Datasheet

50: COAX
4 V
PP
V
CM
2:1 (TURNS)
100:
100:
1 V
PP
375
375
375
375
GAIN = 1
C
1
IS NOT REQUIRED IF V
CM
= GROUND
C
1
a
+
-
100: TWISTED PAIR
4 V
PP
V
CM
2:1 (TURNS)
200:
200:
1 V
PP
375
375
375
375
A
V
= 1
V
CM
a
+
-
R
L
= 100:
WHERE V
IN
= DIFFERENTIAL INPUT VOLTAGE
N = TRANSFORMER TURNS RATIO =
A
V
= CLOSED LOOP AMPLIFIER GAIN
R
OUT
= SERIES OUTPUT MATCHING RESISTOR
R
L
= LOAD RESISTOR
V
L
= VOLTAGE ACROSS LOAD RESISTOR
¨
¨
©
§
¨
¨
©
§
SECONDARY
PRIMARY
V
L
=
V
IN
* A
V
* N
2 R
OUT
* N
2
R
L
+ 1
¨
¨
©
§
¨
¨
©
§
LMH6551
www.ti.com SNOSAK7C –FEBRUARY 2005–REVISED MARCH 2013
Figure 35. Calculating Transformer Circuit Net Gain
Figure 36. Transformer Out Low Impedance Load
Figure 37. Driving 50Ω Test Equipment
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