參數(shù)資料
型號(hào): P11997EJ2V0AN00
英文描述: uPC2757. uPC2758. and uPC8112. 3-V Power Supply. 1.9-GHz Frequency Down-converter ICs for Mobile Communication
中文描述: uPC2757。 uPC2758。和uPC8112。 3 - V單電源供電。 1.9 - GHz的頻率下,移動(dòng)通信轉(zhuǎn)換器IC
文件頁(yè)數(shù): 18/51頁(yè)
文件大小: 265K
代理商: P11997EJ2V0AN00
Application Note P11997EJ2V0AN00
18
(b) When Z
L
= 100
START 1.075420000 GHz
STOP 2.075420000 GHz
MARKER 1
1.57542 GHz
S
11
REF 1.0 Units
1
74.668
–42.637
hp
START 1.075420000 GHz
STOP 2.075420000 GHz
CENTER
1.57542 GHz
S
11
REF 0.0 dB
10.0 dB/
–8.5229 dB
hp
1
C
log MAG
1
Figure 4-3. Input Port External Circuit Example (Example of RF Input of
μ
PC2757/58) (1/2)
Measuring circuit <1> (Matches with front stage output impedance)
1 000 pF
C
1
C
2
L
3
2
1
4
5
6
LO
in
GND
RF
in
PS
V
CC
IF
out
(Top View)
Signal generator
2 900 pF
3 V
2 900 pF
POWER
SAVE
50
Signal generator
50
50
Spectrum analyzer
Measuring circuit <2> (50-
termination with DC cut and 50-
front stage output)
1 000 pF
1 000 pF 1 000 pF
3
2
1
4
5
6
LO
in
GND
RF
in
PS
V
CC
IF
out
(Top View)
Signal generator
2 900 pF
3 V
2 900 pF
POWER
SAVE
50
51
Signal generator
50
50
Spectrum analyzer
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