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): 31/39頁
文件大小: 211K
代理商: P13252EJ2V0AN00
Application Note P13252EJ2V0AN00
31
3.3
μ
PC2776TB
The external inductor values and gain frequency characteristics of the
μ
PC2776TB were measured using similar
wire-wound chip inductors as were attached to the
μ
PC2776T. Figure 3-14 shows those characteristics. Since the
output-side characteristic impedance of the
μ
PC2776TB below the VHF band is close to 50
, using an external
inductor value greater than or equal to 100 nH makes the
μ
PC2776TB suitable for applications in the VHF band.
Also, the curves in Figure 3-14 show that a wide area shift of frequencies cannot be achieved by reducing the
inductor value as can be done for the
μ
PC2709TB since an internal circuit insensitive to load variations is used for
the
μ
PC2776TB.
Figure 3-14.
μ
PC2776TB Power Gain vs. Frequency Characteristic 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
26
24
22
20
18
16
3
5
START 0.100000000 GHz
STOP 3.100000000 GHz
Frequency
L = 100 nH
1
L = 10 nH
L = 33 nH
L = 10 nH
L = 33 nH
4
L = 100 nH
0.1
1.0
1.9
2.5
3.1
2
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