INTEGRATED CIRCUITS DATA SHEET TEA5757; TEA5759 Self Tuned Radio (STR) Product specification Supersedes data of 1996 Jan 09 File under Integrated Circuits, IC01 1999 Aug 26 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 FEATURES • High selectivity with distributed IF gain • The tuning system has an optimized IC partitioning both from application (omitting interferences) and flexibility (removable front panel option) point of view: the tuning synthesizer is on-chip with the radio • Soft mute • Signal dependent stereo-blend • High impedance MOSFET input on AM • Wide supply voltage range of 2.5 to 12 V • The tuning quality is superior and requires no IF-counter for stop-detection; it is insensitive to ceramic filter tolerances • Low current consumption 18 mA at AM and FM (including tuning synthesizer) • High input sensitivity • In combination with the microcontroller, fast, low-power operation of preset mode, manual-search, auto-search and auto-store are possible • Low output distortion • Due to the new tuning concept, the tuning is independent of the channel spacing. • The local (internal) controller function facilitates reduced and simplified microcontroller software • The high integration level (radio and tuning synthesizer on one chip) means fewer external components with regard to the communication between the radio and the microcontroller (90% less components compared to the digital tuning application of a radio IC with external PLL tuning function) and a simple and small printed-circuit board GENERAL DESCRIPTION The TEA5757; TEA5759 is a 44-pin integrated AM/FM stereo radio circuit including a novel tuning concept. The radio part is based on the TEA5712. The TEA5757 is used in FM-standards in which the local oscillator frequency is above the radio frequency (e.g. European and American standards). • There will be no application considerations for the tuning system, with regards to quality and high integration level, since there will be no external 110 MHz buffers, loop filter or false lock elimination The TEA5759 is the version in which the oscillator frequency is below the radio frequency (e.g. Japanese standard). • The inherent FUZZY LOGIC behaviour of the Self Tuned Radio (STR), which mimics hand tuning, yields a potentially fast yet reliable tuning operation The new tuning concept combines the advantages of hand tuning with electronic facilities and features. User ‘intelligence’ is incorporated into the tuning algorithm and an improvement of the analog signal processing is used for the AFC function. • The level of the incoming signal at which the radio must lock is software programmable • Two programmable ports ORDERING INFORMATION PACKAGE TYPE NUMBER TEA5757H TEA5759H 1999 Aug 26 NAME DESCRIPTION VERSION QFP44 plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 × 10 × 1.75 mm SOT307-2 2 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VCC1 supply voltage 2.5 − 12 V VCC2 supply voltage for tuning − − 12 V Vtune tuning voltage 0.7 − VCC2 − 0.75 V ICC1 supply current AM mode 12 15 18 mA FM mode 13 16 19 mA AM mode − 3.3 − mA FM mode IDD supply current − 2.7 − mA ICC2 supply current for tuning in preset mode (band-end to band-end) − − 800 µA Tamb ambient temperature −15 − +60 °C AM performance; note 1 V10 AF output voltage Vi1 = 5 mV 36 45 70 mV Vi1 RF sensitivity input voltage (S+N)/N = 26 dB 40 55 70 µV THD total harmonic distortion Vi1 = 1 mV − 0.8 2.0 % FM performance; note 2 V10 AF output voltage Vi5 = 1 mV 40 48 57 mV Vi5 RF limiting sensitivity V10 at −3 dB; 0.4 V10 is 0 dB at Vi5 = 1 mV 1.2 3.8 µV THD total harmonic distortion IF filter SFE10.7MS3A20K-A − 0.3 0.8 % 26 30 − dB MPX performance; note 3 αcs channel separation Notes 1. VCC1 = 3 V; VCC2 = 12 V; VDDD = 3 V; fi = 1 MHz; m = 0.3; fm = 1 kHz; measured in Fig.9 with S1 in position A and S2 in position B; Vn refers to pin voltages; Vi(n) refers to test circuit (see Fig.9). 2. VCC1 = 3 V; VCC2 = 12 V; VDDD = 3 V; fi = 100 MHz; ∆fm = 22.5 kHz; fm = 1 kHz; measured in Fig.9 with S2, S3 and S5 in position A; Vn refers to pin voltages; Vi(n) refers to test circuit (see Fig.9). 3. VCC1 = 3 V; VCC2 = 12 V; VDDD = 3 V; Vi3(L + R) = 155 mV; Vpilot = 15.5 mV; fi = 1 kHz; measured in Fig.9 with S2 and S3 in position B. 1999 Aug 26 3 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 ... DATA BUS-CLOCK WRITE-ENABLE VSTAB(A) VSTAB(B) VCC1 VDDD RIPPLE 39 37 35 IFGND 33 17 FMDEM FSI 18 21 43 42 FM FRONT-END FM OSCILLATOR FM MIXER FM IF1 FM DETECTOR FM IF2 28 27 29 38 34 7 23 1 16 PILOT DETECTOR 24 12 PLL AM/FM INDICATOR STATUS REGISTER STABILIZER SHIFT REGISTER PRESCALER LAST-STATION MEMORY 9 up down level IN-LOCK DETECTOR stereo 14 4 SEQUENTIAL CIRCUIT PROGRAMMABLE COUNTER CHARGE PUMP P1 P0 WINDOW DETECTOR 13 MUTE level AFC TEA5757; TEA5759 19 20 32 6 40 AM IF 41 AGC 36 AM-IFI/O2 AM-MIXER AM-IFI1 44 AGC Fig.1 Block diagram. AFC(p) AFC V/I CONVERTER AM DETECTOR 22 10 11 TUNE AFO VCC2 MPXI 8 4 RFGND MHA111 Product specification AMOSC AM MIXER handbook, full pagewidth AM OSCILLATOR AFC(n) TEA5757; TEA5759 AM-RFI AM FRONT-END MUTE AM 31 30 2 AFRO mono SDS hard mute CRYSTAL OSCILLATOR AFLO MATRIX FM 26 VCO DECODER MULTIPLEXER DGND LFI 38 kHz 15 25 MO/ST 19 kHz stereo XTAL PILFIL Philips Semiconductors RFGND 5 FM-IFI2 FM-IFO1 Self Tuned Radio (STR) 3 FM-RFI FM-IFI1 FM-MIXER FMOSC BLOCK DIAGRAM 1999 Aug 26 FM-RFO Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 PINNING SYMBOL PIN DESCRIPTION RIPPLE 1 ripple capacitor input AM-RFI 2 AMRF input FM-RFO 3 parallel tuned FMRF circuit to ground RFGND 4 RF ground and substrate FMOSC 5 parallel tuned FM-oscillator circuit to ground AMOSC 6 parallel tuned AM-oscillator circuit to ground VCC1 7 supply voltage TUNE 8 tuning current output VCO 9 voltage controlled oscillator input AFO 10 AM/FM AF output (output impedance typical 5 kΩ) MPXI 11 stereo decoder input (input impedance typical 150 kΩ) LFI 12 loop-filter input MUTE 13 mute input AFLO 14 left channel output (output impedance typical 4.3 kΩ) AFRO 15 right channel output (output impedance typical 4.3 kΩ) PILFIL 16 pilot detector filter input IFGND 17 ground of IF, detector and MPX stage FMDEM 18 ceramic discriminator input AFC(n) 19 AFC negative output AFC(p) 20 AFC positive output FSI 21 field-strength indicator VCC2 22 supply voltage for tuning VDDD 23 digital supply voltage MO/ST 24 mono/stereo and tuning indication output XTAL 25 crystal input DGND 26 digital ground BUS-CLOCK 27 bus-clock input DATA 28 bus data input/output WRITE-ENABLE 29 bus write-enable input P0 30 programmable output port (P0) P1 31 programmable output port (P1) AFC 32 450 kHz LC-circuit FM-IFI2 33 FMIF input 2 (input impedance typical 330 Ω) VSTAB(B) 34 internal stabilized supply voltage (B) FM-IFO1 35 FMIF output 1 (output impedance typical 330 Ω) AM-IFI/O2 36 input/output to IF-Tank (IFT); output: current source FM-IFI1 37 FMIF input 1 (input impedance typical 330 Ω) VSTAB(A) 38 internal stabilized supply voltage (A) FM-MIXER 39 ceramic filter output (output impedance typical 330 Ω) AM-MIXER 40 open-collector output to IFT 1999 Aug 26 5 Philips Semiconductors Product specification Self Tuned Radio (STR) SYMBOL TEA5757; TEA5759 PIN DESCRIPTION FMRF aerial input (input impedance typical 40 Ω) AGC 44 AGC capacitor input 39 FM-MIXER 41 AM-IFI1 42 RFGND 43 FM-RFI 44 AGC handbook, full pagewidth RIPPLE 1 33 FM-IFI2 AM-RFI 2 32 AFC FM-RFO 3 31 P1 RFGND 4 30 P0 FMOSC 5 29 WRITE-ENABLE TEA5757H TEA5759H AMOSC 6 28 DATA VCC1 7 27 BUS-CLOCK TUNE 8 26 DGND VCO 9 25 XTAL 6 VCC2 22 FSI 21 AFC(p) 20 AFC(n) 19 FMDEM 18 IFGND 17 PILFIL 16 AFRO 15 23 VDDD AFLO 14 MPXI 11 MUTE 13 24 MO/ST LFI 12 AFO 10 Fig.2 Pin configuration. 1999 Aug 26 34 VSTAB(B) FMRF ground 43 35 FM-IFO1 42 FM-RFI 36 AM-IFI/O2 RFGND 37 FM-IFI1 IFT or ceramic filter input (input impedance typical 3 kΩ) 38 VSTAB(A) 41 40 AM-MIXER AM-IFI1 MHA112 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 2. The Automatic Frequency Control (AFC) is switched off. FUNCTIONAL DESCRIPTION The TEA5757; TEA5759 is an integrated AM/FM stereo radio circuit including digital tuning and control functions. 3. The counter starts counting the frequency and the tuning voltage is varied until the desired frequency roughly equals the real frequency. The radio 4. The AFC is then switched on and the counter is switched off. The AM circuit incorporates a double balanced mixer, a one-pin low-voltage oscillator (up to 30 MHz) and is designed for distributed selectivity. 5. The real frequency is more precisely tuned to the desired frequency. 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 of the AM front-end. After the AFC has tuned the real frequency to the desired frequency an in-lock signal can be generated. In order to get a reliable in-lock signal, there are two parameters measured: the field strength and the S-curve. The field strength indicates the strength of the station and by looking at the S-curve the system can distinguish false in-locks from real in-locks (false in-locks occur on the wrong slope of the S-curve). The first AM selectivity can be an IF-Tank (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 and is designed for distributed IF ceramic filters. The FM quadrature detector uses a ceramic resonator (or LC). In the event of fading or pulling the in-lock signal becomes logic 0 and the synthesizer will be switched on again and the algorithm will be repeated. The PLL stereo decoder incorporates a signal dependent stereo-blend circuit and a soft-mute circuit. SEARCH OPERATION During a search operation, the only action the microcontroller has to take is: sending the desired band plus the direction and the search sensitivity level to the STR. The search operation is performed by the charge pump until an in-lock signal is generated (combination of measuring the field strength and the S-curve). The AFC then fine tunes to the station. The frequency belonging to the found station will be counted by the counter and written into the last-station memory and the shift register of the counter. At this time the frequency is available in the shift register and can be read by the microcontroller. The microcontroller decides whether the frequency is within the desired frequency band. If so, this frequency can be stored under a preset and if not, a new search action should be started. Tuning The tuning concept of the Self Tuned Radio (STR) is based on FUZZY LOGIC: it mimics hand tuning (hand tuning is a combination of coarse and fine tuning to the qualitatively best frequency position). As a consequence the tuning system is very fast. The tuning algorithm, which is controlled by the sequential circuit (see Fig.1), is completely integrated; so there are only a few external components needed. The bus and the microcontroller can be kept very simple. The bus only consists of three wires (BUS-CLOCK, DATA and WRITE-ENABLE). The microcontroller must basically give two instructions: • Preset operation • Search operation. To ensure that the search function operates correctly under all conditions the following search sequence must be applied: PRESET OPERATION • Store the current frequency in the memory In preset mode, the microcontroller has to load information such as frequency band, frequency and mono/stereo. This information has to be sent via the bus to the STR. The internal algorithm controls the tuning sequence as follows: • Issue the search command • Wait for data valid and read the new frequency • If the new frequency is the same as the stored frequency, issue a pre-set step (e.g. 50 kHz) and start the search sequence again. 1. The information is loaded into the shift register, the last-station memory and the counter. 1999 Aug 26 7 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 Description of the bus Table 2 The TEA5757; TEA5759 radio has a bus which consists of three wires, as shown in Table 1. Table 1 BUS-CLOCK Bus signals SIGNAL DESCRIPTION PIN BUS-CLOCK software driven clock input 27 DATA data input/output 28 WRITE-ENABLE write/read input MO/ST (PIN 24) RESULT LOW LOW stereo LOW HIGH mono HIGH LOW tuned HIGH HIGH not tuned The TEA5757; TEA5759 has a 25-bit shift register; see Table 3 for an explanation of the shift register bits. 29 If in search mode no transmitter can be found, all frequency bits of the shift register are set to logic 0. These three signals, together with the mono/stereo pin (MO/ST; pin 24), communicate with the microcontroller. The mono/stereo indicator has two functions, which are controlled by the BUS-CLOCK, as shown in Table 2. Table 3 Bus-clock functions The bus protocol is depicted in Figs 3 and 4. Explanation of the shift register bits BIT S.24 (MSB) D.23 LOGIC STATE DESCRIPTION search start/end search up/down RESULT 0 after a search when a station is found or after a preset 1 during the search action 0 indicates if the radio has to search down 1 indicates if the radio has to search up M.22 mono/stereo 0 stereo is allowed 1 mono is required (radio switched to forced mono) B0.21 band see Table 4 selects FM/MW/LW/SW band port note 1 search-level of station see Table 5 determines the locking field strength during an automatic search, automatic store or manual search 15 dummy − buffer F.14 to F.0 (LSB) frequency − determine the tuning frequency of the radio; see Table 6 for the bit values B1.20 P0.19 user programmable bits which e.g. can be used as band switch driver P1.18 S0.17 S1.16 Note 1. The output pins 30 and 31 can drive currents up to 5 mA; bits P0.19 and P1.18 control the output voltage of the control pins P0 (pin 30) and P1 (pin 31): a) Bit P0.19 LOW sets P0 (pin 30) to LOW. b) Bit P0.19 HIGH sets P0 (pin 30) to HIGH. c) Bit P1.18 LOW sets P1 (pin 31) to LOW. d) Bit P1.18 HIGH sets P1 (pin 31) to HIGH. 1999 Aug 26 8 Philips Semiconductors Product specification Self Tuned Radio (STR) Table 4 Truth table for bits B0.21 and B1.20 B0.21 Table 5 TEA5757; TEA5759 B1.20 Table 6 BAND SELECT 0 0 FM 0 1 MW 1 0 LW 1 1 SW Truth table for bits S1.16 and S0.17 SIGNAL RECEPTION S1.16 S0.17 Values for bits F.14 to F.0 FM (µV) AM (µV) 0 0 >5 >28 0 1 >10 >40 1 0 >30 >63 1 1 >150 >1000 BIT BIT VALUE FM VALUE(1) (kHz) AM VALUE(2) (kHz) F.14 214 − 16384 F.13 213 102400 8192 F.12 212 51200 4096 F.11 211 25600 2048 F.10 210 12800 1024 F.9 29 6400 512 F.8 28 3200 256 F.7 27 1600 128 F.6 26 800 64 F.5 25 400 32 F.4 24 200 16 F.3 23 100 8 F.2 22 50 4 F.1 21 25 2 F.0 20 12.5 1 Notes 1. FM value of the affected oscillators: a) FM VALUE = FMRF + FMIF (for TEA5757). b) FM VALUE = FMRF − FMIF (for TEA5759). 2. AM value of the affected oscillators: AM VALUE = AMRF + AMIF. 1999 Aug 26 9 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 READING DATA WRITING DATA While WRITE-ENABLE is LOW data can be read by the microcontroller. At a rising edge of the BUS-CLOCK, data is shifted out of the register. This data is available from the point where the BUS-CLOCK is HIGH until the next rising edge of the BUS-CLOCK occurs (see Fig.3). While WRITE-ENABLE is HIGH the microcontroller can transmit data to the TEA5757; TEA5759 (hard mute is active). At a rising edge of the BUS-CLOCK, the register shifts and accepts one bit into LSB. At clock LOW the microcontroller writes data (see Fig.4). To read the entire shift register 24 clock pulses are necessary. To write the entire shift register 25 clock pulses are necessary. handbook, full pagewidth WRITE-ENABLE data read BUS-CLOCK DATA data available data available after search ready MSB is LOW data shift MBE817 Fig.3 Read data. handbook, full pagewidth WRITE-ENABLE BUS-CLOCK DATA MBE818 data shift data change Fig.4 Write data. 1999 Aug 26 10 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 BUS TIMING handbook, full pagewidth WRITE-ENABLE VIH BUS-CLOCK VIL t HIGH t LOW DATA MBE819 t da Fig.5 Bus timing. Table 7 Digital inputs SYMBOL PARAMETER MIN. MAX. UNIT Digital inputs VIH HIGH-level input voltage 1.4 − V VIL LOW-level input voltage − 0.6 V fclk clock input frequency − 300 kHz tHIGH clock HIGH time 1.67 − µs tLOW clock LOW time 1.67 − µs tda shift register available after ‘search ready’ − 14 µs Timing 1999 Aug 26 11 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER VCC1 supply voltage Ptot total power dissipation CONDITIONS Tamb = 70 °C MIN. MAX. UNIT 0 13.2 V − 250 mW Tstg storage temperature −65 +150 °C Tamb ambient temperature −15 +60 °C Tj junction temperature −15 +150 °C Ves electrostatic handling voltage for all pins − ±200 V note 1 Note 1. Charge device model; equivalent to discharging a 200 pF capacitor via a 0 Ω series resistor. THERMAL CHARACTERISTICS SYMBOL Rth(j-a) 1999 Aug 26 PARAMETER CONDITIONS thermal resistance from junction to ambient 12 in free air VALUE UNIT 65 K/W Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 CHARACTERISTICS VCC1 = 3 V; Tamb = 25 °C; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VCC1 supply voltage 2.5 − 12 V VCC2 supply voltage for tuning − − 12 V VDDD supply voltage for digital part 2.5 − 12 V Vtune tuning voltage 0.7 − VCC2 − 0.75 V ICC2 supply current for tuning in preset mode (band-end to band-end) − − 800 µA − − 300 kHz fBUS-CLOCK(max) maximum BUS-CLOCK frequency ICC1 current consumption during acquisition of VCC1 AM mode 12 15 18 mA FM mode 12.5 15.5 18.5 mA IDD current consumption during acquisition of IDD AM mode − 4.8 − mA FM mode − 5.5 − mA ICC1 current consumption after acquisition of VCC1 AM mode 12 15 18 mA FM mode 13 16 19 mA AM mode − 3.3 − mA FM mode − 2.7 − mA tsearch synthesizer auto-search time for FM mode empty band − − 10 s tacq synthesizer preset acquisition time between two band limits IDD fband current consumption after acquisition of IDD frequency band range of the synthesizer FM − 100 − ms MW − 100 − ms LW − 200 − ms SW − 500 − ms AM mode 0.144 − 30 MHz FM mode 50 − 150 MHz − − 1 kHz ∆fFM AFC inaccuracy of FM ∆fAM AFC inaccuracy of AM − − 100 Hz IP0(sink) sink current of software programmable output P0 V30 = 3 V 4 6 − mA IP1(sink) sink current of software programmable output P1 V31 = 3 V 4 6 − mA IP0(source) source current of software programmable output P0 V30 = 0 V 5 9 − mA IP1(source) source current of software programmable output P1 V31 = 0 V 5 9 − mA 1999 Aug 26 13 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 AM CHARACTERISTICS Input frequency fi = 1 MHz; m = 0.3; fm = 1 kHz; measured in test circuit at pin 10 (see Fig.9); S2 in position B; Vi1 measured at input of matching network at pin 2; matching network adjusted to maximum output voltage at low input level; Vn refers to pin voltages; Vi(n) refers to test circuit (see Fig.9); unless otherwise specified. SYMBOL PARAMETER CONDITIONS V10 AF output voltage Vi1 = 5 mV Vi1 RF sensitivity input voltage (S+N)/N = 26 dB Vi1 large signal voltage handling capacity m = 0.8; THD ≤ 8% PSRR V 10 power supply ripple rejection ---------- ∆V 7 Ii MIN. 36 TYP. 45 MAX. 70 UNIT mV 40 55 70 µV 150 300 − mV ∆V7 = 100 mV (RMS); 100 Hz; V7 = 3.0 V − −47 − dB input current (pin 2) V44 = 0.2 V − 0 − µA Ci input capacitance (pin 2) V44 = 0.2 V − − 4 pF Gc front-end conversion gain V44 = 0.2 V 5 10 14 dB V44 = 0.9 V −26 −14 0 dB (S+N)/N signal plus noise-to-noise ratio − 50 − dB THD total harmonic distortion Vi1 = 1 mV − 0.8 2.0 % α450 IF suppression V10 = 30 mV − 56 − dB FM CHARACTERISTICS Input frequency fi = 100 MHz; ∆f = 22.5 kHz; fm = 1 kHz; measured in test circuit (see Fig.9) at pin 10; S2 in position B; Vn refers to pin voltages; Vi(n) refers to test circuit (see Fig.9); unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V10 AF output voltage Vi5 RF sensitivity input voltage (S+N)/N = 26 dB 1 2 3.8 µV Vi5 RF limiting sensitivity V10 at −3 dB; V10 is 0 dB at Vi5 = 1 mV 0.4 1.2 3.8 µV Vi5 large signal voltage handling capacity THD < 5% − 500 − mV PSRR V 10 power supply ripple rejection ---------- ∆V 7 −44 − − dB Gc V 37 front-end conversion gain --------- V i5 12 18 22 dB (S+N)/N signal plus noise-to-noise ratio Vi5 = 1 mV − 62 − dB THD total harmonic distortion IF filter SFE10.7MS3A20K-A − 0.3 0.8 % 1999 Aug 26 Vi5 = 1 mV ∆V7 = 100 mV (RMS); 100 Hz; V7 = 3.0 V 14 40 48 57 mV Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 STEREO DECODER CHARACTERISTICS Vi3(L + R) = 155 mV; Vpilot = 15.5 mV; f = 1 kHz; apply unmodulated RF signal of 100 mV to front-end to set radio to maximum channel separation; soft mute off (S4 in position A); unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V14/15 AF output voltage − 160 − mV Vpilot(s) switch to stereo − 8 12 mV Vpilot(m) switch to mono 2 5 − mV VAF-L/Vi3 MPX voltage gain −1.5 − +1.5 dB (S+N)/N signal plus noise-to-noise ratio − 74 − dB Vpilot = 15.5 mV (stereo) THD total harmonic distortion − 0.5 1.0 % αcs channel separation 26 30 − dB α19 carrier and harmonic suppression 19 kHz (200 mV) = 0 dB 27 32 − dB 38 kHz 16 21 − dB α38 α mute(s) stereo-blend soft mute depth Vi5 = 200 µV 22 30 − dB Vi5 = 20 µV − 1 2 dB Vi5 = 3 µV; V14 = V15 −1 0 − dB Vi5 = 1 µV; V14 = V15 − −6 −10 dB TUNING CHARACTERISTICS SYMBOL VFM VAM PARAMETER FM voltage levels mute(h) TYP. MAX. UNIT α−3 dB-point at Vi5 = 2 µV S0 = 1; S1 = 1 60 medium (auto-store/search) S0 = 0; S1 = 1 10 low (auto-store/search) S0 = 1; S1 = 0 4 nominal (preset mode/tuning indication) S0 = 0; S1 = 0 3 AM voltage levels 500 µV 30 55 µV 10 20 µV 5 9 µV 150 α−3 dB-point at Vi5 = 2 µV high (auto-store/search) S0 = 1; S1 = 1 400 1000 2500 µV medium (auto-store/search) S0 = 0; S1 = 1 50 63 80 µV low (auto-store/search) S0 = 1; S1 = 0 32 40 50 µV S0 = 0; S1 = 0 25 28 40 µV FM mode − 3 − µV AM mode − 25 − µV WRITE-ENABLE = HIGH − 60 − dB AFC voltage off mode hard mute depth 1999 Aug 26 MIN. high (auto-store/search) nominal (preset mode/tuning indication) VAFC(off) CONDITIONS α−3 dB-point at Vi5 = 2 µV 15 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 ... 0 20 40 60 80 100 (dBµV) (dB) 0 (1) 120 9 THD (%) 8 −10 7 −20 6 −30 5 (2) 16 −40 4 −50 3 −60 2 (3) −70 −80 10−7 Philips Semiconductors −20 10 Self Tuned Radio (STR) 1999 Aug 26 handbook, full pagewidth 1 10−6 10−5 10−4 10−3 10−2 10−1 0 Vi1 (V) 1 MBE853 Product specification Fig.6 AM mode. TEA5757; TEA5759 (1) Audio signal. (2) Noise. (3) Harmonic distortion. 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 ... 20 40 60 80 100 (dBµV) 120 9 THD (%) 8 handbook, full pagewidth (dB) (1) 0 (3) −10 Philips Semiconductors 0 Self Tuned Radio (STR) 1999 Aug 26 −20 10 7 −20 6 (4) −30 5 −40 4 17 (5) −50 3 (2) −60 2 (6) −70 −80 10−7 1 10−6 10−5 10−4 10−3 10−2 10−1 0 Vi5 (V) 1 MHA115 Fig.7 FM mode. Product specification Mono signal. Noise in mono mode. Left channel with modulation left. Right channel with modulation left. Noise in stereo mode. Harmonic distortion (measured with ∆f = 75 kHz). TEA5757; TEA5759 (1) (2) (3) (4) (5) (6) Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 INTERNAL CIRCUITRY Table 8 Equivalent pin circuits and pin voltages PIN NO. DC VOLTAGE (V) PIN SYMBOL AM 1 RIPPLE 2.1 EQUIVALENT CIRCUIT FM 2.1 7 1 kΩ 1 70 pF 3 kΩ MBE821 17 2 AM-RFI 0 0 4 2 MBE822 3 FM-RFO 0 0 220 Ω 43 42 3 4 RFGND 0 0 5 FMOSC 0 0 MHA105 5 4 1999 Aug 26 18 MBE823 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN NO. TEA5757; TEA5759 DC VOLTAGE (V) PIN SYMBOL AM 6 AMOSC 0 EQUIVALENT CIRCUIT FM 0 6 MBE824 4 7 VCC1 3.0 3.0 8 TUNE − − 22 8 MBE825 26 9 VCO 1.3 0.95 1 kΩ 9 10 kΩ MBE826 17 10 AFO 0.6 0.7 10 5 kΩ 17 1999 Aug 26 19 MBE827 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN NO. TEA5757; TEA5759 DC VOLTAGE (V) PIN SYMBOL AM 11 MPXI 1.23 EQUIVALENT CIRCUIT FM 1.23 150 kΩ 150 kΩ 11 9.5 kΩ MBE828 17 12 LFI 0.1 0.8 4 kΩ 13 kΩ 12 MBE829 17 13 MUTE 0.7 0.7 7 kΩ 50 kΩ 13 MBE830 17 14 AFLO 0.65 0.65 14 5 kΩ 17 1999 Aug 26 20 MBE831 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN NO. TEA5757; TEA5759 DC VOLTAGE (V) PIN SYMBOL AM 15 AFRO 0.65 EQUIVALENT CIRCUIT FM 0.65 15 5 kΩ MBE832 17 16 PILFIL 0.95 0.95 16 10 kΩ 10 kΩ MBE833 17 17 IFGND 0 0 18 FMDEM − 1.0 180 Ω 18 910 Ω MBE834 17 19 AFC(n) − − 10 kΩ 10 kΩ 19 MHA106 1999 Aug 26 21 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN NO. TEA5757; TEA5759 DC VOLTAGE (V) PIN SYMBOL AM 20 AFC(p) − EQUIVALENT CIRCUIT FM − 10 kΩ 10 kΩ 20 MHA107 21 FSI − − 1.4 V 40 kΩ 21 12 to 34 kΩ (dependent on bits 16 and 17) 26 MBE836 22 VCC2 − − 23 VDDD 3.0 3.0 24 MO/ST − − 24 100 Ω MBE837 26 25 XTAL − − 50 kΩ 50 kΩ 50 kΩ 25 26 26 DGND 1999 Aug 26 0 0 22 MBE838 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN NO. TEA5757; TEA5759 DC VOLTAGE (V) PIN SYMBOL AM 27 BUS-CLOCK − EQUIVALENT CIRCUIT FM − 27 MBE839 26 28 DATA − − 29 WRITE-ENABLE − − 100 Ω 28 100 kΩ 50 kΩ 29 MBE840 26 30 P0 − − 23 120 Ω 100 kΩ 30 20 kΩ MHA108 26 31 P1 − − 23 120 Ω 100 kΩ 31 20 kΩ 26 1999 Aug 26 23 MHA109 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN NO. TEA5757; TEA5759 DC VOLTAGE (V) PIN SYMBOL AM 32 AFC − EQUIVALENT CIRCUIT FM − 34 20 kΩ 32 MBE842 33 FM-IFI2 − 0.73 34 140 Ω 33 6 pF 2.2 kΩ MBE843 17 34 VSTAB(B) 1.4 1.4 7 1 kΩ 1 MBE844 34 35 FM-IFO1 − 0.69 34 35 560 Ω MBE845 36 AM-IFI/O2 1.4 1.4 34 36 3.6 kΩ 17 1999 Aug 26 24 3.6 kΩ MBE846 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN NO. TEA5757; TEA5759 DC VOLTAGE (V) PIN SYMBOL AM 37 FM-IFI1 − EQUIVALENT CIRCUIT FM 0.73 38 140 Ω 37 6 pF 1.9 kΩ MBE847 17 38 VSTAB(A) 1.4 1.4 7 1 kΩ 1 MBE848 38 39 FM-MIXER − 1.0 30 pF 39 680 Ω MHA110 40 AM-MIXER 1.4 1.4 40 38 MBE850 41 AM-IFI1 1.4 1.4 38 3 kΩ 41 7.5 kΩ 17 1999 Aug 26 25 7.5 kΩ MBE851 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN NO. TEA5757; TEA5759 DC VOLTAGE (V) PIN SYMBOL AM EQUIVALENT CIRCUIT FM 42 RFGND 0 0 43 FM-RFI − 0.73 220 Ω 43 42 3 44 AGC 0.1 MHA105 0.7 1 kΩ 1 kΩ 1 kΩ 44 17 1999 Aug 26 26 MBE852 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 ... L8 (1) 10 pF TUNE L7 (2) VSTAB(A) VSTAB(B) K3 K1 3 4.7 nF (3) 5 K2 39 37 (5) (4) 100 nF 35 33 17 18 21 16 43 2.2 µF VCC1 10 kΩ L6 (6) 24 22 pF DATA BUS-CLOCK WRITE-ENABLE VSTAB(A) 12 10 Ω TEA5757; TEA5759 23 right output 27 100 nF 12 nF (12) 13 (13) 26 19 31 P1 left output 15 25 GND 100 nF 14 100 µF 75 kHz (12) 12 nF 1 220 nF 50 kΩ 68 kΩ 7 100 nF 2.2 kΩ 470 nF 9 34 VSTAB(B) VCC1 MO/ST 470 nF 42 28 27 29 38 Philips Semiconductors 18 kΩ 10 pF Self Tuned Radio (STR) 18 kΩ TUNE TEST AND APPLICATION INFORMATION 1999 Aug 26 BB804 BB804 470 nF 4.7 µF 20 30 P0 47 kΩ BB112 (14) 22 nF L1 (8) 32 2 TUNE 18 pF 6 40 41 36 10 µF L2 (9) L3 22 10 nF 10 11 4 L5 (7) 220 nF (10) 330 pF L4 (11) handbook, full pagewidth TUNE MHA113 VCC2 (10) L3 = 7P A7MCS-11844N, C = 180 pF, Q = 90, TOKO. (11) L4 = 7P A7MCS-11845Y, C = 180 pF, Q = 90, TOKO. (12) De-emphasis time constant is 50 µs: Cde-emp = 12 nF. De-emphasis time constant is 75 µs: Cde-emp = 18 nF. (13) Standard applications: ±30 ppm at 25 °C. Short wave applications: ±20 ppm at 25 °C. (14) Alternatively BB512, Siemens or KV1561A, TOKO. Product specification (1) L8 = MC117 E523FN-2000242, 38 pF ±3%, 18 pF BB112 (14) TOKO. VSTAB(A) VSTAB(B) (2) L7 = MC117 E523FN-2000242, 38 pF ±3%, 470 pF 47 kΩ TOKO. (3) K1 = SFE10.7MS3, MURATA. TUNE (4) K2 = SFE10.7MS3, MURATA. (5) K3 = CDA10.7-MG40-A, MURATA. (6) L6 = 60 nH. (7) L5 = 7P A7MCS-11845Y, C = 180 pF, Q = 90, TOKO. (8) L1 = 250 µH ferroceptor. Fig.8 Application diagram. (9) L2 = 7P 7DRS-11459N, 110 µH at 796 kHz, Q = 80, TOKO. 470 nF TEA5757; TEA5759 18 pF 8 44 VSTAB(B) 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 ... 18 kΩ 18 kΩ 10 pF TUNE 330 Ω L8 (1) 1 nF B 10 pF TUNE 50 Ω L7 (2) S5 VSTAB(B) A VSTAB(A) K3 K1 (3) K2 VCC1 (5) (4) 100 nF 10 kΩ 3 50 Ω Vi5 27 Ω 1 nF 5 39 37 35 33 17 18 21 2.2 µF 16 43 24 100 MHz 470 nF 42 DATA BUS-CLOCK WRITE-ENABLE VSTAB(A) VSTAB(B) 34 VCC1 7 2.2 kΩ 12 470 nF 28 27 29 38 9 68 kΩ (11) 14 12 nF 50 kΩ 100 nF 15 10 Ω 100 nF MO/ST 91 Ω 560 Ω TEA5757; TEA5759 23 (11) 1 220 nF 12 nF 100 nF left output right output 4.7 µF 13 100 µF Philips Semiconductors 10.7 MHz Self Tuned Radio (STR) 1999 Aug 26 50 Ω Vi4 BB804 BB804 S4 A 28 B 25 75 kHz (12) 8.2 kΩ 26 GND 19 31 P1 50 Ω 1 MHz Vi1 43 Ω 6.8 Ω 30 20 2 32 470 nF L1(6) 680 pF 6 L2 41 40 (8) 10 µF S1 A L3 (9) 8 22 10 nF 10 11 VSTAB(B) 4 L5 (7) B S2 A B A 3 kΩ 470 nF 220 nF VSTAB(A) Vi2 50 Ω L4 (10) VSTAB(B) B 330 pF S3 220 nF Vi3 TUNE VCC2 50 Ω 5 kΩ 50 Ω MPX Fig.9 Test circuit. MHA114 (11) De-emphasis time constant is 50 µs: Cde-emp = 12 nF. De-emphasis time constant is 75 µs: Cde-emp = 18 nF. (12) Standard applications: ±30 ppm at 25 °C. Short wave applications: ±20 ppm at 25 °C. (13) Alternatively BB512, Siemens or KV1561A, TOKO. Product specification 450 kHz TEA5757; TEA5759 18 pF (1) L8 = MC117 E523FN-2000242, 38 pF ±3%, 18 pF (13) TOKO. BB112 (2) L7 = MC117 E523FN-2000242, 38 pF ±3%, 470 pF TOKO. 47 kΩ (3) K1 = SFE10.7MS3, MURATA. (4) K2 = SFE10.7MS3, MURATA. TUNE (5) K3 = CDA10.7-MG40-A, MURATA. (6) L1 = 22281−30091. (7) L5 = 7P A7MCS-11845Y, C = 180 pF, Q = 90, TOKO. (8) L2 = 7P 7DRS-11459N, 110 µH at 796 kHz, Q = 80, TOKO. (9) L3 = 7P A7MCS-11844N, C = 180 pF, Q = 90, TOKO. (10) L4 = 7P A7MCS-11845Y, C = 180 pF, Q = 90, TOKO. 44 36 handbook, full pagewidth P0 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 PACKAGE OUTLINE QFP44: plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 x 10 x 1.75 mm SOT307-2 c y X A 33 23 34 22 ZE e E HE A A2 wM (A 3) A1 θ bp Lp pin 1 index L 12 44 1 detail X 11 wM bp e ZD v M A D B HD v M B 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HD HE L Lp v w y mm 2.10 0.25 0.05 1.85 1.65 0.25 0.40 0.20 0.25 0.14 10.1 9.9 10.1 9.9 0.8 12.9 12.3 12.9 12.3 1.3 0.95 0.55 0.15 0.15 0.1 Z D (1) Z E (1) 1.2 0.8 1.2 0.8 θ o 10 0o Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION REFERENCES IEC JEDEC EIAJ ISSUE DATE 95-02-04 97-08-01 SOT307-2 1999 Aug 26 EUROPEAN PROJECTION 29 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 • 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 This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our “Data Handbook IC26; Integrated Circuit Packages” (document order number 9398 652 90011). • For packages with leads on two sides and a pitch (e): – larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; There is no soldering method that is ideal for all surface mount IC packages. Wave soldering is not always suitable for surface mount ICs, or for printed-circuit boards with high population densities. In these situations reflow soldering is often used. – smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves at the downstream end. • For packages with leads on four sides, the footprint must be placed at a 45° angle to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves downstream and at the side corners. Reflow soldering 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. 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. Several methods exist for reflowing; for example, infrared/convection heating in a conveyor type oven. Throughput times (preheating, soldering and cooling) vary between 100 and 200 seconds depending on heating method. 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. Typical reflow peak temperatures range from 215 to 250 °C. The top-surface temperature of the packages should preferable be kept below 230 °C. Manual soldering Fix the component by first soldering two diagonally-opposite end leads. Use a low voltage (24 V or less) soldering iron applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C. Wave soldering Conventional single wave soldering is not recommended for surface mount devices (SMDs) or printed-circuit boards with a high component density, as solder bridging and non-wetting can present major problems. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 °C. To overcome these problems the double-wave soldering method was specifically developed. If wave soldering is used the following conditions must be observed for optimal results: 1999 Aug 26 30 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5757; TEA5759 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, HTSSOP, SMS not PLCC(3), SO, SOJ suitable suitable(2) suitable suitable LQFP, QFP, TQFP SSOP, TSSOP, VSO suitable not recommended(3)(4) suitable not recommended(5) suitable Notes 1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the Drypack information in the “Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”. 2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink (at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version). 3. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction. The package footprint must incorporate solder thieves downstream and at the side corners. 4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm. 5. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm. 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. 1999 Aug 26 31 Philips Semiconductors – a worldwide company Argentina: see South America Australia: 3 Figtree Drive, HOMEBUSH, NSW 2140, Tel. +61 2 9704 8141, Fax. +61 2 9704 8139 Austria: Computerstr. 6, A-1101 WIEN, P.O. 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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 545002/03/pp32 Date of release: 1999 Aug 26 Document order number: 9397 750 06058