Data Sheet HMC8120
Rev. A | Page 7 of 16
TYPICAL PERFORMANCE CHARACTERISTICS
–20
–15
–10
–5
0
5
10
15
20
25
30
69 70 71 72 73 74 75 76 77 78
RESPONSE (dB)
FREQUENCY (GHz)
GAIN
INPUT RETURN LOSS
OUTPUT RETURN LOSS
13150-011
Figure 11. Broadband Gain and Return Loss Response vs. Frequency,
V
CTL1
/V
CTL2
= −5 V
0
5
10
15
20
25
30
71.0 71.5 72.0 72.5 73.0 73.5 74.0 74.5 75.0 75.5 76.0
GAIN (dB)
FREQUENCY (GHz)
V
CTLx
= –5.0V
V
CTLx
= –4.0V
V
CTLx
= –3.5V
V
CTLx
= –3.0V
V
CTLx
= –2.6V
V
CTLx
= –2.2V
V
CTLx
= –2.0V
V
CTLx
= –1.5V
V
CTLx
= –1.2V
V
CTLx
= –1.0V
13150-012
Figure 12. Gain vs. Frequency at Various Control Voltages
–20
–18
–16
–14
–12
–10
–8
–6
–4
–2
0
71.0 71.5 72.0 72.5 73.0 73.5 74.0 74.5 75.0 75.5 76.0
RETURN LOSS (dB)
FREQUENCY (GHz)
T
A
= +25°C
T
A
= +85°C
T
A
= –55°C
13150-013
Figure 13. Input Return Loss vs. Frequency at Various Temperatures,
V
CTL1
/V
CTL2
= −5 V
10
12
14
16
18
20
22
24
26
28
30
71.0 71.5
72.0
72.5 73.0 73.5 74.0 74.5 75.0 75.5 76.0
GAIN (dB)
FREQUENCY (GHz)
T
A
= +25°C
T
A
= +85°C
T
A
= –55°C
13150-014
Figure 14. Gain vs. Frequency at Various Temperatures,
V
CTL1
/V
CTL2
= −5 V
0
5
10
15
20
25
30
–5.0 –4.5 –4.0 –3.5 –3.0 –2.5 –2.0 –1.5 –1.0
GAIN (dB)
CONTROL VOLTAGE (V)
RF = 71GHz
RF = 72GHz
RF = 73GHz
RF = 74GHz
RF = 75GHz
RF = 76GHz
13150-015
Figure 15. Gain vs. Control Voltage at Various RF Frequencies
–20
–18
–16
–14
–12
–10
–8
–6
–4
–2
0
71.0 71.5 72.0 72.5 73.0 73.5 74.0 74.5 75.0 75.5 76.0
RETURN LOSS (dB)
FREQUENCY (GHz)
T
A
= +25°C
T
A
= +85°C
T
A
= –55°C
13150-016
Figure 16. Output Return Loss vs. Frequency at Various Temperatures,
V
CTL1
/V
CTL2
= −5 V
