mga-31189 Avago Technologies, mga-31189 Datasheet - Page 13

• Manufacturer Part Number: mga-31189
• Description: 70 To 500 Mhz Ampliier For If Applications Using The Avago Technologies Mga-31189 Ampliier
• Manufacturer: Avago Technologies

Performance of the MGA-31189 at 500 MHz
The MGA-31189 delivers good performance within the
500 MHz IF band. With a Vdd of +5 V and typical Idd of 110
mA, the device is produces 21.1 dB of small signal gain,
as shown in Figure 25, and an IRL of -23.9 dB and ORL of
-10.8 dB, as shown in Figure 24. The MGA-31189 delivers a
noise figure of 2.1 dB at 500 MHz. As for linearity, the MGA-
31189’s OIP3 is approximately 40 dBm for input tones of
-12 dBm amplitude and 10 MHz frequency spacing, and
OP1dB is approximately 23.3 dBm. Table 11 shows the
MGA-31189 performance at 500 MHz.
Figure 24. Input and output return loss
Figure 26. Reverse isolation
13
-10
-14
-18
-22
-26
-30
-24
-25
-26
-27
-28
-29
-30
-31
-32
-6
450
450
460 470 480 490 500 510 520 530 540
460 470 480 490 500 510 520 530 540
Frequency (MHz)
Frequency (MHz)
RED = Input Return Loss
BLUE = Output Return Loss
550
550
Table 11. MGA-31189 performance summary at 500 MHz
Figure 25. Small signal gain
Parameters
Frequency
Input Return Loss (IRL)
Small Signal Gain (SSGain)
Reverse Isolation (ISO)
Output Return Loss (ORL)
Noise Figure (NF)
Third-Order Intercept Point (OIP3)
1 dB Gain Compression Point (OP1dB) 23.3
22.0
21.5
21.0
20.5
20.0
19.5
450
460 470 480 490 500 510 520 530 540
Frequency (MHz)
Performances Unit
500
-23.9
21.1
-27.9
-10.8
2.1
40.0
MHz
dB
dB
dB
dB
dB
dBm
dBm
550