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ADF5610 Datasheet(PDF) 9 Page - Analog Devices |
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ADF5610 Datasheet(HTML) 9 Page - Analog Devices |
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9 / 51 page ![]() Data Sheet ADF5610 Rev. 0 | Page 9 of 51 TIMING SPECIFICATIONS SPI Open Mode: Write Timing Characteristics AVDD = DVDD = 3.3 V, exposed pad (EPAD) = 0 V. See Figure 30. Table 2. Parameter Test Conditions/Comments Min Typ Max Unit t1 Serial data input (SDI) setup time to SCK rising edge 3 ns t2 Serial clock (SCK) rising edge to SDI hold time 3 ns t3 Serial enable (SEN) low duration 10 ns t4 SEN high duration 10 ns t5 SCK 32nd rising edge to SEN rising edge 10 ns t6 Recovery time (not shown in Figure 30) 20 ns fSCK Maximum SPI clock speed 50 MHz SPI Open Mode: Read Timing Characteristics AVDD = DVDD = 3.3 V, EPAD = 0 V. See Figure 31 and Figure 32. Table 3. Parameter Test Conditions/Comments Min Typ Max Unit t1 SDI setup time to SCK rising edge. 3 ns t2 SCK rising edge to SDI hold time. 3 ns t3 SEN low duration. 10 ns t4 SEN high duration. 10 ns t51 SCK rising edge to SDO time. Add 0.2 ns for each pF of CLOAD. 8.2 ns t6 Recovery time. 10 ns t7 SCK 32nd rising edge to SEN rising edge. 10 ns 1 An extra 0.2 ns delay is required for every 1 pF load on SDO. SPI Legacy Mode: Write Timing Characteristics AVDD = DVDD = 3.3 V ± 10%, analog ground (AGND) = digital ground (DGND) = 0 V. See Figure 28. Table 4. Parameter Test Conditions/Comments Min Typ Max Units t1 SEN to SCK setup time 8 ns t2 SDI to SCK setup time 3 ns t3 SCK to SDI hold time 3 ns t4 SEN low duration 20 ns Maximum SPI Clock Frequency 50 MHz SPI Legacy Mode: Read Timing Characteristics AVDD = DVDD = 3.3 V, ±10%, AGND = DGND = 0 V. See Figure 29. Table 5. Parameter Test Conditions/Comments Min Typ Max Units t1 SEN to SCK setup time 8 ns t2 SDI to SCK setup time 3 ns t3 SCK to SDI hold time 3 ns t4 SEN low duration 20 ns t5 SCK to SDO delay. Add 0.2 ns for each pF of CLOAD 8.2 ns |
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