APPLICATION NOTE
3
+ (1meg, -20.4, -59.5)
+ (2meg, -23.4, -46.0)
+ (3meg, -24.7, -39.1)
+ (5meg, -25.4, -36.9)
+ (7meg, -26.2, -35.9)
+ (10meg, -27.7, -34.6)
+ (20meg, -30.0, -23.0)
+ (30meg, -30.3, -16.5)
+ (40meg, -30.0, -12.0)
+ (50meg, -29.7, -08.0)
+ (60meg, -29.6, -06.5)
+ (70meg, -29.6, -06.3)
+ (80meg, -29.6, -06.2)
+ (100meg, -29.6, -06.6)
+ (200meg, -29.7, -09.5)
+ (1000meg, -32.0, -26.0))
RBEAD 1 2 200
.ENDS BEAD73
If ferrite bead data is unavailable in an impedance magnitude and angle format, then the impedance magnitude
and angle should be computed as:
Resistor RBEAD in the listing was included to reduce the Q of the bead and supply a real shunt impedance
around the VCCS. RBEAD is determined empirically with the VCCS frequency table coefficients to provide a good
representation of the bead's frequency dependent behavior.
Figure 3: Circuit Design for BEAD73_1
