Pin description, Typical operating characteristics (continued) – Rainbow Electronics MAX2648 User Manual
Page 4
Pin Description
MAX2648
5GHz to 6GHz Low-Noise Amplifier
in 6-Pin UCSP
4
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(MAX2648 evaluation kit tuned for 5150MHz to 5350MHz, V
CC
= +3.0V, f
IN
= 5250MHz, P
IN
= -30dBm, 50
Ω system, T
A
= +25°C,
unless otherwise noted.)
-10 0 10 20 30 40 50 60 70 80 90
NOISE FIGURE vs. TEMPERATURE
(5250MHz APPLICATION CIRCUIT)
MAX2648 toc10
-40 -30 -20
0
0.5
1.0
1.5
2.0
2.5
3.0
OPERATING FREQUENCY (MHz)
NOISE FIGURE (dB)
-40
-30
-35
-25
-10
-5
-15
-20
0
5000
5200
5400
5600
5800
6000
|S
11
|, |S
12
|, AND |S
22
| vs. FREQUENCY
(5800MHz APPLICATION CIRCUIT)
MAX2648 toc11
OPERATING FREQUENCY (MHz)
MAGNITUDE (dB)
|S
22
|
|S
11
|
|S
12
|
10
12
11
13
16
17
15
14
18
5000
5200
5400
5600
5800
6000
|S
21
| vs. FREQUENCY
(5800MHz APPLICATION CIRCUIT)
MAX2648 toc12
OPERATING FREQUENCY (MHz)
|S
21
| (dB)
0
0.5
1.0
1.5
2.0
2.5
3.0
5725
5750
5775
5800
5825
NOISE FIGURE vs. FREQUENCY
(5800MHz APPLICATION CIRCUIT)
MAX2648 toc13
OPERATING FREQUENCY (MHz)
NOISE FIGURE (dB)
PIN
NAME
FUNCTION
A1
RFIN
Amplifier Input. AC-couple to this pin with a DC-blocking capacitor. External matching network is
required for optimum performance.
A2, A3, B2
GND
Ground. Provide a low-inductance connection to the ground plane.
B3
RFOUT
Amplifier Output. Provide DC bias to V
CC
through an RF choke or a quarter-wave transmission line
(see evaluation kit layout). External matching network is required for optimum performance.
B1
V
CC
Power-Supply Input. Bypass directly to ground plane at this bump. Additional bypassing may be
necessary for long V
CC
lines.