U4062B Datasheet, PDF (13/21 Pages) TEMIC Semiconductors – HF Front End for Car Radios and HiFi Receivers

1.0
V_S=15V
0.8
10V
0.6
7V
0.4
0.2
0
0.5 0.7
9510431
0.9
1.1
V₁₆ ( V )
1.3 1.5
Figure 30. V₁₀ vs. V₁₆
U4062B
1.0
0.8
0.6
V_S=7V 15V
10V
0.4
0.2
0
–0.2 0 0.2 0.4 0.6 0.8 1.0 1.2
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-I₁₆ ( mA )
Figure 31. V₁₀ vs. –I₁₆
IF Preamplifier
I_L1, I_L2 = Insertion loss of the RF transformers
Power gain G_F = 20 log (2 V_oIF/V_iRF) + I_L1 (dB) + I_L2 (dB)
V_iIF15 (dBmV) = V_iIF (dBmV) – I_L1 (dB) + 6
V_oIF3 (dBmV) = V_oIF (dBmV) – I_L2 (dB) + 6
Rev. A1, 07-Dec-98
Figure 32. Test circuit
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