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INTEGRATED CIRCUITS DATA SHEET TEA5710; TEA5710T AM/FM radio receiver circuit Product specification File under Integrated Circuits, IC01 March 1994 Philips Semiconductors Product specification AM/FM radio receiver circuit FEATURES * Wide supply voltage range: 2.0 to 12 V * Low current consumption: 7.5 mA at AM, 9.0 mA at FM * High selectivity with distributed IF gain * LED driver for tuning indication * High input sensitivity: 1.6 mV/m (AM), 2.0 V (FM) for 26 dB S/N * Good strong signal behaviour: 10 V/m at AM, 500 mV at FM * Low output distortion: 0.8% at AM, 0.3% at FM * Designed for simple and reliable PC-board layout * High impedance MOSFET input on AM DESCRIPTION APPLICATIONS TEA5710; TEA5710T * Portable AM/FM radio * Clock radio * Personal headphone radio The TEA5710 is a high performance Bimos IC for use in AM/FM radios. All necessary functions are integrated: from AM and FM front-end to detector output stages. QUICK REFERENCE DATA Conditions AM: fi = 1 MHz; m = 0.3; fm = 1 kHz; VP = 3.0 V; measured in Fig.4 with S1 in position B and S2 in position A, unless otherwise specified. Conditions FM: fi = 100 MHz; f = 22.5 kHz; fm = 1 kHz; VP = 3.0 V; measured in Fig.4 with S1 in position B and S2 in position A, unless otherwise specified. SYMBOL VP IP PARAMETER positive supply voltage supply current in AM mode in FM mode Tamb AM performance Vin1 V13 THD FM performance Vin3 V13 THD RF sensitivity AF output voltage total harmonic distortion 1.0 47 - 2.0 58 0.3 3.8 69 0.8 V mV % RF sensitivity AF output voltage total harmonic distortion 40 36 - 55 45 0.8 70 70 2.0 V mV % operating ambient temperature range 5.6 7.3 -15 7.5 9.0 - 9.9 11.2 +60 mA mA C 2.0 MIN. - TYP. 12 MAX. V UNIT ORDERING INFORMATION EXTENDED TYPE NUMBER TEA5710 TEA5710T Notes 1. SOT234-1; 1996 August 27. 2. SOT137-1; 1996 August 27. PACKAGE PINS 24 24 PIN POSITION SDIL SO24L MATERIAL plastic plastic CODE SOT234AG(1) SOT137A(2) March 1994 2 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T handbook, full pagewidth FM-RFI 1 24 FM-RFO 20 FM-MIXER 4 FM MIXER FM-IF1I 6 FM-RF1O 8 FM IF 1 FM-IF2I 10 FM IF 2 FM-DEM 12 FM DETECTOR RFGND FM FRONT-END FM-OSC VP RIPPLE VSTABA VSTABB IFGND AM-OSC 18 16 22 5 9 11 17 AM OSCILLATOR AGC AM/FM INDICATOR 15 IND STABILIZER FM OSCILLATOR FM 14 AM/FM SWITCH 21 AM/FM TEA5710 TEA5710T AM AM-AGC/ FM-AFC AM-RFI 23 AM FRONT-END AM MIXER AM-IF AM DETECTOR 13 AF 3 AM-MIXER 2 AM-IF1I 7 AM-IF2I/O 19 SUBGND MGE106 Fig.1 Block diagram. March 1994 3 Philips Semiconductors Product specification AM/FM radio receiver circuit PINNING SYMBOL FM-RFI AM-IF1I AM-MIXER FM-MIXER VSTABA FM-IF1I AM-IF2I/O FM-IF1O VSTABB FM-IF2I IFGND FM-DEM AF AM/FM IND VP AM-OSC FM-OSC SUBGND FM-RFO AM-AGC/FM-AFC RIPPLE AM-RFI RFGND PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 TEA5710; TEA5710T DESCRIPTION FM-RF aerial input (input impedance typ. 50 ) input from IFT or ceramic filter (input impedance typ. 3 k) open-collector output to IFT output to ceramic IF filter (output impedance typ. 330 ) stabilized internal supply voltage (A) first FM-IF input (input impedance typ. 330 ) input/output to IFT; output: current source first FM-IF output (output impedance typ. 330 ) stabilized internal supply voltage (B) second FM-IF input (input impedance typ. 330 ) ground of IF and detector stages ceramic discriminator pin audio output (output impedance typ. 5 k) switch terminal: open for AM; ground for FM field-strength dependent indicator positive supply voltage parallel tuned AM-OSC circuit to ground parallel tuned FM-OSC circuit to ground substrate and RF ground parallel tuned FM-RF circuit to ground AGC/AFC capacitor pin ripple capacitor pin parallel tuned AM aerial circuit to ground (total input capacitance typ. 3 pF) FM-RF ground March 1994 4 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T handbook, halfpage handbook, halfpage FM-RFI AM-IFI AM-MIXER FM-MIXER VSTABA FM-IF1I AM-IF2I/O FM-IF1O VSTABB 1 2 3 4 5 6 24 RFGND 23 AM-RFI 22 RIPPLE 21 AM-AGC/FM-AFC 20 FM-RFO 19 SUBGND FM-RFI AM-IFI AM-MIXER FM-MIXER VSTABA FM-IF1I AM-IF2I/O FM-IF1O VSTABB 1 2 3 4 5 6 24 RFGND 23 AM-RFI 22 RIPPLE 21 AM-AGC/FM-AFC 20 FM-RFO 19 SUBGND TDA5710 7 8 9 18 FM-OSC 17 AM-OSC 16 VP 15 IND 14 AM/FM 13 AF MGE104 TDA5710T 7 8 9 18 FM-OSC 17 AM-OSC 16 VP 15 IND 14 AM/FM 13 AF MGE105 FM-IF2I 10 IFGND 11 FM-DEM 12 FM-IF2I 10 IFGND 11 FM-DEM 12 Fig.2 Pin configuration TEA5710. Fig.3 Pin configuration TEA5710T. FUNCTIONAL DESCRIPTION The TEA5710 incorporates internal stabilized power supplies. The maximum supply voltage is 12 V, the minimum voltage can go down temporarily to 1.8 V without any loss in performance. The AM circuit incorporates a double balanced mixer, a one pin low-voltage oscillator (up to 30 MHz), a field-strength dependent indicator output and is designed for distributed selectivity. The AM input is designed to be connected to the top of a tuned circuit. AGC controls the IF amplification and for large signals it lowers the input impedance. The first AM selectivity can be an IFT as well as an IFT combined with a ceramic filter; the second one is an IFT. The FM circuit incorporates a tuned RF stage, a double balanced mixer, a one-pin oscillator, a field-strength indicator output and is designed for distributed IF ceramic filters. The FM quadrature detector uses a ceramic resonator. March 1994 5 Philips Semiconductors Product specification AM/FM radio receiver circuit LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134) SYMBOL VP Tstg Tamb Tj PARAMETER positive supply voltage storage temperature range operating ambient temperature range junction temperature range 0 -55 -15 -15 MIN. TEA5710; TEA5710T MAX. 12 +150 +60 +150 V C C C UNIT THERMAL RESISTANCE SYMBOL Rth j-a PARAMETER from junction to ambient for SDIL version TEA5710 for SO24L version TEA5710T CIRCUIT DESIGN DATA DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL AM FM EQUIVALENT CIRCUIT 69 76 K/W K/W VALUE UNIT 1 FM-RFI - 0.73 1 24 20 220 MGE114 5 3 k 2 AM-IF1I input 1.4 1.4 2 11 MGE115 March 1994 6 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL AM FM EQUIVALENT CIRCUIT 3 3 AM-MIXER output 1.4 1.4 5 MGE116 4 FM-MIXER output - 1.0 4 680 MGE117 16 5 VSTABA 1.4 1.4 22 5 MGE118 5 120 2.7 k 6 FM-IFI input 6 - 0.73 11 MGE119 March 1994 7 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL AM FM EQUIVALENT CIRCUIT 9 7 AM-IF2I/O input/output 7 1.4 1.4 11 MGE120 9 8 FM-IF1O output - 0.69 8 560 MGE121 16 9 VSTABB 1.4 1.4 22 9 MGE122 9 180 2.2 k 10 FM-IF2I input 10 - 0.73 11 MGE123 11 IFGND 0 0 March 1994 8 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL AM FM EQUIVALENT CIRCUIT 180 12 12 FM-DEM - 1.0 910 11 MGE124 13 AF output 0.6 0.7 13 25 k 5 k 11 MGE125 14 AM/FM switch 1.3 0 14 MGE126 15 15 IND 3.0 3.0 11 MGE127 16 VP 3.0 3.0 17 AM-OSC 0 0 17 19 MGE128 March 1994 9 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL AM FM EQUIVALENT CIRCUIT 18 18 FM-OSC 0 0 10 k 21 19 MGE129 19 SUBGND 0 0 20 FM-RFO 0 0 1 24 20 220 MGE114 21 21 AM-AGC/ FM-AFC 0.1 0.7 11 MGE130 March 1994 10 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL AM FM EQUIVALENT CIRCUIT 16 22 22 RIPPLE 2.1 2.1 11 MGE131 23 AM-RFI 0 0 19 23 MGE132 24 RFGND 0 0 1 24 20 220 MGE114 March 1994 11 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T AM CHARACTERISTICS fi = 1 MHz; m = 0.3; fm = 1 kHz; VP = 3.0 V; measured in Fig.4 with S1 in position B and S2 in position A, unless otherwise specified. SYMBOL IP Ci Gc Vin1 Vin2 V13 THD Vin1 IIND IINDOFF PARAMETER supply current input capacitance front-end conversion gain RF sensitivity IF sensitivity AF output voltage total harmonic distortion large signal handling indicator current indicator OFF current CONDITIONS no input signal V21 = 0.2 V V21 = 0.2 V S/N = 26 dB V13 = 30 mV; S1 in position A Vin2 = 3.16 mV; S1 in position A Vin1 = 1 mV m = 0.8; THD 8% Vin2 = 100 mV; S1 in position A Vin2 = 0 V; S1 in position A FM CHARACTERISTICS fi = 100 MHz; f = 22.5 kHz; fm = 1 kHz; VP = 3.0 V; measured in Fig.4 with S1 in position B and S2 in position A, unless otherwise specified. SYMBOL IP Vin3 Vin3 V6/Vin3 PARAMETER supply current RF limiting sensitivity RF sensitivity front-end voltage gain CONDITIONS no input signal V13 = -3 dB S/N = 26 dB Vin3 1 mV; including ceramic filter K1 S2 in position B; V13 = -3 dB Vin3 = 1 mV Vin3 = 1 mV; f = 22.5 kHz THD 5% Vin4 = 100 mV; S2 in position B Vin4 = 0 V; S2 in position B MIN. 7.3 0.4 1.0 12 TYP. 9.0 1.2 2.0 18 MAX. 11.2 3.8 3.8 22 UNIT mA V V dB - 0 10 A 2 3.5 6 mA - 150 0.8 300 2.0 - % mV 36 45 70 mV - 1.8 40 0.13 MIN. 5.6 3 3.3 55 0.2 TYP. 7.5 - 5.0 70 0.45 V mV MAX. 9.9 UNIT mA pF Vin4 V13 THD Vin3 IIND IINDOFF IF sensitivity AF output voltage total harmonic distortion large signal handling indicator current indicator OFF current - 47 - - 2 - 20 58 0.3 500 3.5 0 30 69 0.8 - 6 10 V mV % mV mA A March 1994 12 March 1994 handbook, full pagewidth Philips Semiconductors Vin1 18 pF 8.2 pF 22 pF L2 L3 L4 Rg FM-RF VP CQS54 10 nF FM AM 100 F 10 F 21 20 19 18 17 16 15 14 13 23 22 10 nF Vp AF FM-OSC AM-OSC 43 L8 40 H (50 ) AM/FM radio receiver circuit 1 MHz 6.8 680 pF 24 13 TEA5710 TEA5710T 2 3 4 5 6 7 8 9 S1 S2 B K1 L6 L5 Rg 330 (50 ) 10.7 MHz Vin4 50 A B K2 A Vin3 1 10 11 12 Rg 27 1 nF K3 (50 ) 100 MHz 560 91 MGE108 Rg 220nF 3 k (50 ) 468 kHz Vin2 50 to pin 5 TEA5710; TEA5710T Product specification Fig.4 Test circuit. March 1994 handbook, full pagewidth Philips Semiconductors APPLICATION INFORMATION 1 2 1 Cc 20 pF CTc 8 pF L4 3 AM-OSC VP HP 32 ON OFF R1 10 R2 10 3V C11 100 F CTd 8 pF FM-OSC C7 22 pF C8 8.2 pF Cd 80 pF Cb 20 pF CTb 8 pF L3 1 C6 18 pF 2 L1 2 Ca 140 pF CTa 8 pF L2 1 AM/FM radio receiver circuit AM-RFI FM-RFI C4 10 nF LED CQS54 C5 10 nF AF VP 20 19 18 17 16 15 14 13 8 FM AM C10 100 F C2 100 F C3 10 F 14 TEA5710 TEA5710T 5 6 7 8 9 10 11 12 1 K1 2 3 SFE10.7MS3 SFE10.7MS2 L6 K2 K3 CDA10.7MC40 24 23 22 21 7 6 5 TDA7050T 1 2 3 4 1 2 3 4 C1 4.7 nF 6 1 C9 100 nF MGE107 CO 22 pF L7 60 nH 4 2 3 L5 P1 4.7 k TEA5710; TEA5710T Product specification Fig.5 Application circuit of TEA5710 (AM: 522 to 1611 kHz, FM: 87.5 to 108 MHz) with stereo headphone amplifier TDA7050T. Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T handbook, full pagewidth MGE109 Fig.6 Printed-circuit board layout (track side) for application circuit of Fig.5. March 1994 15 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T handbook, full pagewidth ANT C1 C12 C2 R2 HP PLUG R3 C11 L6 L5 4.7 GND 100MHz 680 560 27 91 40 H 6.8 43 1MHz L1 C4 C3 C7 L2 1 K1 ANT F M A M OSC L3 L4 C9 TEA5710 C8 C5 K2 K3 P1 C6 1.5 V C10 GND AF MGE110 1.5 V Fig.7 Printed-circuit board layout (component side) for application circuit of Fig.5. March 1994 16 Philips Semiconductors Product specification AM/FM radio receiver circuit Components for Figs 4 and 5 Coils L1 AM-AERIAL ferroceptor length = 6 cm L1-2 = 625 H N1-2 = 105 turns L2 FM-RF L1-2 = 66 nH N1-2 = 2.5 turns unloaded Q = 150 TOKO type S18 TOKO no. 301SS-0200 L3 FM-OSC L1-2 = 40 nH N1-2 = 1.5 turns unloaded Q = 150 TOKO type S18 TOKO no. 301SS-0100 L4 AM-OSC L1-3 = 270 H N1-2 = 18 N2-3 = 70 unloaded Q = 100 wire diameter 0.07 mm TOKO type 7P material TOKO 7BRS L5 AM-IF1 L1-3 = 625 H N1-2 = 17 turns N2-3 = 141 turns N4-6 = 10 turns C1-3 = 180 pF unloaded Q = 90 wire diameter 0.07 mm TOKO type 7P material TOKO 7MCS L6 AM-IF2 L1-3 = 625 H N1-2 = 28 turns N2-3 = 130 turns C1-3 = 180 pF unloaded Q = 90 wire diameter 0.07 mm TOKO type 7P material TOKO 7MCS TEA5710; TEA5710T 3 2 1 S MGE133 L4 3 2 1 S L5 S 4 6 MGE134 3 2 1 S MGE135 L6 March 1994 17 Philips Semiconductors Product specification AM/FM radio receiver circuit L7 FM-AERIAL print-coil L1-2 = 60 nH N1-2 = 2.5 turns L8 AM-RF test circuit only: L1-3 = 40 H N1-3 = 34 turns unloaded Q = 85 wire diameter 0.09 mm TOKO type 7P material TOKO 7BRS Ceramic filters K1 K2 K3 FM-IF1 FM-IF2 FM-DET Murata SFE 10.7 MS 3 Murata SFE 10.7 MS 2 Murata CDA 10.7 MC 40 TEA5710; TEA5710T 3 L8 1 S MGE136 Capacitors C1 VARICON AM: 140/82 pF FM: 2 x 20 pF trimmer: 4 x 8 pF TOKO type no. HU-22124 Application notes 1. Short circuiting: all pins are short-circuit proof except pin 1 (FM-RFI) with respect to the supply voltage pin. 2. Tuning indicator (at pin 15, IND): connect either a tuning indicator (e.g. a LED) between this pin and the supply voltage (pin 16) or connect the pin IND to ground. 3. For an example of PC-board layout: see Figs 6 and 7. March 1994 18 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T MGE111 handbook, full pagewidth 0 VAF (dB) 0 dB = 45 mV -10 signal m = 0.3 7 level (mA) THD (%) 6 -20 noise m=0 level 5 -30 4 -40 3 -50 2 -60 THD m = 0.3 -70 10-1 1 10 102 103 104 105 1 Vin1 (V) 0 106 Fig.8 Typical AM audio output voltage (VAF; signal at m = 0.3), noise, THD (at m = 0.3) and indicator current (level) as a function of RF input voltage (Vin1; f = 1 kHz). Measured in test circuit of Fig.4 with VP = 3.0 V. March 1994 19 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T handbook, full pagewidth 0 MGE112 VAF (dB) 0 dB = 45 mV -10 signal m = 0.3 7 level (mA) THD (%) 6 -20 noise m=0 level 5 -30 4 -40 3 -50 2 -60 THD m = 0.3 -70 1 10 102 103 104 105 106 field-strength (V) 1 0 107 Fig.9 Typical AM audio output voltage (VAF; signal at m = 0.3), noise, THD (at m = 0.3) and indicator current (level) as a function of field-strength (f = 1 kHz). Measured at 1 MHz in application circuit of Fig.5 with VP = 3 V. March 1994 20 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T handbook, full pagewidth 0 MGE113 VAF (dB) 0 dB = 65 mV -10 signal 7 ind (mA) THD (%) 6 -20 5 -30 noise ind 4 -40 3 -50 THD 22.5 kHz 2 -60 1 -70 10-1 1 10 102 103 104 105 Vin3 (V) 0 106 Fig.10 Typical FM audio output voltage (VAF; signal), noise, THD and indicator current (ind) as a function of RF input voltage (Vin3; df = 22.5 kHz). Measured in test circuit of Fig.4 at VP = 3 V. March 1994 21 Philips Semiconductors Product specification AM/FM radio receiver circuit PACKAGE OUTLINES SDIP24: plastic shrink dual in-line package; 24 leads (400 mil) TEA5710; TEA5710T SOT234-1 D seating plane ME A2 A L A1 c Z e b 24 13 b1 wM (e 1) MH pin 1 index E 1 12 0 5 scale 10 mm DIMENSIONS (mm are the original dimensions) UNIT mm A max. 4.7 A1 min. 0.51 A2 max. 3.8 b 1.3 0.8 b1 0.53 0.40 c 0.32 0.23 D (1) 22.3 21.4 E (1) 9.1 8.7 e 1.778 e1 10.16 L 3.2 2.8 ME 10.7 10.2 MH 12.2 10.5 w 0.18 Z (1) max. 1.6 Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT234-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION ISSUE DATE 92-11-17 95-02-04 March 1994 22 Philips Semiconductors Product specification AM/FM radio receiver circuit TEA5710; TEA5710T SO24: plastic small outline package; 24 leads; body width 7.5 mm SOT137-1 D E A X c y HE vMA Z 24 13 Q A2 A1 pin 1 index Lp L 1 e bp 12 wM detail X (A 3) A 0 5 scale 10 mm DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 2.65 0.10 A1 0.30 0.10 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 15.6 15.2 0.61 0.60 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.050 HE 10.65 10.00 0.42 0.39 L 1.4 Lp 1.1 0.4 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 Z (1) 0.9 0.4 0.012 0.096 0.004 0.089 0.019 0.013 0.014 0.009 0.043 0.055 0.016 0.035 0.004 0.016 8o 0o Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. OUTLINE VERSION SOT137-1 REFERENCES IEC 075E05 JEDEC MS-013AD EIAJ EUROPEAN PROJECTION ISSUE DATE 92-11-17 95-01-24 March 1994 23 Philips Semiconductors Product specification AM/FM radio receiver circuit 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 technology. A more in-depth account of soldering ICs can be found in our "IC Package Databook" (order code 9398 652 90011). SDIP SOLDERING BY DIPPING OR BY WAVE The maximum permissible temperature of the solder is 260 C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg max). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. REPAIRING SOLDERED JOINTS Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 C, contact may be up to 5 seconds. SO 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. TEA5710; TEA5710T 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. 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 after the adhesive is cured. Maximum permissible solder temperature is 260 C, 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 C. 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 diagonallyopposite 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 C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 C. March 1994 24 Philips Semiconductors Product specification AM/FM radio receiver circuit DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values TEA5710; TEA5710T This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications. 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 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. March 1994 25 |
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