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| 型号： | PMB2208 |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | Mixer and IF Vector Modulator |
| 中文描述： | 混频器和中频矢量调制器 |
| 文件页数： | 23/27页 |
| 文件大小： | 766K |
| 代理商： | PMB2208 |
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Reference
5 - 7
PMB 2208
preliminary
Wireless Components
Confidential
Specification, August 1999
5.2
S-Parameters and Input/Output Impedances
The S-parameters provided in this section are based on measurements at the supply
voltage of VCC = 3.6V. Via the internal bias tees of the NWA the capacitive coupling is
done and the open collector pins are connected to VCC.
The S-parameters have to be considered as application hints.
The input/output impedances are calculated from these parameters. The
impedances are given as equivalent circuit with lumped elements for differential
and single ended in-/outputs.
As equivalent circuit for these in-/outputs a resistor Rp parallel to a capacitance
Cp is derived:
S_Parameter.wmf
The IF-Input impedance is given as a equivalent circuit of a resistor Rs serial to
a inductivity Ls:
S_Parameter_2.wmf
Table 5-4
Test
Frequency
[MHz]
Port 1
Port 2
Output levels
RF-Input impedance
50 - 2500
RF
RFX
-5 dBm
IF-Input impedance
50 - 2500
IF
IFX
-30 dBm
MO-Output impedance
50 - 2500
MO
MOX
-30 dBm
single
ended
Rps
Cps
differential
Rpd
Cpd
single
ended
Rss
Lss
differential
Rsd
Lsd
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