Philips CEM5000/00 Service Manual Download Page 63 | Manualshive

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1.0 DESCRIPTION

The TDA7703/TDA7703R, a.k.a. HIT44,
belong to the HIT (Highly Integrated Tuner)
family, a new generation of high performance
tuners for carradio applications.
They contain mixers and IF amplifiers for AM
and FM, fully integrated VCO and PLL
synthesizer, IF-processing including adaptive
bandwidth control and Stereodecoder. The
TDA7703R contains additionally an on-chip

RDS decoder with group and block
synchronization.

The utilization of digital signal processing
results in numerous advantages against
today’s tuners:

•

Very low number of external components

•

Very small space and easy application

•

Very high selectivity due to digital filters

•

High flexibility by software control

•

Automatic

alignment

2.0 FUNCTIONAL BLOCK DIAGRAM

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Summary of Contents for CEM5000/00

Page 1: ...l system or transmitted in any form or by any means electronic mechanical photocopying or otherwise without the prior permission of Philips CONTENTS Technical specification 1 2 Service measurement setup 1 3 Service aids 1 4 Instructions on CD playability 2 1 2 2 Block diagram 3 1 Wiring diagram 4 1 Main board Circuit diagram 5 1 5 5 Layout diagram 5 6 5 7 Panel board Circuit diagram 6 1 Layout dia...

Page 2: ...oofer output voltage 2 0 V USB play mode 61 Hz 0 dB 10 k load Aux in level 500 mV Dimensions W x H x D 188 x 58 x 212 mm Weight 1 67 kg Opera on temperature 20 c 70 c Radio Frequency range FM 87 5 108 0 MHz Europe 87 5 107 9 MHz American Frequency range AM MW 522 1620 KHz Europe 530 1710 HKz American Usable sensi vity FM 8 V Type Versions Features Board in used CEM5000 Service policy SERVO BOARD M...

Page 3: ...15kHz e g 7122 707 48001 LF Voltmeter e g PM2534 DUT S N and distortion meter e g Sound Technology ST1700B Frame aerial e g 7122 707 89001 Tuner AM MW LW To avoid atmospheric interference all AM measurements have to be carried out in a Faraday s cage Use a bandpass filter or at least a high pass filter with 250Hz to eliminate hum 50Hz 100Hz RF Generator e g PM5326 Ri 50 Bandpass 250Hz 15kHz e g 71...

Page 4: ...ng make sure that you are connected with the same potential as the mass of the set via a wrist wrap with resistance Keep components and tools also at this potential ESD CLASS 1 LASER PRODUCT GB Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used Safety components are marked by the symbol Lead free ...

Page 5: ...T OK check playability N Y playability ok check playability check playability return set Customer complaint CD related problem fast lens cleaning 1 2 3 For flap loaders access to CD drive possible cleaning method 4 is recommended INSTRUCTIONS ON CD PLAYABILITY 2 1 Exchange CDM 1 4 For description see following pages ...

Page 6: ...viously caused by a scratched dirty or copy protected CD In case problems remain the customer is requested to contact the workshop directly The lens cleaning method 3 should be mentioned in the addendum sheet The final wording in national language as well as the printing is under responsibility of the Regional Service Organizations 4 LIQUID LENS CLEANING Because the material of the lens is synthet...

Page 7: ...SET BLOCK DIAGRAM 3 1 3 1 ...

Page 8: ...SET WIRING DIAGRAM 4 1 4 1 ...

Page 9: ...5 1 5 1 CIRCUIT DIAGRAM MAIN BOARD PART 1 ...

Page 10: ...5 2 5 2 CIRCUIT DIAGRAM MAIN BOARD PART 2 ...

Page 11: ...CIRCUIT DIAGRAM MAIN BOARD PART 3 5 3 5 3 ...

Page 12: ...CIRCUIT DIAGRAM MAIN BOARD PART 4 5 4 5 4 ...

Page 13: ...CIRCUIT DIAGRAM MAIN BOARD PART 5 5 5 5 5 ...

Page 14: ...5 6 LAYOUT DIAGARM MAIN BOARD TOP SIDE VIEW 5 6 ...

Page 15: ...LAYOUT DIAGARM MAIN BOARD BOTTOM SIDE VIEW 5 7 5 7 ...

Page 16: ...32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 P3 87 88 VDD 89 VLCD 90 VLCD0 91 VLCD1 92 VLCD2 93 VLCD3 94 VLCD4 95 VSS 96 OSC 97 INH 98 CE 99 CLK 100 DI IC901 PT6578LQ PT6578LQ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38...

Page 17: ...LAYOUT DIAGRAM PANEL BOARD 6 2 6 2 ...

Page 18: ...CIRCUIT DIAGRAM SERVO BOARD PART 1 7 1 7 1 ...

Page 19: ...CIRCUIT DIAGRAM SERVO BOARD PART 2 7 2 7 2 ...

Page 20: ...LAYOUT DIAGRAM SERVO BOARD TOP SIDE VIEW 7 3 7 3 ...

Page 21: ...LAYOUT DIAGRAM SERVO BOARD BOTTOM SIDE VIEW 7 4 7 4 ...

Page 22: ...9 1 Revision list Version1 0 3141 785 35010 Initial Release Version1 1 3141 785 35011 new 51 added ...

Page 23: ... pin 22 Built in Standby switch function pin 4 Built in Self diagnosis function pin 25 Signal output in case of output offset detection shorting to VCC shorting to ground and load shorting Electric mirror noise decrease Built in various protection circuit shorting to ground shorting to VCC load shorting over voltage and thermal shut down No external anti oscillation part necessary Note1 Please do ...

Page 24: ...rical Characteristics at Ta 25 Vcc 14 4V RL 4Ω f 1kHz Rg 600Ω Parameter Symbol Conditions min typ max Unit Quiescent current Icco RL Rg 0Ω 200 400 mA Standby current Ist Vst 0V 10 uA Voltage gain VG Vo 0dBm 25 26 27 dB Voltage gain difference VG 1 1 dB Output power Po THD 10 23 28 W Pomax1 JEITA max 43 W Pomax2 Vcc 15 2 JEITA max 48 W Output offset voltage Vn offset Rg 0Ω 100 100 mV Total harmonic...

Page 25: ...ircuit The components and constant values within the test circuit are used for confirmation of characteristics and are not guarantees that incorrect or trouble will not occur in application equipment te circ it i le ilter rotective circ it D D D D D te cc cc Lo Level te D cc rotective circ it D tan itch D L L L L a ...

Page 26: ...d potential enabling audio muting The muting function is turned on by the applied voltage of 1V or less to the resistance of 10kΩ And the muting function is turn off when this pin opens Also the time constant of the muting function is determined by external capacitor and resistor constants It is concerned with a pop noise in amplifier ON OFF and mute ON OFF After enough examination please set it 3...

Page 27: ...e varies 6 Pop noise For pop noise prevention it is recommended to use the muting function at the same time Please turn on the muting function simultaneously with power supply on when the amplifier is turned on Next turn off the muting function after the output DC potential stabilization When the amplifier is turn off turn off the power supply after turning on the muting function Oscillation Stabi...

Page 28: ... THD 10 all channel is similar THD Po f 1kHz 0 01 0 1 1 10 0 1 1 10 100 Po W THD ch1 ch2 ch3 ch4 Vcc 14 4V RL 4Ω f 1kHz THD f 0 01 0 1 1 10 10 100 1000 10000 100000 f Hz THD ch1 ch2 ch3 ch4 Vcc 14 4V RL 4Ω Po 4W THD Po f 100Hz 0 01 0 1 1 10 0 1 1 10 100 Po W THD ch1 ch2 ch3 ch4 Vcc 14 4V RL 4Ω f 100Hz THD Po f 10kHz 0 01 0 1 1 10 0 1 1 10 100 Po W THD ch1 ch2 ch3 ch4 Vcc 14 4V RL 4Ω f 10kHz Po f T...

Page 29: ...R 0 20 40 60 80 10 100 1000 10000 100000 fR Hz SVRR dB ch1 ch2 ch3 ch4 Vcc 14 4V VccR 0dBm Rg 0Ω RL 4Ω CVcc 0 1μF CH Sep f CH1 0 20 40 60 80 10 100 1000 10000 100000 f Hz CH sep dB ch1 ch2 ch1 ch3 ch1 ch4 Vcc 14 4V RL 4Ω Rg 10kΩ Vo 0dBm CH Sep f CH2 0 20 40 60 80 10 100 1000 10000 100000 f Hz CH sep dB ch2 ch1 ch2 ch3 ch2 ch4 Vcc 14 4V RL 4Ω Rg 10kΩ Vo 0dBm CH Sep f CH3 0 20 40 60 80 10 100 1000 1...

Page 30: ...W Vcc 14 4V Vcc 16V f 1kHz RL 4Ω Pd Vcc Icc Po 4ch Offset DIAG Vcc 0 1 2 3 4 8 10 12 14 16 18 Vcc V Vosdet V RL 4Ω R 0Ω Detection Level Mute ATT V Mute 0 20 40 60 80 100 0 0 1 0 2 0 3 0 4 0 5 0 V Mute V Mute ATT dB Vcc 14 4V RL 4Ω Vo 20dBm Icco Vst 0 50 100 150 200 250 0 0 1 0 2 0 3 0 4 0 5 0 Vst V Icco mA Vcc 14 4V RL Open R 0Ω ...

Page 31: ......

Page 32: ...MULTIPLEXER InGain AutoZero I2C BUS DIGITAL CONTROL OUTSW OUTLR2 MUTE Loudness Middle Treble Bass SoftMute Softstep Volume Softstep MonoFader Softstep MonoFader Softstep MonoFader SUPPLY VDD CREF GND SDA SCL DIFFG DIFFL SE1R SE1L DIFFR SE2L SE2R Spectrum Analyzer Softstep MonoFader Subwoofer LPF Mix Mix MIX OUTSW OUTRR2 HPF HPF Softstep MonoFader Softstep MonoFader AC2INL SE3L AC2INR SE3R ACOUTL A...

Page 33: ...all Filters flat 60 dB Symbol Parameter Value Unit RTh j pins Thermal Resistance Junction pins max 85 C W Symbol Parameter Value Unit Vs Operating Supply Voltage 10 5 V Tamb Operating Temperature Range 40 to 85 C Tstg Storage Temperature Range 55 to 150 C ACOUTR AC2OUTR ACINR FILOR ACINL FILOL ACOUTL AC2OUTL SE3L ACINL SE2L SE3R ACINR SE2R SE1L OUTLF MUTE SCL VDD SDA SAIN SAOUT VREF MIX OUTSW OUTR...

Page 34: ...e ended input 2 right channel I 9 SE1L Single ended input 1 left channel I 10 SE1R Single ended input 1 Right channel I 11 DIFFL Pseudo differential stereo input left I 12 DIFFG Pseudo differential stereo input common I 13 DIFFR Pseudo differential stereo input right I 14 CREF Reference capacitor O 15 GND Ground S 16 OUTSW OUTLR2 Subwoofer output 2nd rear left output O 17 OUTRF Front right output ...

Page 35: ...e with 1dB resolution Middle 2nd order frequency response center frequency programmable in 4 steps 500Hz 1KHz 1 5KHz 2 5KHz Q programmable 0 5 0 75 1 0 1 25 DC gain programmable 15 to 15dB range with 1dB resolution Treble 2nd order frequency response center frequency programmable in 4 steps 10KHz 12 5KHz 15KHz 17 5KHz 15 to 15dB range with 1dB resolution Spectrum analyzer seven bandpass filters 2n...

Page 36: ...ifferential 70 100 KΩ CMRR Common Mode Rejection Ratio VCM 1 VRMS 1kHz 46 70 dB VCM 1 VRMS 10kHz 46 60 dB eNo Output Noise Speaker Outputs 20Hz 20kHz flat all stages 0dB 12 µV MIXING CONTROL MLEVEL Mixing Ratio Main Mix Source 6 6 dB GMAX Max Gain 13 15 17 dB AMAX Max Attenuation 83 79 75 dB ASTEP Step Resolution 0 5 1 1 5 dB LOUDNESS CONTROL AMAX Max Attenuation 15 dB ASTEP Step Resolution 1 dB f...

Page 37: ... 0 1 dB DC on shelving filter use for cut only 4 4 dB MIDDLE CONTROL CRANGE Control Range 14 15 16 dB ASTEP Step Resolution 0 5 1 1 5 dB fc Center Frequency fC1 400 500 600 Hz fC2 0 8 1 1 2 kHz fC3 1 2 1 5 1 8 kHz fC4 2 2 5 3 kHz QBASS Quality Factor Q1 0 45 0 5 0 55 Q2 0 65 0 75 0 85 Q3 0 9 1 1 1 Q4 1 1 1 25 1 4 TREBLE CONTROL CRANGE Clipping Level 14 15 16 dB ASTEP Step Resolution 0 5 1 1 5 dB f...

Page 38: ...Lowpass Corner Frequency fLP1 72 80 88 Hz fLP2 108 120 132 Hz fLP3 144 160 176 Hz HPF EFFECT GMAX Max Gain 22 dB GMIN Min Gain 4 dB ASTEP Step Resolution 2 dB SPECTRUM ANALYZER CONTROL VSAOut Output Voltage Range 0 3 3 V fC1 Center Frequency Band 1 62 Hz fC2 Center Frequency Band 2 157 Hz fC3 Center Frequency Band 3 392 Hz fC4 Center Frequency Band 4 1 kHz fC5 Center Frequency Band 5 2 51 kHz fC6 ...

Page 39: ...he attenuation is fixed to 3dB for incoming signals The input for SE3 is also configurable as part of the interface for external filters in DSO applications AC2IN Figure 4 Input Stage GENERAL eNO Output Noise BW 20Hz to 20 kHz all gain 0dB 12 µV BW 20Hz to 20 kHz Output muted 6 µV S N Signal to Noise Ratio all gain 0dB flat Vo 2VRMS 100 dB D Distortion VIN 1VRMS all stages 0dB 0 01 SC Channel Sepa...

Page 40: ...feature is only present in the main signal path 5 2 1 AutoZero Remain In some cases for example if the P is executing a refresh cycle of the IIC Bus programming it is not use ful to start a new AutoZero action because no new source is selected and an undesired mute would ap pear at the outputs For such applications it can be switched in the AutoZero Remain Mode Bit 6 of the subaddress byte If this...

Page 41: ...400Hz 800Hz and 2 4kHz Figure 6 Loudness Center frequencies Attn 15dB 5 3 3 Low High Frequency Boost Figure 7 shows the different Loudness shapes in low high frequency boost Figure 7 Loudness Attenuation fC 2 4KHz 2 0 1 5 1 0 5 0 5 1 0 1 0 0 1 K 1 0 K 2 0 1 5 1 0 5 0 5 1 0 1 0 0 1 K 1 0 K ...

Page 42: ... started Mute action is always terminated and could not be interrupted by a change of the mute signal 5 5 SoftStep Volume When the volume level is changed audible clicks could appear at the output The root cause of those clicks could either be a DC Offset before the volume stage or the sudden change of the envelope of the audi osignal With the SoftStep feature both kinds of clicks could be reduced...

Page 43: ...as a function of frequency at a center frequency of 80Hz Figure 10 Bass Control fC 80Hz Q 1 5 6 2 Center Frequency Figure 11 shows the four possible center frequencies 60 80 100 and 200Hz Figure 11 Bass center Frequencies Gain 15dB Q 1 15 0 10 0 5 0 0 0 5 0 10 0 15 0 10 0 100 0 1 0K 10 0K dB Hz 4 0 4 8 1 2 1 6 1 0 1 0 0 1 K 1 0 K ...

Page 44: ... the DC gain is increased by 4 4dB Inaddition the pro grammed center frequency and quality factor is decreased by 25 which can be used to reach alternative cen ter frequencies or quality factors Figure 13 Bass normal and DC Mode Gain 14dB fC 80Hz Note The center frequency Q and DC mode can be set fully independently 0 0 2 5 5 0 7 5 10 0 12 5 15 0 10 0 100 0 1 0K 10 0K 0 0 2 5 5 0 7 5 10 0 12 5 15 ...

Page 45: ...Attenuation Figure 14 shows the attenuation as a function of frequency at a center frequency of 1kHz Figure 14 Middle Control fC 1 kHz Q 1 5 7 2 Center Frequency Figure 14 shows the four possible center frequencies 500Hz 1kHz 1 5kHz and 2 5kHz Figure 15 Middle center Frequencies Gain 14dB Q 1 ...

Page 46: ...re 16 Middle Quality factors Gain 14dB fc 1kHz 5 8 Treble There are two parameters programmable in the treble stage 5 8 1 Attenuation Figure 16 shows the attenuation as a function of frequency at a center frequency of 17 5kHz Figure 17 Treble Control fC 17 5kHz 2 0 1 5 1 0 5 0 5 1 0 1 5 2 0 1 0 1 0 0 1 K 1 0 K ...

Page 47: ...frequencies 10k 12 5k 15k and 17 5kHz Figure 18 Treble Center Frequencies Gain 15dB 5 9 Subwoofer Filter The subwoofer lowpass filter has butterworth characteristics with programmable cut off frequency 80 120 160Hz Figure 19 Subwoofer Control 5 0 5 1 0 1 5 2 0 1 0 1 0 0 1 K 1 0 K ...

Page 48: ... referred to device ground The microprocessor starts a read cycle with the negative going clock edge at the SAclk input On the fol lowing positive clock edges the peak signal level for the band pass filters is subsequently switched to SAout Each analog output data is valid after the time tSadel A reset of the sample capacitors is induced whenever SAclk remains high for the time tintres Note that a...

Page 49: ...ailable at the AC Outputs The input impedance of this AC Inputs is 50kΩ Figure 22 Diagram of AC coupling 5 12 DSO Applications For DSO applications DSO filter is available for additional processing after the speaker control It is a 2nd order Butterworth highpass filter with selectable flat mode Figure 23 shows the diagram of the DSO that includes an external RC network Figure 23 DSO diagram To Out...

Page 50: ... the mixing levels Figure 24 Output Selector 5 14 Audioprocessor Testing In the test mode which can be activated by setting bit D7 of the IIC subaddress byte and bit D0 of the testing audioprocessor byte several internal signals are available at the SE1R pin In this mode the input resistance of 100kOhm is disconnected from the pin Internal signals available for testing are listed in the data byte ...

Page 51: ...a could be received by µP ACK Acknowledge P Stop TS Testing mode AZ Auto zero remain AI Auto increment 6 1 2 Transmission Mode SM Soft mute activated for main channel X Not Used The transmitted data is automatic updated after each ACK Transmission can be repeated without new chip address 6 1 3 Reset Condition A Power On Reset is invoked if the Supply Voltage is below than 3 5V After that the follo...

Page 52: ...ck Generator 0 0 0 1 1 Volume 0 0 1 0 0 Treble 0 0 1 0 1 Middle 0 0 1 1 0 Bass 0 0 1 1 1 Second Source Selector 0 1 0 0 0 Subwoofer Middle Bass 0 1 0 0 1 Mixing Gain Effect 0 1 0 1 0 Speaker Attenuator Left Front 0 1 0 1 1 Speaker Attenuator Right Front 0 1 1 0 0 Speaker Attenuator Left Rear 0 1 1 0 1 Speaker Attenuator Right Rear 0 1 1 1 0 Mixing Level Control 0 1 1 1 1 Subwoofer Attenuator 1 0 0...

Page 53: ... 1 0 1 0 1 x Source Selector QD SE QD SE1 SE2 SE3 QD SE SE mute mute 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 Input Gain 0dB 1dB 14dB 15dB 0 1 Auto Zero on off MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 Attenuation 0dB 1dB 14dB 15dB 0 0 1 1 0 1 0 1 Center Frequency Flat 400Hz 800Hz 2400Hz 0 1 High Boost on off 0 1 Loudness Soft Step on off ...

Page 54: ... 1 0 1 x Soft Mute Time 0 48ms 0 96ms 123ms 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 Soft Step Time 0 160ms 0 321ms 0 642ms 1 28ms 2 56ms 5 12ms 10 24ms 20 48ms 0 1 Clock Fast Mode on off MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 1 1 1 1 x 0 0 1 0 0 1 1 x 0 0 1 0 0 1 1 x 0 0 1 0 0 1 1 x 0 1 1 0 1 0 1 x Gain Attenuation 0dB 1dB 15dB 0dB 1dB 78dB 79dB mute...

Page 55: ... 1dB 0dB 0dB 1dB 14dB 15dB 0 0 1 1 0 1 0 1 Treble Center Frequency 10 0kHz 12 5kHz 15 0kHz 17 5kHz 0 1 Reference Output Select External Vref 4V Internal Vref 3 3V MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 0 1 0 0 1 0 1 Gain Attenuation 15dB 14dB 1dB 0dB 0dB 1dB 14dB 15dB 0 0 1 1 0 1 0 1 Middle Q Factor 0 5 0 75 1 1 25 0 1 Middle Soft...

Page 56: ... 0 1 0 1 Gain Attenuation 15dB 14dB 1dB 0dB 0dB 1dB 14dB 15dB 0 0 1 1 0 1 0 1 Bass Q Factor 1 0 1 25 1 5 2 0 0 1 Bass Soft Step on off MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 1 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 x Source Selector QD SE QD SE1 SE2 SE3 QD SE SE mute mute 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 Input Gain 0dB 1dB 14dB 15dB 0 1 Rear Speaker Source main source second source ...

Page 57: ... 1000Hz 1500Hz 2500Hz 0 0 1 1 0 1 0 1 Bass Center Frequency 60Hz 80Hz 100Hz 200Hz 0 1 Bass DC Mode on off 0 1 Smoothing Filter on off bypass MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 0 1 Mixing to Left Front Speaker on off 0 1 Mixing to Right Front Speaker on off 0 1 Mixing Enable on off 0 1 Subwoofer Enable OUTLR2 OUTRR2 on off 0 0 1 1 1 1 0 0 0 0 0 1 0 0 0 0 1 x 0 1 0 1 x x Gain Effect for DSO Fi...

Page 58: ...DC Coupling with DSO AC coupling after Bass MSB LSB FUNCTION D7 D6 D5 D4 D3 D2 D1 D0 0 1 Audio Processor Testing Mode off on 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 x x x x x x x x Test Multiplexer Left InGain Left I...

Page 59: ...MIN TYP MAX MIN TYP MAX A 2 65 0 104 a1 0 1 0 3 0 004 0 012 b 0 35 0 49 0 014 0 019 b1 0 23 0 32 0 009 0 013 C 0 5 0 020 c1 45 typ D 17 7 18 1 0 697 0 713 E 10 10 65 0 394 0 419 e 1 27 0 050 e3 16 51 0 65 F 7 4 7 6 0 291 0 299 L 0 4 1 27 0 016 0 050 S 8 max OUTLINE AND MECHANICAL DATA ...

Page 60: ...29 30 TDA7419 Table 20 Revision History Date Revision Description of Changes November 2004 1 First Issue ...

Page 61: ...on supersedes and replaces all information previously supplied STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2004 STMicroelectronics All rights reserved STMic...

Page 62: ...ATIC SELF ALIGNMENT FOR IMAGE REJECTION INTEGRATED IF FILTERS WITH HIGH SELECTIVITY DYNAMIC RANGE AND ADAPTIVE BANDWIDTH CONTROL DIGITAL IF SIGNAL PROCESSING WITH HIGH PERFORMANCE AND FREE OF DRIFT HIGH PERFORMANCE STEREODECODER I 2 C BUS CONTROLLED SINGLE 5V SUPPLY SINGLE QFP44 PACKAGE RDS DEMODULATION WITH GROUP AND BLOCK SYNCHRONIZATION TDA7703R ONLY Part number Package Packing TDA7703 LQFP44 1...

Page 63: ...F processing including adaptive bandwidth control and Stereodecoder The TDA7703R contains additionally an on chip RDS decoder with group and block synchronization The utilization of digital signal processing results in numerous advantages against today s tuners Very low number of external components Very small space and easy application Very high selectivity due to digital filters High flexibility...

Page 64: ... 6 FMPINDRV FM AGC PIN diode driver 7 VCC RF 5V supply for RF section 8 TCAM AM AGC time constant 9 PINDDEC AM AGC internal PIN diode decoupling 10 PINDIN AM AGC internal PIN diode input 11 GND LNA GND of AM LNA AM internal PIN diode AM mixer IF 12 LNAIN AM LNA input 13 LNADEC AM LNA decoupling 14 LNAOUT AM LNA output first stage 15 LNAIN2 AM LNA input 2 nd stage 16 LNAOUT2 AM LNA output 17 LNADEC...

Page 65: ... VDD 1V2 1 2V DSP supply 29 RDSINT I 2 C address selection TDA7703 RDS interrupt and I 2 C address selection TDA7703R 30 RSTN Reset pin active low 31 VDD 1V2 1 2V DSP supply 32 GND 1V2 Digital GND for 1 2V VDD 33 VCC DAC 5V supply of audio DAC 34 OSCOUT Xtal osc output 35 OSCIN Xtal osc input 36 GND DAC Audio DAC GND 37 DACOUTL Audio output left 38 DACOUTR Audio output right 39 GND IFADC IF ADC GN...

Page 66: ...age rejection 5 6 IF A D CONVERTERS A high performance IQ IFADC converts the IF signal to digital IF for the digital signal processing 5 7 AUDIO D A CONVERTERS A stereo DAC provides the left right audio signal after IF processing and stereodecoding of the DSP 5 8 VCO The VCO is fully integrated without any external tuning component It covers all FM frequency bands including EU US Japan EastEU and ...

Page 67: ...ced to pin 29 must be released to start the system operation a suitable time after the RSTN line has gone high If pin 29 is kept low when RSTN rises the I2 C address is 0xC2 w 0xC3 r If pin 29 is kept high when RSTN rises the I2 C address is 0xC8 w 0xC9 r The status of pin 29 during the reset phase can be set to high through an external 10 kohm resistor tied to 3 3V pin 25 or low by not forcing an...

Page 68: ...2 clk8 clk9 START address ACK data ACK STOP Figure 4 I2 C read sequence The sequence is very similar to the write one and has the same constraints for start stop data latching The differences follow a chip address must always be sent by the uP to the TDA7703 the address must be C3 if C2 had been selected at boot or C9 if C8 had been selected at boot a header is transmitted after the chip address t...

Page 69: ...t Condition Comments Min Typ Max Units VCC 5V supply voltage 4 7 5 5 25 V ICC supply current 5V see note 1 220 295 mA Tamb Ambient Temperature Range 20 70 C VVCCREG12 VCCREG12 supply voltage see note 2 2 V V1V2 Digital core 1 2V supply voltage when supplied externally see note 3 1 08 1 2 1 32 V V1V2 1 08V see note 3 120 mA V1V2 1 2V see note 3 80 135 mA I1V2 Digital core 1 2V supply current V1V2 1...

Page 70: ...z DRAM Dynamic range in AM BW 3 kHz 103 dB vnoiseAM Input noise referred to mixer input 8 1 13 6 nV Hz 6 9 Audio DAC Limits Symbol Parameter Test Condition Comments Min Typ Max Units Vout Max output voltage Full scale 1 Vrms BW Bandwidth 1dB attenuation 15 Khz Rout Output resistance 600 750 900 Ω onoise Output noise 60 95 uVrms D Distortion 6 dBFS 0 03 0 04 6 10 IO interface pins Limits Symbol Par...

Page 71: ...TDA7703 TDA7703R and 39 must be kept in order to latch the correct boot mode serial bus configuration Rev 1 0 10 22 ...

Page 72: ... Typ Max Units fSCL SCL Clock frequency 100 500 kHz tAA SCL low to SDA data valid 300 ns tbuf time the bus must be kept free before a new transmisison 4 7 us tHD STA START condition hold time 4 0 us tLOW Clock low period 4 7 us tHIGH Clock high period 4 0 us tSU SDA START condition setup time 4 7 us tHD DAT Data input hold time 0 us tSU DAT Data input setup time 250 ns tR SDA SCL rise time 1000 ns...

Page 73: ...Eu can be modified by the user 100 kHz Sensitivity S N 26dB 4 dBu S N 10dBu no highcut DISS BW 2 TBD dB 60dBu mono 75 dB 60dBu Deviation 75 kHz mono 81 dB Ultimate S N 60dBu stereo 73 dB Distortion Deviation 75 kHz 0 05 Max deviation THD 3 TBD kHz Adjacent channel Selectivity ΔF 100kHz SINAD 30dB desired 40 dBu dev 40kHz 400Hz undesired dev 40kHz 1Khz TBD dB Alternate Channel Selectivity ΔF 200kHz...

Page 74: ...ternate Channel Selectivity ΔF 18kHz SINAD 26dB undesired m 30 1kHz 50 dB Strong signal interferer 1 SNR ΔF 40kHz desired 40dBu undesired 100dBu m 30 1kHz 17 dB Strong signal interferer 1 suppression ΔF 40kHz desired 40dBu undesired 100dBu m 30 1kHz 1 dB Strong signal interferer 1 cross modulation ΔF 40kHz desired 80dBu undesired 100dBu m 30 1kHz maximum SNR of undesired channel 10 dB Strong signa...

Page 75: ...Hz Frf 216kHz Vrf 74 dBu Unless otherwise specified Limits Symbol Parameter Test Condition Comments Min Typ Max Units Tuning range LW can be modified by the user 144 288 kHz Tuning step LW can be modified by the user 1 kHz Sensitivity S N 20dB 30 dBu Ultimate S N 80dBu 66 dB AGC F O M Ref 74dBu 10dB drop point 50 60 dB Distortion M 80 0 3 Image rejection 70 dB Rev 1 0 14 22 ...

Page 76: ... with a red background if the registers are written exclusively by the tuner drivers and with orange background if they can be written by the user for the manual FE alignment operation The user can write the FE registers through the dedicated commands and must take care that the fixed values sent through such means are as indicated in the tables below After modifying a register containing at least...

Page 77: ...n Typ Max Units SMsp Start point vs field strength audio atten 1 dB read FM_softmute no adjacent channel present 0 6 20 dBu SMep End point vs field strength audio atten SMd 1 dB read FM_softmute no adjacent channel present 6 6 10 dBu SMd Depth 30 15 0 dB SMtauatt Field strength LPF cut off frequency for soft mute activation 0 1 100 4000 Hz SMtaurel Field strength LPF cut off frequency for soft mut...

Page 78: ... from 80 dBu to 20 dBu 0 001 0 5 20 s SBMPsp Start point vs multipath separation MaxSep 1 dB equivalent 19 kHz AM modulation depth field strength 80 dBu 5 10 80 SBMPep End point vs multipath separation 1 dB equivalent 19 kHz AM modulation depth field strength 80 dBu 5 30 80 SBMPtM2S multipath related transition time from mono to stereo Vrf step like variation from 20 dBu to 80 dBu 0 001 1 20 s SBM...

Page 79: ...nd Vrf step like variation from 20 dBu to 80 dBu 0 001 0 001 20 s HCMPtW2N multipath related transition time from wide to narrow Vrf step like variation from 80 dBu to 20 dBu 0 001 0 001 20 s HCmaxBW Maximum cut off frequency of high cut filter bank Filter 7 3 dB response frequency input signal with pre emphasis HCmin BW 14 18 kHz HCminBW Minimum cut off frequency of high cut filter bank Filter 0 ...

Page 80: ...l continuous set Range Symbol Parameter Test Condition Comments Min Typ Max Units HCFSsp Start point vs field strength minimum RF level for widest HC filter filter 7 no multipath present 0 40 50 dBu HCFSep End point vs field strength maximum RF level for narrowest HC filter filter 0 no multipath present 0 30 50 dBu HCFStW2N Field strength related transition time from wide to narrow band Vrf step l...

Page 81: ...TDA7703 TDA7703R 10 0 APPLICATION SCHEMATIC Figure 5 FM Eu US JP AM LW MW application Rev 1 0 20 22 ...

Page 82: ...TDA7703 TDA7703R 11 PACKAGE INFORMATION Rev 1 0 21 22 ...

Page 83: ...ublication supersedes and replaces all information previously supplied STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2004 STMicroelectronics All rights reserv...

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