1Semiconductor
FEDL7020-02
ML7020
R1
Terminal→
TIO
C1 R2
Input amplifier 1
TI–
TI+
SGO
Line 1→
LI1O
R3
C2 R4 Input amplifier 2
LI1–
Line 2→
LI2O
R5
C3 R6 Input amplifier 3
LI2–
Example: The cutoff
frequency is fc = 10 kHz,
when R1 = R2 = 30 kΩ
(gain = 1), and C1 is 500 pF
VREF
Example: The cutoff
frequency is fc = 10 kHz,
when R3 = R4 = 30 kΩ
(gain = 1), and C2 is 500 pF
Example: The cutoff
frequency is fc = 10 kHz,
when R5 = R6 = 30 kΩ
(gain = 1), and C3 is 500 pF
Figure 1 Input amplifier 1 to 3 interface
Output amplifier 2
600 Ω
LO–
(–10.0 dBm)
0.022 µF
600 Ω: 600 Ω
–10.0 dBm
(–10.0 dBm)
LO+
Output amplifier 3
(When the transformer loss is 0 dB)
Figure 2 Output amplifier 2, 3 interface example
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