INTEGRATED CIRCUITS DATA SHEET TDA1576T FM/IF amplifier/demodulator circuit Product specification Supersedes data of February 1991 File under Integrated Circuits, IC01 1998 Nov 18
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T FEATURES GENERAL DESCRIPTION • Fully balanced 4-stage limiting IF amplifier The TDA1576T is a monolithic integrated FM/IF amplifier circuit for use in mono and stereo FM-receivers of car radios or home sets.
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Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T PINNING SYMBOL PIN DESCRIPTION VP 1 positive supply voltage CPS 2 smoothing capacitor of power supply IF1 3 IF signal to resonant circuit RES1 4 resonant circuit input 1 FMON 5 FM-ON, standby switch RES2 6 resonant circuit input 2 IF2 7 IF signal to resonant circuit VoAF1 8 AF output voltage 1 (0° phase) VoAF2 9 AF output voltage 2 (180° phase) n.c. 10 not connected RES2 6 IF2 7 n.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER MIN. MAX.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T CHARACTERISTICS VP = 8.5 V; fIF = 10.7 MHz; RS = 60 Ω; fm = 400 Hz with ∆f = ±22.5 kHz; 50 µs de-emphasis (C8-9 = 6.8 nF); Tamb = 25 °C and measurements taken in Fig.1; unless otherwise specified. The demodulator circuit is adjusted at minimum second harmonic distortion for ViIF = 1 mV and a deviation ∆f = ±75 kHz. SYMBOL PARAMETER VP supply voltage (pin 1) IP supply current CONDITIONS V5 = V9 = V13 = 0 MIN.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit SYMBOL TDA1576T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Field strength output; see Fig.4 V15 output voltage ViIF = 0 0 0.1 0.25 V ViIF = 1 mV (RMS) 1.1 1.5 1.9 V ViIF = 250 mV (RMS) 3.2 3.6 4.1 V S control steepness − 0.85 − V/dec R15 output resistance − 150 200 Ω ∆V ------∆T dependence on temperature ∆V 15 V iIF = ---------------------∆T × V 15 − 0.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit SYMBOL TDA1576T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Standby switch; see Fig.9 V5 input voltage for FM on 2.4 2.5 − V − 2.9 3 V V19 = 0.3 V − 350 − mV V5 = 0 to 2 V − − −100 µA V5 = 3.5 to 15 V − − 1 µA FM on (3.5VBE) − 7 − mV/K FM off (5VBE) − 10 − mV/K proportional to V1 − 3VBE 80 210 400 mV 5.8 8.3 10.8 kΩ input voltage for FM off V 3, 7 ----------------------- = 0.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T MEH166 20 handbook, full pagewidth V8, V9 (dB) S+N 0 −20 −40 −60 N −80 10−6 Fig.3 10−5 10−4 10−3 10−2 10−1 V 1 i 17 (rms) (V) AF output voltage level on pins 8 and 9 as a function of ViIF at VP = 8.5 V; fm = 1 kHz; QL = 20 with de-emphasis. MEH143 5 handbook, full pagewidth V15 (V) 4 3 2 1 0 10−6 10−5 10−4 10−3 10−2 Fig.4 Field strength output (I16 = 0).
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T MEH144 handbook, halfpage MEH145 1 handbook, halfpage I12 V13/V14 Ri 0.5 I12 0 −1.2 V9, 12 −0.8 Fig.5 Detuning input impedance. 0.8 1.2 V9, 12 (V) MEH147 0 αVo (dB) I13 (mA) −20 0.5 −40 1.2 1 0.5 0 |V9, 12| −60 −80 0 2 4 V13 (V) 6 Fig.7 Detuning output. 1998 Nov 18 0.4 handbook, halfpage handbook, halfpage 0 0 Fig.6 Detuning curve. MEH146 1 −0.4 0 0.1 0.2 V13 /V14 Fig.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T MEH148 2 handbook, halfpage V3-7 V3-7 (max) ∆V5 1 0 0 1 2 V5 (V) 3 Fig.9 Standby switch.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T PACKAGE OUTLINE SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 D E A X c HE y v M A Z 11 20 Q A2 A (A 3) A1 pin 1 index θ Lp L 1 10 e bp detail X w M 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y mm 2.65 0.30 0.10 2.45 2.25 0.25 0.49 0.36 0.32 0.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T • Use a double-wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar wave. SOLDERING Introduction to soldering surface mount packages • For packages with leads on two sides and a pitch (e): This text gives a very brief insight to a complex technology.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T Suitability of surface mount IC packages for wave and reflow soldering methods SOLDERING METHOD PACKAGE REFLOW(1) WAVE BGA, SQFP not suitable HLQFP, HSQFP, HSOP, SMS not PLCC(3), SO, SOJ suitable suitable(2) suitable suitable suitable LQFP, QFP, TQFP not recommended(3)(4) suitable SSOP, TSSOP, VSO not recommended(5) suitable Notes 1. All surface mount (SMD) packages are moisture sensitive.
Philips Semiconductors Product specification FM/IF amplifier/demodulator circuit TDA1576T NOTES 1998 Nov 18 15
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