參數(shù)資料
型號: P13252EJ2V0AN00
英文描述: uPC2708TB/2709TB/2710TB. uPC2762TB/2763TB. uPC2771TB/2776TB 6-Pin Super Mini-Mold Silicon Medium-Power High-Frequency Amplifier MMIC
中文描述: uPC2708TB/2709TB/2710TB。 uPC2762TB/2763TB。 uPC2771TB/2776TB 6引腳超小型模具硅中功率高頻單片放大器
文件頁數(shù): 11/39頁
文件大小: 211K
代理商: P13252EJ2V0AN00
Application Note P13252EJ2V0AN00
11
3.1
μ
PC2708TB,
μ
PC2709TB,
μ
PC2710TB
The external inductor values vs. gain frequency characteristics of the
μ
PC2708TB,
μ
PC2709TB, and
μ
PC2710TB
were measured using similar wire-wound chip inductors as were externally attached to the
μ
PC2708T,
μ
PC2709T,
and
μ
PC2710T. Figures 3-2, 3-3, and 3-4 show those characteristics. Since the
μ
PC2708TB,
μ
PC2709TB, and
μ
PC2710TB have a circuit in which the output pin and the input-state/output-state peaking capacitance are linked,
the peaking frequency is easily shifted to a higher frequency according to the external inductor value at the output
pin. When a 10-nH inductor was used in this evaluation, a gain of approximately 22 dB was ensured at 2.7 GHz.
Next, the 10-nH inductor was used to evaluate the characteristics of when these ICs are used in a frequency band of
1 GHz or more. Figures 3-5, 3-6, and 3-7 show those characteristics.
Figure 3-2.
μ
PC2708TB Power Gain vs. Frequency Characteristics External Inductor Value Dependencies
(Conditions: T
A
=
+25°C, V
CC
= V
out
=
5.0 V, Z
S
= Z
L
= 50
)
MARKER 1 100 MHz
MARKER 2 1000 MHz
MARKER 3 2000 MHz
MARKER 4 2500 MHz
MARKER 5 3000 MHz
P
P
16
14
12
10
8
6
3
START 0.100000000 GHz
STOP 3.100000000 GHz
Frequency f (GHz)
1
L = 10 nH
L = 33 nH
0.1
1.0
1.9
2.5
3.1
2
4
5
L = 100 nH
L = 100 nH
L = 10 nH
L = 33 nH
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