TDA7409DTR

TDA7409 CARRADIO-SIGNAL-PROCESSOR ■ 4 STEREO INPUTSSOFTSTEP-VOLUME ■ BASS, TREBLE AND LOUDNESS CONTROL ■ DIRECT MUTE AND SOFTMUTE ■ INTERNAL BEEP ■ FOUR INDEPENDENT SPEAKER-OUTPUTS ■ SUBWOOFER STEREO OUTPUT ■ DIGITAL CONTROL: 2 ● I C-BUS INTERFACE ● AUDIO-FILTER CHARACTERISTICS PROGRAMMABLE ) s ( ct u d o r P e SO20 ORDERING NUMBER: TDA7409D DESCRIPTION The TDA7409 is a high performance signal processor specificall designed for car radio applications. The device includes a high performance audioprocessor with fully integrated audio filters. The digital control allows a programming in a wide range of all the filter characteristics. By the use of a BICMOS- )- s b O s ( t c BLOCK DIAGRAM t e l o s b O SE1R process and a linear signal processing low distortion and low noise are obtained. u d o r P e SE1L t e l o MUTE GAIN/ AUTO ZERO MONO FADER MONO FADER MONO FADER SE2L SE2R SE3L INPUT MULTIPLEXER MONO/ BEEP MIXING STAGE LOUDNESS VOLUME SOFT MUTE TREBLE BASS MONO FADER MONO FADER MONO FADER SE3R SE4L SE4L BEEP OUTLF OUTRF OUTLR OUTRR SWL SWR ZERO CROSS GND VREF VS SUPPLY SCL DIGITAL CONTROL I2C-BUS SDA D00AU1178 September 2003 1/25 TDA7409 SUPPLY Symbol Parameter Test Condition Min. Typ. Max. Unit 7.5 9 10.5 V Vs Supply Voltage Is Supply Current Vs = 9V 20 mA Ripple Rejection @ 1KHz Audioprocessor(all Filters flat) 60 dB Value Unit SVRR THERMAL DATA Symbol Parameter RTh j-pins Thermal Resistance Junction-pins max u d o ABSOLUTE MAXIMUM RATINGS Symbol r P e Parameter t e l o Operating Supply Voltage Vs Tamb Operating Temperature Range Tstg Storage Temperature Range bs O ) ESD All pins are protected against ESD according to the MIL883 standard. PIN CONNECTION let o s b O s ( t c u d o r P e SE1L 1 20 VS SE1R 2 19 SDA SE2L 3 18 SCL SE2R 4 17 MUTE SE3L 5 16 OUTLF SE3R 6 15 OUTLR SE4R 7 14 OUTRR SE4L 8 13 OUTRF CREF 9 12 SWL GND 10 11 SWR D00AU1179 2/25 ) s ( ct 85 °C/W Value Unit 10.8 V -40 to 85 °C -55 to +150 °C TDA7409 FEATURES: Input Multiplexer 4 single-end stereo inputs In-Gain 0..14dB, 1dB steps, 14..20dB, 2dB steps Auto Zero Beep internal Beep with 3 frequencies 781Hz/1.56KHz/1.8KHz Mixing stage 4 step-mixing-stage with mono or beep as mix-signals Loudness second order frequenciy response programmable center frequency 15 x 1dB steps selectable low & high frequency boost selectable flat-mode (constant sttenuation) Volume 1 dB attenuator 100dB range soft-step control with programmable times Bass 2nd order frequency response center frequency programmable in 4 steps 60Hz/80Hz/100Hz/200Hz Q programmable 1.0/1.25/1.5/2.0 DC gain programmable +15dB x 1dB steps ) (s ) s ( ct u d o r P e t e l o s b O t c u Treble 2nd order frequency response center frequency programmable in 4 steps 10KHz/12.5KHz/15KHz/17.5KHz +15dB x 1dB steps d o r P e t e l o Speaker s b O 4 independent speaker controls in 1dB steps control range 50dB with mute Zero crossing attenuate Subwoofer Stereo output attenuator range 50dB Mute Functions direct mute digitally controlled Soft Mute with 4 programmable mute-times 3/25 TDA7409 ELECTRICAL CHARACTERISTICS (VS =9V; TAMB=25 ;RL=10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 70 100 130 kΩ 2.20 2.60 VRMS dB INPUT SELECTOR Rin Input Resistance VCL Clipping Level SIN Input Separation 80 100 GIN MIN Min. Input Gain -1 0 1 GIN MAX Max. Input Gain 18 20 22 GSTEP Step Resolution 0.5 1 Adjacent Gain Steps -5 1 GMIN to GMAX -10 VDC all single ended Inputs DC Steps Voffset P e Remaining offset with AutoZero t e l o BEEP CONTROL VRMS fB Beep Level Beep Frequency fB1 fB2 ) (s fB3 t c u MIXING CONTROL MLEVEL Mixing Level d o r P e t e l o s b O s b O 5 (s) ct 1.5 du ro dB dB dB 5 mV 10 mV 0.5 mV 250 350 500 mV 740 781 820 Hz 1.48 1.56 1.64 kHz 1.7 1.8 1.9 kHz Main / Mix-Source 0/00 dB Main / Mix-Source -0.5/10.6 -3.5/9.6 -2.5/8.6 dB Main / Mix-Source -5/-5 -6/-6 -7/-7 dB Main / Mix-Source -11/1.5 -12/2.5 -13/3.5 dB VOLUME CONTROL GMAX Max. Gain 28 30 32 dB AMAX Max. Attenuation -83 -79 -75 dB ASTEP Step Resolution 0.5 1 1.5 dB G = -20 to +20dB -1 0 1 dB G = -80 to -20dB -4 0 3 dB 2 dB EA ET 4/25 Attenuation Set Error Tracking Error TDA7409 ELECTRICAL CHARACTERISTICS (continued) Symbol VDC Parameter Test Conditions Min. Typ. Max. Unit Adjacent Steps 0.1 3 mV From 0dB to GMIN 0.5 5 mV DC Steps LOUDNESS CONTROL ASTEP Step Resolution 0.5 1 1.5 dB AMAX Max. Attenuation 13 15 17 dB fC Center Frequency 360 400 440 Hz 720 800 880 Hz 2.3 2.41 2.5 kHz SOFT MUTE u d o AMUTE TD Mute Attenuation Delay Time ol bs T3 T4 VTH low Low Threshold for SM-Pin2 VTH high High Threshold for SM - Pin RPU Internal pull-up resistor VPU Pull-Up Voltage TSW t e l o bs O O ) s ( t c u d o r P e Switch time ete T1 T2 SOFT STEP Pr 80 ) s ( ct 100 dB 0.48 1 ms 0.96 2 ms 20 30.7 50 ms 70 123 170 ms 1 V 2.50 70 V 100 130 kΩ 5 V TSW1 0.68 ms TSW2 1.26 ms TSW3 2.52 ms TSW4 5.04 ms 1) Center frequency 2.4KHz makes 1KHz bottom frequency at low & high frequency boost condition. 2) The SM-Pin is active low (Mute = 0) BASS CONTROL CRANGE ASTEP fC Control Range +14 +15 +16 dB Step Resolution 0.5 1 1.5 dB fC1 54 60 66 Hz fC2 72 80 88 Hz fC3 90 100 110 Hz fC4 180 200 220 Hz Center Frequency 5/25 TDA7409 ELECTRICAL CHARACTERISTICS (continued) Symbol QBASS DCGAIN Parameter Min. Typ. Max. Q1 0.9 1 1.1 Q2 1.1 1.25 1.4 Q3 1.3 1.5 1.7 Q4 1.8 2 2.2 DC = off -1 0 1 dB DC = on 4 4.4 6 dB Control Range +14 +15 +16 dB Step Resolution 0.5 1.5 dB 10 12 kHz 10 12.5 15 kHz 12 15 18 kHz 14 17.5 21 kHz -53 50 -47 dB 0.5 1 1.5 dB 80 90 Quality Factor Test Conditions Bass-DC-Gain ) s ( ct TREBLE CONTROL CRANGE ASTEP fC Center Frequency fC1 8 ete fC2 ol fC3 bs fC4 O ) SPEAKER ATTENUATORS CRANGE Control Range ASTEP Step Resolution AMUTE Output Mute Attenuation EE u d o Pr VDC DC Steps TZC Zero Cross Timer ete s ( t c only for attenuation up to 24dB Attenuation Set Error Pr -2 Adjacent Attenuation Steps Data bit D1=1 , D2=1 29 ol Vth s b O u d o 1 Zero Cross Threshold Unit dB 2 dB 0.10 5 mV 37 45 ms +20 mV 2.60 VRMS FADER OUTPUTS VCLIP Clipping Level RL Output Load Resistance CL Output Load Capacitance d = 0.3% 2.20 2 kΩ 10 nF 30 100 Ω 4.3 4.5 4.7 V Control Range -53 50 -47 dB ASTEP Step Resolution 0.5 1 1.5 dB AMUTE Output Mute Attenuation 80 90 ROUT Output Impedance VDC DC Voltage Level SUBWOOFER ATTENUATORS CRANGE 6/25 dB TDA7409 ELECTRICAL CHARACTERISTICS (continued) Symbol EE Parameter Test Conditions Min. Typ. VDC Attenuation Set Error DC Steps Max. Unit 2 dB Adjacent Attenuation Steps 0.10 5 mV 15 µV GENERAL eNO Output Noise BW = 20Hz - 20kHz all gains = 0dB single ended inputs 10 S/N Signal to Noise Ratio all gains = 0dB flat; VO = 2VRMS 106 bass, treble at +12dB; a-weighted; VO = 2.6VRMS 100 d Distortion VOUT = 1VRMS ; Bass & Treble = 12dB SC Channel Separation left/right ET Total Tracking Error r P e t e l o bs AV = 0 to -20dB -O AV = -20 to -60dB ) s ( ct ) s ( ct u d o VIN = 1VRMS ; all stages 0dB internal pass only dB dB 0.005 0.1 % 0.05 0.1 % 80 100 dB -1 0 1 dB -2 0 2 dB 1.0 DESCRIPTION OF FUNCTIONALITY u d o 1.1 Input stages The input stages have remained the same as in preceding ST-Audioprocessors. r P e t e l o Figure 1. Input-stages bs SE1 O INGAIN 100K SE2 100K SE3 100K SE4 100K D00AU1180 7/25 TDA7409 1.2 AutoZero In order to reduce the number of pins there is no AC coupling between the In-Gain and the following stage, so that any offset generated by or before the In-Gain-stage would be transferred or even amplified to the output. To avoid that effect a special Offset-cancellation-stage called AutoZero is implemented. This stage is located before the Mixing-block to eliminate all offsets generated by the Input-Stages and the In-Gain (Please notice that externally generated offsets, e.g. generated through the leakage current of the coupling capacitors, are not canceled). The auto-zeroing is started every time the DATA-BYTE 0 (Input Selector/Gain) is selected and takes a time of max. 0.3ms. To avoid audible clicks the Audioprocessor is muted before the loudness stage during this time. 1.2.1 AutoZero-Remain In some cases, for example if the uP is executing a refresh cycle of the IIC-Bus-programming, it is not useful to start a new AutoZero-action because no new source is selected and an undesired mute would appear at the outputs. For such applications the TDA7409 could be switched in the AutoZero-Remain-Mode (I2 bit of the subaddress-byte). If this bit is set to high, the DATABYTE 0 could be loaded without invoking the AutoZero and the old adjustment-value remains. ) s ( ct u d o r P e 1.3 Mixing Stage The 4 step 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 mixing-stage is located behind the In-Gain-stage fine adjustments of the main source level could be done in this way. t e l o Figure 2. Signal-Flow of Mixing-Stage ) (s INPUT SELECTOR ct SE1 SE2 SE3 SE4 e t e ol o r P du s b O INGAIN MIXING + - MIXING LEVEL INPUT / BEEP 25K 0dB -3.5dB -6dB -12dB / -100dB / -9.6dB / -6dB / -2.5dB BEEP D00AU1181 s b O 1.4 Loudness There are four parameters programmable in the loudness stage: 1.4.1 Attenuation Figure 3 shows the attenuation as a function of frequency at fC = 400Hz. 8/25 LOUDNESS TDA7409 Figure 3. Loudness Attenuation @ fC = 400Hz    ) s ( ct  u d o    t e l o -  r P e - s b O 1.4.2 Center Frequency Figure 4 shows the three possible peak-frequencies 400Hz , 800Hz and 2.4kHz. ) (s Figure 4. Loudness Center frequencies @ Attn. = 15dB t c u d o r  P e t e l o  s b O       - - 9/25 TDA7409 1.4.3 Low & High Frequency Boost Figure 5 shows the different Loudness-shapes in low & high frequency boost. Figure 5. Loudness Attenuation , fC = 2.4KHz   ) s ( ct  u d o  r P e    bs t e l o -  - O ) s ( t c 1.5 SoftMute The digitally controlled SoftMute stage allows muting/demuting the signal with a I2C-bus programmable slope. The mute process can either be activated by the Mute pin or by the I2C-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 0 of the I2C-bus output register is set to 1 from the start of muting until the end of de-muting. u d o r P e t e l o Figure 6. Softmute-Timing s b O Note: Please notice that a started Mute-action is always terminated and could not be interrupted by a change of the mute -signal. 10/25 TDA7409 1.6 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 audiosignal. With the SoftStep-feature both kinds of clicks could be reduced to a minimum and are no more audible. Four programmable soft step time from one step to the next, are user selectable. Figure 7. SoftStep-Timing Vout 2dB ) s ( ct 1dB u Time d o SS Time r P e -1dB t e l o -2dB s b O Note: For steps more than 1dB the SoftStep mode should be deactivated because it could generate a 1dB error during the blend-time. ) (s 1.7 Bass There are three parameters programmable in the bass stage: t c u 1.7.1 Attenuation Figure 8 shows the attenuation as a function of frequency at a center frequency of 80Hz. d o r Figure 8. Bass Control @ fC = 80Hz, Q = 1 P e t e l o 15.0 O bs 10.0 5.0 dB 0.0 -5.0 -10.0 -15.0 10.0 100.0 Hz 1.0K 10.0K 11/25 TDA7409 1.7.2 Center Frequency Figure 9 shows the four possible center frequencies 60, 80 ,100 and 200Hz. Figure 9. Bass center Frequencies @ Gain = 15dB, Q = 1   ) s ( ct  u d o  r P e     ) (s t e l o s b O - - 1.7.3 Quality Factors Figure 10 shows the four possible quality factors 1, 1.25, 1.5 and 2. t c u Figure 10. Bass Quality factors @ Gain = 14dB, fC = 80Hz d o r P e 15.0 t e l o 12.5 s b O 10.0 7.5 5.0 2.5 0.0 10.0 12/25 100.0 1.0K 10.0K TDA7409 1.7.4 DC Mode In this mode the DC-gain is increased by 4.4dB. In addition the programmed center frequency and quality factor is decreased by 25% which can be used to reach alternative center frequencies or quality factors. Figure 11. Bass normal and DC Mode @ Gain = 14dB, fC = 80Hz 15.0 12.5 10.0 ) s ( ct 7.5 u d o 5.0 r P e 2.5 t e l o 0.0 10.0 100.0 s b O 1.0K 10.0K Note: The center frequency, Q and DC-mode can be set fully independently. ) (s 1.8 Treble There are two parameters programmable in the treble stage: t c u 1.8.1 Attenuation Figure 12 shows the attenuation as a function of frequency at a center frequency of 17.5kHz. d o r P e Figure 12. Treble Control @ fC = 17.5kHz t e l o O bs            - - 13/25 TDA7409 1.8.2 Center Frequency Figure 13 shows the four possible center frequencies 10k, 12.5k, 15k and 17.5kHz. Figure 13. Treble Center Frequencies @ Gain = 15dB   ) s ( ct  u d o  r P e t e l o     ) (s s b O - - t c u 1.9 Speaker Attenuator Due to practical aspects the steps in the speaker-attenuators are not linear over the full range. At attenuations more than 24dB the steps increase from 1.5dB to 10dB (please see data byte specification). d o r P e 1.10 Subwoofer Attenuator The Subwoofer output is a single ended stereo output. The attenuator is exactly the same like the other speakers. t e l o s b O 14/25 TDA7409 2.0 I2C BUS INTERFACE 2.1 Interface Protocol The interface protocol comprises: ■ a start condition (S) ■ a chip address byte (the LSB bit determines read / write transmission) ■ a subaddress byte ■ a sequence of data (N-bytes + acknowledge) ■ a stop condition (P) ■ the max. CLOCK SPEED is 500kbits/s SUBADDRESS CHIP ADDRESS MSB S 1 LSB 0 0 0 1 0 0 R/W MSB ACK LSB I3 I2 I1 I0 A3 A2 A1 A0 MSB ACK S = Start R/W ="0" -> Receive-Mode (Chip could be programmed by P) "1" -> Transmission-Mode (Data could be received by P) ACK = Acknowledge P = Stop ) (s MSB X X ct X u d o X u d o ACK ACK P t e l o s b O X LSB r P e D99AU1044 2.2 TRANSMITTED DATA (send mode) ) s ( ct DATA 1 to DATA n LSB X X SM SM = Soft mute activated X = Not Used The transmitted data is automatic updated after each ACK. Transmission can be repeated without new chipaddress. r P e 2.3 Reset Condition A Power-On-Reset is invoked if the Supply-Voltage is below than 3.5V. After that the following data is written automatically into the registers of all subaddresses : t e l o s b O MSB 1 LSB 1 1 1 1 1 1 0 The programming after POR is marked bold-face / underlined in the programming tables. With this programming all the outputs are muted to VREF (VOUT= VDD/2). Note : All the blank bits in the following tables are "don't care"-bits. 15/25 TDA7409 2.4 SUBADDRESS (receive mode) MSB LSB FUNCTION I2 I3 I1 I0 A3 A2 A1 A0 Zero cross / Soft Mute 1 Zero Cross available Soft Mute available 0 1 AutoZero Remain 2 off on 0 1 u d o Auto-Increment Mode 4 off on 0 1 1 2 3 4 0 0 0 0 0 0 0 0 1 1 1 1 1 1 d o r 0 0 0 0 1 1 1 1 0 0 0 0 1 1 ) (s t c u 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 r P e Input Selector / Gain Loudness Volume Treble Bass Speaker attenuator LF / Bass Fc select Speaker attenuator RF Speaker attenuator LR Speaker attenuator RR Subwoofer attenuator LSW Subwoofer attenuator RSW SoftMute / Mixing Others selection Testing s b O t e l o For more information see Soft Mute-section For more information see AutoZero-section For more information see Test Programming block 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. s b O 16/25 P e t e l o ) s ( ct Testmode 3 off on 0 1 TDA7409 2.5 DATA BYTE SPECIFICATION 2.5.1 Input Selector / Gain MSB LSB D6 D7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 D5 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 X X 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 X X D4 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 X X D7 D6 P e t e l o D5 D4 s b O 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 D2 D1 D0 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 0 1 1 0 1 0 1 FUNCTION Source Selector Not used Single Ended 1 Mute Single Ended 2 Single Ended 4 Single Ended 3 Mute Beep Input Gain 0dB 1dB 2dB 3dB 4dB 5dB 6dB 7dB 8dB 9dB 10dB 11dB 12dB 13dB 14dB 16dB 18dB 20dB ) s ( ct u d o r P e t e l o ) (s s b O t c u d o r 2.5.2 Loudness MSB D3 LSB D3 D2 D1 D0 0 0 : 1 1 0 0 : 1 1 0 0 : 1 1 0 1 : 0 1 LOUDNESS Attenuation 0 dB -1 dB : -14 dB -15 dB Filter / Center Frequency off(flat) 'D6 must be = 0' 400Hz 800Hz 2.4KHz Shape Low Boost Low & High Boost SoftStep-Volume off on Note 1: The attenuation is specified at high frequencies. Around the center frequency the value is different depending on the programmed attenuation (see Loudness-frequency-response). 17/25 TDA7409 2.5.3 Volume MSB LSB ATTENUATION D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 0 1 1 1 1 0 0 0 1 0 0 0 1 0 0 0 1 0 0 1 1 1 1 1 1 1 0 0 1 1 1 X 1 1 X 1 1 X 1 0 1 0 1 0 1 X Gain/Attenuation not allow not allow +30.0dB +29.0dB : +1.0dB 0.0dB - 1.0dB - 2.0dB : -78.0dB -79.0dB Mute ) s ( ct u d o r P e 0 Must BE “0” Note 2: It is 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. t e l o 2.5.4 Treble Programming bs MSB LSB D6 D7 D5 D4 O ) D3 s ( t c u d o r P e t e l o s b O 0 1 X X X X 18/25 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 D2 D1 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 BASS & TREBLE PROGRAMMING D0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Treble Steps 15dB 14dB 13dB 12dB 11dB 10dB 9dB 8dB 7dB 6dB 5dB 4dB 3dB 2dB 1dB 0dB Mode Cut Boost Treble Center Frequency 10KHz 12.5KHz 15KHz 17.5KHz TDA7409 2.5.5 Bass Programming MSB LSB D6 D7 D5 D4 D3 D2 D1 D0 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 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 ) s ( ct u d o r P e t e l o bs 0 1 0 1 Quality Factor 1 1.25 1.5 2 O ) s ( t c 0 1 Bass Steps 15dB 14dB 13dB 12dB 11dB 10dB 9dB 8dB 7dB 6dB 5dB 4dB 3dB 2dB 1dB 0dB Mode Cut Boost 0 1 0 0 1 1 BASS & TREBLE PROGRAMMING DC - Mode Off On u d o Note 3: For more information please refer to section Bass description r P e D5 D4 D3 D2 D1 D0 0 0 : 0 0 0 0 0 0 0 0 0 1 0 0 : 1 1 1 1 1 1 1 1 1 X 0 0 : 0 1 1 1 1 1 1 1 1 X 0 0 : 1 0 0 0 0 1 1 1 1 X 0 0 : 1 0 0 1 1 0 0 1 1 X 0 1 : 1 0 1 0 1 0 1 0 1 X 2.5.6 Speaker Attenuator Left Front MSB let D7 D6 so b O 0 0 1 1 0 1 0 1 LSB ATTENUATION / BASS CF Attenuation 0 dB -1 dB : -23 dB -24.5dB -26 dB -28 dB -30 dB -32 dB -35 dB -40 dB -50 dB Speaker Mute Bass Center-Frequency 60Hz 80Hz 100Hz 200Hz 19/25 TDA7409 2.5.7 Speaker Attenuator Right Front MSB LSB ATTENUATION D7 X D6 D5 D4 D3 D2 D1 D0 X 0 0 : 0 0 0 0 0 0 0 0 0 1 0 0 : 1 1 1 1 1 1 1 1 1 X 0 0 : 0 1 1 1 1 1 1 1 1 X 0 0 : 1 0 0 0 0 1 1 1 1 X 0 0 : 1 0 0 1 1 0 0 1 1 X 0 1 : 1 0 1 0 1 0 1 0 1 X 2.5.8 Speaker Attenuator Left Rear MSB D6 s b O 20/25 X D4 D3 0 0 : 0 0 0 0 0 0 0 0 0 1 0 0 : 1 1 1 1 1 1 1 1 1 X 0 0 : 0 1 1 1 1 1 1 1 1 X D2 bs D1 O ) s ( t c u d o r P e t e l o X D5 0 0 : 1 0 0 0 0 1 1 1 1 X 0 0 : 1 0 0 1 1 0 0 1 1 X ATTENUATION / Soft Step Time D0 0 1 : 1 0 1 0 1 0 1 0 1 X ) s ( ct u d o r P e t e l o LSB D7 Attenuation 0 dB -1 dB : -23 dB -24.5dB -26 dB -28 dB -30 dB -32 dB -35 dB -40 dB -50 dB Speaker Mute Attenuation 0 dB -1 dB : -23 dB -24.5dB -26 dB -28 dB -30 dB -32 dB -35 dB -40 dB -50 dB Speaker Mute TDA7409 2.5.9 Speaker Attenuator Right Rear MSB LSB ATTENUATION D7 X D6 D5 D4 D3 D2 D1 D0 X 0 0 : 0 0 0 0 0 0 0 0 0 1 0 0 : 1 1 1 1 1 1 1 1 1 X 0 0 : 0 1 1 1 1 1 1 1 1 X 0 0 : 1 0 0 0 0 1 1 1 1 X 0 0 : 1 0 0 1 1 0 0 1 1 X 0 1 : 1 0 1 0 1 0 1 0 1 X 2.5.10 Subwoofer Attenuator (Left & Right) MSB D6 X D4 D3 0 0 : 0 0 0 0 0 0 0 0 0 1 0 0 : 1 1 1 1 1 1 1 1 1 X 0 0 : 0 1 1 1 1 1 1 1 1 X D2 ) (s t c u d o r P e t e l o X D5 0 0 : 1 0 0 0 0 1 1 1 1 X s b O D1 D0 0 0 : 1 0 0 1 1 0 0 1 1 X 0 1 : 1 0 1 0 1 0 1 0 1 X ) s ( ct u d o r P e t e l o LSB D7 Attenuation 0 dB -1 dB : -23 dB -24.5dB -26 dB -28 dB -30 dB -32 dB -35 dB -40 dB -50 dB Speaker Mute FUNCTION Attenuation 0 dB -1 dB : -23 dB -24.5dB -26 dB -28 dB -30 dB -32 dB -35 dB -40 dB -50 dB Speaker Mute s b O 21/25 TDA7409 2.5.11 SoftMute and Mixing MSB LSB FUNCTION D6 D7 D5 D4 D3 D2 D1 D0 0 1 0 0 1 1 Mute enable SoftMute disable SoftMute Mute/Zero Cross-Times 0.48ms 0.96ms 30.7ms / 9ms 122.8ms / 37ms 0 1 0 1 ) s ( ct Must BE “0” 0 0 0 1 1 0 0 1 1 u d o Mixing-Level (Main / Mix-Source) -12 / -2.5dB -6 / -6dB -3.5 / -9.6dB 0 /∞ 0 1 0 1 r P e t e l o 0 1 0 1 ) (s 2.5.12 Others t c u MSB D6 D7 D5 D4 r P e t e l o s b O 0 1 22/25 0 1 0 1 D2 1 1 0 0 1 1 1 od D3 s b O Beep Frequency 781Hz 1.56KHz Not allow 1.8KHz LSB FUNCTION D1 D0 X 0 AC-Coupling Internal pass Must be "1" Must be "1" Soft Step Time 0.68ms 1.26ms 2.52ms 5.04ms Must be "1" for Auto zero Internal Beep Off ON TDA7409 2.5.13 Testing MSB LSB D6 D7 1 D5 D4 D3 X X X X X X X X X X X X X X X X X X D2 D1 Testing D0 0 1 Main-Testmode off on Test-Multiplexer internal 200kHz Clock internal Bandgap Voltage 0 1 Clock external internal 0 1 1 ) s ( ct must be "1" u d o r P e Figure 14. TDA7409 Application Circuit t e l o 100nF TAPEL 100nF o r P 100nF ete 100nF FM_R s b O ol 100nF AM_L 100nF AM_R 100nF CD_L 100nF CD_R s ( t c SE1L OUTLF OUTLR du TAPER FM_L )- MUTE MUTE s b O SE1R OUTRR SE2L OUTRF SE2R SWL SE3L SWR 4.7µF OUTLF 4.7µF OUTLR 4.7µF OUTRR 4.7µF OUTRF 4.7µF SWL 4.7µF SWR SCL SE3R SCL SDA SDA SE4L 100nF SE4R CREF 10µF 10µF + 9V D00AU1182 23/25 TDA7409 mm inch OUTLINE AND MECHANICAL DATA DIM. MIN. TYP. MAX. MIN. TYP. MAX. A 2.35 2.65 0.093 0.104 A1 0.1 0.3 0.004 0.012 B 0.33 0.51 0.013 0.020 C 0.23 0.32 0.009 0.013 D 12.6 13 0.496 0.512 E 7.4 7.6 0.291 0.299 e 1.27 u d o 0.050 H 10 10.65 0.394 0.419 h 0.25 0.75 0.010 0.030 L 0.4 1.27 0.016 0.050 K ) s ( ct 0˚ (min.)8˚ (max.) ) (s r P e t e l o s b O t c u od r P e let so B b O L SO20 h x 45˚ A e A1 K H D 20 11 E 1 0 1 SO20MEC 24/25 C TDA7409 ) s ( ct u d o r P e t e l o ) (s s b O t c u d o r P e t e l o s b O Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication 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. 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