E-TDA7400DTR STMicroelectronics, E-TDA7400DTR Datasheet
E-TDA7400DTR
Specifications of E-TDA7400DTR
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E-TDA7400DTR Summary of contents
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... MULTIPATH DETECTOR PROGRAMMABLE ROLL-OFF COMPENSA- TION NO EXTERNAL COMPONENTS DESCRIPTION The TDA7400D is the newcomer of the CSP fam- ily introduced by TDA7460/61. It uses the same innovative concepts and design technologies al- lowing fully software programmability through I bus and overall cost optimisation for the system designer. ...
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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 CDGND MPOUT THERMAL DATA Symbol R Thermal Resistance Junction-pins th-j pins 2/28 Parameter Test Condition ...
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... Right Rear Speaker Output 24 OUTLR Left Rear Speaker Output 25 OUTRF Right Front Spaeaker Output 26 OUTLF Left Front Speaker Output 27 ACOUTR Pre-speaker AC Output Right Channel 28 ACOUTL Pre-speaker AC Output Left Channel Pin type legenda Input O = Output I/O = Input/Output S = Supply nc = not connected Function TDA7400D Type ...
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... Treble Control 2nd order frequency response Center frequency programmable in 4 steps 15 x 1dB steps Speaker Control 4 independent speaker controls in 1dB steps max gain 15dB max. attenuation 79dB Mute Functions Direct mute Digitally controlled softmute with 4 programmable mute time = 9V ...
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... Center Frequency C Q Quality Factor BASS DC Bass-Dc-Gain GAIN TREBLE CONTROL C Control Range RANGE A Step Resolution STEP f Center Frequency C 1) The SM pin is active low (Mute = 0) 2) See note in Programming Part Test Condition G = -20 to 20dB G = -60 to 20dB Adjacent Attenuation Steps From 0dB to G MIN ...
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... Adjacent Attenuation Steps KHz output muted KHz all gain = 0dB all gain = 0dB flat RMS bass treble at 12dB; a-weighted 2.6V O RMS all stages 0dB IN RMS Bass & Treble = 12dB IN RMS -20dB -20 to -60dB 0. 0. 1.6mA O Min. Typ. Max. Unit 35 50 ...
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... Stereodecoder Part ELECTRICAL CHARACTERISTICS ( 500mV(75KHz deviation), fm= 1KHz 6dB, T MPX Symbol Parameter V MPX Input Level in R Input Resistance in G Min. Input Gain MIN G Max. Input Gain MAX G Step Resolution STEP SVRR Supply Voltage Ripple Rejection Max. channel Separation THD Total Harmonic Distortion ...
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... Traffic Radio (V.F.) Suppression: measured with: 91% stereo signal; 9% pilot signal; fm=1kHz; 5% subcarrier (f = 57kHz 23Hz AM 60%) 3. SCA ( Subsidiary Communications Authorization ) measured with: 81% mono signal; 9% pilot signal 1kHz; 10%SCA - subcarrier ( fs = 67kHz, unmodulated ). 4. ACI ( Adjacent Channel Interference ): measured with: 90% mono signal; 9% pilot signal; fm =1kHz; 1% spurious signal ( fs = 110kHz or 186kHz, unmodulated). ...
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... V Noise Rectifier RECTADJ discharge adjustment SR Noise Rectifier Charge PEAK ( design/characterization functionally guaranteed through dedicated test mode structure very low offset current during hold time due to opamps wMOS inputs four selectable pulse suppression times programmable noise rectifier charge/discharge current Test Condition meas. with ...
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... STEPS 30mV 0.9V D97AU648 10/28 Test Condition Signal PEAK in MPNB = 00 Testmode MPNB = 01 MPNB = 10 MPNB = and The repetition rate must not increase the PEAK voltage. R HIGH for the noise blanker trigger threshold for the noise controlled triggeradjustment for the over deviation detector ...
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... Rectifier Discharge Current DISMP Quality Detector Symbol Parameter A Multipath Influence Factor MONO STEREO NOISE ATC_SB OFF (11) noisy signal D97AU650 two pin solution fully independent usable for external programming selectable internal influence on Stereoblend Test Condition stereodecoder locked on Pilottono bits configuration byte = bits configuration byte = 10 ...
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... Multiplexer Output The output signal of the Input Multiplexer is avail- able at separate pins (please see the Blockdia- gram). This signal represents the input signal am- plifier by the In Gain stage and is also going into the Mixer stage. Softmute The digitally controlled softmute stage allows muting/demuting the signal with a I grammable slope ...
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... C BUS OUT D97AU634 Note: Please notice that a started Mute action is always terminated and could not be interrupted by a change of the mute signal. 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 demuting. Bass ...
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... Note: In general the center frequency, Q and DC-mode can be set independently. The exception from this rule is the mode (5/xx1111xx) where the center frequency is set to 150Hz instead of 100Hz. Figure 11. Treble Center Frequencies @ Gain = 14dB 15.0 12.5 10 ...
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... If any other source than the stereodecoder is se- lected the decoder remains muted and the MPX pin is connected to Vref to avoid any discharge of the coupling capacitor through leakage currents. Ingain + Infilter The Ingain stage allows to adjust the MPX signal to a magnitude of about 1Vrms internally which is the recommended value ...
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... The highcut function can be switched off by I bus (bit D , Fieldstrength byte set to "0"). 7 The setup of the highcut characteristics is de- scribed in 2.9. PLL and Pilot Tone Detector The PLL has the task to lock on the 19kHz pilo- 16/28 Figure 14. Internal Stereoblend Characteristics D97AU638 tone during a stereo transmission to allow a cor- rect demodulation ...
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... Highcut Control VHCH FIELDSTRENGHT The highcut control setup is similar to the stereoblend control setup : the starting point VHCH can be set with 2 bits to be 42, 50 66% of REF5V whereas the range can be set to be 17, 22 33% of VHCH (see fig. 21). FUNCTIONAL DESCRIPTION OF THE NOISE- BLANKER ...
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... D and D 0 Over Deviation Detector If the system is tuned to stations with a high de- viation the noiseblanker can trigger on the higher frequencies of the modulation. To avoid this wrong behaviour, which causes noise in the out- put signal, the noiseblanker offers a deviation de- pendent threshold adjustment ...
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... Quality = 1.6 (V The noise signal is the PEAK signal without addi- tional influences. The factor "a" can be pro- grammed from 0.7 to 1.15. the output is a low im- pedance output able to drive external circuitry as well as simply fed to an A/D converter for RDS applications. ...
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... SUBADDRESS MSB LSB Auto increment If bit I in the subaddress byte is set to "1", the autoincrement of the subaddress is enabled. TRANSMITTED DATA (send mode) MSB Soft mute activated Stereo mode X = Not Used LSB ...
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... DATA BYTE SPECIFICATION Input Selector (subaddress 0H) MSB Volume and Speaker Attenuation (subaddress 1H, 4H, 5H, 6H, 7H) MSB LSB Source Selector Cassette Phone Stereo Decoder Inputs Front Mute inputs Rear In-Gain 0 15dB 1 14dB : : must be "1" LSB +15dB : : : : : +1dB 0dB 0dB -1dB : : : : : -15dB -16dB : : : ...
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... TDA7400D Treble Filter (subaddress 2H) MSB Bass Filter (subaddress 3H) MSB 22/28 LSB Treble Steps -15dB -14dB : : : : : -1dB 0dB 0dB +1dB : : : : : +14dB +15dB Treble Center Frequency 10.0KHz 12.5KHz 15.0KHz 17.5KHz must be "1" LSB Bass Steps -15dB -14dB : : : : : -1dB 0dB 0dB +1dB : : : : : ...
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... Soft Mute and Bass Programming (subaddress 8H) MSB Only for Bass Q- Factor = 2.0 Stereodecoder (subaddress 9H) MSB LSB Mute 0 Enable Soft Mute 1 Disable Soft Mute 0 0 Mutetime = 0.48ms 0 1 Mutetime = 0.96ms 1 0 Mutetime = 40.4ms 1 1 Mutetime = 324ms 0 Stereodecoder Soft Mute Influence = on 1 Stereodecoder Soft Mute Influence = off ...
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... Max. High Cut 10dB 0 VHCH at 42% REF 5V 1 VHCH at 50% REF 5V 0 VHCH at 58% REF 5V 1 VHCH at 66% REF 5V VHCL at 16.7% VHCH VHCL at 22.2% VHCH VHCL at 27.8% VHCH VHCL at 33.3% VHCH Strong Multipath influence on PEAK 18K OFF ON (18K Discharge if V FUNCTION FUNCTION <2.5V) MPOUT ...
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... Noiseblanker Field strength Adj 1.8V 0 Noiseblanker Field strength Adj 1.3V 1 Noiseblanker Field strength Adj OFF Quality Detector Coefficient a = 0.7 Quality Detector Coefficient a = 0.85 Quality Detector Coefficient a = 1.0 Quality Detector Coefficient a = 1.15 Multipath off influence on PEAK discharge -1V/ms (at MPout = 2.5V LSB D3 D2 ...
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... Testing (subaddress FH) MSB Note : This byte is used for testing or evaluation purposes only and must not be set to other values than the default "11111110" in the application! 26/28 LSB Roll Off Compensation not allowed 19. 21. 25. 31.0% Level Gain 0 0dB 1 0.66dB 0 1.33dB : : 1 10dB must be "1" ...
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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.) inch MECHANICAL DATA TYP. MAX. 0.104 0.012 0.019 0.013 0.020 0.713 0.419 0.050 0.65 0.299 0.050 TDA7400D OUTLINE AND SO28 27/28 ...
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