NJM2188

NJM2188 PRELI M I N ARY Passive Matrix TruSurroundTM 3D Audio Processor sGENERAL DESCRIPTION TM The NJM2188 is a Passive Matrix TruSurround 3D audio processor. It regenerates the full surround sound field directly from any kinds of surround encoded stereo input(Lt/Rt) signals. After the internal passive matrix circuit decodes Lt/Rt signal into 4 channel signals, the TruSurround virtualizer encodes them into 2 channel surround signals again. Accordingly any pre-processors decoding into 4 channel signals are not required. The NJM2188 also includes the SRS 3D-STEREO, and regenerates a 3D sound field from normal L/R input. The NJM2188 is suitable for TV, mini component, CD radio cassette, multimedia speaker system ,and others. sPACKAGE NJM2188D NJM2188M NJM2188V sFEATURES (4.7 to 13V) qOperating Voltage + (1.5Vrms typ. at V ≥11V) qMaximum Input Voltage (32µVrms typ. at TRU mode) qLow Output Noise qSRS 3D-STEREO FUNCTION (Two-grade Switch for 3D Effect) (THROUGH) qBYPASS FUNCTION qBipolar Technology DIP16, DMP16, SSOP16 qPackage Outline The TruSurround technology right incorporated in the NJM2188 are owned by SRS Labs, a U.S. Corporation and licensed to New Japan Radio Co., Ltd. SRS is protected under U.S. and foreign patents issued and/or pending. TruSurround and the , are trademarks of SRS Labs, Inc. in the United States and selected foreign countries. Neither the purchase of the NJM2188, nor the corresponding sale of audio enhancement equipment conveys the right to sell commercialized recordings made with any TruSurround technology. SRS Labs requires that all users of the NJM2188 must enter into a license agreement directly with SRS Labs if the royalty is not included in the purchase price. SRS Labs also requires any users to comply with all rules and regulations as outlined in the SRS Trademark Usage Manual. 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 -A NJM2188 sBLOCK DIAGRAM FIL1_OUT FIL1_IN2 FIL1_IN1 FIL1_IN3 51K 20K BYPASS TRU SW3 SW1 Lch in 50K 3.9K 1K 15K 150K 11K Lch out SRS 3D-1 VREF 12.5K 5K 6.18K 45K 37.5K TRU SW4 VREF SRS 3D1 SRS 3D-2 MIX TRU (SRS 3D) BYPASS SW2 TRU (SRS 3D) V+ VREF VREF 20K Rch out Rch in 50K SW4 SW3 SW2 SW1 VREF 50K VREF 50K MIX SRS 3D-2 50K V+ VREF VREF VREF SW Control 50K VREF GND MODE1 MODE2 FIL2_OUT FIL2_IN sPIN CONFIGRATION FIL2_IN2 No. 1 Symbol MODE1 MODE2 V+ VREF FIL2_OUT FIL2_IN FIL2_IN2 GND Rch OUT Lch OUT FIL1_IN3 FIL1_IN2 FIL1_IN1 FIL1_OUT Rch IN Lch IN Function Mode Switch Mode Switch Supply Voltage 4.5V to 13V V+/2 OUTPUT Perspective Network_2 output Perspective Network_2 input Perspective Network_2 input2 Ground Rch OUTPUT Lch OUTPUT Perspective Network_1 INPUT3 Perspective Network_1 INPUT2 Perspective Network_1 INPUT1 Perspective Network_1 OUTPUT Rch INPUT Lch INPUT MODE 1 MODE 2 V + 1 2 3 4 16 15 14 13 Lch in Rch in FIL1_OUT FIL1_IN1 FIL1_IN2 FIL1_IN3 Lch out Rch out 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VREF FIL2_OUT FIL2_IN FIL2_IN2 GND NJM2188 5 6 7 8 12 11 10 9 -2- NJM2188 sABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL + V PD Topr Tstg + RATING 15 (DIP16) 500 (DMP16) 300 (SSOP16) 300 -40 to +85 -40 to +125 UNIT V mW °C °C sELECTRICAL CHARACTERISTICS(V =12V,Ta=25°C) CONDITION PARAMETER Operating Voltage SYMBOL L V + IN R 0 0 0 0 VIN 0 0 VIN 0 0 VIN 0 0 VIN OUT L MODE BYPASS TRU SRS 3D-1 - MIN TYP MAX UNIT 0 4.7 12.0 13.0 V Supply Current Icc No Signal 0 0 - 9.0 13.5 mA Reference Voltage VREF V /2 + VIN 0 VIN 5.5 6.0 6.5 V f=1kHz THD=3% BYPASS R L R L L R L L R L SRS3D-2 SRS3D-1 TRU 11.0 (3.55) 4.5 (1.67) 7.3 (2.32) 3.9 (1.57) 7.5 (2.37) 7.3 (2.32) 4.0 (1.58) 7.5 (2.37) 7.5 (2.37) 4.5 (1.68) 12.0 (3.98) 6.5 (2.11) 9.3 (2.92) 5.9 (1.97) 9.5 (3.0) 9.3 (2.92) 6.0 (2.0) 9.5 (3.0) 9.5 (3.0) 6.5 (2.11) - dBV (Vrms) f=125Hz THD=3% VIN VIN Maximum Input Voltage VINMAX f=125Hz THD=3% VIN VIN VIN VIN f=125Hz THD=3% VIN VIN -3- NJM2188 sELECTRICAL CHARACTERISTICS(V =12V,Ta=25°C) + CONDITION PARAMETER SYMBOL L 0 0 Output Noise A- Weighting Rg=0Ω 0 0 0 0 VIN 0 Total Harmonic Distortion THD f=1kHz VIN=-10dB VIN VIN VIN VIN Bypass Gain Passive Gain VIN GBypass2 f=1kz 0 GLt/Rt-L GLt/Rt-R f=1kHz f=1kHz VIN VIN VIN f=1kHz SRS 3D Gain GSRS3D VIN f=1kHz VIN 0 MODE Select Control Voltage VIN=High Level VMODE VIN=Low Level 0.0 0.7 0 0 VIN L R L SRS3D-2 -5.8 -21.1 -21.1 2.0 -3.8 -19.1 -19.1 -1.8 -17.1 -17.1 V + IN R 0 0 0 0 0 0 0 VIN 0 0 0 0 0 VIN 0 0 0 0 VIN OUT L MODE MIN TYP MAX UNIT BYPASS R L TRU R L SRS3D-1 R L BYPASS R L TRU R L SRS3D-1 R L BYPASS R L TRU R L R L SRS3D-1 - -110 (3.16) -100 (10.0) VNOISE - -90 (31.6) -84 (63.1) dBV (µVrms) - -90 (31.6) 0.01 0.01 0.10 0.20 0.10 0.20 0.0 0.0 2.2 -12.0 -2.8 -13.1 -13.1 -84 (63.1) % 1.0 dB 1.0 4.2 dB -10.0 -0.8 -11.1 -11.1 dB -1.0 -1.0 0.2 -14.0 -4.8 -15.1 -15.1 VIN 0 dB V -4- NJM2188 sMODESELECT SWITCH MODE BYPASS TRU SRS 3D-1 SRS 3D-2 MODE1 L L H H MODE2 L H L H NOTE INPUT THROUGH MODE Passive Matrix TruSurround SRS 3D STEREO MODE Space 100% Center 90% SRS 3D STEREO MODE Space 90% Center 70% sAPPLICATION CIRCUIT Lch in Rch in VREF 0.01uF C10 10uF/50V C11 10uF/50V FIL1_IN1 C1 C2 0.22uF C4 C3 0.0047uF 0.22uF C8 10uF/50V C9 10uF/50V Lch out Rch out Lch out FIL2_IN2 56K R12 2M R10 33K 75K FIL1_IN2 12V C13 V+ 100uF/25V NJM2188 FIL2_OUT MODE1 MODE2 VREF FIL2_IN GND GND 100uF /25V C5 0.0047uF R13 R15 GND GND 1.8K R16 C12 V+ FIL1_OUT H L H R17 10K R9 L 10K C14 10uF/50V GND C15 10uF/50V VREF R11 51K C6 FIL1_IN3 GND GND GND 0.01uF 1.5K R14 C7 0.0047uF VREF VREF VREF PARTS NO. C1,C6 C2,C4 C3,C5,C7 C8,C9,C10,C11 C14,C15 C12,C13 R9 R10 R11 VALUE 0.01µF 0.22µF 0.0047µF 10µF 10µF 100µF 1.8k 2M 51k Tolerance ±5% ±5% ±5% PARTS NO. R12 R13 R14 R15 R16,R17 VALUE 56k 33k 1.5k 75k 10k Tolerance ±5% ±5% ±5% ±5% ±5% ±5% ±5% ±5% Rch out Lch in Rch in -5- NJM2188 sTYPICAL CHARACTERISTICS FREQUENCY RESPONSE BYPASS MODE +5 +10 +5 FREQUENCY RESPONSE TRU(Lt/Rt) MODE +0 a, b +0 a, c -5 -10 Vout (dBV) -15 Vout -10 (dBV) -15 -20 -20 b, d -25 -25 -30 20 50 100 200 500 1k 2k 5k 10k 20k -30 20 50 100 200 500 1k 2k 5k 10k 20k f(Hz) a: Vin = 0dBV Lch ⇒ Vout = Lch b: Vin = 0dBV Rch ⇒ Vout = Rch V+=12V, 0dB V = 1Vrms f(Hz) a: Vin = 0dBV Lch ⇒ Vout = Lch b: Vin = 0dBV Lch ⇒ Vout = Rch c: Vin = 0dBV Rch ⇒ Vout = Rch d: Vin = 0dBV Rch ⇒ Vout = Lch + V =12V, 0dBV = 1Vrms FREQUENCY RESPONSE SRS 3D-1 MODE +10 +5 +10 +5 FREQUENCY RESPONSE SRS 3D-2 MODE +0 +0 -5 -5 Vout (dBV) a, c -10 Vout (dBV) -10 a, c -15 -15 -20 b, d -20 b, d -25 -25 -30 20 50 100 200 500 1k 2k 5k 10k 20k -30 20 50 100 200 500 1k 2k 5k 10k 20k f(Hz) a: Vin = 0dBV Lch ⇒ Vout = Lch b: Vin = 0dBV Lch ⇒ Vout = Rch c: Vin = 0dBV Rch ⇒ Vout = Rch d: Vin = 0dBV Rch ⇒ Vout = Lch V+=12V, 0dBV = 1Vrms f(Hz) a: Vin = 0dBV Lch ⇒ Vout = Lch b: Vin = 0dBV Lch ⇒ Vout = Rch c: Vin = 0dBV Rch ⇒ Vout = Rch d: Vin = 0dBV Rch ⇒ Vout = Lch + V =12V, 0dBV = 1Vrms -6- NJM2188 TOTAL HARMONIC DISTORTION vs. INPUT VOLTAGE BYPASS MODE 5 2 1 0.5 0.2 0.1 0.05 1 0.5 2 10 5 TOTAL HARMONIC DISTORTION vs. INPUT VOLTAGE TRU MODE THD(%) 0.02 0.01 0.005 0.002 0.001 THD(%) 0.2 a a, b 0.1 0.05 b 0.0005 0.02 0.0002 0.0001 -30 -25 -20 -15 -10 -5 +0 +5 +10 +15 0.01 -30 -25 -20 -15 -10 -5 +0 +5 +10 +15 INPUT LEVEL(dBV) Lch ⇒ Vout = Lch Lch ⇒ Vout = Rch INPUT LEVEL(dBV) a: Vin = 1kHz b: Vin = 1kHz + V =12V Lch ⇒ Vout = Lch Lch ⇒ Vout = Rch a: Vin = 1kHz b: Vin = 1kHz + V =12V TOTAL HARMONIC DISTORTION vs. INPUT VOLTAGE SRS 3D-1 MODE 10 5 10 5 TOTAL HARMONIC DISTORTION vs. INPUT VOLTAGE SRS 3D-2 MODE 2 1 0.5 2 1 0.5 THD(%) 0.2 0.1 a THD(%) 0.2 0.1 0.05 b b 0.05 a 0.02 0.01 -30 0.02 0.01 -30 -25 -20 -15 -10 -5 +0 +5 +10 +15 -25 -20 -15 -10 -5 +0 +5 +10 +15 INPUT LEVEL(dBV) a: Vin = 1kHz b: Vin = 1kHz + V =12V Lch ⇒ Vout = Lch Lch ⇒ Vout = Rch a: Vin = 1kHz b: Vin = 1kHz + V =12V INPUT LEVEL(dBV) Lch ⇒ Vout = Lch Lch ⇒ Vout = Rch [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. -7-