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MAX13442E Datasheet, PDF (4/18 Pages) Maxim Integrated Products – ±15kV ESD-Protected, ±80V Fault-Protected, Fail-Safe RS-485/J1708 Transceivers
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±15kV ESD-Protected, ±80V Fault-Protected,
Fail-Safe RS-485/J1708 Transceivers
SWITCHING CHARACTERISTICS (MAX13442E/MAX13444E)
(VCC = +4.75V to +5.25V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.)
PARAMETER
Driver Propagation Delay
Driver Differential Propagation Delay
Driver Differential Output
Transition Time
SYMBOL
CONDITIONS
MIN
tPLHA,
tPLHB
Figure 3, RL = 54Ω, CL = 50pF (MAX13442E)
RDIFF = 60Ω, CDIFF = 100pF (MAX13444E)
tDPLH,
tDPHL
RL = 54Ω, CL = 50pF, Figure 4
tLH,tHL RL = 54Ω, CL = 50pF, Figure 4
200
TYP
MAX UNITS
2000 ns
2000 ns
2000 ns
Driver Output Skew
tSKEWAB,
tSKEWBA
RL = 54Ω, CL = 50pF,
tSKEWAB = |tPLHA - tPHLB|,
tSKEWBA = |tPLHB - tPHLA|
350 ns
Differential Driver Output Skew
tDSKEW
RL = 54Ω, CL = 50pF,
tDSKEW = |tDPLH - tDPHL|
Maximum Data Rate
fMAX
250
Driver Enable Time to Output High
tPDZH RL = 500Ω, CL = 50pF, Figure 5
Driver Disable Time from Output High
tPDHZ RL = 500Ω, CL = 50pF, Figure 5
Driver Enable Time from Shutdown to
Output High
tPDHS RL = 500Ω, CL = 50pF, Figure 5
Driver Enable Time to Output Low
Driver Disable Time from Output Low
tPDZL
tPDLZ
RL = 500Ω, CL = 50pF, Figure 6
RL = 500Ω, CL = 50pF, Figure 6
Driver Enable Time from Shutdown to
Output Low
tPDLS RL = 500Ω, CL = 50pF, Figure 6
Driver Time to Shutdown
tSHDN RL = 500Ω, CL = 50pF
Receiver Propagation Delay
tRPLH,
tRPHL
CL = 20pF, VID = 2V, VCM = 0V, Figure 7
Receiver Output Skew
Receiver Enable Time to Output High
Receiver Disable Time from Output High
Receiver Wake Time from Shutdown
Receiver Enable Time to Output Low
Receiver Disable Time from Output Low
Receiver Time to Shutdown
tRSKEW
tRPZH
tRPHZ
tRPWAKE
tRPZL
tRPLZ
tSHDN
CL = 20pF, tRSKEW = |tRPLH - tRPHL|
RL = 1kΩ, CL = 20pF, Figure 8
RL = 1kΩ, CL = 20pF, Figure 8
RL = 1kΩ, CL = 20pF, Figure 8
RL = 1kΩ, CL = 20pF, Figure 8
RL = 1kΩ, CL = 20pF, Figure 8
RL = 500Ω, CL = 50pF
200 ns
2000
2000
kbps
ns
ns
4.2
µs
2000 ns
2000 ns
4.2
µs
800 ns
2000 ns
200 ns
2000 ns
2000 ns
4.2
µs
2000 ns
2000 ns
800 ns
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