參數(shù)資料
型號(hào): PMB2349
廠商: INFINEON TECHNOLOGIES AG
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 2800 MHz, PQCC24
封裝: PLASTIC, VQFN-24
文件頁(yè)數(shù): 27/35頁(yè)
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. VCC 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=01b - RiRes=11.2MHz
RiAmp=10b - RiRes=19.5MHz
RiAmp=11b - RiRes=28.2MHz
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