ADL5910

Data Sheet

Rev. 0 | Page 18 of 22

Figure 21 shows the frequency response of this circuit along

with the response with no compensation. In this example, the

threshold voltage on VIN− was set to 30 mV.

–14

–12

–10

–8

–6

–4

–2

0

2

4

0.01

0.1

1

10

FREQUENCY (GHz)

TRIP LEVEL VARIATION WITH NO COMPENSATION

TRIP LEVEL VARIATION WITH COMPENSATION

Figure 21. Variation in Threshold Trip Point with and

Without Frequency Pre-Emphasis

Figure 22 shows the measured input return loss of the circuit.

50

20

30

40

–10

0

10

–30

–20

–50

START 1MHz

IFBW 10kHz

STOP 6.001GHz

–40

FREQUENCY (Hz)

1: 500MHz, –34.290dB

2: 2GHz, –26.517dB

3: 4GHz, –23.686dB

4: 6GHz, –9.1210dB

1

2

3

4

Figure 22. Input Return Loss of ADL5910 with Pre-Emphasis Circuit