INTEGRATED CIRCUITS DATA SHEET TEA6824T In Car Entertainment (ICE) car radio Preliminary specification Supersedes data of 1996 Nov 04 File under Integrated Circuits, IC01 1997 May 05 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T FEATURES • FM mixer for conversion from FM-IF1 = 72.2 MHz to FM-IF2 = 10.7 MHz • AM mixer for conversion from AM-IF1 = 10.7 MHz to AM-IF2 = 450 kHz • FM-IF gain stage • Crystal oscillator providing mixer frequencies and references for IF-counter GENERAL DESCRIPTION The TEA6824T together with the TEA6810T forms the receiver part of an AM/FM electronically tuned car radio providing FM MPX signal and AM AF signal for Car Digital Signal Processor (CDSP) applications. • FM quadrature demodulator with automatic centre frequency adjustment and THD compensation • AM-IF-amplifier and demodulator • I2C-bus transceiver with interface to enable direct data transfer to radio front-end • IF-count for AM and FM • Analog-to-digital conversion of level voltage and multi-path information • Reference frequency generation for PLL synthesizer. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA6824T 1997 May 05 VSO56 DESCRIPTION plastic very small outline package; 56 leads; face down 2 VERSION SOT190-2 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T QUICK REFERENCE DATA SYMBOL VDDA1 PARAMETER analog supply voltage 1 (+5 V; pin 5) CONDITIONS MIN. TYP. MAX. UNIT note 1 4.5 5.0 5.5 V operating range 4.75 5.0 5.25 V FM mode 17 21 25 mA IDDA1 analog supply current 1 (pin 5) 14 17 21 mA I19 + I20 total FM mixer output current (pins 19 and 20) 4.8 6.0 7.2 mA I22 + I23 total AM mixer output current (pins 22 and 23) 10 12 14 mA VDDA2 analog supply voltage 2 (pin 28) AM mode note 1 7.0 8.5 10 V operating range 8.1 8.5 8.9 V IDDA2 analog supply current 2 (pin 28) FM mode 2.4 3.0 3.6 mA VDDA3 analog supply voltage 3 (+8.5 V; pin 56) note 1 7.0 8.5 10 V operating range 8.1 8.5 8.9 V IDDA3 analog supply current 3 (pin 56) FM mode 19 25 31 mA AM mode 9.5 12 15 mA VDDD digital supply voltage 1 (+5 V; pin 5) note 1 4.5 5.0 5.5 V operating range 4.75 5.0 5.25 V IDDD digital supply current (pin 52) note 1 8 10 12 mA S+N -------------N signal plus noise-to-noise ratio FM mode; ∆f = 22.5 kHz at pin 47 66 75 − dB AM mode; m = 0.3 54 60 − dB FM mode; ∆f = 75 kHz − 0.1 0.35 % AM mode − 1.5 3.0 % −40 − +85 °C THD total harmonic distortion Tamb operating ambient temperature Note 1. IC is operating; specified parameters may deviate from limits which are valid for operating range. 1997 May 05 3 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T BLOCK DIAGRAM handbook, full pagewidth Vref SFP450 1.5 nF VCC1 10.7 MHz SFE10.7 22 100 100 nF nF 34 42 36 33 23 22 kΩ 47 µF 4.3 kΩ 1 2 38 AMAF AMSTOP 100 kΩ R51 L13 62 pF 100 kΩ R40 100 kΩ R39 MPX 33 kΩ LEVELADJ FMSTOP TR5 7PSAG-1946D = S Vref TOKO P392BC-1977Z 2.2 nF 33 kΩ 39 43 48 25 37 330 Ω 100 nF 10.7 MHz AM/FM SWITCH 35 27 FM LIMITER AM AMPLIFIER 10 nF AM DELOG AMPLIFIER 24 ÷ 2 /÷ 6 22 nF 820 kΩ 26 LEVEL DETECTOR AM MPX BUFFER AFC 220 nF 3 15 28 IF AMPLIFIER LEVEL :N5 16 AMPLIFIER 100 nF 47 kΩ 29 10.7 MHz Vref 19 20 10.7 MHz TR3 ZS369SCS-2144AJ 56 pF 72.2 MHz 17 20 kHz 13 BUFFER 9 TEA6824T ADC MULTIPATH ADC LEVEL OSCILLATOR 10 REFERENCE 11 FREQUENCY f ref 30 31 32 41 44 45 46 47 51 8 61.5 MHz PHILIPS 9922 521 00098 or Daiwa AT - 49 18 FM 14 10 nF 21 IF COUNTER 6 10 kΩ SCL n.c. n.c. n.c. 100 nF 47 µF VCC1 VCC +8.5 V VINT1 I2C-BUS 7 n.c. n.c. 22 µH 56 SDA n.c. n.c. n.c. n.c. SUPPLY VINT2 4 470 nF 10 kΩ TK COMPENSATION 12 120 kΩ 10 Ω 5 53 54 10 kΩ 330 Ω 55 10 kΩ VCCD +5 V 40 50 100 nF LEVEL SDA Fig.1 Block diagram. 1997 May 05 52 33 µF 220 nF SCL 49 330 Ω 4 100 nF 33 µF 10 Ω VCCD +5 V MHA537 VCCA +5 V Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T PINNING SYMBOL PIN SYMBOL DESCRIPTION PIN DESCRIPTION QDET1 1 demodulator tank 1 FMIFAMPOUT 29 FM-IF-amplifier output QDET2 2 demodulator tank 2 n.c. 30 not connected REFIN1 3 reference input 1 n.c. 31 not connected AGND 4 analog ground n.c. 32 not connected VDDA1 5 analog supply voltage 1 (+5 V) AMIF2IN1 33 AM-IF2 input 1 AMIF2IN2 34 AM-IF2 input 2 HFBUS1 6 HF bus 1 output; pull-up to +5 V FMIN2 35 FM limiter input 2 DCFEED 36 DC feed FM limiter HFBUS2 7 HF bus 2 output; pull-up to +5 V FMIN1 37 FM limiter input 1 XTAL1 8 crystal oscillator 1 LEVELADJ 38 level adjustment XTAL2 9 crystal oscillator 2 fref(p) 10 PLL reference frequency output p fref(n) 11 PLL reference frequency output n Iref 12 reference current input FMIF1IN1 13 72 MHz FM-IF input 1 FMIF1IN2 14 72 MHz FM-IF input 2 REFIN2 15 reference input 2 REFIN3 16 reference input 3 REFIN4 17 reference input 4 REFIN5 18 reference input 5 FMIF2OUT1 19 FM mixer output 1 FMIF2OUT2 20 FM mixer output 2 Vref 21 reference voltage input AMIF2OUT1 22 AM mixer output 1 AMIF2OUT2 23 AM mixer output 2 FMAMDEC 24 FM/AM 10.7 MHz decoupling input DEC1 25 decoupling 1 CAFC 39 AFC capacitor MPBUF 40 multi-path buffer time constant n.c. 41 not connected FMSTOP 42 FMSTOP adjustment MPXOUT 43 FM demodulator MPX output n.c. 44 not connected n.c. 45 not connected n.c. 46 not connected n.c. 47 not connected AMAFOUT 48 AM demodulator AF output DEC3 49 decoupling 3 LEVELUNWEIG 50 level unweighted output n.c. 51 not connected VDDD 52 digital supply voltage (+5 V) SDA 53 serial data input/output; pull-up to +5 V; I2C-bus SCL 54 serial clock input; pull-up to +5 V; I2C-bus DEC2 26 decoupling 2 DGND 55 digital ground FMAM10.7 27 FM/AM 10.7 MHz input VDDA3 56 VDDA2 28 analog supply voltage 2 analog supply voltage 3 (+8.5 V) 1997 May 05 5 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T handbook, halfpage VDDA3 56 1 QDET1 DGND 55 2 QDET2 SCL 54 3 REFIN1 SDA 53 4 AGND VDDD 52 5 VDDA1 n.c. 51 6 HFBUS1 LEVELUNWEIG 50 7 HFBUS2 DEC3 49 8 XTAL1 AMAFOUT 48 9 XTAL2 n.c. 47 10 fref(p) n.c. 46 11 fref(n) n.c. 45 12 Iref n.c. 44 13 FMIF1IN1 MPXOUT 43 14 FMIF1IN2 TEA6824T FMSTOP 42 15 REFIN2 n.c. 41 16 REFIN3 MPBUF 40 17 REFIN4 CAFC 39 18 REFIN5 LEVELADJ 38 19 FMIF2OUT1 FMIN1 37 20 FMIF2OUT2 DCFEED 36 21 Vref FMIN2 35 22 AMIF2OUT1 AMIF2IN2 34 23 AMIF2OUT2 AMIF2IN1 33 24 FMAMDEC n.c. 32 25 DEC1 n.c. 31 26 DEC2 n.c. 30 27 FMAM10.7 FMIFAMPOUT 29 28 VDDA2 MHA532 Fig.2 Pin configuration. 1997 May 05 6 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VDDA1 analog supply voltage 1 (pin 5) −0.3 +6.5 V VDDA2 analog supply voltage 2 (pin 28) −0.3 +12 V VDDA3 analog supply voltage 3 (pin 56) −0.3 +12 V VDDD digital supply voltage (pin 52) −0.3 +6.5 V Tstg storage temperature −55 +150 °C Tamb operating ambient temperature −40 +85 °C Ves electrostatic handling pins 8 and 9 −100 +100 V all other pins −300 +300 V note 1 Note 1. Charge device model class B: equivalent to discharging a 200 pF capacitor via a 0 Ω series resistor. CHARACTERISTICS VDDA3 = VDDA2 = 8.5 V (ref. AGND); VDDA1 = 5 V (ref. AGND); VDDD = 5 V (ref. DGND); Tamb = 25 °C; fmod = 1 kHz; ∆f = 22.5 kHz; Rg = 50 Ω; V37-35 = 10 mV; with de-emphasis = 50 µs; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Current consumption IDDA1 analog supply current 1 (pin 5) IDDA2 analog supply current 2 (pin 28) IDDA3 analog supply current 3 (pin 56) FM mode 17 21 25 mA AM mode 14 17 21 mA FM mode 2.4 3.0 3.6 mA FM mode 19 25 31 mA AM mode 9.5 12 15 mA IDDD digital supply current (pin 52) 8 10 12 mA I19 + I20 total FM mixer output current pins 19 and 20 4.8 6.0 7.2 mA I22 + I23 total AM mixer output current pins 22 and 23 10 12 14 mA AM mode FM-IF path; see Fig.3 V19-20max(p-p) maximum output voltage pins 19 to 20 (peak-to-peak value) 12 14 − V Ibias(19-20) mixer bias current pins 19 to 20 2.4 3.0 3.6 mA ILI(19-20) mixer leakage current pins 19 to 20 − − 2 µA I19IF2/V13-14IF1 conversion gain 1.65 1.9 2.2 mS Ri(13-14) input resistance between pins 13 and 14 5 7 − kΩ Ci(13-14) input capacitance between pins 13 and 14 − 3 4.5 pF Ropt optimum generator resistance − 1.2 − kΩ 1997 May 05 in AM position 7 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6824T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Ro(19-20) output resistance between pins 19 and 20 15 20 − kΩ Co(19-4); Co(20-4) output capacitance between pins 19 to 4 and pins 20 to 4 − 12 14 pF IP3 third-order intermodulation 114 124 − dBµV fosc oscillator frequency − 61.5 − MHz ∆fosc oscillator frequency spread − − 250 Hz − K−1 Oscillator ∆fosc/∆T temperature dependence of oscillator frequency R1 C0 10−6 − 30 × crystal motional resistance − − 70 Ω crystal shunt capacitance − − 5 pF V27-24max(rms) maximum input voltage for 1 dB compression point between pins 27 and 24 (RMS value) 80 110 − mV V29-4max(rms) maximum output voltage between pins 29 and 4 (RMS value) 220 320 − mV V29-4/V27-24 amplifier gain between pins 29 and 4 and between pins 27 and 24 9 12 15 dB ∆V29-4/V27-24 gain temperature dependence between pins 29 and 4 and between pins 27 and 24 − 0.05 − dB/K Ri(27-4) input resistance between pins 27 and 4 300 330 360 Ω Ci(27-4) input capacitance between pins 27 and 4 − − 5 pF Ro(29-4) output resistance between pins 29 and 4 300 330 360 Ω Co(29-4) output capacitance between pins 29 and 4 − − 5 pF Vo1-2(p-p) limiter output voltage between pins 1 and 2 (peak-to-peak value) 500 700 − mV V1-2/V37-35 limiter gain between pins 1 and 2 and between pins 37 and 35 − 80 − dB Ci(37-4) input capacitance between pins 37 and 4 − − 5 pF Ro(1-2) output resistance between pins 1 and 2 − − 1.0 kΩ Co(1-2) output capacitance between pins 1 and 2 10 15 20 pF crystal type Philips 9922 521 00098 FM-IF2 amplifier loaded with 330 Ω; see Fig.4 FM-IF2 limiter 1997 May 05 see Fig.5 8 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6824T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT FM demodulator V43-4(rms) MPX output voltage between pins 43 and 4 (RMS value) V37-35(rms) start of limiting voltage between pins 37 and 35 (RMS value) αAF = −3 dB V37-35(rms) input voltage for signal plus noise-to-noise ratio (RMS value) see Fig.6; S+N -------------- = 26 dB N S+N -------------- = 46 dB N ∆V43DC residual DC-offset voltage pin 43 160 200 240 mV − 25 40 µV − 30 45 µV − 70 100 µV − 100 1000 mV 10 30 mV 50 60 − dB 28 32 − dB ∆Ldemod = typical value; 10 µV < V37-35 < 80 µV 80 µV < V37-35 < 800 mV − ∆f = 22.5 kHz; fmodAM = 1 kHz; mAM = 30%; V37-35 = 3 to 300 mV V43FM/V43AM AM suppression pin 43 ∆V43-44AFCdis /∆V43-44AFCactive demodulator frequency control voltage (AFC) efficiency between pins 43 and 44 at 100 kHz detune from exact tuning Ro43 output resistance pin 43 − − 1.5 kΩ B43 AF bandwidth pin 43 200 − − kHz S+N -------------N signal plus noise-to-noise ratio 66 75 − dB THD total harmonic distortion at pin 43 0.1 0.35 % 1997 May 05 detuning ≤50 kHz; − ∆f = 75 kHz; fmod = 1 kHz without de-emphasis; Ldemod = typical value; V37-35 = 300 µV to 800 mV 9 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6824T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Unweighted voltage level V50-4 ∆V50-4/∆V37-35 unweighted voltage level slope of unweighted voltage level ∆V50-4/(V50-4∆T) temperature dependence see Fig.7; V38 = 2.52 V; V37-35 ≤ 2.5 µV 1.6 2.2 3.0 V V37-35 = 1.0 mV 2.7 3.4 4.7 V temperature compensation off 0.75 0.9 1.05 V/20 dB temperature compensation on 0.6 0.75 0.9 V/20 dB temperature compensation off − 5.0 − mV/VK temperature compensation on − 2.0 − mV/VK 100 µV ≤ V37-35(rms) < 300 mV; V37-35 = 1 mV; Isource(max) maximum output source current pin 50 0.3 − − mA Isink(max) maximum output sink current pin 50 −50 − − µA Ro50 output resistance pin 50 − − 300 Ω −1.8 − +1.8 V V ADJUSTMENT OF UNWEIGHTED VOLTAGE LEVEL AND Vmutaml; note 1 ∆V50 adjusting range voltage pin 50 V37-35(rms) = 10 mV V38-4 internal bias voltage − 2.6 − ∆V50-4/∆V38-4 adjusting gain − −0.9 − Ri38 input resistance pin 38 − 80 − kΩ Multi-path detector fMP multi-path detector band-pass centre frequency − 20 − kHz BMP band-pass bandwidth 7 − − kHz 4.5 5.1 5.7 V ∆V21-4/(V21-4∆T) temperature dependence − 3.3 − mV/VK Io21 − − 1 mA 12 15 − V Reference voltage Vo(21-4) output voltage I21 = −1 mA output current pin 21 AM-IF path; see Fig.9 and notes 2 and 3 V22-23max(p-p) 1997 May 05 maximum output voltage between pins 22 and 23 (peak-to-peak value) 10 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6824T PARAMETER Ibias(22-23) mixer bias current pins 22 and 23 ILI(22-23) mixer leakage current pins 22 and 23 I22IF2/V27-24IF1 CONDITIONS MIN. TYP. MAX. UNIT 5 6 7 mA − − 2 µA conversion gain 2.2 2.7 3.4 mS Ri(27-24) input resistance between pins 27 and 24 300 330 360 Ω Ci(27-24) input capacitance between pins 27 and 24 − 5 8 pF Ro(22-23) output resistance between pins 22 and 23 10 20 − kΩ Co(22-23) output capacitance between pins 22 and 23 − 5 10 pF IP3 third order intermodulation − 137 − dBµV in FM position AM DETECTOR; see notes 4 and 5 V48-4(rms) AF output level (RMS value) RL48 > 500 kΩ; 100 µV ≤ V33-34 ≤ 300 mV 190 240 290 mV V33-34(rms) sensitivity voltage (RMS value) S+N -------------- = 26 dB N − 50 75 µV S+N -------------- = 46 dB N − 200 400 µV AM-IF2 minimum input voltage (RMS value) THD ≤ 5%; m = 0.8 − − 100 µV AM-IF2 maximum input voltage (RMS value) THD ≤ 5%; m = 0.8 800 − − mV Ri(33-34) IF2 input resistance between pins 33 and 34 1.8 2.0 2.2 kΩ Ci(33-34) IF2 input capacitance between pins 33 and 34 − 10 15 pF Ro48 output resistance pin 48 27 33 39 kΩ Co48 output capacitance pin 48 − − 10 pF S+N -------------N signal-plus-noise-to-noise ratio 54 60 − dB THD total harmonic distortion − 1.5 3.0 % m = 0.8; 300 µV ≤ V33-34 ≤ 200 mV Notes to the Characteristics 1. For typical adjusting range see Fig.8. 2. fIF1 = 10.7 MHz; fIF2 = 450 kHz for AM mixer. 3. The AM oscillator signal is generated by division of the 61.5 MHz crystal oscillator. Two divider ratios programmable by the I2C-bus: division by 6 (AM-IF1 = 10.7 MHz); division by 2 (AM-IF1 = 30 MHz). 4. For typical AM level curve see Fig.10. 5. For AM detector; fAMIF2 = 450 kHz; fmod = 400 Hz; m = 30%. 1997 May 05 11 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T ADCs CHARACTERISTICS FOR LEVEL AND MULTI-PATH VOLTAGES SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT ADC for FM level information; note 1 ∆V37-35 analog-to-digital conversion step size for V37-35 2 4 8 dB/step ∆V37-35 analog-to-digital conversion level range for V37-35 43 56 69 dB variation of stop level as function of V42-4 − 16 − dB/V FM STOP ∆Vstop ADC for AM level information; note 2 ∆V33-34 analog-to-digital conversion step size for V33-34 2 4 8 dB/step ∆V33-34 analog-to-digital conversion level range for V33-34 43 56 69 dB variation of stop level as a function of V43-4 − 16 − dB/V AM STOP ∆Vstop ADC for multi-path information; note 3 m multi-path conversion step 0 − − 5 % step 1 − 15 − % step 2 − 22 − % step 3 − 28 − % step 4 − 34 − % step 5 − 40 − % step 6 − 46 − % step 7 − 52 − % Notes 1. The FM level information V50-3 is analog-to-digital converted with 4 bits. 2. The AM level information V49-4 is analog-to-digital converted with 4 bits. 3. The multi-path information V40-4 is analog-to-digital converted with 3 bits covering an IF2 amplitude modulation range m ≤ 0.6; fmod = 20 kHz. 1997 May 05 12 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio handbook, full pagewidth GENERATOR R&S SMPC Rg = 50 Ω 1:1 TEA6824T +8.5 V 19 13 3.5 3.5 TEA6824T fIF1 = 72.2 MHz 14 20 330 Ω 2 fIF2 = 10.7 MHz LOW NOISE AMPLIFIER AVD 704201 (S/N = 103 dB) SPECTRUM ANALYZER HP8568A MHA533 Fig.3 Test circuit FM mixer. handbook, full pagewidth GENERATOR R&S SMPC Rg = 50 Ω PASSIVE ATTENUATOR –6 dB RIN = 50 Ω ROUT = 330 Ω 10 nF 27 10 nF TEA6824T 24 29 330 Ω OSCILLOSCOPE PM3295A 4 MHA534 10 nF Fig.4 Test circuit IF-amplifier. handbook, full pagewidth 10 nF GENERATOR R&S SMPC Rg = 50 Ω 1 37 50 Ω 10 nF OSCILLOSCOPE PM3295A TEA6824T 35 2 10 nF 100 nF Fig.5 Test circuit limiter gain. 1997 May 05 13 MHA535 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T MHA248 20 handbook, full pagewidth V43-4 (dB) (1) 0 –20 –40 –60 (2) –80 10 –3 10 –2 10 –1 1 10 2 10 10 3 V37-35 (mV) (1) AF: fIF = 10.7 MHz; deviation = 22.5 kHz; fmod = 1 kHz. (2) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs. Fig.6 Signal and noise of unmuted MPX voltage. MHA249 10 handbook, full pagewidth V50-4 (V) 8 6 (1) 4 (2) 2 0 10 –3 10 –2 10 –1 1 10 10 2 10 3 V37-35 (mV) (1) Temperature compensation off. (2) Temperature compensation on. Fig.7 Unweighted voltage level (typical curve). 1997 May 05 14 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T MHA250 10 handbook, full pagewidth V50-4 (V) 8 6 4 2 0 10 –3 10 –2 10 –1 1 10 10 2 10 3 V37-35 (mV) Fig.8 Adjustment range of unweighted voltage level. +8.5 V handbook, full pagewidth GENERATOR R&S SMPC Rg = 50 Ω fIF1 = 10.7 MHz 270 Ω 10 nF 27 22 7 7 TEA6824T 24 10 nF 23 20 2.2 kΩ 22 nF Fig.9 Test circuit AM mixer. 1997 May 05 15 LOW NOISE AMPLIFIER AVD 704201 (S/N = 103 dB) SPECTRUM ANALYZER HP8568A MHA536 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T MHA214 20 handbook, full pagewidth V48-4 (dB) 8 (1) 0 THD (%) 6 (4) –20 4 –40 (2) 2 –60 (3) 0 –80 10 –3 10 –2 10 –1 1 10 10 2 10 3 V33-34 (mV) (1) AF: f = 450 kHz; m = 30%; fmod = 400 Hz. (2) Noise: unweighted B = 250 Hz to 15 kHz. (3) THD m = 80%. (4) AM level voltage. Fig.10 Signal, noise and distortion of AM AF output voltage and AM voltage level (typical curve). When writing to the transceiver by using the STOP condition before completion of the whole transfer: I2C-BUS AND I2C-BUS CONTROLLED FUNCTIONS I2C- bus specification • The remaining bytes will contain the old information The standard I2C-bus specification is expanded by the following definitions. • If the transfer of a byte was not completed, this byte is lost and the previous information is available. Structure of the I2C-bus logic: slave transceiver with auto increment and expansion to switch a direct transfer of all transmissions to an output for the radio front-end IC TEA6810T. DATA TRANSFER TO AN OUTPUT OF THE FRONT-END IC Sub-addresses are not used. A data bit in the transceiver of the TEA6824T enables or disables a direct transfer of all transmissions to an interface stage for the front-end IC. DATA TRANSFER FOR THE TEA6824T For a transmission to the front-end IC the address and the data format of the front-end IC has to be used. Data sequence: Remark: The pull-up resistors for the front-end interface (pins 6 and 7) should not be connected to the +5 V supply voltage of the front-end IC, otherwise a bus pull-down (pin 53) can occur during switching off the front-end supply when the interface stage is enabled. • Address • Byte 1 • Byte 2. The data transfer may only be in this order. The transfer direction of the data bytes is defined by the LSB of the address. DATA TRANSFER TO THE IF IC Data transfer to the IF IC (TEA6824T) is independent of the state of interface stage for the front-end IC. The data becomes valid at the output of the internal latches with the acknowledge of each byte. A STOP condition after any byte can shorten transmission times. 1997 May 05 16 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio Table 1 TEA6824T Structure of the I2C-bus DESCRIPTION Table 4 BIT SPECIFICATION Bus address of the TEA6824T 1100001X Subaddress not used Hardware (pin) programmable address bits not available 0 1 2 Default settings by data byte 1 bits 4 to 7 are set to power-on reset logic 0; all other bits are random Table 2 DESCRIPTION not used − 1 LSB reference frequency for synthesizer − 2 reference frequency for synthesizer 3 RESULT AM/FM; AM mode bit 0 = 0 AM/FM; FM mode bit 0 = 1 divider for AM mixer; divide-by-2 bit 1 = 0 divider for AM mixer; divide-by-6 bit 1 = 1 measure time IF-count; 40 ms bit 2 = 0 measure time IF-count; 4 ms bit 2 = 1 not used 4 IF-prescaler division rate; divide-by-200 bit 4 = 0 IF-prescaler division rate; divide-by-25 bit 4 = 1 RESULT 0 DESCRIPTION 3 Data to be received by the IC for data byte 1 BIT Data to be received by the IC for data byte 2 5 not used 6 − temperature compensation of unweighted voltage level; temperature coefficient as specified in Chapter “Characteristics” MSB reference frequency for synthesizer − temperature compensation off bit 6 = 0 bit 6 = 1 4 not used − temperature compensation on 5 not used − 6 not used − 7 I2C-bus to front-end ENABLED bit 7 = 1 I2C-bus bit 7 = 0 Table 3 to front-end DISABLED 7 Reference frequency setting in byte 1; see Table 1 not used Table 5 Data to be transmitted by the IC for data byte 1; note 1 BIT DESCRIPTION 0 bit 1 level information 1 bit 2 level information 2 MSB (bit 3) level information 3 LSB multi-path information BIT 3 BIT 2 BIT 1 FREQUENCY SETTING 0 0 0 3 kHz 4 multi-path information 0 0 1 5 kHz 5 MSB multi-path information 0 1 0 10 kHz 6 not used 0 1 1 15 kHz 7 LSB (bit 0) level information 1 0 0 25 kHz 1 0 1 50 kHz 1 1 0 not defined 1 1 1 not defined 1997 May 05 Note 1. The analog-to-digital conversion for multi-path and level will be performed during a transmission of any address to the I2C-bus. 17 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio Table 6 Data to be transmitted by the IC for data byte 2 BIT DESCRIPTION 0 LSB of the IF-counter 1 IF-counter 2 TEA6824T REFERENCED FREQUENCY GENERATION Table 7 Division ratios DIVISION RATIO REFERENCE FREQUENCY (kHz)(1) IF-counter 20500 3 3 IF-counter 12300 5 4 IF-counter 6150 10 5 IF-counter 4100 15 6 IF-counter 2460 25 7 MSB of the IF-counter 1230 50 Note 1. All specified frequencies are valid for a crystal oscillator frequency of 61.5 MHz. Table 8 Output signal of reference frequency divider SYMBOL V10-11(p-p) PARAMETER MIN. differential output voltage between pins 10 and 11 (peak-to-peak value) 0.3 V10-4(p-p); V11-4(p-p) single-ended output voltage between pins 10 and 4 0.15 and between pins 11 and 4 (peak-to-peak value) TYP. MAX. UNIT 0.4 0.5 V 0.2 0.3 V C10-4; C11-4 output capacitance between pins 10 and 4 and between pins 11 and 4 − − 4 pF R10-52; R11-52 output resistance between pins 10 and 52 and between pins 11 and 52 800 1000 1200 Ω IF-COUNTER Table 9 IF-counter sensitivity SYMBOL PARAMETER CONDITIONS MIN. UNIT V33-34 IF-counter sensitivity AM mode; m = 0 200 µV V37-35 IF-counter sensitivity FM mode 200 µV AM and FM counting windows are 4 or 40 ms. AM counting resolution is 250 or 25 Hz. FM counting resolution is 5 kHz, 625 Hz, 50 kHz or 6.25 kHz. AM-IF-prescaler is divisible by 1. FM-IF-prescaler is divisible by 25 or 200. 1997 May 05 18 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T B0 B1 B2 B3 B4 B5 B6 B7 handbook, full pagewidth FM IF2 FM IF-PRESCALER ÷ 25 /÷ 200 8-BIT BINARY COUNTER prescaler setting MHA205 4 ms/40 ms counter window AM IF2 Fig.11 IF-counter structure. IF-counter read out IF-counter read out as a function of FM or AM position, counter window and prescaler setting RANGE (kHz) PRESCALER RATIO WINDOW (ms) fIF (kHz) READ OUT FM 200 4 10700 D6H FM 200 40 10700 5CH 5000 10065 11335 FM 25 4 10700 B0H 6250 9906.25 11493.75 FM(1) 25 40 10700 E0H 625 10620.63 10779.38 FM/AM RESOLUTION (Hz/count) MIN. MAX. 50000 4300 17050 AM 1 4 450 08H 250 418.25 481.75 AM(1) 1 40 450 50H 25 446.83 453.18 Note 1. In position FM with a prescaler ratio of 25, counter window of 40 ms and in position AM with 40 ms counter window ambiguous counting results within the IF filter bandwidth are obtained. The counting range is 127 counts above and 127 counts below the nominal IF of 10.7 MHz for FM and 450 kHz for AM. The IF-count windows are valid for a crystal oscillator frequency of 61.5 MHz. The FM/AM switching is carried out by bit 0 of byte 2 of the received data of the IC. The IF-counter operates continuously. The IF-counter and window counter will be reset when the I2C-bus logic detects the address of the IC. This disables changes in the latches for the IF-counter, while reading this value. If the transmission to the front-end IC is disabled after the synthesizer loop of the TEA6810T front-end IC has locked to a new frequency, the IF-counter will be available after the set measuring time. The IF-counter starts at 0. The IF-counter output are the 8 least significant bits of the counting result. 1997 May 05 19 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T INTERNAL CIRCUITRY Table 10 Equivalent pin circuits and pin voltages DC VOLTAGE (V) PIN SYMBOL EQUIVALENT CIRCUIT AM FM 1 QDET1 4.0 4.0 2 QDET2 4.0 4.0 1 39 2 MHA164 3 REFIN1 0 0 3 MHA165 4 AGND − − 5 VDDA1 5.0 5.0 6 HFBUS1 5.0 5.0 6 MHA166 7 HFBUS2 5.0 5.0 7 MHA167 1997 May 05 20 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T DC VOLTAGE (V) PIN SYMBOL EQUIVALENT CIRCUIT AM FM 8 XTAL1 4.1 4.1 9 XTAL2 4.1 4.1 8 9 MHA168 10 fref(p) 4.9 4.9 11 fref(n) 4.9 4.9 10 11 MHA169 12 Iref 4.3 4.3 12 MHA170 13 FMIF1IN1 2.3 2.3 14 FMIF1IN2 2.3 2.3 19 14 20 13 MHA171 1997 May 05 21 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T DC VOLTAGE (V) PIN SYMBOL EQUIVALENT CIRCUIT AM 15 REFIN2 4.9 FM 4.9 15 MHA172 16 REFIN3 4.9 4.9 16 MHA173 17 REFIN4 4.9 4.9 17 MHA174 18 REFIN5 4.9 4.9 18 MHA175 19 FMIF2OUT1 8.5 8.5 20 FMIF2OUT2 8.5 8.5 19 14 20 13 MHA171 1997 May 05 22 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T DC VOLTAGE (V) PIN SYMBOL EQUIVALENT CIRCUIT AM 21 Vref 5.1 FM 5.1 21 MHA176 22 AMIF2OUT1 8.5 8.5 23 AMIF2OUT2 8.5 8.5 22 23 MHA177 24 FMAMDEC 3.0 2.5 24 MHA178 25 DEC1 2.8 to 7.0 2.8 to 7.2 25 MHA179 26 DEC2 0.4 0.4 to 7.0 26 MHA180 1997 May 05 23 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T DC VOLTAGE (V) PIN SYMBOL EQUIVALENT CIRCUIT AM 27 FMAM10.7 3.0 FM 2.5 27 MHA181 28 VDDA2 8.5 8.5 29 FMIFAMPOUT 6.0 6.0 29 MHA182 30 n.c. 31 n.c. 32 n.c. 33 AMIF2IN1 2.7 0.7 34 AMIF2IN2 2.7 0.7 33 34 MHA186 35 FMIN2 0.7 2.7 35 MHA187 36 DCFEED 2.7 2.7 37 FMIN1 0.7 2.7 36 37 MHA188 1997 May 05 24 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T DC VOLTAGE (V) PIN SYMBOL EQUIVALENT CIRCUIT AM 38 LEVELADJ 2.6 FM 2.6 38 MHA189 39 CAFC 1.0 to 2.2 1.0 to 7.0 1 39 2 MHA164 40 MPBUF 0.7 to 6.0 0.7 to 6.0 40 MHA190 41 n.c. 42 FMSTOP 0 to 5.2 0 to 5.2 42 MHA192 43 MPXOUT 0 to 5.2 3.0 43 MHA193 44 n.c. 45 n.c. 46 n.c. 47 n.c. 1997 May 05 25 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T DC VOLTAGE (V) PIN SYMBOL EQUIVALENT CIRCUIT AM 48 AMAFOUT 3.7 FM 4.8 48 MHA198 49 DEC3 1.0 to 5.5 1.0 to 5.5 49 MHA721 50 LEVELUNWEIG 1.0 to 7.0 1.0 to 7.0 50 MHA200 51 n.c. 52 VDDD 5.0 5.0 53 SDA 5.0 5.0 53 MHA202 54 SCL 5.0 5.0 54 MHA203 55 DGND 0 0 56 VDDA3 8.5 8.5 1997 May 05 26 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T APPLICATION INFORMATION 47 Ω 220 nF ook, full pagewidth 2.2 MΩ 10 pF 6.8 µH 100 nF 3.3 µH VCC +8.5 V 220 µH 33 µH 470 Ω 220 Ω 10 nF 270 pF 270 pF 8.2 pF 100 Ω 470 Ω 388BN-1211Z 47 mH 100 pF 26 22 pF 25 100 pF 27 1 µF 28 33 µF AM RF AM/FM E543SNAS -04011 47 kΩ AGC 29 1SV 172 :N2 47 kΩ 22 Ω VCC +8.5 V 22 nF E543SNAS -02010 L7 BB135 B C 30 AGC FM 11 AM/FM 100 µF 1.8 pF PIN DIODE 34 DRIVE PROGRAMABLE DIVIDER 1 BUFFER 6 PHASE DETECTOR 38 I2C-BUS CONTROL 36 4 to 10 pF 47 pF 12 nF 100 nF 3.6 kΩ 3.3 nF 100 nF F 4 SDA 5 SCL 10 17 20 3 14 IN-LOCK AM/FM 13 100 nF 47 µF 3.3 µH VCCA +5 V +8.5 V Fig.12 Application diagram (continued in Fig.13). 1997 May 05 27 H 100 nF VCC +8.5 V MHA538 G 10 kΩ 10 kΩ 8 LOCK CHARGE 40 PUMP DETECTOR E 7 2 9 AM/FM 10 kΩ D 56 pF 39 2.2 kΩ ZS369SCS-2144AJ BUFFER 37 AM/FM 2.7 pF 35 OSCILLATOR 1.8 pF TR2 12 10 pF 1 µF 1 nF P392BE-2049AJ = S 22 Ω TEA6810T 31 22 Ω A TR4 330 pF LIMITER 32 10 µF 330 pF AM 1 µF 10 pF BB804 1 nF BAND- 21 GAP 16 33 L1 100 nF 19 15 220 kΩ 330 nH 5.6 pF 47 µF AM/FM 26 BAV 99 1 mH 18 22 100 nF BF861 6.8 pF 68 µH I VCCD +5 V Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio 68 Ω 2.7 kΩ 10 nF SFE10.7 TR5 BF840 22 390 Ω 27 Ω LEVELADJ 100 kΩ 100 R39 nF 100 nF 100 kΩ R40 36 MPX AMAF 33 kΩ AMSTOP 100 kΩ R51 L13 62 pF 47 µF 22 kΩ 34 42 33 23 FMSTOP Vref TOKO P392BC-1977Z 4.3 kΩ 1 2 38 10 nF 2.2 nF 33 kΩ 39 43 48 25 37 330 Ω AM/FM SWITCH 35 100 nF A Vref 7PSAGSFP450 1946D = S 1.5 nF 330 Ω SFE10.7 handbook, full pagewidth 1 kΩ +8.5 V TEA6824T 27 FM LIMITER AM AMPLIFIER AM 10 nF AM DELOG AMPLIFIER ÷ 2 /÷ 6 22 nF 820 kΩ 26 LEVEL DETECTOR 24 SFE10.7 MPX BUFFER AFC 220 nF 3 15 28 IF AMPLIFIER LEVEL :N5 16 AMPLIFIER 100 nF 47 kΩ 29 Vref 19 B 17 20 C ZS369SCS-2144AJ D TR3 20 kHz 13 56 pF 18 FM 14 BUFFER 30 31 32 41 44 45 46 47 51 TEA6824T 10 nF 8 PHILIPS 9922 521 00098 or Daiwa AT - 49 9 ADC MULTIPATH ADC LEVEL OSCILLATOR 61.5 MHz 10 E REFERENCE 11 FREQUENCY F 21 IF COUNTER H SDA 6 SCL 7 n.c. n.c. n.c. n.c. n.c. 22 µH 56 G n.c. n.c. n.c. n.c. 100 nF VINT1 I2C-BUS SUPPLY VINT2 TK COMPENSATION 4 12 470 nF 120 kΩ 10 Ω 5 53 54 10 kΩ 330 Ω 55 40 50 49 52 33 µF 330 Ω 100 nF 47 µF I 10 kΩ 220 nF SCL 100 nF LEVEL SDA Fig.13 Application diagram (continued from Fig.12). 1997 May 05 +8.5 V 47 µF 28 10 Ω VCCD +5 V MHA539 VCCA +5 V 3.9 kΩ 2.2 kΩ 22 µH P392BC-1977Z 56 1 40 4.3 kΩ 62 pF 10 Ω 33 µH 1 100 nF 47 µF L13 330 Ω 22 nF 100 nF 33 µF 100 nF SDA 10 k Ω 10 kΩ 330 Ω 5 1.8 pF 10 Ω 5 LEVEL 100 nF 35 1.4 to 10 pF 1.8 pF 50 SCL 2.7 pF 10 k Ω 1 µF 61.5 MHz 10 nF AMAF 47 kΩ 10 k Ω 220 kΩ 2.2 nF 10 100 pF 6.8 pF Fref 1 µF 330 nH BB 804 5.6 pF L1 100 nF 10 pF TEA6810T 29 220 µH 3.3 µH 100 nF 47 µF 220 Ω 100 nF 15 MPX 15 FMSTOP 25 47 µF LEVELADJ SFE10.7 47 k Ω 22 pF 8.2 pF 20 100 nF Vref 330 Ω 7PSAG-1946D = S 470 Ω 20 21 100 nF 35 1.5 nF 100 nF 100 nF TR5 470 Ω 22 nF 33 µH 68 µH 10 nF 2.7 kΩ 1 mH 220 nF 10 nF 47 µF SFE10.7 390 Ω 820 k Ω 27 Ω 30 100 nF 28 Fig.14 AM/FM car radio receiver with TEA6810T and TEA6824T. 29 SFE10.7 MHA540 TEA6824T SFP450 330 Ω Preliminary specification 270 pF 68 Ω BF840 25 270 pF handbook, full pagewidth 2.2 MΩ Vref R40 100 kΩ 22 kΩ 100 pF 47 mH 388BN-1211Z 33 kΩ 40 PS392BE2049AJ = S BF861A 100 Ω R39 220 nF TR4 330 pF AMSTOP 100 kΩ R51 100 kΩ 22 nF 330 pF BAV 99 33 kΩ TEA6824T 10 nF 100 nF 1 µF 3.3 µH 56 pF 56 pF 33 µF 1 nF 45 120 kΩ TR3 TR2 30 220 nF 10 pF 470 nF S369SCS-2144AJ (2x) 10 10 pF E543SNAS -4011 47 kΩ VCCD +5 V 33 µ F SDA E543SNAS-02010 L7 1SV172 VCC +8.5 V SCL BB135 47 pF VCCA +5 V 22 Ω 3.3 nF 10 kΩ 100 nF 10 nF VCC +8.5 V Philips Semiconductors 100 µF VCCD +5 V In Car Entertainment (ICE) car radio 1997 May 05 lock detector Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T PACKAGE OUTLINE VSO56: plastic very small outline package; 56 leads; face down SOT190-2 HE y v M A X c D A E Z 56 29 L Lp θ A1 (A 3) A2 A Q pin 1 index detail X 1 28 w M bp e 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) mm 3.3 0.3 0.1 3.0 2.8 0.25 0.42 0.30 0.22 0.14 21.65 21.35 11.1 11.0 0.75 15.8 15.2 2.25 1.6 1.4 1.45 1.30 0.2 0.1 0.1 0.90 0.55 0.13 0.012 0.004 0.12 0.11 0.01 0.017 0.0087 0.85 0.012 0.0055 0.84 inches 0.44 0.62 0.0295 0.43 0.60 0.063 0.089 0.055 0.057 0.035 0.008 0.004 0.004 0.051 0.022 θ Note 1. Plastic or metal protrusions of 0.3 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION REFERENCES IEC JEDEC EIAJ ISSUE DATE 96-04-02 97-08-11 SOT190-2 1997 May 05 EUROPEAN PROJECTION 30 o 7 0o Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T SOLDERING Wave soldering Introduction Wave soldering techniques can be used for all VSO packages if the following conditions are observed: There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. 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. • 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. 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). 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. Reflow soldering Reflow soldering techniques are suitable for all VSO packages. 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. 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. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. 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. 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. Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 minutes at 45 °C. 1997 May 05 31 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T 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 PURCHASE OF PHILIPS I2C COMPONENTS Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the components in the I2C system provided the system conforms to the I2C specification defined by Philips. This specification can be ordered using the code 9398 393 40011. 1997 May 05 32 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T NOTES 1997 May 05 33 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T NOTES 1997 May 05 34 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6824T NOTES 1997 May 05 35 Philips Semiconductors – a worldwide company Argentina: see South America Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 Austria: Computerstr. 6, A-1101 WIEN, P.O. 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No. 5, 80640 GÜLTEPE/ISTANBUL, Tel. +90 212 279 2770, Fax. +90 212 282 6707 Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7, 252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461 United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes, MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421 United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel. +1 800 234 7381 Uruguay: see South America Vietnam: see Singapore Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD, Tel. +381 11 625 344, Fax.+381 11 635 777 For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 Internet: http://www.semiconductors.philips.com © Philips Electronics N.V. 1997 SCA54 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 547027/1200/02/pp36 Date of release: 1997 May 05 Document order number: 9397 750 01772