NJM2198 PRELIMINARY SRS 3D SURROUND AUDIO PROCESSOR ■GENERAL DESCRIPTION The NJM2198 is a SRS 3D surround audio processor regenerating the 3D surround sound with only two speakers. It regenerates 3D surround sound from both of monaural and stereo input. The features of wide operating voltage range, wide dynamic range, low output noise are suitable for any audio applications. ■PACKAGE OUTLINE NJM2198L ■FEATURES ● Operating Voltage ● Low Supply Current ● Low Output Noise ● BYPASS Gain ● BYPASS FUNCTION ● WIDTH control ● Internal Mode Control Switch ● Bipolar Technology ● Package Outline (4.7 to 13V) (7.8mA typ. at 3D Stereo mode) (32µVrms typ. at 3D Stereo mode) (0dB typ.) (Through) NJM2198M (2bit) SDIP22,DMP24 The SRS technology right incorporated in the NJM2198 are owned by SRS Labs, a U.S. Corporation and licensed to New Japan , are trademarks of SRS Radio Co., Ltd. SRS is protected under U.S. and foreign patents issued and/or pending. SRS and the Labs, Inc. in the United States and selected foreign countries. Neither the purchase of the NJM2198, nor the corresponding sale of audio enhancement equipment conveys the right to sell commercialized recordings made with any SRS technology. SRS Labs requires that all users of the NJM2198 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:714-442-1070 Fax:714-852-1099 http://www.srslabs.com -1- NJM2198 ■ ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V+ 15 V Power Dissipation PD Operating Temperature Range Topr -40 to +85 °C Storage Temperature Range Tstg -40 to +125 °C (SDIP22) (SDMP24) 700 700 mW ■ELECTRICAL CHARACTERISTICS (V+=12V,Ta=25°C, VIN=-10dBV(316mVrms) unless otherwise noted) TEST CONDITION PARAMETER Operating Voltage Operating Current Reference Voltage Maximum Input Voltage Channel Balance -2- SYMBOL INPUT VREF VINMAX CHBAL MODE WIDTH VOLUME MIN. TYP. MAX. UNIT V L R - - - - - 4.7 12.0 13.0 - - - BYPASS - 2.9 5.7 8.6 - - - 3D Stereo MAX 3.9 7.8 11.7 - - - 3D Mono - 3.5 7.0 10.5 - - - - - 5.8 6.0 6.2 f=1kHz T.H.D.=3% VIN - VIN L R BYPASS - 10.0 (2.51) 12.0 (3.98) - f=125Hz T.H.D.=3% VIN - VIN L R 3D Stereo MAX -1.5 (0.84) 0.5 (1.06) - f=125Hz T.H.D.=3% VIN - VIN L R 3D Stereo MIN - 11.5 (3.76) - f=125Hz T.H.D.=3% VIN VIN - L R 3D Stereo MAX - 0.45 (1.05) - f=125Hz T.H.D.=3% VIN VIN VIN VIN L R 3D Stereo MAX - 11.9 (3.94) - f=125Hz T.H.D.=3% VIN VIN -VIN -VIN L R 3D Stereo MAX -7.5 (0.42) -5.5 (0.53) - f=1kHz T.H.D.=3% VIN VIN L R 3D Mono - -4.6 (0.59) 0.0 (1.0) - f=1kHz L-R Output VIN VIN - L R 3D Stereo MAX -1.0 0.0 1.0 V+ Icc OUTPUT No Signal V+/2 mA V dBV (Vrms) dB NJM2198 ■ELECTRICAL CHARACTERISTICS (V+=12V,Ta=25°C, VIN=-10dBV(316mVrms) unless otherwise noted) TEST CONDITION PARAMETER Output Noise Total Harmonic Distortion Bypass Gain SRS Gain SYMBOL INPUT VNOISE T.H.D GBypass GSRS L R 0 0 L R BYPASS - - -110 (3.16) -95 (17.8) Rg=0Ω A-Weight 0 0 L R 3D Stereo MAX - -90 (31.6) -85 (56.2) Rg=0Ω A-Weight 0 0 L R 3D Mono - - -90 (31.6) -85 (56.2) f=1kHz VIN - VIN L R BYPASS - - 0.005 0.01 f=1kHz VIN - VIN L R 3D Stereo MAX - 0.1 1.0 f=1kHz VIN - VIN L R 3D Mono - - 0.1 1.0 f=1kHz VIN - VIN L R BYPASS - -1.0 0.0 1.0 f=125Hz VIN - VIN L R 3D Stereo MAX 9.4 11.4 13.4 f=125Hz VIN - VIN L R 3D Stereo MIN -1.5 0.5 2.5 f=125Hz VIN VIN - L R 3D Stereo MAX 6.8 8.8 10.8 VIN VIN L 3D Mono - 1.3 3.3 5.3 VIN VIN R 3D Mono - -6.9 -4.9 -2.9 VIN = High Level - - - - - 2.0 - V+ VIN = Low Level - f=1kHz VMODE MAX. Rg=0Ω A-Weight f=1kHz Mode Select Control Voltage TYP. MODE WIDTH VOLUME MIN. OUTPUT UNIT dB (µVrms) % dB dB V - - - - 0.0 - 0.7 ■MODE SWITCH MODE MODE1 BYPASS L 3D-Sound H MODE MODE2 3D Stereo L 3D Mono H -3- NJM2198 ■PIN CONFIGURATION 22 21 20 19 18 17 16 15 14 13 12 1 2 3 4 5 6 7 8 9 10 11 SDIP- 22 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 DMP- 24 VOL2 VOL1 MODE1 MODE2 13. MODE2 14. TP2 15.ROUT 16.LOUT 17.VOL2 18.VOL1 19.TP3 20.FIL3 21.FIL2 22.FIL1 23.RIN 24.LIN FIL3 1.TP1 2.FIL4 3.FIL5 4.FIL6 5.FIL7 6.FIL8 7.FIL9 8. VrefIN 9. Vref 10. V+ 11. GND 12. MODE1 FIL2 12.MODE2 13.ROUT 14.LOUT 15.VOL2 16.VOL1 17.TP 18.FIL3 19.FIL2 20.FIL1 21.RIN 22.LIN FIL1 ■BLOCK DIAGRAM (DMP-24) 1.FIL4 2.FIL5 3.FIL6 4.FIL7 5.FIL8 6.FIL9 7.VrefIN 8.Vref 9.V+ 10.GND 11.MODE1 22 21 20 17 18 12 13 BYPASS 24 16 LOUT 3D-MONO 50k LIN 3D-STEREO VREF BYPASS 23 15 ROUT 3D-MONO 50k RIN 3D-STEREO 50k VREF 50k 9 Vref VREF VREF 8 VrefIN V+ VREF -4- 3 4 5 6 7 10 11 FIL4 FIL5 FIL6 FIL7 FIL8 FIL9 V+ GND GND 2 NJM2198 ■TERMINAL DESCRIPTION PIN No. SYMBOL 1 TP1 FUNCTION EQUIVALENT CIRCUIT Test Pin VOLTAGE 0V V+ 50 V+ FIL4 Filter Input V+/2 50 2 V+ FIL5 Filter Input V+/2 1.96k 3 3.92k VREF V+ 4 FIL6 Filter Input V+/2 150 -5- NJM2198 ■TERMINAL DESCRIPTION PIN No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE V+ 5 FIL7 Filter Input V+/2 76k V+ FIL8 Filter Input V+/2 3.74k 6 73.6k VREF V+ 7 FIL9 Filter Input V+/2 400 50k V+ 8 VREFIN Reference Voltage Input V+/2 50k 400 -6- NJM2198 ■TERMINAL DESCRIPTION PIN No. SYMBOL FUNCTION EQUIVALENT CIRCUIT V+ 50 V+ VOLTAGE VREF Reference Voltage V+/2 10 VCC Power Supply V+ 11 GND GND 0V 50 9 V+ MODE1 Mode Control 0V 150 50k 12 VREF -7- NJM2198 ■TERMINAL DESCRIPTION PIN No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE V+ 13 MODE2 Mode Control V+/2 50k 150 VREF 14 TP2 Test Pin 0V V+ 50 V+ ROUT Rch Output V+/2 50 15 V+ 50 V+ LOUT Lch Output V+/2 50 16 -8- NJM2198 ■TERMINAL DESCRIPTION PIN No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE V+ 17 VOL2 WIDTH VR Input V+/2 150 V+ 50 V+ 18 VOL1 WIDTH VR Input V+/2 19 TP3 50 150 Test Pin 0V V+ 20 FIL3 Filter Input V+/2 3.01k -9- NJM2198 ■TERMINAL DESCRIPTION PIN No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE V+ 21 FIL2 Filter Input V+/2 1.5k V+ 50 V+ 22 FIL1 Filter Input V+/2 50 14.33k V+ 23 RIN Rch Input V+/2 50k 150 VREF V+ 24 LIN Lch Input V+/2 50k 150 VREF - 10 - NJM2198 17 16 15 14 13 12 VOL2 LOUT ROUT MODE2 C9 18 VOL1 + 10u 10k R2 10u 3D Stereo 10kB C10 L ch OUTPUT 10u C11 WIDTH VR Min Miax 0.47u C14 0.33u C17 + TP 19 + 3D Mono FIL3 0.01u C13 20 FIL2 0.033u 21 FIL1 C12 R ch INPUT 10u 22 RIN C15 L ch INPUT 10u C16 + LIN + R ch OUTPUT ■ APPLICATION CIRCUIT NJM2198 MODE1 10 11 + C8 + 100u 12V 1u C6 + 10u 0.1u C5 C4 C3 C2 0.1u + 10k GND 9 10u V+ 8 Bypass R1 Vref 7 C7 VrefIN 6 V+ FIL9 5 C18 FIL8 4 0.0047u FIL7 3 0.22u FIL6 2 0.01u FIL5 1 C1 FIL4 3D Sound SDIP- 22 Parts No. C1,C5 C2,C13 C3 C4 C6 C7 Value 0.1µF 0.01µF 0.22µF 0.047µF 1µF 100µF Tolerance ±5% ±5% ±5% ±5% ±20% — Parts No. C8,C9,C10,C11,C15,C16,C18 C12 C14 C17 R1,R2 Value 10µF 0.033µF 0.47µF 0.33µF 10k Tolerance ±20% ±5% ±5% ±5% ±5% - 11 - NJM2198 21 20 19 18 17 16 15 14 13 VOL1 VOL2 LOUT ROUT TP2 MODE2 C9 22 10u 10k R2 C10 10u L ch OUTPUT 10u 10kB C11 WIDTH VR Min Miax 0.47u C14 23 TP3 0.33u C17 24 FIL3 + FIL2 0.01u 3D Stereo + FIL1 C13 0.033u R ch INPUT 10u C12 + RIN C15 L ch INPUT 10u C16 + 3D Mono LIN + R ch OUTPUT ■ APPLICATION CIRCUIT NJM2198 V+ 10k + 10u 12 R1 11 + 12V 1u C6 + 10u 0.1u C5 C4 0.22u C3 C2 0.1u + 10 Bypass C8 9 MODE1 Vref 8 100u VrefIN 7 C7 FIL9 6 GND FIL8 5 V+ FIL7 4 C18 FIL6 3 0.0047u FIL5 2 0.01u FIL4 1 C1 TP1 3D Sound DMP- 24 Parts No. C1,C5 C2,C13 C3 C4 C6 C7 - 12 - Value 0.1µF 0.01µF 0.22µF 0.047µF 1µF 100µF Tolerance ±5% ±5% ±5% ±5% ±20% — Parts No. C8,C9,C10,C11,C15,C16,C18 C12 C14 C17 R1,R2 Value 10µF 0.033µF 0.47µF 0.33µF 10k Tolerance ±20% ±5% ±5% ±5% ±5% NJM2198 ■TYPICAL CHARACTERISTICS NJM2198 GAIN STRUCTURE a:BYPASS Mode b:3D-Stereo Mode c:3D-Stereo Mode Vin=-10dBV Lch → Vout=Lch Vin=-10dBV Lch → Vout=Lch Vin=-10dBV Lch → Vout=Rch 10 5 b 0 Gain [dBV] c -5 -10 a -15 -20 10 100 1k Frequency f [Hz] 10k 100k NJM2198 GAIN STRUCTURE 3D-MONO Mode a:Vin=-10dBV L+Rch → Vout=Lch b:Vin=-10dBV L+Rch → Vout=Rch 10 5 Gain [dBV] 0 b a -5 -10 -15 -20 10 100 1k 10k 100k Frequency f [Hz] [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. - 13 -