TQM8M9077
0.05-4 GHz Digital Variable Gain Amplifier
Typical Performance
Test Conditions: Vdd=+5 V, Temp=+25°C
Frequency
Gain(1)
MHz
dB
500
14.1
900
14.0
2140
13.0
2700
13.0
3500
12.4
4000
11.4
Input Return Loss
Output Return Loss
Output P1dB
Output IP3(2)
Noise Figure(3)
dB
-15.8
-14.3
+21.5
+40.7
3.0
-16.2
-22.5
+21.7
+41.2
3.1
-17.6
-10.5
+21.5
+38.5
3.9
-32.5
-13.9
+20.5
+37.8
4.3
-12.2
-13.6
+19.6
+36.3
5.5
-10.1
-9.6
dB
dBm
dBm
dB
+18.3
+35.6
6.2
Amplifier Current
mA
88
Notes:
1. Gain values reflect de-embedding of 0.4 dB eval board RF I/O line losses that would not be present in target applications.
2. OIP3 measured with two tones at an output power of +3 dBm / tone separated by 1 MHz. The suppression on the largest IM3 product is
used to calculate the OIP3 using 2:1 rule.
3. NF values reflect de-embedding of eval board RF I/O line losses that would not be present in target applications.
4. Unless otherwise stated, performance plots shown below for DVGA maximum gain state.
Output Return Loss vs. Frequency
Gain vs. Frequency
Input Return Loss vs. Frequency
0
-5
16
15
14
13
12
11
10
9
0
-10
-20
-30
-40
+85°C
+25°C
40°C
+85°C
+25°C
40°C
+85°C
+25°C
40°C
-10
-15
-20
-25
0
1
2
3
4
0
1
2
3
4
0
1
2
3
4
Frequency (GHz)
Frequency (GHz)
Frequency (GHz)
OIP3 vs. Frequency
P1dB vs. Frequency
Noise Figure vs. Frequency
50
26
24
22
20
18
16
8
6
4
2
0
1 MHz Tone Spacing
Pout / tone = +3 dBm
+85
+25
−40
°C
°C
°C
45
40
35
30
+85
+25
−40
°
°
°
C
C
C
+85
°C
°C
°C
+25
−40
0.0
1.0
2.0
3.0
4.0
0.0
1.0
2.0
Frequency (GHz)
3.0
4.0
0
0.5
1
1.5
2
2.5
3
3.5
4
Frequency (MHz)
Frequency (GHz)
Gain vs. Frequency
Input Return Loss vs. Frequency
Output Return Loss vs. Frequency
20
15
10
5
0
-5
0
-5
Max Gain
Temp.=+25°C, Key bit states
Temp.=+25°C
Key bit states
Temp.=+25°C
Key bit states
Max Gain
-10
-15
-20
-25
-30
-35
-40
Max Gain
-10
-15
-20
-25
-30
Min Gain
0
-5
-10
-15
-20
-25
Min Gain
Min Gain
0
1
2
3
4
0
1
2
3
4
0
1
2
3
4
Frequency (GHz)
Frequency (GHz)
Frequency (GHz)
Datasheet: Rev D 01-20-12
© 2012 TriQuint Semiconductor, Inc.
Disclaimer: Subject to change without notice
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