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DATA SHEET

Product specification
File under Integrated Circuits, IC01

August 1990

INTEGRATED CIRCUITS

TDA1574T
Integrated FM tuner for radio
receivers

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Summary of Contents for TDA1574T

Page 1: ...DATA SHEET Product specification File under Integrated Circuits IC01 August 1990 INTEGRATED CIRCUITS TDA1574T Integrated FM tuner for radio receivers ...

Page 2: ...ffered oscillator output Electronic standby switch Internal buffered mixer driving QUICK REFERENCE DATA PACKAGE OUTLINE 20 lead mini pack plastic SO20 SOT163A SOT163 1 1996 September 9 PARAMETER CONDITIONS SYMBOL MIN TYP MAX UNIT Supply voltage range pin 17 VP 7 14 V Mixer input bias voltage pins 1 and 2 V1 2 4 1 V Noise factor NF 9 dB Oscillator output voltage pin 6 V6 4 2 V Output admittance at ...

Page 3: ...ct specification Integrated FM tuner for radio receivers TDA1574T Coil data L1 TOKO MC 108 514HNE 150023S14 L 0 078 µH L2 TOKO MC 111 E516HNS 200057 L 0 08 µH L3 TOKO Coil set 7P N1 5 5 5 5 turns N2 4 turns Fig 1 Block diagram and test circuit ...

Page 4: ...e signal handling range and low oscillator radiation Oscillator The oscillator circuit uses an amplifier with a differential input Voltage regulation is achieved by utilizing the symmetrical tan h transfer function to obtain low order 2nd harmonics Linear IF amplifier The IF amplifier is a one stage differential input wideband amplifier with an output buffer Keyed AGC The AGC processor combines na...

Page 5: ...hort circuit protected to ground THERMAL RESISTANCE PARAMETER CONDITIONS SYMBOL MIN MAX UNIT Supply voltage pin 17 V17 4 14 V Mixer output voltage pins 18 and 19 V18 19 4 35 V Standby switch input voltage pin 13 V13 4 23 V Reference voltage pin 5 V5 4 7 V Total power dissipation Ptot 500 mW Storage temperature range Tstg 55 150 C Operating ambient temperature range Tamb 40 85 C From junction to am...

Page 6: ...stics Input bias voltage pins 1 and 2 V1 2 1 V Output voltage pins 18 and 19 V18 19 4 35 V Other current pins 18 and 19 I18 19 4 5 mA AC characteristics fi 98 MHz Noise figure NF 9 dB Noise figure including transforming network NF 11 dB 3rd order intercept point EMF1IP3 115 dB µV Conversion power gain note 1 GCP 14 dB Input resistance pins 1 and 2 R1 2 14 Ω Output capacitance pins 18 and 19 C18 19...

Page 7: ...perature Tamb 40 to 85 C GT 0 dB 1 dB compression point RMS value at VP 8 5 V V12 rms 750 mV at VP 7 5 V V12 rms 550 mV Signal to noise ratio RS 300 Ω S N 6 5 dB Keyed AGC DC characteristics Output voltage range pin 20 V20 0 5 VP 0 3 V AGC output current at I3 0 or V14 450 mV V20 VP 2 I20 25 50 100 µA at V3 2 V and V14 1 V V20 V15 I20 2 5 mA Narrowband threshold at V3 2 V V14 550 mV V20 1 V at V3 ...

Page 8: ...ge RMS value at RL oo CL 2 pF V9 rms 110 mV at RL 75 Ω V9 rms 30 50 mV DC output resistance R9 17 2 5 kΩ Signal purity Total harmonic distortion THD 15 dB Spurious frequencies at EMF 1 1 V RS1 50 Ω fS 35 dB Electronic standby switch pin 11 Oscillator linear IF amplifier AGC Tamb 40 to 85 C Input switching voltage for threshold ON V20 VP 3 V V13 0 2 3 V for threshold OFF V20 0 5 V V13 3 3 23 V Inpu...

Page 9: ... circuit Fig 1 at V14 0 7 V I20 0 Fig 4 Keyed AGC output voltage V20 as a function of input voltage V14 Measured in test circuit Fig 1 at V3 2 V I20 0 Fig 5 Keyed AGC output current I20 as a function of RMS input voltage V3 Measured in test circuit Fig 1 at V14 0 7 V V20 8 5 V Fig 6 Keyed AGC output voltage I20 as a function of input voltage V14 Measured in test circuit Fig 1 at V3 2 V V20 8 5 V ...

Page 10: ...ctors Product specification Integrated FM tuner for radio receivers TDA1574T Fig 7 TDA1574T application diagram Coil data L1 TOKO MC 108 N1 5 5 turns N2 1 turn L2 see Fig 1 L3 see Fig 1 1 Field strength indication of main IF amplifier ...

Page 11: ...4 8 0 o o 0 25 0 1 DIMENSIONS inch dimensions are derived from the original mm dimensions Note 1 Plastic or metal protrusions of 0 15 mm maximum per side are not included 1 1 0 4 SOT163 1 10 20 w M bp detail X Z e 11 1 D y 0 25 075E04 MS 013AC pin 1 index 0 10 0 012 0 004 0 096 0 089 0 019 0 014 0 013 0 009 0 51 0 49 0 30 0 29 0 050 1 4 0 055 0 419 0 394 0 043 0 039 0 035 0 016 0 01 0 25 0 01 0 00...

Page 12: ...ecessary to dry the paste and evaporate the binding agent Preheating duration 45 minutes at 45 C Wave soldering Wave soldering techniques can be used for all SO packages if the following conditions are observed A double wave a turbulent wave with high upward pressure followed by a smooth laminar wave soldering technique should be used The longitudinal axis of the package footprint must be parallel...

Page 13: ...oal specifications for product development Preliminary specification This data sheet contains preliminary data supplementary data may be published later Product specification This data sheet contains final product specifications Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System IEC 134 Stress above one or more of the limiting values may cause permanent...

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