Philips TDA1596T User's Manual
Contents
1. 12 15 0 mA 7221700 He LLLI 1076 10 5 1074 1073 107 Fig 7 Weighted field strength output voltage pin 6 as a function of input voltage pin 20 gt 10 lo 15 0 April 1991 13 Philips Semiconductors Product specification IF amplifier demodulator for FM radio TDA1596T receivers 72811771 mismas ca SRE ITI eel tT TE TT ET 1 k WINE HEN NEUEN 0 300 200 100 0 100 200 300 detune kHz Fig 8 Weighted field strength output voltage pin 6 as a function of detuning Rg 47 gt 10 12 15 0 mA V20 10 mV 7221705 M CEU Mb d U Hl I III L I T TITLE m jill E EH c i E ERE l LLEGUE ZE 0 10 6 10 5 107 10 3 10 2 107 1 V20 rms Fig 9 Adjustment range of weighted field strength output voltage pin 6 with level shift control 2 Re 17 gt 10 15 0 mA 1991 14 Philips Semiconducto2. Product specification IF amplifier demodulator for FM radio TDA1596T receivers 7221708 RDP Pese sen TTTTIT va m Hem PO 0072 Hp TT LI HUI EHE I lll ET THEE PNE HE LL eem 10 6 10 5 1074 10 3 10 2 10 1 40 mi __ HH ma 722170 _ EHI M HIM A AA EHI HAE A I AL TONE ul UJ L EEUU LES ELEME 0201111 L 11 ll EHI adr LII MR ai LIC LIL ENT 10 8 10 5 1074 1073 10 2 10 1 1 60 his b mode switch at FM mute off Fig 16 Typical curves showing AM suppression for an input signal having frequency modulation at Af 22 5 kHz and f 1 kHz and amplitude modulation of 30 at a frequency of 400 Hz de emphasis time 50 us bandwidth 250 Hz to 15 kHz April 1991 19 Philips Semiconductors Product specification IF amplifier d
3. after the adhesive is cured Maximum permissible solder temperature is 260 and maximum duration of package immersion in solder is 10 seconds if cooled to less than 150 C within 6 seconds Typical dwell time is 4 seconds at 250 A mildly activated flux will eliminate the need for removal of corrosive residues in most applications Repairing soldered joints Fix the component by first soldering two diagonally opposite end leads Use only a low voltage soldering iron less than 24 V applied to the flat part of the lead Contact time must be limited to 10 seconds at up to 300 When using a dedicated tool all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 Philips Semiconductors Product specification IF amplifier demodulator for FM radio TDA1596T receivers 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 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 damage to the device These are stress ratings only and operation of the device at these or at any other
4. 0 mV Fig 16 Power supply ripple rejection 20log AV4 AV4 33 36 dB Mute attenuation FM off 60 dB 20109 Va FM on V 4 FM ott April 1991 10 Product specification Philips Semiconductors TDA1596T 1 2121224 AVA peiuBie un JVA s 159 Bly BE 9 Q es Q 1 92 I Alo I AM O Ll Sd zv IF amplifier demodulator for FM radio receivers 4 Ju 901 49 W3 4 O3 uo einw 0 2 WI 5 gu 19661 01 509 Lu LOL Al HOLVUINID 3l 7 ti In O s M ade 15 A S 016 11 April 1991 Philips Semiconductors Product specification IF amplifier demodulator for FM radio TDA1596T receivers TDA1596T RS LC1 7221700 Fig 4 Printed circuit board component side showing component layout For circuit diagram see Fig 3 2221701 Fig 5 Printed circuit board showing track side April 1991 12 Philips Semiconductors Product specification IF amplifier demodulator for FM radio receivers TDA1596T 7221702 Fig 6 Typical curve of internal attenuation showing the relationship between the mute attenuator control voltage 16 and mute attenuation
5. ALINN 49193130 lt 3AN 3922 et lo 1965901 suze April 1991 Philips Semiconductors IF amplifier demodulator for FM radio receivers PINNING 1 Vp 2 LVA 3 ULV 4 5 Vref 6 WLV 7 MSW 8 DDV 9 n c 10 DMI 11 DMI2 12 n c 13 TSW 14 ST1 15 STO 16 MTV 17 GND 18 LFD1 19 LFD2 20 IFI April 1991 supply voltage level voltage adjustment unweighted level output K2 adjustment AF output reference voltage output weighted level voltage output mode switch detune detector voltage not connected demodulator input 1 demodulator input 2 not connected tau switch stop pulse output 1 stop pulse output 0 mute voltage ground IF limiter feedback 1 IF limiter feedback 2 IF input Product specification TDA1596T TOA1596T 7221699 Fig 2 Pinning diagram Philips Semiconductors Product specification IF amplifier demodulator for FM radio TDA1596T receivers 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 FM demodulator The demodulator is fully balanced and comprises two cross coupled differential amplifiers Quadrature detection o
6. INTEGRATED CIRCUITS DATA SHEET TDA1596T IF amplifier demodulator for FM radio receivers Product specification April 1991 File under Integrated Circuits ICO1 Philips PHILIPS Semiconductors DH L Philips Semiconductors Product specification IF amplifier demodulator for FM radio TDA1596T receivers 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 Features Simulates behaviour of a ratio detector internal field strength and detuning dependent voltage for dynamic AF signal muting Mono stereo blend and field strength indication control voltage Three state mode switch for FM mute on FM mute off FM off Internal compensation of AF signal total harmonic distortion THD Two open collector stop pulse outputs for microcomputer tuning control can be one stop pulse output by wired ANDing Internal reference voltage source Built in hum and ripple rejection circuits QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN MAX UNIT Vp Supply voltage pin 1 7 5 8 5 12 0 V Ip Supply current pin 1 Vp 8 5 Vilo2l1 20mA 20 26 mA Va rms AF output voltage RMS value Voo rms 10 mV 180 200 220 mV S N Signal to noise ratio Voo rms 10
7. MAX UNIT Tuning stop detector Figs 10 and 11 Stop 0 detuning at Voogrms 10 mV Af for Vi523 5 V 10 kHz Af for Vis lt 0 3 V 18 _ _ kHz Stop 1 detuning at V2o rms 10 mV Af for V142 9 5 V 10 kHz Af for Vi4 lt 0 3 V 18 2 Dependence of STOP 0 STOP 1 on input voltage pin 20 input voltage RMS value for Voo rms Vi42 V152 3 5 V 250 uV input voltage RMS value for V20 rms V14 V15 lt 0 3 V 50 uV Output voltage when 4 15 li42 lg 1 mA 0 3 V Mode switch and pin 3 Fig 12 FM off position Control voltage for 60 dB V7 muting depth 1 4 V FM mute on position pin 3 output Internal bias voltage at V7 Rz472 10 2 8 V Input current 2 5 uA Output voltage with V3 R3 17 10 KQ 2 1 2 V Output impedance for V2 lt 5 uV R3 17 100 Q FM mute off position pin 3 input V7 Control voltage 0 9 V5 V 15 Input current at V7 Vs 15 uA R3 17 Input resistance 1 Reference voltage source Vs Output voltage at 15 1 mA 3 3 3 7 4 1 V AV sls Output impedance at 15 1 mA 40 80 Q TC Temperature coefficient 3 3 mV K Connecting pin 13 to ground is only allowed for measuring the current at pin 16 It is not for use in application Without input voltage April 1991 9 Philips Semiconductors Product specification IF amplifier demodulator for FM radio TDA1596T receivers
8. OPERATING CHARACTERISTICS f 10 7 MHz Vi 1 mV deviation Af 22 5 kHz modulation frequency fm 400 Hz de emphasiss 4 50 us test circuit as per Fig 3 tuned circuit 19 aligned for symmetrical stop pulses Tamb 25 C unless otherwise specified SYMBOL PARAMETER MIN TYP MAX UNIT Va rms AF output voltage RMS value at 180 200 220 mV Voo rms 10 mV Voo rms Start of limiting FM mute off RMS value 14 22 35 uV Fig 13 Dependence of signal to noise ratio in noise frequency band 250 Hz to 15 kHz unweighted on input voltage Vig rms for S N 26 dB 15 uV V18 rms for S N 46 dB 60 uV S N at V20 rms 10 mV Af 75 kHz 82 dB THD THD FM mute on at Voogrms 10 mV Af 275 0 1 0 3 96 kHz fm 1 kHz without detuning without de emphasis 7 0 mA Op Dynamic mute attenuation Fig 14 16 dB V FM mute off V FM mute on with fm 100 kHz Af 75 kHz OpAf Slope of attenuation curve 0 8 dB kHz THD FM mute on at Vorms 10 mV Af 75 kHz fm 1 kHz detuning lt 25 kHz without THD de emphasis l 0 mA Fig 15 0 6 THD FM mute off and compensated via 3 at V2o rms 10 mV Af 75 kHz fm 1 kHz THD V5 0 07 0 25 V3 Voltage range at pin 3 for THD compensation 0 Vs V AM suppression FM mute off with amplitude 65 dB modulation at 3096 input voltage range V20 300 uV to 10
9. RAMETER MIN TYP MAX UNIT Attack and decay pin 16 Pin 13 connected to ground 16 charge current 8 uA l6 discharge current 120 uA Pin 13 connected to Vret l46 charge current 100 l6 discharge current 120 uA Level detector Dependence of output voltage on temperature 3 3 mV VK VAT Re Output impedance 500 Q Dependence of output voltage pin 6 on input voltage pin 20 Fig 7 Ve Voo rms 5 UV 1 0 mA 0 1 0 7 1 3 V Vs Voo rms 1 MV l2 15 0 mA 3 0 3 6 4 2 V Ve Slope of output voltage pin 6 for input voltage range 1 4 1 7 2 0 V 20 dB 20Alog V Voo rms 250 uV to Voo rms 50 mV Dependence of output voltage pin 6 on detuning Fig 8 at input voltage 10 mV AVe detuning lt 45 kHz E 0 2 V Af detuning for Vg 1 8 V 90 160 kHz Ve detuning 200 kHz 0 5 0 7 0 9 V IAVe Af Slope of output voltage with detuning 125 20 kHz 35 mV kHz at V2o rms 10 mV Level shift control pin 2 Fig 9 AVs adjustment range 1 6 2 0 V AVe AVo adjustment gain 1 7 V Ve output voltage at Vo Vs Voogrms lt 5 0 3 V Low pass filter at pin 8 Output voltage at 15 0 mA Vs Voo rms lt 5 uV 2 2 V Rig nt Internal resistance 12 25 50 April 1991 Philips Semiconductors IF amplifier demodulator for FM radio Product specification TDA1596T receivers SYMBOL PARAMETER MIN TYP
10. conditions above those given in the Characteristics sections of the specification is not implied Exposure to limiting values for extended periods may affect device reliability Application information Where application information is given it is advisory and does not form part of the specification LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances devices or systems where malfunction of these products can reasonably be expected to result in personal injury 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 April 1991 22
11. echnology A more in depth account of soldering ICs can be found in our Package Databook order code 9398 652 9001 1 Reflow soldering Reflow soldering techniques are suitable for all SO packages Reflow soldering requires solder paste a suspension of fine solder particles flux and binding agent to be applied to the printed circuit board by screen printing stencilling or pressure syringe dispensing before package placement Several techniques exist for reflowing for example thermal conduction by heated belt Dwell times vary between 50 and 300 seconds depending on heating method Typical reflow temperatures range from 215 to 250 C Preheating is necessary to dry the paste and evaporate the binding agent Preheating duration 45 minutes at 45 C April 1991 21 Product specification TDA1596T 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 to the solder flow The package footprint must incorporate solder thieves at the downstream end During placement and before soldering the package must be fixed with a droplet of adhesive The adhesive can be applied by screen printing pin transfer or syringe dispensing The package can be soldered
12. emodulator for FM radio TDA1596T receivers PACKAGE OUTLINE SO20 plastic small outline package 20 leads body width 7 5 mm SOT163 1 5 1 ay dpt 4 1 detail X scale DIMENSIONS inch dimensions are derived from the original mm dimensions A UNIT max A2 bp c p ed 2 65 13 0 7 6 126 74 inches 0 10 0 51 0 30 0 49 0 29 Note 1 Plastic or metal protrusions of 0 15 mm maximum per side are not included OUTLINE VERSION REFERENCES EUROPEAN IEC JEDEC EIAJ PROJECTION ISSUE DATE SOT163 1 075E04 MS 013AC Eo 92 44 44 95 01 24 April 1991 20 Philips Semiconductors IF amplifier demodulator for FM radio receivers SOLDERING Introduction 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 However wave soldering is not always suitable for surface mounted ICs or for printed circuits with high population densities In these situations reflow soldering is often used This text gives a very brief insight to a complex t
13. f the FM signal is performed by feeding one differential amplifier directly from the limiter amplifier output and the other via an external 90 phase shifting network The demodulator has good stability and its zero cross over shift is small The bandwidth of the demodulator output is restricted to approximately 1 MHz by an internal low pass filter THD compensation This circuit compensates non linearities introduced by demodulation For this to operate correctly the demodulator circuit between pins 10 and 11 must have a loaded Q factor of 19 Consequently there is no need for the demodulator tuned circuit to be adjusted for minimum THD instead the adjustment criterium is for a symmetrical stop pulse Mute attenuator and AF output The control voltage for the mute attenuator at pin 16 is generated from the values of the level detector and the detuning detector outputs The mute attenuator has a fast attack and a slow decay which is determined by the capacitor at pin 16 The AF signal is passed via the mute attenuator to the output at pin 4 A weighted control voltage available from pin 6 is obtained from the mute attenuator control voltage via a buffer amplifier which introduces an additional voltage shift and gain Level detector The level detector generates a voltage output which is proportional to the field strength of the input signal The unweighted level detector output is available when the mode switch is operating in the FM mute on cond
14. ition Tuning stop outputs The open collector outputs STOP 0 and STOP 1 from pins 15 and 14 respectively are voltages derived from the detuning level and the field strength of the input signal If only one tuning stop output is required pins 14 and 15 may be tied together April 1991 5 Philips Semiconductors IF amplifier demodulator for FM radio Product specification TDA1596T receivers RATINGS Limiting values in accordance with the Absolute Maximum System IEC 134 SYMBOL PARAMETER MIN MAX UNIT Vp 1 17 Supply voltage pin 1 0 3 16 V V547 Reference voltage range pin 5 0 3 10 V Vo47 Level adjustment range pin 2 0 3 10 V V747 Mode switch voltage range pin 7 0 3 Vp V V 13 17 Control input voltage range pin 13 6 V THD compensation unweighted field V3 17 strength voltage range pin 3 0 3 Vp V Tuning stop output voltage range V4547 STOP 0 pin 15 0 3 Vp V V4447 STOP 1 pin 14 0 3 Vp V Tuning stop output current 115 0 pin 15 2 mA lig STOP 1 pin 14 2 mA Tstg Storage temperature range 55 150 C Tamb Operating ambient temperature range 40 85 C Electrostatic handling Ves all pins except pins 5 and 6 2000 2000 V Ves pin 5 2000 900 V Ves pin 6 2000 1600 V Note 1 Equivalent to discharging a 100 pF capacitor through a 1 5 kO series resistor THERMAL RESISTANCE From junction to ambient in free air Rth 95 K W Apri
15. l 1991 Product specification Philips Semiconductors IF amplifier demodulator for FM radio receivers CHARACTERISTICS f 10 7 MHz V4 17 8 5 V Vi Voo 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 TDA1596T SYMBOL PARAMETER MIN TYP MAX UNIT Supplies Vp V4 Supply voltage 7 5 8 5 12 0 V H Supply current at 12 0 mA 20 26 mA FM demodulator R10 11 Input impedance 25 40 55 1 11 6 pF V4 DC output voltage no signal condition at 2 75 3 10 3 45 V V10 11 S 100 V2o rms S 5 HV R4 17 Output impedance 400 Q Mute attenuator control voltage Control voltage pin 16 Vie at V20 rms 5yV 2 0 V Vie at V20 rms 1mV 3 45 V R1047 Output impedance pin 16 2 0 MQ Vo Level shift input pin 2 internal bias voltage at 1 4 V l22 0 mA Ro17 input impedance 15 Internal muting Fig 6 Internal attenuation of signals 22 5 kHz lt detuning lt 80 kHz A 20log AV4 FM mute off AV4 FM A at Vig21 Vs 0 dB A at V16 0 77 Vs 1 5 3 0 4 5 dB A at Vig 0 55 V5 20 dB April 1991 Philips Semiconductors IF amplifier demodulator for FM radio Product specification TDA1596T receivers SYMBOL PA
16. mV fm 400 Hz 82 dB Af 75 kHz THD Total harmonic distortion Voo rms 10 mV fm 1 kHz 0 1 0 3 7 0 mA Af 75 kHz FM mute on without de emphasis without detuning Tamb Operating ambient temperature 40 85 C range SEE ALSO DATA SHEET FOR TDA1596 PACKAGE OUTLINE 20 lead mini pack plastic SO20 SOT163A SOT163 1 1996 August 12 April 1991 2 Product specification Philips Semiconductors TDA1596T IF amplifier demodulator for FM radio receivers uoneordde pue 814 y uolliolsip pug JO pejsn pe eq 1e 10151501 0 eui ul si y uonipuoo 4 2 esn 104 Jou S 9 uid juauno y Buunseeui 10 pewoj e juo si e Bunoeuuog 1 uonguuojut HOLIMS 1809 uo eyuu W4 wy pug unuu 10j g o Q 4 Pi XdWA VO HON Wa OLVNNALLY HAON YUS jeuondo 3 00 H24IMS aounos Et ZHWL x Z p EX Ee MOT aowaa avno Pt HIA H
17. rs Product specification IF amplifier demodulator for FM radio TDA1596T receivers 7221704 8 HH per TE EE SERIE 30 20 10 10 30 due kHz a STOP 0 8 7221703 __ 4 Et 2 2 ss 20 30 detune kHz b STOP 1 Fig 10 STOP 0 and STOP 1 output voltages as a function of detuning measured at 10 mV April 1991 15 Philips Semiconductors IF amplifier demodulator for FM radio receivers Product specification TDA1596T 7221711 EEE Hui T 1075 10 4 10 3 10 2 0 11 STOP 0 or STOP 1 output voltages as a function of input voltage at pin 20 FM muting 0 on 2 45 3 05 3 35 Fig 12 Switch levels at pin 7 AS mute off n V7 V 7281173 April 1991 16 Philips Semiconductors IF amplifier demodulator for FM radio receivers Product specification vill E 60 UE ON 2 E 7221710 80 10 8 10 5 60 80 10 6 10 5 50 u
18. s de emphasis ie HH _ L eee TTT ze LIE EEH al E E y Tr DE B EEE _ TNT e EHE LLLI Se TL noise 107 1073 107 107 a mode switch at FM mute on 7221709 10 4 10 3 10 2 10 b mode switch at FM mute off Fig 13 Audio signal Af 22 5 kHz fm 1 kHz and noise as functions of input voltage at pin 20 measured with April 1991 TDA1596T Philips Semiconductors Product specification IF lifi ampli ier demodulator for FM radio TDA1596T receivers 7281174 1 100 kHz P L eol A 30 50 60 70 90 ve kHz Fig 14 Dynamic mute attenuation as a function of frequency deviation for modulation frequencies of 40 60 80 and 100 kHz 7281184 2 SEE 1 0 HHHH HHH EEEE ETE E H 2 1 I 11 THD 0 4 EEH H HHHH HHH HHHHHHHHHHHHHHHPHHRIHH a a CELT LET EL 0 Edd 80 40 0 40 detune kHz Fig 15 THD as a function of detuning mode switch at FM mute on position Af 75 kHz fm 1 kHz Voo rms 10 April 1991 18 Philips Semiconductors
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