Philips CEM2000/00 Скачать руководство пользователя страница 19 | Manualshive

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LAYOUT DIAGRAM - SERVO BOARD
TOP SIDE VIEW

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Содержание CEM2000/00

Страница 1: ...tem 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 diagram ...

Страница 2: ...08 0 MHz 100kHz per step in auto search and 50kHz per step in manual search Frequency range AM MW 522 1620 KHz 9 kHz 530 1710 kHz 10 kHz Usable sensitivity FM 8 µV Usable sensitivity AM MW S N 20 dB 30 µV General inforamtion Type Versions Features Board in used CEM2000 Service policy SERVO BOARD MAIN BOARD TIPS C Component Lever Repair M Module Lever Repair Used 00 00 55 1 5 1 6 8 5 Feature diffre...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

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

Страница 8: ......

Страница 9: ...5 1 5 1 CIRCUIT DIAGRAM MAIN BOARD MCU PART ...

Страница 10: ...5 2 5 2 CIRCUIT DIAGRAM MAIN BOARD Power PART ...

Страница 11: ...CIRCUIT DIAGRAM MAIN BOARD Radio PART 5 3 5 3 ...

Страница 12: ...CIRCUIT DIAGRAM MAIN BOARD Audio PART 1 5 4 5 4 ...

Страница 13: ...CIRCUIT DIAGRAM MAIN BOARD Audio PART 2 5 5 5 5 ...

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

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

Страница 16: ...48 390 R949 NC R950 390 R951 NC R952 270 R953 NC C902 104 LED19 LED LED20 LED LED21 LED LED22 LED R959 330 R960 330 R961 270 R962 270 R964 0R EN901 EN SW24 POWER MUTE C905 2P ZR901 22P ZR902 22P EC901 10uF Q905 NC R965 NC R966 NC 1 2 3 4 USBIN USB C903 2P C906 2P C908 2P R975 270 R976 NC R955 390 R954 NC R956 390 R957 NC R969 270 R970 NC R971 390 R972 NC R967 270 R968 NC R973 270 R974 NC 1 2 3 4 5...

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

Страница 18: ...CIRCUIT DIAGRAM SERVO BOARD 7 1 7 1 ...

Страница 19: ...LAYOUT DIAGRAM SERVO BOARD TOP SIDE VIEW 7 2 7 2 ...

Страница 20: ...LAYOUT DIAGRAM SERVO BOARD BOTTOM SIDE VIEW 7 3 7 3 ...

Страница 21: ...EXPLODED VIEW DIAGRAM 8 1 8 1 6501 6502 6503 6504 6505 ASS02 ASS05 CD01 PL01 ...

Страница 22: ...9 1 Revision list Version1 0 3141 785 35130 Initial Release Version1 1 3141 785 35131 New version 51 added ...

Страница 23: ...age output d To check the circuit of power amplifier U3 LV47002 and VOLUME U5 7313 IC e To check the normal voltage of 22 PIN MUTE of power amplifier U3 LV47002 normally should be 4V1 f To check the voltage of 2 pin of audio processor U5 7313 IC should be 9V0 g To check the resistor network of NR1 4K7 H To check the voltage of the15 pin Lamp Vcc of CN5 should be 6V4 e To check the voltage of the 1...

Страница 24: ...rvo board connector of CN702 and main board connector of CN9 whether the socket of it is loose j To check the switch SW702 on the servo board h To check the rotation mechanism of CD deck mechanism i To check whether the rotation belt of deck mechanism is dislocation or loose USB SD defective a To check whether the USB SD signal format is correspond to the request of the unit b To check the voltage...

Страница 25: ...75dB in 1 25dB step Speaker attenuator for balance and fader range from 0dB to 38 75dB in 1 25dB step Each channel output can be muted individually Low frequency loudness compensation Bass and Treble control range from 14dB to 14dB in 2dB step Wide operation range VDD 4V to 10V APPLICATION CIRCUIT 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 REF VDD AGND TREB_L TREB_R...

Страница 26: ...EF LOUDNESS REF TREBLE BASS RROUT RFOUT TREB_R BOUT_R LOUD_R RIN RIN3 RIN2 RIN1 ROUT REF VDD REF AGND REF SCL SDA DGND I2C DECODER BIAS BIN_R Speaker Attenuator With Mute Master Volume Input SW and GAIN Input SW and GAIN INT Ref Loud SW Princeton Technology Corp ANGUS ELECTRONICS CO LTD Tel 852 2345 0540 Fax 852 2345 9948 Web Site www angus com hk ...

Страница 27: ...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 REF VDD AGND TREB_L TREB_R RIN ROUT LOUD_R RIN3 RIN2 RIN1 LOUD_L LIN3 LIN2 LIN1 LIN LOUT BOUT_L BIN_L BIN_R BOUT_R RROUT LROUT RFOUT LFOUT DGND SDA SCL PT7313E Princeton Technology Corp ANGUS ELECTRONICS CO LTD Tel 852 2345 0540 Fax 852 2345 9948 Web Site www angus com hk ...

Страница 28: ...ut 12 LIN3 I Left channel input 3 13 LIN2 I Left channel input 2 14 LIN1 I Left channel input 1 15 LIN I Left channel volume controller input 16 LOUT O Left channel Input selector output 17 BIN_L I Left channel input for bass controller 18 BOUT_L O Left channel output for bass controller 19 BIN_R I Right channel input for bass controller 20 BOUT_R O Right channel output for bass controller 21 RROU...

Страница 29: ...and stable only when the SCL Signal is in HIGH State The HIGH and LOW State of the SDA Line can only change when the SCL signal is LOW Please refer to the figure below START AND STOP CONDITIONS A Start Condition is activated when 1 The SCL is set to HIGH and 2 SDA shifts from HIGH to LOW State The Stop Condition is activated when 1 SCL is set to HIGH and 2 SDA shifts from LOW to HIGH State Please ...

Страница 30: ...at generated by the slave device is right or not host controller can just bypass the acknowledge check and transmit next data byte to the slave device If this approach is used there are greater chances of faulty operation as well as decrease in noise immunity INTERFACE PROTOCOL The interface protocol sequence was defined in below section A Start sign A Chip Address of the desire slave device The W...

Страница 31: ... F S S x 5V x F F F F F F Notes 1 x Not allow in this combination S Standard Mode Supported F Fast Mode Supported 2 Data rate specification is design guarantee only not fully tested in every combination I2 C BUS INITIAL TIME The PT7313E is controlled by the I2 C bus command each time the supply voltage applied to chip it needs an initial time to reset all of the internal decoder register in this p...

Страница 32: ...ion of the speaker attenuators data bytes Total control range of the speaker attenuator is from 0dB to 37 5dB Example 1 an attenuation gain of 6 25dB on the Speaker Right Rear channel is combined 0dB and 6 25dB therefore it should be given by 1 1 1 0 0 1 0 1 Example 2 an attenuation gain of 32 5dB on the Speaker Left Front channel is combined 30dB and 2 5dB therefore it should be given by 1 0 0 1 ...

Страница 33: ...tereo 2 1 0 Stereo 3 0 Loudness ON 1 Loudness OFF 0 0 11 25dB 0 1 7 5dB 1 0 3 75dB 1 1 0dB BASS AND TREBLE DATA BYTES The following table shows a detailed description of the Bass and Treble Data Byte For example a Treble at 12dB is given by 0 1 1 1 0 0 0 1 0x71 MSB LSB Function 0 1 1 0 C3 C2 C1 C0 Bass 0 1 1 1 C3 C2 C1 C0 Treble 0 0 0 0 14dB 0 0 0 1 12dB 0 0 1 0 10dB 0 0 1 1 8dB 0 1 0 0 6 dB 0 1 0...

Страница 34: ...e low frequency boost in the maximum volume the loudness boost will return to flat response 6 16 4 2 0 2 4 6 8 10 12 14 d B g A 10 20k 20 50 100 200 500 1k 2k 5k Hz 6 16 4 2 0 2 4 6 8 10 12 14 d B g A 10 50k 20 50 100 200 500 1k 2k 5k 10k 20k Hz PT7313E Bass Response VS CAP PT7313E Treble Response VS CAP 50 10 45 40 35 30 25 20 15 d B V 10 20k 20 50 100 200 500 1k 2k 5k Hz 80 0 70 60 50 40 30 20 1...

Страница 35: ...FERENCE DATA Parameter Symbol Min Typ Max Unit Supply voltage VDD 4 9 10 V Max input signal handling VCL 2 3 2 6 Vrms Total harmonic distortion 1Vrms 1KHz THD 0 03 0 07 Signal To noise ratio S N 100 dBV Channel separation f 1KHz Sc 100 dB Volume control 1 25dB step 78 75 0 dB Bass treble control 2dB step 14 14 dB Balance control 1 25dB step 37 5 0 dB Input gain 3 75dB step 0 11 25 dB Mute attenuat...

Страница 36: ...x attenuation AVMAX 36 37 5 39 dB Step resolution SSTEP 1 15 1 25 1 35 dB Attenuation set error EA 1 0 1 dB Output mute attenuation AMUTE 100 dB DC offset VDCO 0dB to MUTE 5 10 mV Bass Control Control range Gb Max Boost Cut 12 14 16 dB Step resolution BSTEP 1 7 2 2 3 dB Feedback resistance RB 34 44 58 KΩ Treble Control Control range Gt Max Boost Cut 12 14 16 dB Step resolution TSTEP 1 7 2 2 3 dB L...

Страница 37: ...k 5k 10k Hz 120 20 100 80 60 40 d B r A 20 20k 50 100 200 500 1k 2k 5k Hz 2 Channel Crosstalk PSRR 0 003 20 0 01 0 02 0 05 0 1 0 2 0 5 1 2 5 10 1m 4 2m 5m 10m 20m 50m 200m 500m 1 2 V 110 50 100 90 80 70 60 d B V 20 20k 50 100 200 500 1k 2k 5k Hz Output THD VS VDD Voltage Input Selector Separation 4V 5V 8V 9V 10V RL 10KΩ L1 to L2 Cref 22µF Princeton Technology Corp ANGUS ELECTRONICS CO LTD Tel 852 ...

Страница 38: ... 100 Load Kohm Output voltage V 4 6 8 10 12 14 16 3 4 5 6 7 8 9 10 11 12 Supply Voltage V Output Noise uV Maximum Output Level VS RLOAD Residual Noise 80 70 60 50 40 30 20 10 0 80 70 60 50 40 30 20 10 0 Volume attenuate level dB Measurement dB 110 100 90 80 70 60 50 40 30 20 10 0 40 30 20 10 0 Speaker attenuate level dB Measurement dB Volume Attenuation Speaker Attenuation 80KHz LPF 20 20KHz A wei...

Страница 39: ...A 2 65 A1 0 10 0 30 b 0 31 0 51 c 0 20 0 33 D 17 90 BSC E 10 30 BSC E1 7 50 BSC e 1 27 BSC L 0 38 1 27 θ 0 8 Notes 1 Refer to JEDEC MS 013 AE 2 All Dimensions are in millimeter Princeton Technology Corp ANGUS ELECTRONICS CO LTD Tel 852 2345 0540 Fax 852 2345 9948 Web Site www angus com hk ...

Страница 40: ...nts and other changes to its products and to discontinue any product without notice at any time PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product No circuit patent licenses are implied Princeton Technology Corp ANGUS ELECTRONICS CO LTD Tel 852 2345 0540 Fax 852 2345 9948 Web Site www angus com hk ...

Страница 41: ...TION The TDA7388 is a new technology class AB Audio Power Amplifier in Flexiwatt 25 package designed for high end car radio applications Thanks to the fully complementary PNP NPN out put configuration the TDA7388 allows a rail to rail output voltage swing with no need of bootstrap ca pacitors The extremely reduced components count allows very compact sets 4 X 41W QUAD BRIDGE CAR RADIO AMPLIFIER Fi...

Страница 42: ... Output Peak Current Repetitive Duty Cycle 10 at f 10Hz Non Repetitive t 100µs 4 5 5 5 A A Ptot Power dissipation Tcase 70 C 80 W Tj Junction Temperature 150 C Tstg Storage Temperature 55 to 150 C Symbol Parameter Value Unit Rth j amb Thermal Resistance Junction to Case max 1 C W D94AU159A TAB P GND2 OUT2 ST BY OUT2 V CC OUT1 P GND1 OUT1 SVR IN1 IN2 S GND IN4 IN3 AC GND OUT3 P GND3 OUT3 V CC OUT4 ...

Страница 43: ...4W 0 04 0 15 eNo Output Noise A Weighted 50 70 µV Bw 20Hz to 20KHz 70 100 µV SVR Supply Voltage Rejection f 100Hz Vr 1Vrms 50 65 dB fch High Cut Off Frequency Po 0 5W 100 200 KHz Ri Input Impedance 70 100 KΩ CT Cross Talk f 1KHz Po 4W 60 70 dB f 10KHz Po 4W 50 60 dB ISB St By Current Consumption 50 µA VSB out St By OUT Threshold Voltage Amp ON 3 5 V VSB IN St By IN Threshold Voltage Amp OFF 1 5 V ...

Страница 44: ...it IN1 0 1µF C9 1µF IN2 C2 0 1µF OUT1 OUT2 IN3 C3 0 1µF IN4 C4 0 1µF OUT3 OUT4 D95AU335B C5 0 47µF C6 47µF SVR TAB Vcc1 2 Vcc3 4 C8 0 1µF C7 2200µF C10 1µF ST BY R1 10K R2 47K MUTE C1 14 15 12 11 22 4 13 S GND 16 10 25 1 HSD 6 20 9 8 7 5 2 3 17 18 19 21 24 23 ...

Страница 45: ...5 10 TDA7388 4 P C B AND COMPONENT LAYOUT OF THE FIGURE 4 Figure 5 Components Top Copper Layer Figure 6 Bottom Copper Layer ...

Страница 46: ...Current vs Supply Voltage Figure 8 Quiescent Output Voltage Supply Voltage Figure 9 Output Power vs Supply Voltage Figure 10 Distortion vs Output Power Figure 11 Distortion vs Frequency Figure 12 Supply Voltage Rejection vs Frequency ...

Страница 47: ...ING facilities are both CMOS COMPATIBLE If unused a straight connection to Vs of their respective pins would be admissible Conventional low power transistors can be employed to drive muting and stand by pins in absence of true CMOS ports or microprocessors R C cells have always to be used in order to smooth down the transitions for preventing any audible transient noises Since a DC current of abou...

Страница 48: ...H1 17 00 0 669 H2 12 80 0 503 H3 0 80 0 031 L 2 22 07 22 47 22 87 0 869 0 884 0 904 L1 18 57 18 97 19 37 0 731 0 747 0 762 L2 2 15 50 15 70 15 90 0 610 0 618 0 626 L3 7 70 7 85 7 95 0 303 0 309 0 313 L4 5 0 197 L5 3 5 0 138 M 3 70 4 00 4 30 0 145 0 157 0 169 M1 3 60 4 00 4 40 0 142 0 157 0 173 N 2 20 0 086 O 2 0 079 R 1 70 0 067 R1 0 5 0 02 R2 0 3 0 12 R3 1 25 0 049 R4 0 50 0 019 V1 3 Typ V 5 T p ...

Страница 49: ...9 10 TDA7388 6 REVISION HISTORY Table 5 Revision History Date Revision Description of Changes July 2005 1 First Issue ...

Страница 50: ...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 2005 STMicroelectronics All rights reserved STMic...

Страница 51: ...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...

Страница 52: ...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...

Страница 53: ... 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...

Страница 54: ... 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...

Страница 55: ...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 ...

Страница 56: ...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...

Страница 57: ...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...

Страница 58: ...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...

Страница 59: ...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...

Страница 60: ...TDA7703 TDA7703R and 39 must be kept in order to latch the correct boot mode serial bus configuration Rev 1 0 10 22 ...

Страница 61: ... 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...

Страница 62: ...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...

Страница 63: ...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...

Страница 64: ...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 ...

Страница 65: ... 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...

Страница 66: ...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...

Страница 67: ... 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...

Страница 68: ...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 ...

Страница 69: ...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...

Страница 70: ...TDA7703 TDA7703R 10 0 APPLICATION SCHEMATIC Figure 5 FM Eu US JP AM LW MW application Rev 1 0 20 22 ...

Страница 71: ...TDA7703 TDA7703R 11 PACKAGE INFORMATION Rev 1 0 21 22 ...

Страница 72: ...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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