, start/repeated start hold time t5 40 ns tSU,DAT, data setup time t63 −0.04 µs tHD,DAT, data hold time t7 −0.045 µs tSU,STA, repeated start setup time t8 0.195 µs tSU,STO, stop condition setup time t9 0.12 µs tBUF, bus free time between a stop condition and a start condition t104 0 ns tR, rise time of SCL and SDA when receiving t114, 5 20 + 0.1CB ns tF, fall time of SCL and SDA when transmitting/receiving t12 20 ns LDAC pulse width t13 0.4 ns SCL rising edge to LDAC rising edge t14 4.8 ns RESET minimum pulse width low, 1.8 V ≤ VLOGIC ≤ 2.7 V 6.2 ns RESET minimum pulse width low, 2.7 V ≤ VLOGIC ≤ 5.5 V t15 132 ns RESET activation time, 1.8 V ≤ VLOGIC ≤ 2.7 V 80 ns RESET activation time, 2.7 V ≤ VLOGIC ≤ 5.5 V tSP6 0 ns Pulse width of suppressed spike CB5 400 pF Capacitive load for each bus line 1 See Figure 2. 2 Guaranteed by design and characterization; not production tested. 3 A master device must provide a hold time of at least 300 ns for the SDA signal (referred to the minimum VIH of the SCL signal) to bridge the undefined region of the SCL falling edge. 4 tR and tF are measured from 0.3 × VDD to 0.7 × VDD. 5 CB is the total capacitance of one bus line in pF. 6 Input filtering on the SCL and SDA inputs suppresses noise spikes that are less than 50 ns. Timing Diagrams Figure 2. 2-Wire Serial Interface Timing Diagram Figure 3. RESET Timing Diagram SCL SDA t1 t3 LDAC1 LDAC2 START CONDITION REPEATED START CONDITION STOP CONDITION NOTES 1ASYNCHRONOUS LDAC UPDATE MODE. 2SYNCHRONOUS LDAC UPDATE MODE. t4 t6 t5 t7 t8 t2 t13 t4 t11 t10 t12 t12 t9 RESET t14 t15 VOUTx |
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Podobny opis - AD5671RBCPZ-REEL7 |
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