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STMicroelectronics 7464 - 7464 (STMicroelectronics) - DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER
| Наименование: | 7464 |
|---|---|
| Производитель: | STMicroelectronics |
| Файл: | 7464_STMicroelectronics.pdf |
| Скачать datasheet: |
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| Описание: | TDA7464 DIGITALLY CONTROLLED AUDIO PROCESSOR WITH SRS SURROUND SOUND AND VOICE CANCELLER The Device incorporates the SRS (Sound Retrieval System) under licence from SRS Labs, Inc. 4 STEREO INPUTS INPUT ATTENUATION CONTROL IN 0.5dB STEP TREBLE MIDDLE AND BASS CONTROL VOICE CANCELLER IS AVAILABLE STEREO SRS SURROUND SOUND WITH CENTER & SPACE CONTROL IS AVAILABLE THREE STANDARD SURROUND MODES ARE AVAILABLE: - MUSIC IN 4 DIFFERENT SELECTABLE RESPONSES - MOVIE AND SIMULATED IN 256 DIFFERENT SELECTABLE RESPONSES 2 SPEAKERS OUTPUTS - INDEPENDENT ATTENUATORS IN 1dB STEP FOR BALANCE FACILITY - ZERO CROSSING ATTENUATION AVAILABLE - INDEPENDENT MUTE FUNCTION 2 RECORD OUTPUTS - INDEPENDENT ATTENUATORS IN 1dB STEP FOR BALANCE FACILITY - MUX AVAILABLE FORPROCESSES SIGNAL SELECTION - INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SERIAL BUS TQFP44 ORDERING NUMBER: TDA7464 PIN CONNECTION R_IN4 R_IN3 R_IN2 CREF 44 43 42 41 40 39 38 37 36 35 34 LP1 HP1 HP2 NETW1 NETW2 VAR_L BASSO_L VAR_R BASSO_R BASS_LO BASS_LI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 33 32 31 30 29 28 27 26 25 24 23 R_IN1 VREFOUT L_IN1 L_IN2 L_IN3 L_IN4 RECOUT_L RECOUT_R L_OUT R_OUT DIG_GND DESCRIPTION The TDA7464 is a volume tone (bass middle and treble) balance (Left/Right) processors with stereo SRS and voice canceller for quality audio applications in car radio, Hi-Fi, TV systems. It reproduces SRS (Sound Retrieval System) sound by external components and surround sound by using phase shifters and a signal matrix. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers according to the SRS laboratories MIDDLE_LO BASS_RI MIDDLE_RI TREBLE_L BASS_RO MIDDLE_RO MIDDLE_LI TREBLE_R AGND SDA SCL LPVC D96AU483C PS1 PS2 PS3 PS4 LP specification. Control of all the functions is accomplished by serial bus. Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained. VS February 1998 1/21 MIDDLE-LI MIDDLE-LO 50K + V REF 100K CENTER 4 NETW1 18 TREBLE-R SPACE 17 32 44 LP 1K 1.2nF 130K 5.6nF 4.42K 1.5K 32.4K 47.5K 4.7nF 0.47ВµF NETW2 5 STEREO SRS 0.22ВµF LPF + VOICE ON MIX SW FIX SRS AGND CREF VREFOUT MIDDLE-RI 18nF 2.7K 22nF MIDDLE-RO 100nF 22ВµF BASS-RI 2/21 100nF 2.2ВµF 4.7nF 22nF 22nF 5.6nF 2.7K 18nF 22nF 100nF 5.6K 100nF PS1 43 MIX SW RPS1 FIX 30K + 27 79dB CONTROL SURR REC ATT VAR REAR MUTE 3BAND 79dB CONTROL + FIX SPKR ATT MUTE RPS2 RPS3 RPS4 RM RB 42 41 40 19 15 14 11 10 7 6 N.B. SW PS2 PS3 PS4 TREBLE-L BASS-LI BASS-LO BASSO-L VAR-L PS1 90Hz MUSIC R6 OFF SURR MOVIE/ SIM SRS FIX PS2 4KHz PS3 400Hz PS4 400Hz RECOUT-L 25 + MIXING AMP TREBLE BASS MIDDLE SIM L-OUT + L-R I2 C BUS DECODER + LATCHES MOVIE/ MUSIC 22 21 23 SCL SDA DIG_GND LPF 9KHz TREBLE SURR MIDDLE BASS FIX FIX + 3BAND VAR MUTE REAR SURR REC ATT MUTE 30K N.B. SW RM 16 13 RB 12 BASS-RO 79dB CONTROL BASSO-R 9 8 VAR-R D96AU481D TDA7464 BLOCK DIAGRAM 5.6nF 680nF LP1 HP1 HP2 0.22ВµF 31 1 31.5dB control 2 3 L-IN1 50K 0.22ВµF 30 RLP1 RHP1 L-IN2 50K 0.22ВµF 29 R5 L-IN3 50K - 0.22ВµF 28 + L-IN4 50K 0.22ВµF 33 + R-IN1 50K EFFECT CONTROL MIXING AMP 79dB CONTROL SPKR ATT 0.22ВµF 35 + R-IN2 50K - 0.22ВµF 36 24 R-IN3 R-OUT 37 26 R-IN4 RECOUT-R 50K 31.5dB control 38 SUPPLY 34 39 20 LPVC VS 2.2ВµF 100nF 5.6K 100nF 0.47ВµF 3.74K TDA7464 THERMAL DATA Symbol R th j-pins Thermal Resistance Junction-pins Ma x. Value 85 Unit В°C/W ABSOLUTE MAXIMUM RATINGS Symbol VS T amb Tstg Operating Supply Voltage Operating Ambient Temperature Storage Temperature Range Parameter Value 11 -10 to 85 -55 to +150 Unit V В°C В°C QUICK REFERENCE DATA Symbol VS VCL THD S/N SC Supply Voltage Max. input signal handling Total Harmonic Distortion V = 1Vrms f = 1KHz Signal to Noise Ratio V out = 1Vrms (mode = OFF) Channel Separation f = 1KHz Input Attenuation Control (0.5dB) Treble Control (2db step) Middle Control (2db step) Bass Control (2dB step) Balance Control Mute Attenuation 1dB step (LCH, RCH) -31.5 -14 -14 -14 -79 100 Parameter Min. 7 2 0.01 106 90 0 +14 +14 +14 0 0.1 Typ. 9 Max. 10.2 Unit V Vrms % dB dB dB dB dB dB dB dB ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb = 25В°C, VS = 9V, RL = 10KΩ, Vin = 1Vrms; RG = 600Ω, all controls flat (G = 0dB), Effect Ctrl = -6dB, MODE = OFF; f = 1KHz unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit SUPPLY VS IS SVR Supply Voltage Supply Current Ripple Rejection LCH / RCH out, Mode = OFF 60 7 9 25 80 10.2 V mA dB INPUT STAGE R IN V CL ARANGE AVMIN AVMAX ASTEP VDC AVO1 AVO2 Input Resistance Clipping Level Attenuation Range Min. Attenuation Max. Attenuation Step Resolution DC Steps Voice Canceller Output 1 Voice Canceller Output 2 Adjacent att. step LIN = RIN, RIN = ON, Vmix = 0V FIX, 0dB attenuation LIN = RIN = 0V Vmix = 1Vrms FIX, 0dB attenuation -1 31 -1 -3 5 -1 THD = 0.3% 37.5 2 50 2.5 31.5 0 31.5 0.5 0 6 0 1 32 1 3 7 1 62.5 KΩ Vrms dB dB dB dB mV dB dB 3/21 TDA7464 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit SUPPLY AVO3 RLPV Voice Canceller Output 3 Low Pass Filter Resistance LIN = -RIN, Vmix = 0V FIX, 0dB attenuation 5 24 6 32 7 40 dB KΩ BASS CONTROL Gb BSTEP RB Control Range Step Resolution Internal Feedback Resistance Max. Boost/cut +12.0 1 33 +14.0 2 44 +16.0 3 55 dB dB KΩ MIDDLE CONTROL Gm M STEP RM Control Range Step Resolution Internal Feedback Resistance Max. Boost/cut +12.0 1 18.75 +14.0 2 25 +16.0 3 31.25 dB dB KΩ TREBLE CONTROL Gt TSTEP Control Range Step Resolution Max. Boost/cut +13.0 1 +14.0 2 +15.0 3 dB dB STANDARD SURROUND SOUND MATRIX TEST CONDITION (Phase Resistor Selection D0=0, D1=1, D2=0. D3=1, D4=0, D5=1, D6=0, D7=1 Symbol GOFF Parameter In-phase Gain (OFF) Test Condition Mode OFF, Input signal of 1kHz, 1.4 Vp-p, Rin в†’ Rout Lin в†’ Lout Mode OFF, Input signal of 1kHz, 1.4 Vp-p R in в†’ Rout, Lin в†’ Lout Movie mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p R in в†’ Rout, Lin в†’ Lout Movie mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin в†’ Rout) – (Lin в†’ Lout) Music mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin в†’ Rout), (Lin в†’ Lout) Music mode, Effect Ctrl = -6dB Input signal of 1kHz, 1.4 Vp-p (Rin в†’ Rout) - (Lin в†’ Lout) Simulated Mode, EffectCtrl = -6dB Input signal of 250Hz, 1.4 Vp-p, Rin and Lin в†’ Lou t Simulated Mode, EffectCtrl = -6dB Input signal of 1kHz, 1.4 Vp-p, Rin and Lin в†’ Lou t Simulated Mode, EffectCtrl = -6dB Input signal of 3.6kHz, 1.4 Vp-p, Rin and Lin в†’ Lou t Min. -1 Typ. 0 Max. 1 Unit dB D GOFF LR In-phase Gain Difference (OFF) In-phase Gain (Movie) -1 0 1 dB GMOV 8 dB DGMOV LR In-phase Gain Difference (Movie) In-phase Gain (Music) 0 dB GMUS 7 dB D GMUS LR In-phase Gain Difference (Music) Simulated L Output 1 0 dB LMON1 4.5 dB LMON2 Simulated L Output 2 – 4.0 dB LMON3 Simulated L Output 3 7.0 dB 4/21 TDA7464 ELECTRICAL CHARACTERISTICS (continued) Symbol R MON1 Parameter Simulated R Output 1 Test Condition Simulated Mode, EffectCtrl = -6dB Input signal of 250Hz, 1.4 Vp-p, Rin and Lin в†’Rout Simulated Mode, EffectCtrl = -6dB Input signal of 1kHz, 1.4 Vp-p, Rin and Lin в†’Rout Simulated Mode, EffectCtrl = -6dB Input signal of 3.6kHz, 1.4 Vp-p, Rin and Lin в†’ Rout Min. Typ. – 4.5 Max. Unit dB R MON2 Simulated R Output 2 3.8 dB R MON3 Simulated R Output 3 – 20 dB RLP1 R HPI RLPF C RANGE SSTEP Low Pass Filter Resistance High Pass Filter Resistance LP Pin Impedance 7.5 45 7.5 10 60 10 12.5 75 12.5 KΩ KΩ KΩ STANDARD SURROUND SOUND EFFECT CONTROL Control Range Step Resolution - 21 1 -6 dB dB SURROUND SOUND MATRIX PHASE R PS10 R PS11 R PS12 R PS13 R PS20 R PS21 R PS22 R PS23 R PS30 R PS31 R PS32 R PS33 R PS40 R PS41 R PS42 R PS43 Phase Shifter 1: D1 = 0, D0 = 0 Phase Shifter 1: D1 = 0, D0 = 1 Phase Phase Phase Phase Phase Phase Phase Phase Phase Phase Phase Phase Phase Phase Shifter 1: Shifter 1: Shifter 2: Shifter 2: Shifter 2: Shifter 2: Shifter 3: Shifter 3: Shifter 3: Shifter 3: Shifter 4: Shifter 4: Shifter 4: Shifter 4: D1 = D1 = D3 = D3 = D3 = D3 = D5 = D5 = D5 = D5 = D7 = D7 = D7 = D7 = 1, D0 1, D0 0, D2 0, D2 1, D2 1, D2 0, D4 0, D4 1, D4 1, D4 0, D6 0, D6 1, D6 1, D6 =0 =1 =0 =1 =0 =1 =0 =1 =0 =1 =0 =1 =0 =1 8.8 10.6 13.4 28 4.2 5.1 6.3 13.7 9 10.9 13.6 29.3 9 10.9 13.6 29.3 11.8 14.1 17.9 37.3 5.6 6.8 8.4 18.3 12.1 14.5 18.1 39.1 12.1 14.5 18.1 39.1 14.8 17.6 22.4 46.6 7 8.5 10.5 22.9 15.1 18.1 22.6 48.9 15.1 18.1 22.6 48.9 KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ KΩ SRS SURROUND SOUND MATRIX CENTER StepC SPACE StepS PERSP1 SRS Control Range Center Step Resolution SRS Space Control Range Space Step Resolution Perspective 1 Input Signal of 125Hz SPACE = 0dB, CENTER = MUTE Rin = GND; Lin в†’ ROUT Input Signal of 2.15KHz SPACE = 0dB, CENTER = MUTE Rin = GND; Lin в†’ ROUT SPACE = MUTE, CENTER =0dB Rin = GND; Lin в†’ ROUT SPACE = MUTE, CENTER = MUTE Rin = GND; Lin в†’ LOUT Lin = GND; Rin в†’ ROUT -31 1 -31 1 12 0 0 dB dB dB dB dB PERSP2 Perspective 2 0 dB L+R L, R L+ R SRS Curve L, R SRS Curve -8.5 -13.4 dB dB 5/21 TDA7464 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit SPEAKER & RECORD ATTENUATORS Crange SSTEP EA VDC AMUTE RVAR Control Range Step Resolution Attenuation set error DC Steps Output Mute Condition Input Impedance Av = 0 to -20dB Av = -20 to -79dB Adjacent att. steps 0.5 -1.5 -3 -3 70 22.5 79 1 0 0 0 100 30 37.5 1.5 1.5 2 3 dB dB dB dB mV dB KΩ SPEAKER ATTENUATORS V TH Zero CrossingThreshold D7 = 0 VS + 20 2 mV AUDIO OUTPUTS NO(OFF) NO(MOV) NO(MUS) NO(SIM) NO(SRS) d SC VOCL ROUT VOUT Output Noise (OFF) Output Noise (Movie) Standard Surround Sound Output Noise (Music) Standard Surround Sound Output Noise (Simulated) Standard Surround Sound Output Noise (SRS) Surround Sound Distorsion Channel Separat |
