TDA1072AT datasheet(10/21 Pages) PHILIPS

10 / 21 page

March 1989

10

Philips Semiconductors

Product speciﬁcation

AM receiver circuit

TDA1072AT

APPLICATION INFORMATION

Fig.2 Oscillator circuit using quartz crystal; centre frequency = 27 MHz.

(1) Capacitor values depend on crystal type.

(2) Coil data: 9 windings of 0.1 mm dia laminated Cu wire on TOKO coil set 7K 199CN; Qo = 80.

Fig.3

AF output as a function of RF input in the

circuit of Fig.1; fI = 1 MHz; fm = 400 Hz;

m = 30%.

Fig.4

Total harmonic distortion and S

+N/N as

functions of RF input in the circuit of Fig.1;

m = 30% for (S

+N)/N curve and m = 80% for

THD curve.

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