sp301ct Exar Corporation, sp301ct Datasheet - Page 3

• Manufacturer Part Number: sp301ct
• Description: Rs-232/rs-422 Line Drivers/receivers
• Manufacturer: Exar Corporation

Notes:
TYPICAL PERFORMANCE CURVES
SIGNAL PROCESSING EXCELLENCE
RS-422 Driver
T
T
RS-232 Driver
T
T
I N
O U T
IN
OUT
GND
GND
–10V
GND
GND
–5V
Corporation
10V
2V
5V
5V
1.
2.
3.
4.
5.
6.
In Loop-back mode
Only one output drive pin per package will be shorted at any time
From 10% to 90% of steady-state
This is an absolute maximum rating; normal operating levels are V
Outputs unloaded; Inputs tied to GND; T
Typical SP302 current drains under full load are:
18mA (+12V), 10mA (-12V) and 7mA (+5V) in RS-232 mode only;
12mA (+12V), 14mA (-12V) and 31mA (+5V) in RS-232 and RS-422 modes;
RS-232 loads 3k , 2500pF, 20kHz; RS-422 outputs across 100 , 500kHz.
In Loopback mode, the external voltage input to the receiver must not exceed 10V, otherwise
the loopback test may be adversely affected.
5mA (+12V), 7mA (-12V) and 56mA (+5V) in RS-422 mode only;
500kHz
20kHz
A
= +25 C; V
IL
= 0V; LB=0
RS-232 Receiver
RS-422 Receiver
R
R
R
R
IN
OUT
IN
OUT
GND
GND
GND
GND
–5V
–2V
5V
5V
2V
5V
IN
< 5V
500kHz
20kHz
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