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ADM3491E Datasheet(PDF) 5 Page - Analog Devices |
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ADM3491E Datasheet(HTML) 5 Page - Analog Devices |
5 / 20 page ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E Rev. A | Page 5 of 20 DRIVER TIMING SPECIFICATIONS VCC = 3.3 V, TA = 25°C. Table 3. ADM3483E/ADM3488E Parameter Symbol Min Typ Max Unit Test Conditions/Comments MAXIMUM DATA RATE 250 kbps DIFFERENTIAL OUTPUT DELAY tDD 600 900 1400 ns RL = 60 Ω (see Figure 10) DIFFERENTIAL OUTPUT TRANSITION TIME tTD 400 740 1200 ns RL = 60 Ω (see Figure 10) PROPAGATION DELAY From Low to High Level tPLH 700 930 1500 ns RL = 27 Ω (see Figure 11) From High to Low Level tPHL 700 930 1500 ns RL = 27 Ω (see Figure 11) |tPLH − tPHL| PROPAGATION DELAY SKEW1 tPDS ±50 ns RL = 27 Ω (see Figure 11) ENABLE/DISABLE TIMING (ADM3483E ONLY) Enable Time to Low Level tPZL 900 1300 ns RL = 110 Ω (see Figure 13) Enable Time to High Level tPZH 600 800 ns RL = 110 Ω (see Figure 12) Disable Time from Low Level tPLZ 50 80 ns RL = 110 Ω (see Figure 13) Disable Time from High Level tPHZ 50 80 ns RL = 110 Ω (see Figure 12) Enable Time from Shutdown to Low Level tPSL 1.9 2.7 μs RL = 110 Ω (see Figure 13) Enable Time from Shutdown to High Level tPSH 2.2 3.0 μs RL = 110 Ω (see Figure 12) 1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|. VCC = 3.3 V, TA = 25°C. Table 4. ADM3486E Parameter Symbol Min Typ Max Unit Test Conditions/Comments MAXIMUM DATA RATE 2.5 Mbps DIFFERENTIAL OUTPUT DELAY tDD 20 42 70 ns RL = 60 Ω (see Figure 10) DIFFERENTIAL OUTPUT TRANSITION TIME tTD 15 28 60 ns RL = 60 Ω (see Figure 10) PROPAGATION DELAY From Low to High Level tPLH 20 42 75 ns RL = 27 Ω (see Figure 11) From High to Low Level tPHL 20 42 75 ns RL = 27 Ω (see Figure 11) |tPLH − tPHL| PROPAGATION DELAY SKEW1 tPDS −6 ±12 ns RL = 27 Ω (see Figure 11) ENABLE/DISABLE TIMING Enable Time to Low Level tPZL 52 100 ns RL = 110 Ω (see Figure 13) Enable Time to High Level tPZH 52 100 ns RL = 110 Ω (see Figure 12) Disable Time from Low Level tPLZ 40 80 ns RL = 110 Ω (see Figure 13) Disable Time from High Level tPHZ 40 80 ns RL = 110 Ω (see Figure 12) Enable Time from Shutdown to Low Level tPSL 700 1000 ns RL = 110 Ω (see Figure 13) Enable Time from Shutdown to High Level tPSH 700 1000 ns RL = 110 Ω (see Figure 12) 1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|. |
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