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| NJM2194 PRELIMINARY SRS Dialog Clarity Processor sGENERAL DESCRIPTION The NJM2194 is a SRS Dialog Clarity Processor to enhance the dialog in a stereo signal by extracting the dialog information, augmenting it using a proprietary dialog clarity algorithm, and mixing it back in to the final stereo audio signal. When this stereo audio is played, the speech dialog becomes much easier to clearly hear while leaving the ambient information unchanged and the volume at a normal, more comfortable level for others in the room at the time. The NJM2194 is suitable for audio applications such as TV, DVD and others. sPACKAGE OUTLINE NJM2194D NJM2194M sFEATURES q Operating Voltage +4.7 to +13V q Low Output Noise 10Vrms typ. (Dialog Clarity mode, VR:MAX) q Adjustable Dialog Clarity Effect q Internal Mode Control Switch q Bipolar Technology q Package Outline DIP14, DMP14 sPIN CONFIGURATION 14 13 12 11 10 9 8 1.VROUT 2.VRIN 3.TP 4.VREFOUT 5.VREFIN 6.V+ 7.GND 1 2 3 4 5 6 7 8.SW 9.CIN 10.COUT 11.ROUT 12.LOUT 13.RIN 14.LIN The Dialog Clarity technology right incorporated in the NJM2194 are owned by SRS Labs, a U.S. Corporation and licensed to New Japan Radio Co., Ltd. Purchaser of NJM2194 must sign a license for use of the chip and display of the SRS Labs trademarks. Any products incorporating the NJM2194 must be sent to SRS Labs for review. Dialog Clarity is protected under U.S. and foreign patents issued and/or pending. Dialog Clarity, SRS and the symbol are trademarks of SRS Labs, Inc. in the United States and selected foreign countries. Neither the purchase of the NJM2194, nor the corresponding sale of audio enhancement equipment conveys the right to sell commercialized recordings made with any SRS technology. SRS Labs requires all set makers to comply with all rules and regulations as outlined in the SRS Trademark Usage Manual separately provided. For further information, please contact: SRS Labs, Inc. 2909 Daimler Street. Santa Ana, CA 92705 USA Tel: 949-442-1070 Fax: 949-852-1099 http: //www.srslabs.com - 1 -B NJM2194 sBLOCK DIAGRAM 9 10 1 2 8 a 12 14 50k b Dialog Clarity a 13 50k 50k V+ GND 50k Vref 4 5 6 11 b a:Bypass b:Dialog Clarity 7 sABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL RATINGS UNIT V + 14 (DIP14) 500 (DMP14) 350 -40 to +85 -40 to +125 V mW C C PD Topr Tstg sOPERATING VOLTAGE PARAMETER Operating Voltage SYMBOL V + TEST CONDITION - MIN. 4.7 TYP. 12.0 MAX. 13.0 UNIT V sELECTRICAL CHARACTERISTICS (Ta=25C, V =12V unless otherwise specified) TEST CONDITION PARAMETER Operating Current SYMBOL ICC No Signal 0 Reference Voltage VREF No Signal 0 0 0 DC MAX 5.8 5.7 6.0 8.6 6.2 V INPUT L 0 R 0 MIN. OUTPUT + TYP. MAX. UNIT MODE Bypass VR 5.7 8.6 mA - -2- NJM2194 q AC CHARACTERISTICS + (Ta=25C, V =12V, VIN=-10dBV (=316mVrms), f=1kHz, RL=4.7k unless otherwise specified) TEST CONDITION PARAMETER Maximum Input Voltage SYMBOL VIM INPUT L f=1kHz THD=3% f=1kHz THD=3% Output Noise VNO Rg=0 A-Weighted Rg=0 A-Weighted Total Harmonic Distortion THD f=1kHz f=1kHz VIN=-20dBV Bypass Gain GVBYP f=1kHz Dialog Clarity Gain GVDC f=1kHz VIN=-20dBV f=1kHz VIN=-20dBV f=1kHz VIN=-20dBV VIN 0 VIN 0 0 R 0 VIN 0 VIN 0 MIN. OUTPUT TYP. MAX. UNIT MODE VR 10.0 (3.1) 3.4 (1.5) 12.0 (3.9) 5.4 (1.9) -112 (2.5) -100 (10) 0.005 L R L R L R L R L R L R L R L R L R L R Bypass - dBV (Vrms) -106 (5.0) -94 (20) 0.01 % DC MAX Bypass - dBV (Vrms) 0 VIN 0 VIN 0 VIN 0 VIN 0 0 VIN VIN 0 0 0 VIN 0 VIN 0 VIN 0 VIN VIN 0 0 VIN DC MAX - Bypass - - DC MAX - 0.1 0.5 Bypass - -1.0 0.0 1.0 dB DC MAX 4.4 6.4 8.4 DC MAX -0.4 1.6 3.6 dB DC MIN -1.0 0.0 1.0 q CONTROL CHARACTERISTICS (Ta=25C, V =12V unless otherwise specified) PARAMETER Mode Select Control Voltage SYMBOL VIN=High Level VMODE VIN=Low Level 0.0 0.7 TEST CONDITION MIN. 2.0 TYP. MAX. V + + UNIT V sMODE SWITCH MODE Bypass Dialog Clarity (DC) SW L or Open H Input Through NOTES Dialog Clarity mode -3- NJM2194 sTERMINAL DESCRIPTION PIN No. SYMBOL EQUIVALENT CIRCUIT V+ V+ VOLTAGE NOTE 1 4 10 11 12 VROUT VREFOUT COUT ROUT LOUT 50 V /2 50 + V+ V+ 2 3 VRIN TP 400 V /2 + V+ V+ V+ 50k 5 VREFIN 50k V /2 + 6 V + V + -4- NJM2194 sTERMINAL DESCRIPTION PIN No. SYMBOL EQUIVALENT CIRCUIT VOLTAGE NOTE 7 GND 0V V+ V+ V+ 8 SW 700 150k 0V V+ V+ 9 CIN 400 V+/2 10k VREF V+ V+ V+ 13 14 RIN LIN 700 50k V+/2 VREF -5- NJM2194 sAPPLICATION CIRCUIT Rch Out put Lch Output Lch Input 10F 14 50k 50k 1 Max Min 10kB VR 10F C8 13 ) Dialog Clarity Effect is adjustable with the VR Rch Input 10F C7 2 10k R1 C4 C5 0.022F 10 9 8 C3 10F 10F 12 C6 Vref 3 11 a b Dialog Clarity a b a:Bypass b:Dialog Clarity 50k 50k 4 10F 1F C1 5 C2 6 7 12V -6- NJM2194 sTYPICAL CHARACTERISTICS Operating Current vs. Operating Voltage V+=1 to 15V, Ta=25oC 10 6 DC BYPASS Operating Current vs. Temperature V+=12V 8 5.5 Operating Current [mA] 6 Operation Current [mA] 5 4 DC BYPASS 2 4.5 0 0 2 4 6 8 10 12 14 4 -50 0 50 100 150 Ta [ oC] Operating Voltage [V] Maximum Input Voltage vs. Operating Voltage (BYPASS) Vin=Lch, Vout=Lch, f=1KHz, RL=4.7k, 20 Rg=25 , Ta=25oC Maximum Input Voltage vs. Operating Voltage (DC) Vin=Lch, Vout=Lch, f=1kHz, RL=4.7k, Rg=25, Ta=25oC 20 15 15 Maximum Input Voltage [dBV] 10 Maximum Input Voltage [dBV] 10 5 5 0 0 -5 -5 -10 0 4 8 12 16 -10 0 4 8 12 16 Operating Voltage [V] Operating Voltage [V] Maximum Input Voltage vs. Temperature (BYPASS) V+=12V, Vin=Lch, Vout=Lch, f=1kHz, RL=4.7k , Rg=25 13 Maximum Input Voltage vs. Temperature (DC) V+=12V, Vin=Lch, Vout=Lch, f=1KHz, RL=4.7k , Rg=25 6 Maximum Input Voltage [dBV] 12 Maximum Input Voltage [dBV] 12.5 5.5 5 11.5 4.5 11 -50 0 50 100 150 4 -50 0 50 100 150 Ta [ oC] Ta [ oC] -7- NJM2194 sTYPICAL CHARACTERISTICS Output vs. Temperature V+=12V, Vin=GND, Vout=Lch -90 Output Noise Voltage vs. temperature V+=12V, Vin=GND, Vout=Rch -90 -95 -95 Output Noise Voltage [dBV] Output Noise Voltage [dBV] -100 -100 DC DC -105 BYPASS -110 -105 BYPASS -110 -115 -115 -120 -100 -50 0 50 100 150 -120 -100 -50 0 50 100 150 Ta [ oC] Ta [ C] o Total Harmonic Distotion vs. Input Voltage (BYPASS) V+=12V, Vin=Lch, Vout=Lch, f=100Hz, RL=4.7k Rg=25 , BW=10-80kHz 10 Total Harmonic Distortion vs. Input Voltage (BYPASS) V+=12V, Vin=Lch, Vout=Lch, f=1kHz, RL=4.7k Rg=25 , BW=10-80kHz 10 1 1 THD+N [%] THD+N [%] Ta=85oC 0.1 Ta=25 oC Ta=-40 oC 0.01 Ta=85oC 0.1 Ta=25oC Ta=-40 oC 0.01 0.001 -50 -40 -30 -20 -10 0 10 20 30 0.001 -50 -40 -30 -20 -10 0 10 20 30 Input Voltage [dBV] Input Voltage [dBV] Total Harmonic Distortion vs. Input Voltage (BYPASS) V+=12V, Vin=Lch, Vout=Lch, f=10kHz, RL=4.7k Rg=25 , BW=10-80kHz 10 Total Harmonic Distortion vs. Input Voltage (DC) V+=12V, Vin=Lch, Vout=Lch, f=1kHz, RL=4.7k , Rg=25 , BW=10-80kHz 10 1 1 THD+N [%] Ta=85 oC 0.1 Ta=25oC Ta=-40oC 0.01 THD+N [%] Ta=85 oC Ta=25 oC Ta=-40oC 0.1 0.001 -50 -40 -30 -20 -10 0 10 20 30 0.01 -50 -40 -30 -20 -10 0 10 20 Input Voltage [dBV] Input Voltage [dBV] -8- NJM2194 sTYPICAL CHARACTERISTICS Total Harmonic Distortion vs. Input Voltage (DC) V+=12V, Vin=Lch, Vout=Lch, f=10kHz, RL=4.7k , Rg=25 , BW=10-80kHz 10 Frequency Responce (BYPASS) V+=12V, Vin=-10dBV Lch, Vout=Lch, RL=4.7k, Rg=25 1 0.5 1 Ta=85 oC Ta=25 oC THD+N [%] Ta=25oC Ta=-40oC 0.1 Gain [dB] Ta=85oC Ta=-40 C 0 o -0.5 0.01 -50 -40 -30 -20 -10 0 10 20 -1 10 100 1000 10 4 10 5 Input Voltage [dBV] Frequency [Hz] Frequency Responce (DC) V+=12V, Vin=-20dBV Lch, Vout=Lch, RL=4.7k, Rg=25 10 10 Frequency Responce (DC) V+=12V, Vin=-20dBV Lch, Vout=Rch, RL=4.7k, Rg=25 5 8 Ta=85oC 6 Ta=25 C o 0 Ta=85 oC Ta=25 oC Gain [dB] Gain [dB] Ta=-40 C 4 o -5 Ta=-40oC -10 -15 2 -20 0 -25 -2 10 100 1000 10 -30 4 10 5 10 100 1000 10 4 10 5 Frequency [Hz] Frequency [Hz] Gain vs. SW Control Voltage V+=12V, Vin=-20dBV Lch, Vout=Lch, f=1kHz, BYPASS-->DC 20 6 DC Offset Voltage vs. Temperature V+=12V, Vout=Lch 15 DC 5.5 BYPASS 10 Ta=85 oC 5 Ta=25oC Ta=-40oC 0 DC Offset Voltage [mV] Gain [dB] 5 -5 -10 0 0.5 1 1.5 2 4.5 -50 0 50 100 150 SW Control Voltage [V] Ta [ C] o -9- NJM2194 sTYPICAL CHARACTERISTICS DC Offset Voltage vs. Temperature V+=12V, Vout=Rch 6 DC Offset Voltage [mV] 5.5 DC BYPASS 5 4.5 -50 0 50 100 150 Ta [ C] o [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. - 10 - |
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