參數(shù)資料
型號: PMB2349
廠商: INFINEON TECHNOLOGIES AG
英文描述: Optimized RF/IF Dual PLL Frequency Synthesizer
中文描述: 優(yōu)化射頻/中頻雙鎖相環(huán)頻率合成器
文件頁數(shù): 33/35頁
文件大小: 670K
代理商: PMB2349
Reference
5 - 13
PMB 2349
preliminary
Wireless Components
Confidential
Specification, May 2000
5.4.3
Typical Ri Sensitivity
The PLL setup is: R:50.
V
CC
is 2.7V.
Chip Mode is set to
TEST MODE FRN
. This causes the R divider output to be fed to the
SOURCE part of the chargepump (sink is switched off all time.) Therefore a resistor
which provides a current path from pin CPx to GND (CP gnd) is needed
.
SENSITIVITY S1004K2#1
- R:50 - 2V7 - Rext
- Ri Power [dBm] vs Ri Frequency [MHz] vs RiAmp
CP->6.22kOhm->Gnd - HPcounter50ohm
-65
-55
-45
-35
-25
-15
-5
5
0
5
10
15
20
25
30
35
40
RiAmp=00b - RiRes=9.0MHz - Nominal
RiAmp=10b - RiRes=19.5MHz
RiAmp=01b - RiRes=11.2MHz
RiAmp=11b - RiRes=28.2MHz
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