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參數(shù)資料
| 型號： | μPC8129GR |
| 廠商： | NEC Corp. |
| 英文描述： | Silicon MMIC Frequency DownConverter(下變頻轉(zhuǎn)換器芯片) |
| 中文描述： | 硅單片頻率下變頻（下變頻轉(zhuǎn)換器芯片） |
| 文件頁數(shù)： | 8/28頁 |
| 文件大?。?/td> | 587K |
| 代理商： | ΜPC8129GR |
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Data Sheet P12781EJ2V0DS00
8
μ
PC8129GR
1
2
18
PIN EXPLANATION
Pin No.
Symbol
Supply
Voltage
(V)
Pin
Voltage
Typ. (V)
@V
CC
= 3 V
Description
Equivalent Circuit
18
RFout
V
CC
–
RF output from Up-Converter.
This pin is open collector output.
1
UpCon in
–
2.2
IF input for Up-converter.
This pin is high impedance
input.
2
UpCon inb
–
2.2
Bypass of IF input.
Grounded through external
capacitor.
3
MODout
–
1.9
Output from modulator.
This is emitter follower output.
4
I
V
CC
/2
–
Input for I signal. This input
impedance is about 200 k
.
Relations between amplitude
and V
CC
/2 bias of input signal
are following.
5
Ib
V
CC
/2
–
Input for I signal. This input
impedance is about 200 k
.
V
CC
/2 biased DC signal should
be input.
6
Qb
V
CC
/2
–
Input for Q signal. This input
impedance is about 200 k
V
CC
/2 biased DC signal should
be input.
7
Q
V
CC
/2
–
Input for Q signal. This input
impedance is about 200 k
.
Relations between amplitude
and V
CC
/2 bias of input signal
are following.
Note
In the case of that I/Q input signals are single ended.
Of course, I/Q signal inputs can be used either single endedly or differentially with proper terminations.
Note
V
CC
/2
(V)
Signal Level
(mV
P-P
)
≥
1.35
≥
1.5
≥
1.75
≤
400
≤
600
≤
1000
V
CC
/2
(V)
Signal Level
(mV
P-P
)
≥
1.35
≥
1.5
≥
1.75
≤
400
≤
600
≤
1000
Note
3
4
5
6
7
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