Performance Curves
Quarter
Brick
0
-10
0.1
Forward Transmission
(dB)
48Vin 1.8Vout 25A
1
-20
-30
-40
-50
-60
-70
-80
-90
36 Vin
48 Vin
75 Vin
Output Impedance
( )
0.01
36 Vin
48 Vin
75 Vin
0.001
0.0001
10
100
1,000
10,000
100,000
-100
10
100
1,000
10,000
100,000
Hz
Hz
Figure 19:
Output impedance (Zout = Vout/Iout) for minimum, nomi-
nal, and maximum input voltage at full rated power.
Figure 20:
Forward Transmission (FT = Vout/Vin) for minimum, nomi-
nal, and maximum input voltage at full rated power.
0
-10
Reverse Transmission
(dB)
100
Input Impedance
( )
-20
-30
-40
-50
-60
-70
10
100
1,000
10,000
100,000
36 Vin
48 Vin
75 Vin
10
36 Vin
48 Vin
75 Vin
1
0.1
10
100
1,000
Hz
10,000
100,000
Hz
Figure 21:
Reverse Transmission (RT = Iin/Iout) for minimum, nomi-
nal, and maximum input voltage at full rated power.
Figure 22:
Input impedance (Zin = Vin/Iin) for minimum, nominal, and
maximum input
voltage at full rated power.
Product # PQ48018QNA25
Phone 1-888-567-9596
Doc.# 005-2QN418D_B
9/04/01
Page 7
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