INTEGRATED CIRCUITS DATA SHEET TDA1596T IF amplifier/demodulator for FM radio receivers Product specification File under Integrated Circuits, IC01 April 1991
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T GENERAL DESCRIPTION The TDA1596T provides IF amplification, symmetrical quadrature demodulation and level detection for quality home and car FM radio receivers and is suitable for both mono and stereo reception. It may also be applied to common front-ends, stereo decoders and AM receiver circuits.
IF amplifier/demodulator for FM radio receivers April 1991 3 Fig.1 Block diagram and application circuit. (1) Connecting pin 13 to ground is only allowed for measuring the current at pin 16. It is not for use in application. (2) In the FM, mute-on condition the unweighted level detector output is available from pin 3. In the FM, mute-off condition the variable resistor at pin 3 can be adjusted for minimum 2nd harmonic distortion at pin 4.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T PINNING 1 VP supply voltage 2 LVA level voltage adjustment 3 ULV unweighted level output/K2 adjustment 4 AF0 AF output 5 Vref reference voltage output 6 WLV weighted level voltage output 7 MSW mode switch 8 DDV detune detector voltage 9 n.c. not connected 10 DMI1 demodulator input 1 11 DMI2 demodulator input 2 12 n.c.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T FUNCTIONAL DESCRIPTION Limiter-amplifier This has five stages of IF amplification using balanced differential limiter-amplifiers with emitter--follower coupling. Decoupling of the stages from the voltage supply lines and an internal high-ohmic DC feed-back loop give a very stable IF performance. The amplifier gain is virtually independent from temperature changes.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) SYMBOL PARAMETER MIN. MAX. UNIT VP = V1-17 Supply voltage (pin 1) −0.3 +16 V V5-17 Reference voltage range (pin 5) −0.3 + 10 V V2-17 Level adjustment range (pin 2) −0.3 + 10 V V7-17 Mode switch voltage range (pin 7) −0.3 VP V V13-17 Control input voltage range (pin 13) − +6 V −0.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T CHARACTERISTICS f = 10.7 MHz; VP = V1-17 = 8.5 V; VI = V20 (rms) = 1 mV; Tamb = 25 °C; measured in the circuit of Fig.3; tuned circuit at pins 10, 11 aligned for symmetrical stop pulses; all voltages are referred to ground (pin 17), unless otherwise specified SYMBOL PARAMETER MIN. TYP. MAX. UNIT Supplies VP = V1 Supply voltage 7.5 8.5 12.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers SYMBOL TDA1596T PARAMETER MIN. TYP. MAX. UNIT Attack and decay (pin 16) Pin 13 connected to ground * +I16 charge current − 8 − µA −I16 discharge current − 120 − µA Pin 13 connected to Vref +I16 charge current − 100 − µA −I16 discharge current − 120 − µA Level detector ∆V 6 -------------V 6 ∆T Dependence of output voltage on temperature − 3.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers SYMBOL TDA1596T PARAMETER MIN. TYP. MAX. UNIT Tuning-stop detector (Figs 10 and 11) Stop-0: detuning at V20(rms) = 10 mV +∆f for V15 ≥ 3.5 V − − 10 kHz +∆f for V15 ≤ 0.3 V 18 − − kHz Stop-1: detuning at V20(rms) = 10 mV −∆f for V14 ≥ 3.5 V − − 10 kHz −∆f for V14 ≤ 0.3 V 18 − − kHz 250 − − µV − − 50 µV − − 0.3 V − − 1.4 V − 2.8 − V − − 2.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T OPERATING CHARACTERISTICS f = 10.7 MHz; VI = V20(rms) = 1 mV; deviation (∆f) = 22.5 kHz; modulation frequency (fm) = 400 Hz; de-emphasiss (pin 4) = 50 µs; test circuit as per Fig.3; tuned circuit (QL = 19) aligned for symmetrical stop pulses; Tamb = + 25 °C; unless otherwise specified SYMBOL PARAMETER MIN. TYP. MAX.
Philips Semiconductors Product specification TDA1596T Fig.3 Test circuit.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T Fig.4 Printed-circuit board component side, showing component layout. For circuit diagram see Fig.3. Fig.5 Printed-circuit board showing track side.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T Fig.6 Typical curve of internal attenuation showing the relationship between the mute attenuator control voltage (pin 16) and mute attenuation; I2 = I7 = 0 mA Fig.7 Weighted field strength output voltage (pin 6) as a function of input voltage (pin 20); R6-17 ≥ 10 kΩ; I2 = I7 = 0 mA.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T Fig.8 Weighted field strength output voltage (pin 6) as a function of detuning; R6-17 ≥ 10 kΩ; I2 = I7 = 0 mA; V20 = 10 mV. Fig.9 Adjustment range of weighted field strength output voltage (pin 6) with level shift control (pin 2); R6-17 ≥ 10 kΩ; I7 = 0 mA.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T (a) STOP-0. (b) STOP-1. Fig.10 STOP-0 and STOP-1 output voltages as a function of detuning, measured at V20 = 10 mV.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T Fig.11 STOP-0 or STOP-1 output voltages as a function of input voltage at pin 20. Fig.12 Switch levels at pin 7.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T (a) mode switch at FM, mute-on (b) mode switch at FM, mute-off Fig.13 Audio signal (∆f = 22.5 kHz; fm = 1 kHz) and noise as functions of input voltage at pin 20; measured with 50 µs de-emphasis.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T Fig.14 Dynamic mute attenuation as a function of frequency deviation for modulation frequencies of 40, 60, 80 and 100 kHz. Fig.15 THD as a function of detuning, mode switch at FM, mute-on position; ∆f = 75 kHz; fm = 1 kHz; V20(rms) = 10 mV.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T (a) mode switch at FM, mute-on (b) mode switch at FM, mute-off Fig.16 Typical curves showing AM suppression for an input signal having frequency modulation at ∆f = 22.5 kHz and fm = 1 kHz, and amplitude modulation of 30% at a frequency of 400 Hz; de-emphasis time = 50 µs and bandwidth = 250 Hz to 15 kHz.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T 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.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T SOLDERING Wave soldering Introduction Wave soldering techniques can be used for all SO packages if the following conditions are observed: There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board.
Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1596T DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal 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.
