參數(shù)資料
型號(hào): TUA4307
廠商: INFINEON TECHNOLOGIES AG
元件分類: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP80
封裝: MQFP-80
文件頁數(shù): 38/48頁
文件大?。?/td> 952K
代理商: TUA4307
Reference
5 - 12
TUA 4307
Wireless Components
Specification, September 1999
5.4 Diagrams
5.4.1
Diagram D1
VF - Dynamic :
The dynamic range of VF voltage is determined by the test points M1 through
M4 as follows:
M1: test point (at ViIF= 50 dBV) supplies VF (M1)
M2: test point (at ViIF= 90 dBV) supplies VF (M2)
M3: test point (at ViIF= 20 dBV) supplies VF (M3)
M4: test point (at ViIF=120 dBV) supplies VF (M4)
Hence follows :
VF (M4) - VF (M2)
MVFmax:= 90 dBV+ –––––––––––––––––––– × 40 dB
VF (M2) - VF (M1)
VF (M1) - VF (M3)
MVFmin:= 50 dBV - ––––––––––––––––– × 40 dB
VF (M2) - VF (M1)
VF - Dynamic = MVFmax - MVFmin
VF Characteristic
30
50
70
90
110
VF (V)
VF - Dynamic
M 2
M 1
M 3
M 4
MVFmin
MVFmax
D1
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