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參數資料
| 型號： | P14822EJ2V0AN00 |
| 英文描述： | uPC8172TB/uPC8187TB 2.5GHz Silicon Frequency Up-Converter IC for Mobile Communication |
| 中文描述： | uPC8172TB/uPC8187TB 2.5GHz的硅頻率上轉換器集成電路移動通信 |
| 文件頁數： | 11/23頁 |
| 文件大小： | 188K |
| 代理商： | P14822EJ2V0AN00 |
Preliminary Application Note P14822EJ2V0AN
11
Figure 4-1. Examples of External Circuit Configurations (
μ
PC8187TB) (2/2)
RF = 0.83 GHz matching
IF matching
RF = 1.9 GHz matching
IF matching
RF = 2.4 GHz matching
IF matching
When f
RFout
= 0.83 GHz matching
When f
RFout
= 1.9 GHz matching
When f
RFout
= 2.4 GHz matching
From previous stage
From local oscillator
Strip line
To next stage
(RF filter, etc.)
From power
supply
From previous stage
From local oscillator
Strip line
To next stage
(RF filter, etc.)
From power
supply
From previous stage
From local oscillator
To next stage
(RF filter, etc.)
From power
supply
Strip line
1 000 pF
1 000 pF
6
5
4
RF
output
V
CC
GND
IF
input
GND
LO
input
1
2
3
100 pF
C
1
L
1
C
3
C
2
L
2
100 pF
1 000 pF
1 000 pF
10 pF
10 pF
10 pF
6
5
4
RFoutput
V
CC
GND
IFinput
GND
LOinput
1
2
3
100 pF
C
1
L
1
C
1
L
1
C
3
C
2
L
2
100 pF
1 000 pF
1 000 pF
6
5
4
RFoutput
V
CC
GND
IFinput
GND
LOinput
1
2
3
100 pF
C
3
C
2
L
2
100 pF
Remarks 1.
Determine L
1
and C
1
according to the frequency and the RF port's S-parameter, including the strip line
length on the mounting surface.
2.
High-pass type output matching is used for f
RFout
= 0.83 GHz and low-pass type output matching is used
for f
RFout
= 1.9 GHz and f
RFout
= 2.4 GHz.
4.
Determine whether or not matching is required for input according to how the input relates to the
previous stage's impedance.
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