參數(shù)資料
型號: μPC8001
廠商: NEC Corp.
英文描述: IF Amplifier IC(中頻放大器)
中文描述: 中頻放大器集成電路(中頻放大器)
文件頁數(shù): 11/22頁
文件大小: 111K
代理商: ΜPC8001
μ
PC8001
11
Figure 3-1. Mixer Input
(a) 50
Termination
(b) LC Matching
Note
The values L and C are affected by the parasitic capacitance and inductance of the board. Therefore,
adjust L and C so that the impedance at the MIX IN pin from the signal source equals 50
.
Remark
The signal source impedance is 50
.
Figure 3-2. Third Order Intercept
Remark
Signal source impedance is 50
.
MIX IN1
107 nH
V
MIX IN
5 pF
0.01
μ
F
0.01
μ
F
V
MIX IN
50
14 MIX IN1
Note
Note
14
11
14
MIX IN1
MIX OUT
OSC IN
0.01
μ
F
0.01
μ
F
1.5 k
50
16.7
f
1
f
2
f
1
= 130.1 MHz, f
2
= 130.2 MHz
16.7
16.7
0.01
μ
F
V
OSC IN
= –15 dBm
18 dB/OCT
6 dB/OCT
f = 130 MHz
f
1
= 130.1 MHz
f
2
= 130.2 MHz
V
M
V
MIX IN
[dBm]
9
Third order intercept
50
f
OSC IN
= 129.545 MHz
Measure 455 kHz component
level with spectrum analyzer
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