Open-emitter

The digital open-emitter is a simple open-emitter gate. The state seen on the input line is reflected in the output. The state seen on the input line determines the strength of the output. If the input to this device is a 1, then the output is a 1 with a STRONG. If the input is a 0, then the output is a HI_IMPEDANCE 0, otherwise, the output strength is UNDETERMINED. The falling (open_delay) and rising (rise_delay) delays may be specified independently.

Port Table

Description Direction Default Type Allowed Types Vector Vector Bounds Null Allowed
Input IN d d NO   NO
Output OUT d d NO   NO

Parameter Table

Name Description Data Type Default Value Limits Vector Vector Bounds Null Allowed
rise_delay rise delay Real 1.0e-9 1.0e-12 / - NO   YES
open_delay open delay Real 1.0e-9 1.0e-12 / - NO   YES
input_load input load value (F) Real 1.0e-12   NO   YES

Example

a9 1 2 opene1
  
.model opene1 d_open_e(open_delay = 0.5e-9 rise_delay = 0.5e-9 input_load = 0.5e-12)

See also

XSPICE Devices
XSPICE Code Models