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XR33152HDEVB Datasheet(PDF) 6 Page - Exar Corporation |
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XR33152HDEVB Datasheet(HTML) 6 Page - Exar Corporation |
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6 / 21 page  XR 33152/XR33155/XR33156/XR33158 5/19 REV2B Electrical Characteristics (Continued) Driver AC Characteristics - XR33152 (250kbps) Unless otherwise noted: VCC = 3.0V to 5.5V, TA = TMIN to TMAX. Typical values are at VCC = 5.0V, TA = 25°C. Symbol Parameter Conditions Min Typ Max Units tDPLH Driver propagation delay (low to high) CL = 50pF, RL = 54Ω, Figure 7 350 1500 ns tDPHL Driver propagation delay (high to low) 350 1600 ns |tDPLH-tDPHL| Differential driver output skew 20 200 ns tDR, tDF Driver differential output rise or fall time 400 1500 ns Maximum data rate 1/tUI, duty cycle 40% to 60% 250 kbps tDZH Driver enable to output high CL = 50pF, RL = 500Ω, Figure 8 200 2500 ns tDZL Driver enable to output low 200 2500 ns tDHZ Driver disable from output high 250 ns tDLZ Driver disable from output low 250 ns tRZH(SHDN) Driver enable from shutdown to output high CL = 50pF, RL = 500Ω, Figure 8 5500 ns tRZL(SHDN) Driver enable from shutdown to output low 5500 ns tSHDN Time to shutdown Notes 1 and 2 50 200 600 ns Receiver AC Characteristics -XR33152 (250kbps) Unless otherwise noted: VCC = 3.0V to 5.5V, TA = TMIN to TMAX. Typical values are at VCC = 5.0V, TA = 25°C. Symbol Parameter Conditions Min Typ Max Units tRPLH Receiver propagation delay (low to high) CL = 15pF, VID = ±2V, VID rise and fall times < 15ns, Figure 9 200 ns tRPHL Receiver propagation delay (high to low) 200 ns |tRPLH-tRPHL| Receiver propagation delay skew 30 ns Maximum data rate 1/tUI, duty cycle 40% to 60% 250 kbps tRZH Receiver enable to output high CL = 15pF, RL = 1kΩ, Figure 10 50 ns tRZL Receiver enable to output low 50 ns tRHZ Receiver disable from output high 50 ns tRLZ Receiver disable from output low 50 ns tRZH(SHDN) Receiver enable from shutdown to output high CL = 15pF, RL = 1kΩ, Figure 10 3500 ns tRZL(SHDN) Receiver enable from shutdown to output low 3500 ns tSHDN Time to shutdown Notes 1 and 2 50 200 600 ns NOTES: 1. The transceivers are put into shutdown by bringing RE high and DE low simultaneously for at least 600ns. If the control inputs are in this state for less than 50ns, the device is guaranteed to not enter shutdown. If the enable inputs are held in this state for at least 600ns, the device is ensured to be in shutdown. Note that the receiver and driver enable times increase significantly when coming out of shutdown. 2. This spec is guaranteed by design and bench characterization. |
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