參數(shù)資料
型號: FX980L6
廠商: CML MICROSYSTEMS PLC
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 56/86頁
文件大?。?/td> 821K
代理商: FX980L6
TETRA Baseband Processor
FX980
1997 Consumer Microcircuits Limited
6
D/980/3
1.4
External Components
Rx Inputs
When using the internal anti-alias filter, the following is suggested
Example values:
R1 = 220
C1 = 1.5nF (R1, C1 precise values are not critical) (-3dB at 240kHz)
R2 = 408
C2 = 3.9nF (R2 x C2 time constant should be preserved) (-3dB at 50kHz)
When not using the internal anti alias filter, it is suggested that the user should follow the guidelines in Section
1.5.3.1. In both cases, there should be at least one filter pole close to the chip inputs.
Figure 2a Recommended External Components - Rx Inputs
Tx Outputs
Example values:
R3 = 220
C3 =
1nF
Decoupling capacitors should be employed as detailed in Section 1.5.1
Figure 2b Recommended External Components - Tx Outputs
AGC
IRXP
IRXN
QRXP
QRXN
Filter 1
R2
C2
R2
C2
R1
R3
R1
C1
R1
C3
ITXP
ITXN
QTXP
QTXN
R3
C3
R3
C3
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