tda1072a NXP Semiconductors, tda1072a Datasheet - Page 11

• Manufacturer Part Number: tda1072a
• Description: Am Receiver Circuit
• Manufacturer: NXP Semiconductors

Philips Semiconductors
May 1984
AM receiver circuit
Fig.10 Suppression of cross-modulation as a function of input signal, measured in the circuit of Fig.8 with the input
circuit as shown in Fig.11. Curve is for Wanted V
aerial input, V'
Wanted signal (V'
Unwanted signal (V'
Effective selectivity of input tuned circuit = 21 dB.
Fig.9 A.F. output as a function of r.f. input using the circuit of Fig.8 with that of Fig.1.
aew
, V'
aew
aeu
aeu
, V
, V
rfw
are signals at the unloaded output of the aerial.
rfu
): f
): f
i
= 1 MHz; f
i
= 900 kHz; f
m
= 400 Hz; m = 30%.
m
= 400 Hz; m = 30%.
11
o(af)
/Unwanted V
o(af)
= 20 dB; V
rfw
, V
rfu
Product specification
are signals at the
TDA1072A