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| NJM2701 3D SURROUND AUDIO PROCESSOR s GENERAL DESCRIPTION The NJM2701 is a 3D surround audio processor regenerating the 3D surround sound with only two speakers. The NJM2701 is suitable for audio applications, which are speaker system for mini components, CD radio cassette, multimedia speaker systems, TV and others. sPACKAGE OUTLINE NJM2701D s FEATURES q Operating Voltage 4.7 to 13V q Stereo mode * Stable center image and Natural sound field * High quality Surround * Free speaker interval q Monaural mode (Mono-to-Stereo Synthesis) q Surround control (Stereo mode only) q Internal Mode Control Switch q Bipolar Technology q Package Outline DIP14, DMP14 NJM2701M s BLOCK DIAGRAM LIN + + LOUT FILTER for Stereo & Monaural mode + Bypass STEREO MODE MONO MODE RIN ROUT -1- NJM2701 sABSOLUTE MAXIMUM RATING (Ta=25C) PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range s OPERATING VOLTAGE PARAMETER Operating Voltage SYMBOL V+ TEST CONDITION MIN. 4.7 TYP. 12.0 MAX. 13.0 UNIT V SYMBOL V + RATINGS 14 (DIP14) 500 (DMP14) 350 -40 to +85 -40 to +125 UNIT V mW C C PD Topr Tstg - sELECTRICAL CHARACTERISTICS (V+=12V,Ta=25C unless otherwise specified) TEST CONDITION PARAMETER Operating Current SYMBOL ICC No Signal INPUT L 0 0 0 R 0 0 0 MIN. OUTPUT MODE BYPASS Stereo Mono VR MAX 2.9 2.9 3.0 5.7 5.8 5.9 8.6 8.7 8.9 mA TYP. MAX. UNIT qAC CHARACTERISTICS (V+=12V,Ta=25C, VIN=-10dBV(316mVrms), f=1kHz,RL=4.7k, unless otherwise specified) TEST CONDITION PARAMETER Maximum Input Voltage SYMBOL VIM INPUT L f=1kHz T.H.D.=3% f=100Hz T.H.D.=3% f=1kHz T.H.D.=3% Output Noise VNO Rg=0 A-Weighted Rg=0 A-Weighted Rg=0 A-Weighted VIN 0 VIN 0 VIN VIN 0 R 0 VIN 0 VIN 0 0 0 MIN. OUTPUT L R L R L R L R L R L R MODE VR 9.9 (3.1) -3.8 (0.6) 6.9 (2.2) 11.9 (3.9) -1.8 (0.8) 8.9 (2.8) -112 (2.5) -100 (10) -103 (7.1) TYP. MAX. UNIT BYPASS - dBV (Vrms) Stereo MAX - Mono - -106 (5.0) -94 (20) -97 (14.1) dBV (Vrms) BYPASS - 0 0 Stereo MAX - 0 0 Mono - - -2- NJM2701 qAC CHARACTERISTICS (V+=12V,Ta=25C, VIN=-10dBV(316mVrms), f=1kHz,RL=4.7k, unless otherwise specified) TEST CONDITION PARAMETER Total Harmonic Distortion SYMBOL T.H.D f=1kHz f=1kHz Vin=-20dBV f=1kHz Bypass Gain GVBYP f=1kHz Surround Gain GVSUR f=100Hz Vin=-20dBV f=100Hz Vin=-20dBV f=100Hz Vin=-20dBV f=1kHz INPUT L VIN 0 VIN 0 VIN VIN VIN 0 VIN 0 0 VIN VIN 0 VIN VIN R 0 VIN 0 VIN 0 0 0 VIN 0 VIN VIN 0 0 VIN 0 0 MIN. OUTPUT L R L R L R L R L R L R L R L R MODE VR TYP. MAX. UNIT BYPASS - - 0.005 0.01 Stereo MAX - 0.1 0.5 % Mono - - 0.1 0.5 BYPASS - -1.0 0.0 1.0 dB Stereo MAX 10.7 12.7 14.7 Stereo MAX 8.4 10.4 12.4 dB Stereo MIN 3.6 5.6 7.6 Mono - 1.0 3.0 5.0 q CONTROL CHARACTERISTICS (V+=12V,Ta=25C unless otherwise specified) TEST CONDITION PARAMETER SYMBOL VIN= High Level VIN= Low Level INPUT L Mode Select Control Voltage R MIN. OUTPUT MODE VR 2.0 0.0 V+ V 0.7 TYP. MAX. UNIT VMODE sMODE SWITCH MODE BYPASS Stereo Mono SW1 L H H SW2 L H NOTES Input Through Surround Mode (Stereo Input) Surround Mode (Mono Input) -3- NJM2701 sTERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE V+ V+ 31.6K 1 FIL1 Filter Input 400 V+/2 V+ V+ 20K 2 FIL2 Filter Input 400 V+/2 V+ V+ V+ 5K 3 VOL Surround VR V+/2 V+ V+ 4 10 TEST1 TEST2 Test pin 50 50 V+/2 -4- NJM2701 PIN NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT V+ V+ V+ VOLTAGE 5 VREFIN Reference Voltage Input 50k V+/2 50k 6 V+ Power Supply V+ 7 GND GND 0V V+ V+ V+ 8 9 SW2 SW1 Mode Control Switch 700 150k 0V -5- NJM2701 PIN NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT V+ V+ VOLTAGE 11 12 ROUT LOUT Rch Output Lch Output 50 V+/2 50 V+ V+ V+ 13 14 RIN LIN Rch Input Lch Input V+/2 700 50k VREF -6- NJM2701 sAPPLICATION CIRCUIT Rch Output Rch Input Lch Output Lch Input 10K 10uF/50V R1 10K 8 SW2 GND 7 100uF/16V 10uF/50V C4 C5 R2 10uF/50V 10 TEST2 VREFIN 5 1uF/50V C3 14 LIN 10uF/50V C9 13 RIN 10uF/50V C8 12 LOUT 10uF/50V C7 C10 11 ROUT TEST1 FIL1 FIL2 VOL 1 0.0047uF C2 C1 2 0.027uF 3 Min 4 V+ 6 12V Max 50KB C1 10uF/50V Surround VR Note) In case of monaural mode (mono to stereo synthesis), input monaural signal into left channel input terminal (LIN). Parts No. R1,R2 C1 C2 Value 10k 0.0047F 0.027F Tolerance 5% 5% 5% Parts No. C3 C4 C5,C6,C7,C8,C9,C10,C11 SW1 C6 9 Value 1F 100F 10F Tolerance 20% 20% 20% -7- NJM2701 sTYPICAL CHARACTERISTICS Supply Current vs SupplyVoltage V+=1 to 18V Ta=25degrees 7 MONO 6 5.5 5 6 MONO STEREO BYPASS Supply Current vs Ambient Temperature V+=12V Supply Current [mA] STEREO 4 BYPASS Supply Current [mA] 5 3 2 4.5 1 0 0 5 10 15 20 4 -60 -40 -20 0 20 40 60 80 100 Supply Voltage [V] Ambient Temperature [degrees] Maximum Input Voltage vs Supply Voltage (BYPASS) Vin=Lch Vout=Lch f=1KHz RL=47Kohm Rg=25ohm Ta=25degrees 15 5 Maximum Input Voltage vs Supply Voltage (STEREO) Vin=Lch Vout=Lch f=1KHz RL=47Kohm Rg=25ohm Ta=25degrees 0 10 Maximum Input Voltage [dBV] 2 4 6 8 10 12 14 Maximum Input Voltage [dBV] -5 5 -10 0 -15 -5 -20 2 4 6 8 10 12 14 Supply Voltage [V] Supply Voltage [V] Maximum Input Voltage vs Supply Voltage (MONO) 15 Vin=Lch Vout=Lch f=1KHz RL=47Kohm Rg=25ohm Ta=25degrees 10 Maximum Input Voltage [dBV] 5 0 -5 -10 2 4 6 8 10 12 14 Supply Voltage [V] -8- NJM2701 sTYPICAL CHARACTERISTICS Output Noise vs Ambient Temperature V+=12V Vin=GND Vout=Lch -90 -90 Output Noise vs Ambient Temperature V+=12V Vin=GND Vout=Rch -95 STEREO -95 STEREO Output Noise [dBV] Output Noise [dBV] -100 MONO -100 MONO -105 BYPASS -110 -105 BYPASS -110 -115 -115 -120 -60 -40 -20 0 20 40 60 80 100 -120 -60 -40 -20 0 20 40 60 80 100 Ambient Temperature [degrees] Ambient Temperature [degrees] Total Harmonic Distortion vs Input Voltage (BYPASS) V+=12V f=100Hz RL=47Kohm Rg=25ohm BW=10 to 80KHz 10 10 Total Harmonic Distortion vs Input Voltage (BYPASS) V+=12V f=1KHz RL=47Kohm Rg=25ohm BW=10 to 80KHz 1 1 THD+N [%] 0.1 THD+N [%] Ta=85deg Ta=25deg Ta=-40deg 0.1 Ta=85deg Ta=25deg 0.01 Ta=-40deg 0.01 0.001 0.001 0.0001 -50 -40 -30 -20 -10 0 10 20 30 0.0001 -50 -40 -30 -20 -10 0 10 20 30 Input Voltage [dBV] Input Voltage [dBV] Total Harmonic Distortion vs Input Voltage (STEREO) 10 Total Harmonic Distortion vs Input Voltage (STEREO) V+=12V f=1KHz RL=47Kohm Rg=25ohm BW=10 to 80KHz 10 V+=12V f=100Hz RL=47Kohm Rg=25ohm BW=10 to 80KHz 1 1 THD+N [%] Ta=85deg Ta=25deg Ta=-40deg 0.1 THD+N [%] Ta=85deg Ta=25deg Ta=-40deg 0.1 0.01 -50 -40 -30 -20 -10 0 10 0.01 -50 -40 -30 -20 -10 0 10 Input Voltage [dBV] Input Voltage [dBV] -9- NJM2701 sTYPICAL CHARACTERISTICS Total Harmonic Distortion vs Input Voltage (MONO) V+=12V f=100Hz RL=47Kohm Rg=25ohm BW=10 to 80KHz 10 10 Total Harmonic Distortion vs Input Voltage (MONO) V+=12V f=1KHz RL=47Kohm Rg=25ohm BW=10 to 80KHz 1 1 THD+N [%] Ta=85deg. Ta=85deg Ta=25deg Ta=-40deg THD+N [%] Ta=25deg. Ta=-40deg. 0.1 0.1 0.01 -50 -40 -30 -20 -10 0 10 20 0.01 -50 -40 -30 -20 -10 0 10 20 Input Voltage [dBV] Input Voltage [dBV] Voltage Gain vs Frequency Response (BYPASS) V+=12V Vin=-10dBV Lch Vout=Lch RL=47Kohm Rg=25ohm 3 3 Voltage Gain vs Frequency Response (BYPASS) V+=12V Vin=-10 dBV Rch V out= Rch RL=47Kohm Rg=25ohm 2 2 Ta=-40deg Ta=-40deg Voltage Gain [dB] Voltage Gain [dB] 1 Ta=25deg Ta=85deg 0 1 Ta=25deg Ta=85deg 0 -1 -1 -2 -2 -3 10 100 1000 10 4 -3 10 5 10 100 1000 10 4 10 5 Frequency [Hz] Frequency [Hz] Voltage Gain vs Frequency Response (STEREO) V+=12V Vin=-20dBV Lch Vout=Lch RL=47Kohm Rg=25ohm 14 15 Voltage Gain vs Frequency Response (STEREO) V+=12V Vin=-20dBV Lch Vout=Rch RL=47Kohm Rg=25ohm 12 Ta=-40deg 10 Ta=25deg 10 Ta=-40deg. 5 Ta=25deg. Ta=85deg. 0 Voltage Gain [dB] 8 Ta=85deg 6 Input Voltage [dB] -5 4 -10 2 -15 0 -20 10 100 1000 10 4 -2 10 5 10 100 1000 10 4 10 5 Frequency [Hz] Frequency [Hz] - 10 - NJM2701 sTYPICAL CHARACTERISTICS Voltage Gain vs Frequency Response (MONO) V+=12V Vin=-10dBV Lch Vout=Lch RL=47Kohm Rg=25ohm 6 6 Voltage Gain vs Frequency Response (MONO) V+=12V Vin=-10dBV Lch Vout=Rch RL=47Kohm Rg=25ohm 5 Ta=-40deg. 5 Voltage Gain [dB] Voltage Gain [dB] 4 Ta=25deg. Ta=85deg. 4 Ta=-40deg. Ta=25deg. Ta=85deg. 3 3 2 2 1 1 0 10 100 1000 10 4 10 5 0 10 100 1000 10 4 10 5 Frequency [Hz] Frequency [Hz] Voltage Gain vs SW1 Control Voltage V+=12V Vin=-10dBV Lch f=100Hz Vout=Lch BYPASS --> STEREO 14 14 Voltage Gain vs SW2 Control Voltage V+=12V Vin=-10dBV Lch f=100Hz Vout=Lch STEREO --> MONO 12 Ta=85deg. Ta=25deg. Ta=-40deg. 12 10 Voltage Gain [dB] Voltage Gain [dB] 10 Ta=85deg. Ta=25deg. 8 8 Ta=-40deg. 6 6 4 4 2 2 0 -2 0 0.5 1 1.5 2 2.5 0 0 0.5 1 1.5 2 2.5 Control Voltage [V] Control Voltage [V] DC Offset Voltage vs Ambient Temperature V+=12V Vout=Lch 4 6 DC Offset Voltage vs Ambient Temperature V+=12V Vout=Rch BYPASS 2 4 BYPASS DC Offset Voltage [mV] DC Offset Voltage [mV] 2 0 STEREO 0 STEREO -2 MONO -4 -2 MONO -4 -6 -6 -8 -8 -60 -40 -20 0 20 40 60 80 100 -60 -40 -20 0 20 40 60 80 100 Ambient Temperature [degrees] Ambient Temperature [degrees] - 11 - NJM2701 [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. - 12 - |
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