tda1072a NXP Semiconductors, tda1072a Datasheet
tda1072a
Available stocks
Related parts for tda1072a
tda1072a Summary of contents
Page 1
... DATA SHEET TDA1072A AM receiver circuit Product specification File under Integrated Circuits, IC01 INTEGRATED CIRCUITS May 1984 ...
Page 2
... AM receiver circuit GENERAL DESCRIPTION The TDA1072A integrated AM receiver circuit performs the active and part of the filtering functions radio receiver intended for use in mains-fed home receivers and car radios. The circuit can be used for oscillator frequencies MHz and can handle r.f. signals up to 500 mV. R.F. radiation and sensitivity to interference are minimized by an almost symmetrical design ...
Page 3
... Philips Semiconductors AM receiver circuit (1) Coil data: TOKO sample no. 7XNS-A7523DY N1/N2 = 12/32; Q Filter data 700 3-4 Fig.1 Block diagram and test circuit (connections shown in broken lines are not part of the test circuit). May 1984 = Product specification TDA1072A ...
Page 4
... If the field strength information is not needed, R Standby switch This switch is primarily intended for AM/FM band switching. During standby mode the oscillator, mixer and a.f. preamplifier are switched off. Short-circuit protection All pins have short-circuit protection to ground. May 1984 L(9) 4 Product specification TDA1072A . An extra 11-16 can be omitted. L(10) can be omitted. ...
Page 5
... Fig.1; if SYMBOL MIN. TYP 7,5 8,5 13- 15- 5,5 15- 15- 15- 15-16 500 6 6 1,2 30 500 TDA1072A 20 V 875 0 200 150 C 125 C 80 K/W MAX. UNIT mA ...
Page 6
... V 4,2 11- 0,5 11-16 V 0,7 10-16 V 320 10-16(p-p) R 170 10 I 10(peak 2,0 3-16 4-16 R 2,4 3 3-4 6- 3-4 V 130 o(af) V 310 o(af 9-16 V 2,5 2,8 9-16 R 1,5 L(9) Product specification TDA1072A MAX. UNIT 60 MHz 150 mV 200 3 150 mV 3 ...
Page 7
... o(af) V o(af) d tot d tot ( SYMBOL MIN. TYP. 0 2-16 3,5 2- SYMBOL MIN. TYP. 1,5 15 150 30 500 700 900 86 91 130 240 310 0,5 1 N)/ Product specification TDA1072A MAX. UNIT 2 200 MAX. UNIT 390 ...
Page 8
... Coil data: 9 windings of 0,1 mm dia laminated Cu wire on TOKO coil set 7K 199CN; Q Fig.2 Oscillator circuit using quartz crystal; centre frequency = 27 MHz. May 1984 SYMBOL MIN. 2if 3if 1(osc) I 1(2osc) 80 Product specification TDA1072A TYP. MAX. UNIT 1,1 A ...
Page 9
... Total harmonic distortion as a function of modulation frequency at V measured in the circuit of Fig.1 with C May 1984 Fig.4 = 400 Hz and 2,2 F. 7-16(ext) 9 Product specification TDA1072A Total harmonic distortion and (S N)/N as functions of r.f. input in the circuit of Fig. 30% for (S N)/N curve and m = 80% for THD curve mV 80%; i ...
Page 10
... Fig.6 Indicator driver voltage as a function of r.f. input in the circuit of Fig.1. May 1984 Fig.7 Fig.8 Car radio application with inductive tuning. 10 Product specification TDA1072A Typical frequency response curves from Fig.1 showing the effect of filtering as follows: with i.f. filter with a.f. filter; with i.f. and a.f. filters. ...
Page 11
... Effective selectivity of input tuned circuit = 21 dB. May 1984 /Unwanted V o(af) are signals at the unloaded output of the aerial MHz 400 Hz 30%. rfw 900 kHz 400 Hz 30%. rfu Product specification TDA1072A = 20 dB are signals at the o(af) rfw rfu ...
Page 12
... Philips Semiconductors AM receiver circuit Fig.11 Input circuit to show cross-modulation suppression (see Fig.10). Fig.12 Oscillator amplitude as a function of pin 11, 12 impedance in the circuit of Fig.8. May 1984 12 Product specification TDA1072A ...
Page 13
... Philips Semiconductors AM receiver circuit Fig.13 Total harmonic distortion and (S N)/N as functions of r.f. input using the circuit of Fig.8 with that of Fig.1. Fig.14 Forward transfer impedance as a function of intermediate frequency for filters shown in Fig.15; centre frequency = 455 kHz. May 1984 13 Product specification TDA1072A ...
Page 14
... Philips Semiconductors AM receiver circuit Fig.15 I.F. filter variants applied to the circuit of Fig.1. For filter data, refer to Table 1. May 1984 14 Product specification TDA1072A ...
Page 15
... Philips Semiconductors AM receiver circuit May 1984 15 Product specification TDA1072A ...
Page 16
... Philips Semiconductors AM receiver circuit Fig.16 Printed-circuit board component side, showing component layout. For circuit diagram see Fig.1. May 1984 16 Product specification TDA1072A ...
Page 17
... Philips Semiconductors AM receiver circuit May 1984 Fig.17 Printed-circuit board showing track side. 17 Product specification TDA1072A ...
Page 18
... Philips Semiconductors AM receiver circuit May 1984 18 Product specification TDA1072A ...
Page 19
... May 1984 scale (1) ( 1.40 0.53 0.32 21.8 6.48 1.14 0.38 0.23 21.4 6.20 0.021 0.013 0.055 0.86 0.26 0.015 0.009 0.84 0.045 0.24 REFERENCES JEDEC EIAJ MO-001AE 19 Product specification TDA1072A 3.9 8.25 9.5 2.54 7.62 3.4 7.80 8.3 0.15 0.32 0.37 0.10 0.30 0.31 0.13 0.33 EUROPEAN PROJECTION SOT38-1 ( max ...
Page 20
... Philips customers using or selling these products for use in such applications their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. May 1984 ). If the printed-circuit board has been pre-heated, forced cooling may stg max 20 Product specification TDA1072A ...