E-TDA7462DTR STMicroelectronics, E-TDA7462DTR Datasheet
E-TDA7462DTR
Specifications of E-TDA7462DTR
Related parts for E-TDA7462DTR
E-TDA7462DTR Summary of contents
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... ORDERING NUMBER: TDA7462D optimize audio response of CD sources an addi- tional output channel for subwoofer and a sepa- rate source selector for rear channel. The use of a dedicated BICMOS process makes signal proc- essing very linear thus achieving low distortion and low noise figures. ...
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... Operating Storage Temperature Range stg SUPPLY Symbol Parameter V Supply Voltage S I Supply Current S SVRR Ripple Rejection @ 1KHz ESD All pins are protected against ESD according to the MIL883 standard. PIN CONNECTION SE1L SE1R MD+ MD- CDL+ CDL- CDR- CDR+ PDR PDGND PDL SE2L ...
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... CDR+ CD Input Right Channel + 9 PDR Pseudo Differential Input Left 10 PDGND Pseudo Differential Common Ground 11 PDL Pseudo Differential Input Right 12 SE2L Single Ended Input 2 Left Channel 13 SE2R Single Ended Input 2 Right Channel 14 CREF Stabilizer Capacitor Pin 15 GND Supply Ground 16 VS Supply Voltage ...
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... L Test Condition all inputs except Phone Adjacent Gain Step MIN MAX Differential only at true differential input 1KHz CM RMS 10KHz CM RMS 20Hz to 20KHz flat; all stages 0dB Differential 1KHz CM RMS 10KHz CM RMS 20Hz to 20KHz flat; all stages 0dB Differential 1KHz CM VRMS ...
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... C Q Quality Factor BASS DC Bass-Dc-Gain GAIN TREBLE CONTROL C Control Range RANGE A Step Resolution STEP f Center Frequency C SPEAKER ATTENUATORS C Control Range RANGE A Step Resolution STEP A Output Mute Attenuation MUTE E Attenuation Set Error Steps DC 1) The SM pin is active low (Mute = 0) Test Condition off ...
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... COMPANDER G Max. Compander Gain MAX t Attack time ATT t Release time Rel V Compander Reference Input- REF Level (equals 0dB) CF Compression Factor 2) Steps are increasing if the attenuation is higher than 24dB. 6/25 Test Condition d = 0.3% Window 1 Window 2 Window 3 Window 4 f HP1 f HP2 f HP3 f HP4 ...
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... In-Gain 0..15dB, 1dB step Internal Offsetcancellation (AutoZero) Separate source selector for rear channel Beep Internal beep with 2 frequencies Mixing stage 4 step-mixing stage with phone or rear-selector as mix-signals Loudness Second order frequency response Programmable center frequency and quality factor 15 x 1dB attenuation steps ...
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... FUNCTIONAL DESCRIPTION Input Stages Most of the input stages are similar to the others ST audioprocessors with exception of the CD in- puts (see Figure 1). In fact there are some CD players in the market having a significant high source impedance which affects strongly on the common-mode rejection (CHRR) of the normal differential input stage ...
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... Full Mixing Stage The four-level mixing stage offers the possibility to mix the rear selector signal or the phone signal to any other source. Due to the fact that the mix- ing stage is located after the In-Gain stage fine adjustments of the main source level could be done in this way ...
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... I C bus. This slope is realized in a special S- shaped curve to mute slow in the critical regions (see Figure 6). For timing purposes the Bit 3 of the I put register is set to 1 from the start of muting un- til the end of de-muting. Figure 6. Softmute Timing EXT. MUTE 1.0K 10 ...
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... FILTER CHARACTERISTICS (BASS, TREBLE, VOICE-BAND) Figure 8. Bass Control @ fc = 80Hz 15.0 10.0 5.0 0.0 -5.0 -10.0 -15.0 10.0 100.0 Figure 10. Bass Quality factors @ Gain = 14dB 80Hz 15.0 12.5 10.0 7.5 5.0 2.5 0.0 10.0 100.0 1.0K Figure 12. Treble Control @ fc = 17.5KHz 15.0 10.0 5 ...
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... Hz 10.0 100.0 80Hz/115Hz by adding the left and the right channel. The at- tenuator is exactely the same like the other speakers. In some applications it could be helpful to change the phase of this output by software. For this pur- pose a bit is available in the subwoofer byte to change the phase from 0° to 180°. ...
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... I volume word and the volume is changed with a soft slope between adjacent steps. As mentioned in the description of this stage it is not recom- mended to change the volume during this slope. The compander-hold bit (Bit 7 in the subaddress- byte) is present to implement the volume change more easily ...
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... The transmitted data is automatic updated after each ACK. Transmission can be repeated without new chipaddress. Reset Condition A Power On reset (POR) is invoked if the supply voltage is below than 3.5V. After that the follow- ing data is written automatically into the registers of all subaddresses: MSB LSB ...
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... For more information see AutoZero section 3 For more information see Test Programming block 4 If this bit is set to "1", the subaddress is automatically incremented after the transmission of a data-byte. Therefore a transmission of more than one byte without sending the new subaddress is possible. LSB A3 A2 ...
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... MSB Main Loudness MSB Note: The attenuation is specified at high frequencies. Around the center frequency the value is different depending on the programmed attenuation (see Loudness frequency response). 16/25 LSB Source Selector Mono Differential Single Ended Full Differential Single Ended Pseudo Differential Single Ended ...
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... Note not recommended to use a gain more than 20dB for system performance reason. In general, the max. gain should be limited by software to the maximum value, which is needed for the system. Bass Configuration. & Treble Programming MSB LSB Gain/Attenuation +32.0dB (Note +31.5dB : : : : ...
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... TDA7462 Bass Programming MSB Note: For more information please refer to section Bass description Speaker Attenuation Front (left & right channel) MSB For this Bass Center-Frequency must be programmed to 100Hz 18/25 LSB Bass Steps -15dB -14dB : : : : : +14dB +15dB Bass Q Factor 1 1.25 1.5 2 Bass DC-Mode ...
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... Rear Selector MSB Rear Loudness MSB Note: The programming of the Main- and Rear-Selector as well as the Main- and Rear-Loudness is exactly the same, except the MSB’s. LSB Source Selector Mono Differential Single Ended Full Differential Single Ended Pseudo Differential Single Ended Mute 1 ...
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... Speaker Mute Input Signal for Rear Speaker (only Spkr LR) Rear Channel Main Channel Subw. Low-Pass Frequency (only Spkr RR) 80Hz 115Hz Input Signal for Subwoofer (only Spkr RR) Rear Channel Main Channel FUNCTION 1) 2) ...
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... Speaker Mute Subwoofer Phase 180° 0° Subwoofer Low-Pass Filter off on LSB Mute 0 enable SoftMute 1 disable SoftMute Mute Times 0 0 0.48ms 0 1 0.96ms 1 0 30.7ms 1 1 122.8ms Mixing Source 0 Rear-Selector 1 Phone Mixing Level (Main/Mix-Source) -12/-2 ...
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... TDA7462 Compander MSB Only possible if the Compander is off (Bit D0 set to 0) Configuration MSB 22/25 LSB Activity 0 off 1 on Attack Times 0 0 6ms 0 1 12ms 1 0 24ms 1 1 49ms Release Times 0 195ms 1 390ms 0 780ms 1 1.56s SoftStep Time 0 0 160 320 640 1.28ms 0 2 ...
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... Testing MSB avoid inadvertently programming of the Main-Testmode as well the Compander testmode it is mandatory to set the Bit 5 in the subaddress-byte to high at the same time. Figure 18. Application Circuit 100nF TAPEL 100nF TAPER 100nF PHONE+ 100nF PHONE- 100nF CDL+ 100nF CDL- 100nF CDR- 100nF ...
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... C 0 (typ.) D 17.7 18.1 0.697 E 10 10.65 0.394 e 1.27 e3 16.51 F 7.4 7.6 0.291 L 0.4 1.27 0.016 S 8 (max.) 24/25 inch MIN. TYP. MAX. 0.104 0.012 0.019 0.013 0.020 0.713 0.419 0.050 0.65 0.299 0.050 OUTLINE AND MECHANICAL DATA SO28 ...
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