Philips TDA1597 Datasheet

If amplifier/demodulator for fm radio receivers

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DATA SHEET
TDA1597
IF amplifier/demodulator for FM
radio receivers
Product specification
Supersedes data of May 1994
File under Integrated Circuits, IC01
INTEGRATED CIRCUITS
1997 Feb 27

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Summary of Contents for Philips TDA1597

  • Page 1 DATA SHEET TDA1597 IF amplifier/demodulator for FM radio receivers Product specification Supersedes data of May 1994 File under Integrated Circuits, IC01 INTEGRATED CIRCUITS 1997 Feb 27...
  • Page 2 20 leads; body width 7.5 mm 1997 Feb 27 GENERAL DESCRIPTION The TDA1597 provides IF amplification, symmetrical quadrature demodulation and level detection for quality home and car FM radio receivers and is suitable for mono and stereo reception. It may also be applied to common front-ends, stereo decoders and AM receivers circuits.
  • Page 3: Block Diagram

    Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 BLOCK DIAGRAM pagewidth full handbook, 1997 Feb 27...
  • Page 4 Philips Semiconductors IF amplifier/demodulator for FM radio receivers PINNING SYMBOL DIP18 MODE n.c. DEMI1 DEMI2 n.c. MUTE LFB1 LFB2 handbook, halfpage V oAF V ref TDA1597 MODE DEMI1 MED830 Fig.2 Pin configuration (DIP version). 1997 Feb 27 SO20 supply voltage (+8.5 V)
  • Page 5: Functional Description

    Philips Semiconductors IF amplifier/demodulator for FM radio receivers FUNCTIONAL DESCRIPTION The limiter amplifier has five stages of IF amplification using balanced differential limiter amplifiers with emitter follower coupling. Decoupling of the stages from the supply voltage line and an internal high-ohmic DC feedback loop gives a very stable IF performance.
  • Page 6 Philips Semiconductors IF amplifier/demodulator for FM radio receivers THERMAL CHARACTERISTICS SYMBOL thermal resistance from junction to ambient in free air th j-a SOT102-1 SOT163-1 CHARACTERISTICS = 8.5 V; T = 25 C; FM-MUTE-ON (I = 10 mV (RMS) at pin 20; de-emphasis of 50 s; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses;...
  • Page 7 Philips Semiconductors IF amplifier/demodulator for FM radio receivers SYMBOL PARAMETER External muting muting voltage at I steepness of control voltage Internal mute ; note 1 mute voltage current for capacitor (pin 16) charge current discharge current charge current discharge current...
  • Page 8: Operating Characteristics

    Philips Semiconductors IF amplifier/demodulator for FM radio receivers OPERATING CHARACTERISTICS = 7.5 to 12 V; T = 25 C; FM-MUTE-ON (I = 10 mV (RMS) at pin 20; de-emphasis of 50 s; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses;...
  • Page 9 Philips Semiconductors IF amplifier/demodulator for FM radio receivers SYMBOL PARAMETER Tuning stop detector detuning frequency for STOP-0 STOP-0 (pin 15) detuning frequency for STOP-1 STOP-1 (pin 14) dependence on input voltage for 20(rms) STOP-0 and STOP-1 (RMS value) internal low-pass resistance of...
  • Page 10 IF = 10.7 MHz 22 nF (18) (17) ( 8.5 V) 100 nF 220 k The pin numbers given in parenthesis refer to the TDA1597. switch S4 (MODE): (1) FM-MUTE-OFF. (2) FM-MUTE-ON. (3) FM-OFF. 1997 Feb 27 V mute STOP-0...
  • Page 11 Philips Semiconductors IF amplifier/demodulator for FM radio receivers (dB) (1) Audio signal. (2) Noise. Fig.5 FM-MUTE-ON: Audio signal and noise as functions of the input signal V = 1 kHz; de-emphasis 50 s. handbook, full pagewidth (dB) (1) Audio signal.
  • Page 12 Philips Semiconductors IF amplifier/demodulator for FM radio receivers (dB) (1) Audio signal. (2) Spurious AM signal. Fig.7 FM-MUTE-ON: Typical AM suppression as a function of the input signal V = 1 kHz; AM with f handbook, full pagewidth (dB) (1) Audio signal.
  • Page 13 Philips Semiconductors IF amplifier/demodulator for FM radio receivers handbook, full pagewidth V 14, 15 (12, 13) Fig.9 STOP-0 and STOP-1 output voltage dependent on input signal V handbook, halfpage V 14(12) Fig.10 STOP-1 output voltage dependent on = 10 mV (RMS) (pin 20).
  • Page 14 Philips Semiconductors IF amplifier/demodulator for FM radio receivers handbook, full pagewidth V 16(14) (1) V = 0 V. (2) I = 0 mA. (3) V Fig.12 External mute voltage V handbook, full pagewidth V 16(14) Fig.13 Mute voltage V 1997 Feb 27...
  • Page 15 Philips Semiconductors IF amplifier/demodulator for FM radio receivers (1) V = 0 V. (2) I = 0 mA. (3) V Fig.14 Control voltage V handbook, full pagewidth Fig.15 Control voltage V 1997 Feb 27 dependent on input signal V dependent on detuning; V Product specification...
  • Page 16 Philips Semiconductors IF amplifier/demodulator for FM radio receivers (1) V = 0 V. (2) I = 0 mA. (3) V Fig.16 Level output voltage V handbook, full pagewidth Fig.17 Total harmonic distortion dependent on detuning at FM-MUTE-ON; f = 75 kHz; f = 10 mV.
  • Page 17: Application Information

    Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 APPLICATION INFORMATION 1997 Feb 27...
  • Page 18 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 1997 Feb 27...
  • Page 19: Package Outlines

    Philips Semiconductors IF amplifier/demodulator for FM radio receivers PACKAGE OUTLINES DIP18: plastic dual in-line package; 18 leads (300 mil) pin 1 index DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT max. min. max. 1.40 0.51 1.14 0.055 inches 0.19...
  • Page 20 Philips Semiconductors IF amplifier/demodulator for FM radio receivers SO20: plastic small outline package; 20 leads; body width 7.5 mm pin 1 index DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT max. 0.30 2.45 2.65 0.25 0.10 2.25 0.012...
  • Page 21 Philips Semiconductors IF amplifier/demodulator for FM radio receivers SOLDERING Plastic dual in-line packages Y DIP OR WAVE The maximum permissible temperature of the solder is 260 C; this temperature must not be in contact with the joint for more than 5 s. The total contact time of successive solder waves must not exceed 5 s.
  • Page 22: Life Support Applications

    Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
  • Page 23 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1597 NOTES 1997 Feb 27...
  • Page 24 Tel. +30 1 4894 339/239, Fax. +30 1 4814 240 Hungary: see Austria India: Philips INDIA Ltd, Shivsagar Estate, A Block, Dr. Annie Besant Rd. Worli, MUMBAI 400 018, Tel. +91 22 4938 541, Fax. +91 22 4938 722 Indonesia: see Singapore Ireland: Newstead, Clonskeagh, DUBLIN 14, Tel.

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