INTEGRATED CIRCUITS DATA SHEET TEA5712; TEA5712T AM/FM stereo DTS radio circuit Product specification Supersedes data of October 1992 File under Integrated Circuits, IC01 Philips Semiconductors September 1994 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T • Designed for simple and reliable printed-circuit board layout FEATURES • Wide supply voltage range: 1.8 or 2.1 to 12 V • High impedance MOSFET input on AM. • Low current consumption: 16 mA at AM, 17 mA at FM • High selectivity with distributed IF gain APPLICATIONS • LED driver for stereo indication • High input sensitivity: 1.6 mV/m (AM), 2.0 µV (FM) for 26 dB S/N • Portable AM/FM stereo radio • Good strong signal behaviour: 10 V/m at AM, 500 mV at FM • Digitally tuned personal headphone radio. • Low output distortion: 0.8% at AM, 0.3% at FM DESCRIPTION • Mini/midi receiver sets • Signal level output The TEA5712 is a high performance Bimos IC for use in digitally tuned AM/FM stereo radios. All necessary functions are integrated: from AM and FM front-end to AM detector and FM stereo output stages. • Soft mute • Signal dependent stereo • IF output signals available for IF counting QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. TYP. VP dynamic supply voltage 1.8 − 12 V VP static supply voltage 2.1 − 12 V IP supply current AM mode 12.8 16.0 20.0 mA FM mode 14.3 17.5 21.4 mA −15 − +60 °C Tamb operating ambient temperature AM performance Vin1 RF sensitivity 40 55 70 µV V28 AF output voltage 36 45 70 mV THD total harmonic distortion − 0.8 2.0 % FM performance Vin3 RF sensitivity 1.0 2.0 3.8 µV V28 AF output voltage 50 61 72 mV THD total harmonic distortion − 0.3 0.8 % 26 30 − dB MPX performance αcs channel separation AMPX MPX voltage gain THD total harmonic distortion VAF-L/Vin9; S5 in position MONO −1.5 − 0 +1.0 dB 0.5 1.0 % ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA5712 SDIP32 TEA5712T SO32 September 1994 DESCRIPTION VERSION plastic shrink dual in-line package; 32 leads (400 mil) SOT232-1 plastic small outline package; 32 leads; body width 7.5 mm SOT287-1 2 This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... Philips Semiconductors AM/FM stereo DTS radio circuit BLOCK DIAGRAM September 1994 3 Product specification TEA5712; TEA5712T Fig.1 Block diagram. Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T PINNING SYMBOL PIN DESCRIPTION IFCNT 1 IF signal output for IF counting AF-LO 2 left channel audio output (output impedance typ. 4.3 kΩ) AF-RO 3 right channel audio output (output impedance typ. 4.3 kΩ) PILFIL 4 pilot detector filter pin FM-DEM 5 ceramic discriminator pin IFGND 6 ground of IF, detector and MPX stages FM-IF2I 7 second FM-IF input (input impedance typ. 330 Ω) VSTABB 8 stabilized internal supply voltage (B) FM-IF1O 9 first FM-IF output (output impedance typ. 330 Ω) AM-IF2I/O 10 input/output to IFT; output: current source FM-IF1I 11 first FM-IF input (input impedance typ. 330 Ω) VSTABA 12 stabilized internal supply voltage (A) FM-MIXER 13 output to ceramic IF filter (output impedance typ. 330 Ω) AM-MIXER 14 open-collector output to IFT AM-IF1I 15 input from IFT or ceramic filter (input impedance typ. 3 kΩ) FM-RFI 16 FM-RF aerial input (input impedance typ. 50 Ω) RFGND 17 FM-RF ground AM-RFI 18 parallel tuned AM aerial circuit to ground (total input capacitance typ. 3 pF) RIPPLE 19 ripple capacitor pin AM-AGC 20 AGC capacitor pin FM-RFO 21 parallel tuned FM-RF circuit to ground SUBGND 22 substrate and RF ground FM-OSC 23 parallel tuned FM-oscillator circuit to ground AM-OSC 24 parallel tuned AM-oscillator circuit to ground VP 25 positive supply voltage IND 26 stop signal output VCO/AM-FM SWITCH 27 VCO and switch terminal: open for AM; ground for FM AFO 28 AM/FM AF output (output impedance typ. 5 kΩ) MPXI 29 input for stereo decoder (input impedance typ. 180 kΩ) ST-LED 30 stereo indicator LPF-M/S 31 pin for loop-filter and mono/stereo switch MUTE 32 mute pin September 1994 4 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T Fig.2 Pin configuration; TEA5712. September 1994 Fig.3 Pin configuration; TEA5712T. 5 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T FUNCTIONAL DESCRIPTION The AM circuit incorporates a double balanced mixer, a one pin low-voltage oscillator (up to 30 MHz) a field-strength 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. Fig.4 The PLL stereo decoder incorporates a signal dependent stereo circuit, a soft-mute circuit and a stereo indicator LED driver. 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The maximum supply voltage is 12 V, the minimum voltage can go down temporarily to 1.8 V without any loss in performance. Due to the capacitor at pin 19 (RIPPLE) the IC gives excellent performance, even when the actual supply voltage at pin 25 (VP) drops below the voltage at pin 19 (RIPPLE). Fig.5 Figures 4, 5 and 6 show that Vstab, which is dominant for the overall IC performance, remains unaffected, even if VP drops down to 1.8 V or less. In this typical example the static or average VP is equal to 2.5 V. Dips in Vstab appear only when the peak-to-peak value of the AC-component of VP > 2 V, i.e. when the dynamic value of VP drops down to 1.5 V for a short moment. Supply voltage behaviour; Vripple as a function of time. 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Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER MIN. MAX. UNIT VP supply voltage 0 12 V Tstg storage temperature −55 +150 °C Tamb operating ambient temperature −15 +60 °C Tj junction temperature −15 +150 °C THERMAL CHARACTERISTICS SYMBOL Rth j-a September 1994 PARAMETER VALUE UNIT SDIP32 54 K/W SO32 68 K/W thermal resistance from junction to ambient in free air 7 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T CIRCUIT DESIGN DATA DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL EQUIVALENT CIRCUIT AM FM BB BB BB IFCNT 1 0.3 0.3 0.65 0.65 0.65 0.65 output 2 AF-LO output 3 AF-RO BB BB BB BB BB BB BB output 4 5 September 1994 PILFIL FM-DEM 0.95 − 0.95 1.0 8 BB BB BB BB BBBB BBBBBB BB BB BB BB BB BB BB Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL 6 7 IFGND FM-IF2I input 8 9 VSTABB FM-IF1O output 10 AM-IF2I/O EQUIVALENT CIRCUIT AM FM 0 0 BBBB − 0.73 1.4 1.4 − 0.69 1.4 1.4 input/output September 1994 9 BB BB BB BBBB BBBB BBBB BBBB BBBB BBBB BBBB Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL EQUIVALENT CIRCUIT AM FM BBBB 11 FM-IF1I input 12 VSTABA FM-MIXER 13 output − 0.73 1.4 1.4 − 1.0 1.4 1.4 AM-MIXER 14 output September 1994 10 BBBB BBBB BBBB BBBB BB BB BB Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL EQUIVALENT CIRCUIT AM FM BB BB BB 15 AM-IF1I 1.4 1.4 − 0.73 BBBB input 16 FM-RFI input 17 18 RFGND AM-RFI 0 0 0 0 input September 1994 11 BB BB BB BB BB BB BB BBBB Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL EQUIVALENT CIRCUIT AM FM BBBB 19 RIPPLE 2.1 BB BB BB 2.1 BB BB BB BB BB BB 20 AM-AGC 0.1 21 FM-RFO 0 0 22 SUBGND 0 0 23 FM-OSC 0 0 September 1994 BBBB 0.7 12 BB BB BB BB BBBB BBBB Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL EQUIVALENT CIRCUIT AM FM 24 AM-OSC 0 0 25 VP 3.0 3.0 3.0 3.0 1.3 0.95 IND 26 output VCO and 27 AM/FM BB BB BB BB BB BB BB BB switch AF 0.6 28 0.7 output September 1994 13 BB BB BB BB BBBB BBBB Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T DC PIN VOLTAGE (V) PIN NO. PIN SYMBOL EQUIVALENT CIRCUIT AM FM BB BB BB BB BB BB MPX 29 1.23 1.23 3.0 3.0 BBBB input 30 ST-LED BB BB BB BBBB BBBB 31 LPF-M/S 0.1 0.8 32 MUTE 0.7 0.7 September 1994 14 BB BB BB BB Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T AM CHARACTERISTICS fi = 1 MHz; m = 0.3; fm = 1 kHz; VP = 3.0 V; measured in Fig.7 with S1 in position B, S2 in position A and S7 in position A; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT IP supply current no input signal 12.8 16.0 20.0 mA Ci input capacitance V20 = 0.2 V − 3 − pF Gc front-end conversion gain V20 = 0.2 V 1.8 3.3 5.0 Vin1 RF sensitivity S/N = 26 dB 40 55 70 µV Vin2 IF sensitivity V28 = 30 mV; S1 in position A 0.13 0.2 0.45 mV V28 AF output voltage Vin2 = 3.16 mV; S1 in position A 36 45 70 mV THD total harmonic distortion Vin1 = 1 mV − 0.8 2.0 % Vin1 large signal handling m = 0.8; THD ≤ 8% 150 300 − mV IIND indicator current Vin2 = 100 mV; S1 in position A 120 170 230 µA IINDOFF indicator OFF current Vin2 = 0 V; S1 in position A − 0 10 µA VIFCNTO(p-p) IF count output signal (peak-to-peak value) Vin2 = 10 V; S4 open − 400 − mV VIFCNT Vin10 = 3 V; S4 closed − −70 − dB IF count signal FM CHARACTERISTICS fi = 100 MHz; ∆f = 22.5 kHz; fm = 1 kHz; VP = 3.0 V; measured in Fig.7 with S1 in position B, S2 in position A and S7 in position A; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT IP supply current no input signal 14.3 17.5 21.4 mA Vin3 RF limiting sensitivity V28 = −3 dB 0.4 1.2 3.8 µV Vin3 RF sensitivity S/N = 26 dB 1.0 2.0 3.8 µV V11/Vin3 front-end voltage gain Vin3 ≤ 1 mV; including ceramic filter K1 12 18 22 dB Vin4 IF sensitivity S2 in position B; V28 = −3 dB − 20 30 µV V28 AF output voltage Vin3 = 1 mV 50 61 72 mV THD total harmonic distortion Vin3 = 1 mV; ∆f = 22.5 kHz − 0.3 0.8 % Vin3 large signal handling THD ≤ 5% − 500 − mV IIND indicator current Vin4 = 100 mV; S2 in position B 190 255 320 µA IINDOFF indicator OFF current Vin4 = 0 V; S2 in position B − 0 2 µA VIFCNTO(p-p) IF count output signal (peak-to-peak value) Vin4 = 10 V; S4 open − 360 − mV VIFCNT Vin10 = 3 V; S4 closed − −50 − dB IF count signal September 1994 15 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T STEREO DECODER CHARACTERISTICS fi = 1 kHz; Vin9(L+R) = 195 mv; pilot = 20 mV; VP = 3.0 V; measured in Fig.7 with S1 in position B, S2 in position A, S6 in position A, S7 in position A and S5 in position STEREO; unless otherwise specified. SYMBOL PARAMETER CONDITIONS AMPX MPX voltage gain VAF-L/Vin9 THD total harmonic distortion (S+N)/N signal plus noise-to-noise ratio pilot = 20 mV αcs channel separation L = 1; R = 0 or L = 0; R = 1 SC stereo control Vin3 = 120 µV Vin3 = 10 µV Vin3 ≤ 2 µV αMUTE AF output signal suppression September 1994 S5 in position MONO 16 MIN. TYP. MAX. UNIT −1.5 0 +1.0 dB − 0.5 1.0 % − 74 − dB 26 30 − dB − 30 − dB − 1 − dB − 20 − dB This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... Product specification TEA5712; TEA5712T cc cc c c 17 cc Philips Semiconductors AM/FM stereo DTS radio circuit September 1994 Fig.7 Test circuit. eeeeee e ee ee e eeee eeee eeeeeee eeeee eeeeeeeeeeee eeee eeeeeeeeee eeeee eeeee eeeeeeeeeeeeeee eeeeeeeeee eeeee eeeeeeee eeee eee Product specification Fig.8 Application circuit of TEA5712 (AM: 522 to 1611 kHz, FM: 87.5 to 108 MHz) with stereo headphone amplifier TDA7050T. TEA5712; TEA5712T eeeeeeeeeeeeeee eeeee 18 eeee ee eeee eeee eeee ee eeee eee e ee Philips Semiconductors AM/FM stereo DTS radio circuit APPLICATION INFORMATION September 1994 e e e e e e e e e e ee This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T Components for Fig.8 NUMBER TYPE DESCRIPTION Coils L1 AM-AERIAL ferroceptor length = 6 cm L1-2 = 203 µH unloaded Q L2 FM-RF L1-2 = 90 nH N1-2 = 2.5 turns unloaded Q = 150T TOKO type S18 L3 FM-OSC L1-2 = 70 nH N1-2 = 1.5 turns unloaded Q = 150 TOKO type S18 L4 AM-OSC L1-3 = 98 µH N1-2 = 12 N2-3 = 39 unloaded Q = 100 wire diameter 0.07 mm TOKO type 7P material TOKO 7BRS L5 AM-IF1 L1-3 = 625 µH 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 µH 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 L7 FM-AERIAL printcoil L1-2 = 60 nH N1-2 = 2.5 turns September 1994 19 CIRCUIT Philips Semiconductors Product specification AM/FM stereo DTS radio circuit NUMBER L8 TYPE AM-RF TEA5712; TEA5712T DESCRIPTION CIRCUIT test circuit only: L1-3 = 40 µH N1-3 = 34 turns unloaded Q = 85 wire diameter 0.09 mm TOKO type 7P material TOKO 7BRS Ceramic filters K1 FM-IF1 Murata SFE 10.7 MS 2 K2 FM-IF2 Murata SFE 10.7 MS 2 K3 FM-DET Murata CDA 10.7 MC 40 Variable capacitance diodes FM-RF BB204B FM-OSC BB204G FM-RF BB112 AM-OSC BB112 Application remarks • Short circuiting: all pins are short-circuit proof except pin 16 (FM-RFI) with respect to the supply voltage pin. • Align VCO with aerial signal present. BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBBB BBBBBBB BBBBBBB BBBBBBB BBBBBBB BBBBBBB Fig.9 Typical AM audio voltage (VAF; signal at m = 0.3), noise and THD as a function of RF input voltage (Vin1; fi = 1 kHz). Measured in test circuit Fig.7 with VP = 3.0 V. September 1994 20 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB BBBBBBBB Fig.10 Typical AM audio voltage (VAF; signal at m = 0.3), noise and THD as a function of field-strength (fi = 1 kHz). Measured in application circuit Fig.8 with VP = 3.0 V. BBBB BBBB BBBB BBBB BBBBBB BBBBBB BBBBBB BBBBBB BBBB BBBB BBBB BBBB BBBB BBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBB BBBBBB BBBBB BBBBBB BBBBB BBBBBB BBBBB BBBBBBB BBBBB BBBBBBB BBBBB BBBBBBB BBBBB BBBBBBB BBBB BBBB BBBB BBBB BBBBBB BBBBBB BBBBBB BBBBBBBBBB BBBBBBBBBB BBBBBBBBBB BBBBBBBBBB BBBBBBBBBB Fig.11 Typical FM audio voltage (VAF; signal), noise, THD (at ∆f = 22.5 kHz and ∆f = 75 kHz) and indicator current (level) as a function of RF input voltage (Vin1; ∆f = 22.5 kHz). Curves are shown without mute (mono) and with mute (mono and stereo). Channel separation at ∆f = 75 kHz. Measured in test circuit Fig.7 with VP = 3.0 V. September 1994 21 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T PACKAGE OUTLINES seating plane 29.4 28.5 10.7 10.2 3.8 max 4.7 max 3.2 2.8 0.51 min 1.6 max 0.53 max 1.778 (15x) 0.18 M 0.32 max 10.16 1.3 max 12.2 10.5 MSA270 32 17 9.1 8.7 1 16 Dimensions in mm. Fig.12 Plastic shrink dual in-line package; 32 leads (400 mil); (SDIP32; SOT232-1). September 1994 22 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T 20.7 20.3 7.6 7.4 10.65 10.0 0.1 S S 32 17 1.2 1.0 0.27 0.18 2.45 2.25 pin 1 index 1 0.3 0.1 16 1.1 0.5 detail A 0.95 (4x) 0.55 1.27 A 0.49 0.36 0 to 8 o MSA235 - 2 0.25 M (32x) Dimensions in mm. Fig.13 Plastic small outline package; 32 leads; body width 7.5 mm (SO32; SOT287-1). September 1994 23 2.65 2.35 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T SOLDERING BY SOLDER PASTE REFLOW Plastic dual in-line packages Reflow soldering requires the solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the substrate by screen printing, stencilling or pressure-syringe dispensing before device placement. BY DIP OR WAVE The maximum permissible temperature of the solder is 260 °C; this temperature must not be in contact with the joint for more than 5 s. The total contact time of successive solder waves must not exceed 5 s. Several techniques exist for reflowing; for example, thermal conduction by heated belt, infrared, and vapour-phase reflow. Dwell times vary between 50 and 300 s according to method. Typical reflow temperatures range from 215 to 250 °C. The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified storage maximum. 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. Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 min. at 45 °C. REPAIRING SOLDERED JOINTS (BY HAND-HELD SOLDERING IRON OR PULSE-HEATED SOLDER TOOL) REPAIRING SOLDERED JOINTS Fix the component by first soldering two, diagonally opposite, end pins. Apply the heating tool to the flat part of the pin only. Contact time must be limited to 10 s at up to 300 °C. When using proper tools, all other pins can be soldered in one operation within 2 to 5 s at between 270 and 320 °C. (Pulse-heated soldering is not recommended for SO packages.) Apply the soldering iron below the seating plane (or not more than 2 mm above it). If its temperature is below 300 °C, it must not be in contact for more than 10 s; if between 300 and 400 °C, for not more than 5 s. Plastic small-outline packages BY WAVE For pulse-heated solder tool (resistance) soldering of VSO packages, solder is applied to the substrate by dipping or by an extra thick tin/lead plating before package placement. During placement and before soldering, the component must be fixed with a droplet of adhesive. After curing the adhesive, the component can be soldered. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. Maximum permissible solder temperature is 260 °C, and maximum duration of package immersion in solder bath is 10 s, if allowed to cool to less than 150 °C within 6 s. Typical dwell time is 4 s at 250 °C. A modified wave soldering technique is recommended using two solder waves (dual-wave), in which a turbulent wave with high upward pressure is followed by a smooth laminar wave. Using a mildly-activated flux eliminates the need for removal of corrosive residues in most applications. September 1994 24 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T 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 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. September 1994 25 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T NOTES September 1994 26 Philips Semiconductors Product specification AM/FM stereo DTS radio circuit TEA5712; TEA5712T NOTES September 1994 27 Philips Semiconductors – a worldwide company Argentina: IEROD, Av. Juramento 1992 - 14.b, (1428) BUENOS AIRES, Tel. (541)786 7633, Fax. (541)786 9367 Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. (02)805 4455, Fax. (02)805 4466 Austria: Triester Str. 64, A-1101 WIEN, P.O. Box 213, Tel. (01)60 101-1236, Fax. (01)60 101-1211 Belgium: Postbus 90050, 5600 PB EINDHOVEN, The Netherlands, Tel. (31)40 783 749, Fax. (31)40 788 399 Brazil: Rua do Rocio 220 - 5th floor, Suite 51, CEP: 04552-903-SÃO PAULO-SP, Brazil. P.O. Box 7383 (01064-970). 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(09)849-7811 Norway: Box 1, Manglerud 0612, OSLO, Tel. (022)74 8000, Fax. (022)74 8341 Philips Semiconductors Pakistan: Philips Electrical Industries of Pakistan Ltd., Exchange Bldg. ST-2/A, Block 9, KDA Scheme 5, Clifton, KARACHI 75600, Tel. (021)587 4641-49, Fax. (021)577035/5874546. Philippines: PHILIPS SEMICONDUCTORS PHILIPPINES Inc, 106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI, Metro MANILA, Tel. (02)810 0161, Fax. (02)817 3474 Portugal: PHILIPS PORTUGUESA, S.A., Rua dr. António Loureiro Borges 5, Arquiparque - Miraflores, Apartado 300, 2795 LINDA-A-VELHA, Tel. (01)4163160/4163333, Fax. (01)4163174/4163366. Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231, Tel. (65)350 2000, Fax. (65)251 6500 South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale, 2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000, Tel. (011)470-5911, Fax. (011)470-5494. Spain: Balmes 22, 08007 BARCELONA, Tel. (03)301 6312, Fax. (03)301 42 43 Sweden: Kottbygatan 7, Akalla. S-164 85 STOCKHOLM, Tel. (0)8-632 2000, Fax. (0)8-632 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. (01)488 2211, Fax. (01)481 77 30 Taiwan: PHILIPS TAIWAN Ltd., 23-30F, 66, Chung Hsiao West Road, Sec. 1. Taipeh, Taiwan ROC, P.O. Box 22978, TAIPEI 100, Tel. (02)388 7666, Fax. (02)382 4382. Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, Bangkok 10260, THAILAND, Tel. (662)398-0141, Fax. (662)398-3319. Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL, Tel. (0 212)279 2770, Fax. (0212)269 3094 United Kingdom: Philips Semiconductors LTD., 276 Bath road, Hayes, MIDDLESEX UB3 5BX, Tel. (081)73050000, Fax. (081)7548421 United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel. (800)234-7381, Fax. (708)296-8556 Uruguay: Coronel Mora 433, MONTEVIDEO, Tel. (02)70-4044, Fax. (02)92 0601 For all other countries apply to: Philips Semiconductors, International Marketing and Sales, Building BE-p, P.O. Box 218, 5600 MD, EINDHOVEN, The Netherlands, Telex 35000 phtcnl, Fax. +31-40-724825 SCD35 © Philips Electronics N.V. 1994 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Printed in The Netherlands