TDA4321XS Datasheet, PDF (15/16 Pages) List of Unclassifed Manufacturers – FM-IF IC with counter output, analog STS, field strength indicator, noise detector and mute setting

FS: 04/93
SIEMENS AG
Page 15
IC-SPECIFICATION
TDA 4321 XS
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Diagrams
V_F (V)
V_F Characteristic
D3
5
2.5 ^{∆ VF}
V_Fmax
V_Fmin
-80
-60
M1
∆ V_iIF
-40
-20
M2
0 U_iIF (dBm)
Test points to determine V_F temperature drift
V_F -Temperatur - Drift : It is determined within -40 bis +85 °C
U_{F (M2)} - U_{F (M1)}
Slope : m = –––––––––––––––––– (at 25 °C )
40 dB
The tolerance range of the V_F temperature drift is determined
by two parallel lines:
V_Fmax = V_F (M1) + m (M + 60 dB+ 3dB)
V_Fmin = V_F (M1) + m (M + 60 dB - 3dB)
The V_F values for temperatures between -40 to +85 °C within
the V_F dynamic range (M_VFmin≤VF≤M_VFmax) must be
inside the predetermined tolerance field:
V_Fmin≤ VF ( M ) ≤ V_Fmax
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HL DOK
V66047-S1665-B100-G1
5.10.98