SP508E Datasheet, PDF (4/29 Pages) Exar Corporation – Rugged 20Mbps, 8 Channel Multi-Protocol Transceiver with Programmable DCE/DTE and Termination Resistors

ELECTRICAL SPECIFICATIONS
T_A = -40°C to +85°C and V_CC = +4.75V to +5.25V unless otherwise noted. Typical values are for T_A = 25C and Vcc = 5V
PARAMETER
V.11 RECEIVER (cont)
DC Parameters (cont.)
Input Current
MIN. TYP. MAX. UNITs
–3.25
±3.25mA
Current w/ 100Ω Termination ±60.75
mA
Input Impedance
4
kΩ
AC Parameters
Propagation Delay
t_PHL
t_PLH
Skew(|t_phl-t_plh|)
Max.Transmission Rate
30
85
ns
30
85
ns
5
10
ns
20
Mbps
Channel to Channel Skew
2
ns
V.35 DRIVER
DC Parameters
Outputs
Test Terminated Voltage
±0.44
±0.66Volts
Offset
±0.6Volts
Output Overshoot
Source Impedance
-0.2V_ST
50
+0.2V_ST Volts
150
Ω
Short-Circuit Impedance
135
165
Ω
AC Parameters
Outputs
Transition Time
7
20 ns
Propagation Delay
t_PHL
t_PLH
Differential Skew
30
85
ns
30
85
ns
5
10
ns
(|t_phl-t_plh|)
Max.Transmission Rate
20
Mbps
Channel to Channel Skew
2
ns
V.35 Receiver
DC Parameters
Inputs
Sensitivity
±50 +200mV
Source Impedance
90
110
Ω
Short-Circuit Impedance
135
165
Ω
AC Parameters
Propagation Delay
t_PHL
t_PLH
Skew(|t_phl-t_plh|)
Max.Transmission Rate
30
85ns
30
85ns
5
10ns
20
Mbps
Channel to Channel Skew
2
ns
Transceiver Leakage Current
Driver Output 3-State Current
500
Rcvr Output 3-State Current
1
µA
10 µA
POWER REQUIREMENTS
V_CC
I_CC (Shutdown Mode)
(V.28/RS-232)
(V.11/RS-422)
(EIA-530 & RS-449)
(V.35)
(EIA-530A)
4.75 5.00 5.25Volts
200
µA
95
mA
230
mA
270
mA
170
mA
200
mA
CONDITIONS
per Figure 20 and 22;
power on or off
per Figure 23 and 24
Using C_L = 50pF;
per Figures 33 and 38
per Figures 33 and 38
per Figure 33
per Figure 25
per Figure 25
per Figure 25; V_{ST = Steady state value}
per Figure 27; Z_S = V₂/V₁ x 50
per Figure 28
per Figure 29; 10% to 90%
per Figure 33 and 36; C_L = 20pF
per Figure 33 and 36; C_L = 20pF
per Figure 33 and 36; C_L = 20pF
per Figure 30; Z_S = V₂/V₁ x 50Ω
per Figure 31
per Figure 33 and 38; C_L = 20pF
per Figure 33 and 38; C_L = 20pF
per Figure 33; C_L = 20pF
per Figure 32; Drivers disabled
T_X & R_X disabled, 0.4V - V_O - 2.4V
All I_CC values are with V_CC = +5V
f_IN = 120kbps; Drivers active & loaded
f_IN = 10Mbps; Drivers active & loaded
f_IN = 10Mbps; Drivers active & loade
V.35 @ f_IN = 10Mbps, V.28 @ 20kbps
f_IN = 10Mbps; Drivers active & loaded
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.comSP508E_100_072412