tda1072at-v4 NXP Semiconductors, tda1072at-v4 Datasheet - Page 13
tda1072at-v4
Manufacturer Part Number
tda1072at-v4
Description
Am Receiver Circuit
Manufacturer
NXP Semiconductors
Datasheet
1.TDA1072AT-V4.pdf
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Philips Semiconductors
March 1989
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
at the aerial input, V'
Wanted signal (V'
Unwanted signal (V'
Effective selectivity of input tuned circuit = 21 dB.
Fig.11 Input circuit to show cross-modulation suppression (see Fig.10).
aew
aeu
aew
, V
, V
rfw
, V'
rfu
): f
aeu
): f
i
= 1 MHz; f
are signals at the unloaded output of the aerial.
i
= 900 kHz; f
m
= 400 Hz; m = 30%.
m
= 400 Hz; m = 30%.
13
O(AF)
/unwanted V
O(AF)
= 20 dB; V
rfw
Product specification
TDA1072AT
, V
rfu
are signals
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