NJM2700 SRS WOW AUDIO PROCESSOR ■GENERAL DESCRIPTION The NJM2700 is a SRS WOW audio processor, based on the technology of SRS Labs, Inc. The NJM2700 reproduces wide and clear sound. In addition, it provides rich bass sound. The NJM2700 is suitable for speaker system for personal computer, TV, CD radio-cassette, portable audio equipment, and others. ■PACKAGE OUTLINE NJM2700FJ1 NJM2700G ■FEATURES ●Operating Voltage 4.7 to 13V ●WOW Function ●Punch Control for TruBass effect ●Width Control for SRS 3D Stereo effect ●Bypass Function (Through) ●Internal Mode Switch ●Bipolar Technology ●Package Outline SOP40, QFP48-J1 The WOW technology right incorporated in the NJM2700 are owned by SRS Labs, a U.S. Corporation and licensed to New Japan Radio Co., Ltd. WOW is protected under U.S. and foreign patents issued and/or pending. WOW and the , are trademarks of SRS Labs, Inc. in the United States and selected foreign countries. Neither the purchase of the NJM2700, 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 NJM2700 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- NJM2700 ■PIN FUNCTION (SOP40) 1 40 2 39 3 38 4 36 5 35 6 34 7 33 8 32 9 31 10 30 11 29 12 28 13 27 14 26 15 25 16 24 17 24 18 23 19 22 20 21 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. C3 C4 FILOUT FIL1 FIL2 FIL3 FIL4 FIL5 FIL6 FIL7 PCOUT PCIN C1 C2 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. SEL1 SFIL2 SFIL3 SVOL2 SVOL1 GND V+ VREFIN VREF MODE3 MODE2 MODE2 TP2 BASSOUT 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. OUTR OUTL FFR4 FFR3 FFR2 FFR1 FFL4 FFL3 FFL2 FFL1 INR INL ■PIN FUNCTION (QFP48) 36 25 37 24 48 13 1 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. NC FIL3 FIL4 FIL5 FIL6 FIL7 PCOUT PCIN C1 C2 SFIL2 NC NC SFIL2 SFIL3 SVOL2 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31 32 SVOL1 GND V+ VREFIN VREF MODE3 MODE2 NC NC MODE1 TP2 BASSOUT OUTR OUTL FFR4 FFR3 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. FFR2 FFR1 FFL4 NC NC FFL3 FFL2 FFL1 INR INL C3 C4 FILOUT FIL1 FIL2 NC 12 -2- NJM2700 INL INR FFL1 FFL2 FFL3 FFL4 FFR1 FFR2 FFR3 FFR4 OUTL OUTR BASSOUT TP2 MODE1 MODE2 MODE3 VREF VREFIN V+ ■BLOCK DIAGRAM (SOP40) 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 MODE L L H MODE2 FOCUS MODE3 H TruBass H 3D Stereo L L -1 H R L FFL3 38 39 FFL1 40 FFR3 FFR4 OUTL OUTR BASSOUT TP2 MODE1 NC 34 33 32 31 30 29 28 27 26 25 MODE L R 41 + 42 -1 + + + + 43 20 24 NC 23 MODE2 22 MODE3 21 VREF 20 VREFIN 19 V+ 18 GND 17 SVOL1 16 SVOL2 15 SFIL3 14 SFIL2 13 NC + L MODE1 C3 + L H INL SVOL2 FFR2 SFIL3 FFR1 35 H INR 19 36 FOCUS FFL2 18 FFL4 17 GND 37 16 SVOL1 NC 15 NC ■BLOCK DIAGRAM (QFP48) 14 SFIL2 13 SFIL1 12 C2 11 C1 FIL6 10 PCIN 9 PCOUT 8 FIL7 7 FIL5 6 FIL4 5 FIL3 4 FIL2 C4 3 FIL1 2 FILOUT 1 C3 MODE1 MODE3 H + L L+R C4 44 FILOUT 45 FIL1 46 + L-R MODE2 1 2 3 4 5 6 7 8 9 10 11 12 FIL4 FIL5 FIL6 FIL7 PCOUT PCIN C1 C2 SFIL1 NC 48 FIL3 NC L NC 47 3D Stereo H TruBass FIL2 − -3- NJM2700 ■ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER Supply Voltage SYMBOL + V Power Dissipation PD Operating Temperature Range Storage Temperature Range Topr Tstg RATING 15 (SOP40) 700 (QFP48) 450 -40 to+85 -40 to +125 UNIT V mW °C °C + ■ELECTRICAL CHARACTERISTICS ( V =12V, Ta=25°C, VIN=-20dBV (=0.1Vrms), Speaker Size :Medium) TEST CONDITION PARAMETER Operating Voltage Operating Current Reference Voltage Maximum Input Voltage Output Noise SYMBOL V INPUT VREF VIM VNO MODE PUNCH WIDTH VR VR MIN TYP MAX UNIT V L R - - - - - - 4.7 12.0 13.0 - - - BYPASS - - 8.7 17.4 26.1 - - - WOW - - 8.7 17.4 26.1 - - - - 5.8 6.0 6.2 f=1kHz THD=3% VIN - VIN L R BYPASS - - 10.0 (3.2) 12.0 (4.0) - f=100Hz THD=3% VIN VIN VIN VIN L R TruBass MAX - - -2.7 (0.73) - f=125Hz THD=3% VIN - VIN L R 3DSTEREO - MAX - 0.5 (1.1) - f=125Hz THD=3% VIN VIN -VIN -VIN L R 3DSTEREO - MAX - -5.5 (0.53) - f=10kHz THD=3% VIN - VIN L R WOW MAX MAX -5.8 (0.51) -3.8 (0.65) - f=100Hz THD=3% VIN VIN VIN VIN L R WOW MAX MAX -5.0 (0.56) -3.0 (0.71) - f=10kHz THD=3% VIN VIN -VIN -VIN L R WOW MAX MAX -10.9 (0.29) -8.9 (0.36) - Rg=0Ω A-Weighted 0 0 L R BYPASS - - - -110 (3) -100 (10) Rg=0Ω A-Weighted 0 0 L R TruBass MAX - - -80 (100) - Rg=0Ω A-Weighted 0 0 L R 3DSTEREO - MAX - -95 (18) - Rg=0Ω A-Weighted 0 0 L R WOW MAX MAX - -80 (100) -75 (180) + ICC OUTPUT No Signal + V /2 mA V dBV (Vrms) dBV (µVrms) -4- NJM2700 + ■ELECTRICAL CHARACTERISTICS ( V =12V, Ta=25°C, VIN=-20dBV (=0.1Vrms), Speaker Size :Medium) TEST CONDITION PARAMETER Total Harmonic Distortion SYMBOL INPUT OUTPUT MODE PUNCH WIDTH VR VR MIN TYP MAX L R f=1kHz VIN - VIN L R BYPASS - - - 0.005 0.01 f=100Hz VIN VIN VIN VIN L R TruBass MAX - - 0.1 - f=1kHz VIIN - VIN L R 3DSTEREO - MAX - 0.1 - f=1kHz VIN - VIN L R WOW MAX MAX - 0.1 1.0 f=1kHz VIN - VIN L R BYPASS - - -1.0 0.0 1.0 f=100Hz VIN VIN VIN VIN L R TruBass MAX - 12.8 14.8 16.8 f=100Hz VIN VIN VIN VIN L R TruBass MIN - -2.3 1.7 5.7 f=125Hz VIN - VIN L R 3DSTEREO - MAX 9.4 11.4 13.4 f=125Hz VIN - VIN L R 3DSTEREO - MIN -1.5 0.5 2.5 f=100Hz VIN - VIN L R WOW MAX MAX 13.8 15.8 17.8 f=10kHz VIN - VIN L R WOW MAX MAX 13.9 15.9 17.9 VIN=High Level 2.0 - V VIN=Low Level 0.0 - 0.7 THD UNIT % BYPASS Gain SRS Gain GVBYP GSRS dB dB MODE Select Control Voltage VMODE + V ■MODE SELECT FUNCTION MODE BYPASS TruBass 3D-STEREO WOW MODE1 L L L H MODE2 L H L H MODE3 L L H H -5- NJM2700 ■PIN DESCRIPTION No. SYMBOL SOP40 QFP48 FUNCTION EQUIVALENT CIRCUIT V+ 1 12 32 36 43 8 32 34 C3 PCIN FFR3 FFR1 V+ Filter PUNCH Control VR Filter Filter V+/2 V+ 2 5 18 44 47 16 C4 FIL2 SVOL2 V+/2 Filter Reference Voltage Output TruBass Output Rch Output Lch Output Filter Filter V+ 50 FILOUT VREF BASSOUT OUTR OUTL FFR1 FFL1 V+ V+/2 50 45 21 28 29 30 34 40 V+ Filter Filter WIDTH Control VR V+ 3 23 28 29 30 34 38 VOLTAGE V+ V+ 50 V+ 46 FIL1 Filter V+/2 50 4 VREF -6- NJM2700 ■PIN DESCRIPTION No. SYMBOL SOP40 QFP48 FUNCTION EQUIVALENT CIRCUIT V+ Filter Filter Filter PUNCH Control VR WIDTH Control VR Filter Filter 50 FIL3 FIL4 FIL5 PCOUT SVOL1 FFR4 FFL4 V+/2 50 2 3 5 7 17 31 35 V+ V+ 8 10 4 6 FIL5 FIL7 Filter Filter 27 - 27 - TP1 TP2 TP3 Test Pin Test Pin Test Pin 9 C1 V+ V+/2 150 - V+ 13 V+ V+ V+ Filter 0V 10k 6 7 9 11 19 31 35 VOLTAGE -7- NJM2700 ■PIN DESCRIPTION No. SYMBOL SOP40 QFP48 FUNCTION EQUIVALENT CIRCUIT V+ V+ 50 V+ VOLTAGE 10 C2 Filter 0V 10k 14 V+ V+ 15 16 17 11 14 15 SFIL1 SFIL2 SFIL3 Filter Filter Filter V+/2 20 18 GND GND 0V 21 19 V+ Power Supply V+ -8- NJM2700 ■PIN DESCRIPTION No. SYMBOL SOP40 QFP48 FUNCTION EQUIVALENT CIRCUIT V+ V+ 50k V+ VOLTAGE 20 VREFIN Reference Voltage Input V+/2 50k 22 V+ 22 23 26 MODE3 MODE2 MODE1 Mode3 SW Mode2 SW Mode1 SW V+ 0V 150 150k 24 25 26 V+ V+ 33 37 33 39 FFR2 FFL2 V+ Filter Filter V+/2 VREF V+ 41 42 INR INL Rch Input Lch Input V+ V+/2 150 50k 39 40 V+ VREF -9- NJM2700 MODE3 MODE2 MODE1 Rch OUT Lch OUT Rch IN Lch IN Bass OUT ■APPLICATION CIRCUIT (SOP40) 40 39 38 37 36 35 34 33 32 31 30 29 100 V+(12V) 10u 10u 10u 10k 10u 10k 10u NC 0.1u 10u 0.1u 10u 0.1u 10u 0.1u 10u 10u 10k VREF 28 27 26 25 24 23 22 21 13 14 15 16 17 18 19 20 11 12 MAX VREF 220 MIN VREF 0.33 0.1u 10k R5 0.1u R6 R4 R1 0.1u R3 0.01 10 0.47 9 0.033 8 10u 7 0.1u 6 0.1u 5 R2 4 0.1u 3 0.01 2 0.1u 1 1u NJM2700 MIN 10k MAX WIDTH VR PUNCH VR VREF SPEAKER SIZE LARGE MEDIUM SMALL (TruBass mode only) R1 R2 R3 R4 R5 R6 56.2k 13k 158k 37.4k 8.87k 107k 21k 3.09k 42k 37.4k 8.87k 107k 21k 3.09k 42k 22.1k 2.32k 32k The standard setting of speaker size is as follows.(Reference) • Large Mode : fo ≤ 80Hz • Medium Mode : 80Hz < fo ≤ 150Hz • Small Mode : 150Hz < fo ≤ 250Hz -10- NJM2700 36 NC 35 34 33 32 31 30 29 MODE1 28 10u NC NC 0.1u 10u 0.1u 10u 0.1u 10u NC 10k Lch OUT Rch OUT Bass OUT ■APPLICATION CIRCUIT (QFP48) 27 26 25 37 24 38 23 NC MODE2 10k 39 22 0.1u 21 41 20 42 19 10u MODE3 10k VREF 10u 40 10u Lch IN 10u NJM2700 10u 43 V+(12V) 10u 100u Rch IN 18 0.1u 17 45 16 46 15 47 14 48 13 MAX 220p 44 0.01u 10kB MIN WIDTH VR 0.47u 0.1u 0.01u 6 7 8 9 10 1u MAX R6 10kB 0.1u 0.1u 0.1u R3 11 0.33u NC 12 NC 5 0.033u 4 10u 3 0.1u 2 0.1u 1 NC MIN VREF VREF R5 R4 R2 PUNCH VR R1 NC VREF SPEAKER SIZE LARGE MEDIUM SMALL (TruBass mode only) R1 R2 R3 R4 R5 R6 56.2k 13k 158k 37.4k 8.87k 107k 21k 3.09k 42k 37.4k 8.87k 107k 21k 3.09k 42k 22.1k 2.32k 32k The standard setting of speaker size is as follows.(Reference) • Large Mode : fo ≤ 80Hz • Medium Mode : 80Hz < fo ≤ 150Hz • Small Mode : 150Hz < fo ≤ 250Hz -11- NJM2700 MODE3 MODE2 MODE1 Rch OUT Lch OUT Rch IN Lch IN Bass OUT ■APPLICATION CIRCUIT 2 (SOP40) 40 39 38 37 36 35 34 33 32 31 30 29 100u V+(12V) 10u 10u 10u 10k 10u 10k 10u NC 0.1u 10u 0.1u 10u 0.1u 10u 0.1u 10u 10u 10k VREF 28 27 26 25 24 23 22 21 13 14 15 16 17 18 19 20 10 11 12 MAX 1u 82k 10kB C8 C6 C5 130k 40Hz Setting 60Hz Setting 100Hz Setting 150Hz Setting 200Hz Setting 250Hz Setting 300Hz Setting 400Hz Setting 6.2k 36k 9.1k 47k VREF VREF 220p MIN 0.33u 9 0.01u 8 0.47u 7 0.033u 6 C7 5 C4 4 C3 3 C2 2 C1 1 10u NJM2700 PUNCH VR MIN 10kB MAX WIDTH VR VREF C1 0.22 0.15 0.1 0.068 0.047 0.039 0.033 0.022 C2 0.022 0.015 0.01 0.0068 0.0047 0.0039 0.0033 0.0022 C3 to C8 0.12 0.082 0.047 0.033 0.027 0.022 0.018 0.012 Unit: µF •Speaker Size Setting Choose speaker size in accordance with fo of the speaker. (EX.) In the case of fo= 250Hz: 250Hz Setting. Decide it after you confirm effect with the actual application. -12- NJM2700 36 NC 35 34 33 32 31 30 29 MODE1 28 10u NC NC 0.1u 10u 0.1u 10u 0.1u 10u NC 10k Lch OUT Rch OUT Bass OUT ■APPLICATION CIRCUIT 2 (QFP48) 27 26 25 37 24 38 23 NC MODE2 10k 39 22 10u 0.1u MODE3 10k 21 41 20 42 19 10u VREF 10u 40 Lch IN 10u NJM2700 10u 43 V+(12V) 10u 100u Rch IN 18 C1 17 45 16 MAX 220p 44 C2 10kB MIN WIDTH VR 46 15 47 14 48 13 0.47u 0.01u C3 5 6 7 8 9 10 MAX 1u 10kB 12 MIN C8 C7 82k C6 C5 130k 11 0.33u NC NC 4 0.033u 3 10u 2 C4 1 NC VREF 40Hz Setting 60Hz Setting 100Hz Setting 150Hz Setting 200Hz Setting 250Hz Setting 300Hz Setting 400Hz Setting PUNCH VR 6.2k 36k 9.1k VREF 47k NC VREF C1 0.22 0.15 0.1 0.068 0.047 0.039 0.033 0.022 C2 0.022 0.015 0.01 0.0068 0.0047 0.0039 0.0033 0.0022 C3 to C8 0.12 0.082 0.047 0.033 0.027 0.022 0.018 0.012 Unit: µF •Speaker Size Setting Choose speaker size in accordance with fo of the speaker. (EX.) In the case of fo= 250Hz: 250Hz Setting. Decide it after you confirm effect with the actual application. -13- NJM2700 ■TYPICAL CHARACTERISTICS NJM2700 Gain Structure NJM2700 Gain Structure BYPASS Mode Conditions ：Vin=-12.2dBV(245mVrms),V+=12V TruBass Mode Conditions ：Vin=-12.2dBV(245mVrms) Lch,Vout=Lch,V+=12V Speaker Size:Large 10 10 5 a, b 0 Gain(dB) 15 Gain(dB) 15 a 5 0 b -5 -5 -10 -10 20 50 100 200 500 1k 2k 5k 10k 20k 20 50 100 200 a: Lin – Lout b: Lin – Rout 2k 5k 10k 20k a: PUNCH VR MAX b: PUNCH VR MIN NJM2700 Gain Structure NJM2700 Gain Structure TruBass Mode Conditions ：Vin=-12.2dBV(245mVrms) Lch,Vout=Lch,V+=12V Speaker Size:Medium TruBass Mode Conditions ：Vin=-12.2dBV(245mVrms) Lch,Vout=LchV+=12V Speaker Size:Small 15 a 10 a 10 5 Gain(dB) Gain(dB) 1k Frequency(Hz) Frequency(Hz) 15 500 0 5 0 b b -5 -5 -10 -10 20 50 100 200 500 1k 2k 5k 10k 20k 20 50 100 200 Frequency(Hz) a: PUNCH VR MAX b: PUNCH VR MIN 500 1k 2k 5k 10k 20k Frequency(Hz) a: PUNCH VR MAX b: PUNCH VR MIN -14- NJM2700 ■TYPICAL CHARACTERISTICS 20 NJM2700 Gain Structure NJM2700 Gain Structure WOW Mode Conditions ：Vin=-12.2dBV(245mVrms) Lch,Vout=Lch,V+=12V Speaker Size:Large WOW Mode Conditions ：Vin=-12.2dBV(245mVrms) Lch,Vout=Lch,V+=12V Speaker Size:Medium a 15 10 c b 5 d 0 a 15 Gain(dB) Gain(dB) 20 c 10 b 5 0 -5 d -5 20 50 100 200 500 1k 2k 5k 10k 20k 20 50 100 200 Frequency(Hz) a: PUNCH VR MAX, b: PUNCH VR MAX, c: PUNCH VR MIN, d: PUNCH VR MIN, 500 1k 2k 5k 10k 20k Frequency(Hz) WIDTH VR MAX WIDTH VR MIN WIDTH VR MAX WIDTH VR MIN a: PUNCH VR MAX, b: PUNCH VR MAX, c: PUNCH VR MIN, d: PUNCH VR MIN, WIDTH VR MAX WIDTH VR MIN WIDTH VR MAX WIDTH VR MIN NJM2700 Gain Structure 3D Stereo Mode Conditions ：Vin=-12.2dBV(245mVrm s),V+=12V WIDTH VR:MAX 20 Gain(dB) 15 a 10 5 b 0 -5 20 50 100 200 500 1k 2k 5k 10k 20k Frequency(Hz) a: Lin – Lout b: Lin – Rout [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. -15-