MAX2321EUP Maxim Integrated Products, MAX2321EUP Datasheet - Page 17

• Manufacturer Part Number: MAX2321EUP
• Description: RF Amplifier Adj SiGe Dual Band LNA/Mixer
• Manufacturer: Maxim Integrated Products

Keep RF signal lines as short as possible to minimize
losses and radiation. Use high-Q components for the LNA
input matching circuit to achieve the lowest possible
Table 5. Typical Cascaded Performance of Cellular-Band Receiver with 3dB Interstage
Filter Loss
Table 6. Typical Cascaded Performance of PCS-Band Receiver with 3dB Interstage
Filter Loss
Table 7. Cellular LNA S Parameters in High-Gain, High-Linearity Mode
FREQUENCY
Conversion Power Gain
Noise Figure
Third-Order Input Intercept
Conversion Power Gain
Noise Figure
Third-Order Input Intercept
(MHz)
1000
700
750
800
850
900
950
PARAMETER
PARAMETER
______________________________________________________________________________________
(mag)
0.579
0.548
0.534
0.503
0.496
0.52
0.51
S11
Layout Considerations
(phase)
-74.8
-78.4
-81.2
-83.7
-86.1
-88.5
-90.6
S11
HIGH LINEARITY
HIGH GAIN,
-8.9dBm
25.4dB
2.1dB
SiGe Dual-Band LNA/Mixer ICs
(mag)
4.63
4.39
4.13
3.88
S21
3.7
3.5
3.3
HIGH LINEARITY
HIGH GAIN,
-7.6dBm
2.6dB
24dB
Adjustable, High-Linearity,
(phase)
92.1
87.9
84.4
81.9
79.4
76.6
74.9
LOW LINEARITY
S21
HIGH GAIN,
noise figure. At the digital mixer outputs, keep the differ-
ential signal lines together and of equal length to ensure
signal balance. For best gain and noise performance, sol-
der the slug evenly to the board ground plane.
-10.6dBm
24.5dB
2.3dB
0.0908
(mag)
0.085
0.089
0.096
0.099
0.104
0.109
S12
LOW LINEARITY
HIGH GAIN,
-9.3dBm
22.5dB
3.0dB
HIGH LINEARITY
LOW GAIN,
(phase)
-6.8dBm
60.9
60.6
60.1
58.8
58.3
59.1
S12
11.8dB
60
8.9dB
(mag)
0.714
0.696
0.689
0.683
0.677
0.674
0.669
S22
LOW GAIN
7.1dBm
12.4dB
7.5dB
-6.8dBm
22.7dB
3.3dB
FM
(phase)
-34.7
-35.9
-36.6
-37.6
-38.3
-39.3
-40.8
S22
17