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ADM4853 数据表(PDF) 5 Page - Analog Devices |
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ADM4853 数据表(HTML) 5 Page - Analog Devices |
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5 / 16 page  ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 Rev. D | Page 5 of 16 ADM4852/ADM4856 TIMING SPECIFICATIONS VCC = 5 V ± 5%, TA = TMIN to TMAX, unless otherwise noted. Table 5. Parameter Min Typ Max Unit Test Conditions/Comments DRIVER Maximum Data Rate 2.5 Mbps Propagation Delay, tPLH, tPHL 50 180 ns RLDIFF = 54 Ω, CL1 = CL2 = 100 pF, see Figure 20 Skew, tSKEW 50 ns RLDIFF = 54 Ω, CL1 = CL2 = 100 pF, see Figure 20 Rise/Fall Times, tR, tF 140 ns RLDIFF = 54 Ω, CL1 = CL2 = 100 pF, see Figure 20 Enable Time, tZH 180 ns RL = 500 Ω, CL = 100 pF, see Figure 21, ADM4852 Disable Time, tZL 180 ns RL = 500 Ω, CL = 15 pF, see Figure 21, ADM4852 Enable Time from Shutdown 4000 ns RL = 500 Ω, CL = 100 pF, see Figure 21, ADM4852 RECEIVER Propagation Delay, tPLH, tPHL 55 190 ns CL = 15 pF, see Figure 22 Differential Skew, tSKEW 50 ns CL = 15 pF, see Figure 22 Enable Time 5 50 ns RL = 1 kΩ, CL = 15 pF, see Figure 23, ADM4852 Disable Time 20 50 ns RL = 1 kΩ, CL = 15 pF, see Figure 23, ADM4852 Enable Time from Shutdown 4000 ns RL = 1 kΩ, CL = 15 pF, see Figure 23, ADM4852 Time to Shutdown 50 330 3000 ns ADM48521 1 The half-duplex device is put into shutdown mode by driving RE high and DE low. If these inputs are in this state for less than 50 ns, the device is guaranteed not to enter shutdown mode. If the enable inputs are in this state for at least 3000 ns, the device is guaranteed to enter shutdown mode. ADM4853/ADM4857 TIMING SPECIFICATIONS VCC = 5 V ± 5%, TA = TMIN to TMAX, unless otherwise noted. Table 6. Parameter Min Typ Max Unit Test Conditions/Comments DRIVER Maximum Data Rate 10 Mbps Propagation Delay, tPLH, tPHL 0 30 ns RLDIFF = 54 Ω, CL1 = CL2 = 100 pF, see Figure 20 Skew, tSKEW 10 ns RLDIFF = 54 Ω, CL1 = CL2 = 100 pF, see Figure 20 Rise/Fall Times, tR, tF 30 ns RLDIFF = 54 Ω, CL1 = CL2 = 100 pF, see Figure 20 Enable Time, tZH 35 ns RL = 500 Ω, CL = 100 pF, see Figure 21, ADM4853 Disable Time, tZL 35 ns RL = 500 Ω, CL = 15 pF, see Figure 21, ADM4853 Enable Time from Shutdown 4000 ns RL = 500 Ω, CL = 100 pF, see Figure 21, ADM4853 RECEIVER Propagation Delay, tPLH, tPHL 55 190 ns CL = 15 pF, see Figure 22 Differential Skew, tSKEW 30 ns CL = 15 pF, see Figure 22 Enable Time 5 50 ns RL = 1 kΩ, CL = 15 pF, see Figure 23, ADM4853 Disable Time 20 50 ns RL = 1 kΩ, CL = 15 pF, see Figure 23, ADM4853 Enable Time from Shutdown 4000 ns RL = 1 kΩ, CL = 15 pF, see Figure 23, ADM4853 Time to Shutdown 50 330 3000 ns ADM48531 1 The half-duplex device is put into shutdown mode by driving RE high and DE low. If these inputs are in this state for less than 50 ns, the device is guaranteed not to enter shutdown mode. If the enable inputs are in this state for at least 3000 ns, the device is guaranteed to enter shutdown mode. |
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