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NJM2195
PRELIMINARY
SRS WOW AUDIO PROCESSOR
sGENERAL DESCRIPTION The NJM2195 is a SRS WOW audio processor, based on the technology of SRS Labs, Inc. It includes SRS 3D Stereo regenerating 3D surround sound with stereo input, TruBass providing rich bass sound and FOCUS improving sound orientation. The NJM2195 is suitable for audio application such as TV, CD radio-cassette, Car Audio, speaker system for PC and others. sPACKAGE OUTLINE
NJM2195L
NJM2195GK1
sFEATURES qOperating Voltage 4.7 to 13V qWOW Function qPunch Control for TruBass effect qLF Elevation Control for FOCUS effect qWidth Control for SRS 3D Stereo effect qBypass Function (Through) qInternal Mode Switch qBipolar Technology qPackage Outline SDIP42, SOP40, QFP48
NJM2195FJ1
The WOW technology right incorporated in the NJM2195 are owned by SRS Labs, a U.S. Corporation and licensed to New Japan Radio Co., Ltd. Purchaser of NJM2195 must sign a license for use of the chip and display of the SRS Labs trademarks. Any products incorporating the NJM2195 must be sent to SRS Labs for review. WOW is protected under U.S. and foreign patents issued and/or pending. WOW, SRS and the symbol are trademarks of SRS Labs, Inc. in the United States and selected foreign countries. Neither the purchase of the NJM2195, 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-
NJM2195
sPIN FUNCTION (SDIP42) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. C3 C4 FILOUT FIL1 FIL2 FIL3 FIL4 FIL5 FIL6 FIL7 NC PCOUT PCIN C1 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. C2 SFIL1 SFIL2 SFIL3 SVOL2 SVOL1 GND V+ VREFIN VREF MODE3 MODE2 MODE1 TP1 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. BASSOUT OUTR OUTL NC TP2 FFR3 FFR2 FFR1 TP3 FFL3 FFL2 FFL1 INR INL
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
42 41 40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 24 23 22
sPIN FUNCTION (SOP40) 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. SFIL1 SFIL2 SFIL3 SVOL2 SVOL1 GND V+ VREFIN VREF MODE3 MODE2 MODE1 TP1 BASSOUT 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. OUTR OUTL TP2 FFR3 FFR2 FFR1 TP3 FFL3 FFL2 FFL1 INR INL
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
40 39 38 36 35 34 33 32 31 30 29 28 27 26 25 24 24 23 22 21
-2-
NJM2195
sPIN FUNCTION (QFP48)
36 37
25 24
48 1 12
13
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 SFIL1 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 TP1 BASSOUT OUTR OUTL TP2 FFR3
33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48.
FFR2 FFR1 TP3 NC NC FFL3 FFL2 FFL1 INR INL C3 C4 FILOUT FIL1 FIL2 NC
-3-
NJM2195
sBLOCK DIAGRAM (SOP40)
sBLOCK DIAGRAM (SDIP42)
-442 1
C3
41 2
INL INR
3
C3 C4 FILOUT
4
INL INR
40
1 39
40
2 38
C4 FFL1
FILOUT
FFL1
39
3
FOCUS
FIL1
L R 5
FOCUS
FIL1 FIL2
6
FFL2 FFL3
MODE1
FFL2
38
37
4 L 36
FIL2 TP3
H H L
FFL3
37
R
5
FIL3
L H
FIL3
7
TP3
L
35
MODE1
6
H
L
36
FIL4
8
FFR1 FFR2
9
FIL4 FIL5 FIL6
10
FFR1
35
34
7 33 32
FIL5 FFR3 TP2
11
FFR2
34
8
FIL6
FIL7 NC
12
FFR3
33
9 31 30
TruBass
TruBass
FIL7 OUTL OUTR
13
TP2
32
10
PCOUT
PCOUT PCIN
14
NC
H L
11 29 28
31
H
L
MODE2
MODE2
PCIN BASSOUT TP1
15
OUTL
30
12
C1
C1 C2
16
OUTR
29
13 27 26
C2 MODE1 MODE2 MODE3 VREF VREFIN V+
SFIL1 SFIL2 SFIL3 SVOL2 SVOL1 GND
BASSOUT
28
14 25
SFIL1
TP1
27
15
3D Stereo
MODE
SFIL2
24
MODE1
17 26
3D Stereo
16 23 22 21
MODE
SFIL3
MODE2
H L
17
18
25
MODE3
-1
H
L
18
MODE3
MODE3
SVOL2
19
24
SVOL1
VREF
20 23
-1
19
GND
VREFIN
21 22
20
V+
NJM2195
sBLOCK DIAGRAM (QFP48)
BASSOUT
MODE1
26
OUTR
OUTL
FFR1
FFR2
FFR3
TP3
TP2
TP1
NC
36
35
34
33
32
31
30
29
28
27
25
NC
NC 37 FFL3 38
24
NC MODE2 MODE3 VREF VREFIN V+ GND SVOL1 SVOL2 SFIL3 SFIL2 NC
FOCUS
FFL2 39 FFL1 40 INR 41 INL 42 C3 43
L+R
MODE
23
22
L
R
H L H L
21 + + + + + + + 19 MODE3
H
+
-1
20
MODE1
18
L
C4 44 FILOUT 45 FIL1 46
17 + - L-R MODE2 16
15
TruBass
FIL2 47 NC 48
1 2 3 4 5
H L
3D Stereo
14
13
6
7
8
9
10
11
12
PCOUT
PCIN
FIL3
FIL4
FIL5
FIL6
FIL7
SFIL1
NC
NC
C1
C2
-5-
NJM2195
sABSOLUTE MAXIMUM RATING (Ta=25C)
PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL + V PD Topr Tstg
+
RATING 15 (SDIP) 700 (SOP) 700 (QFP) 450 -40 to+85 -40 to +125
UNIT V mW C C
sELECTRICAL CHARACTERISTICS ( V =12V, Ta=25C, VIN=-20dBV (=0.1Vrms), Speaker Size :Medium)
TEST CONDITION PARAMETER
SYMBOL
INPUT L R VIN VIN VIN VIN -VIN -VIN VIN VIN VIN VIN -VIN -VIN 0
OUT PUT L R L R L R L R L R L R L R L R L R L R L R L R L R
MODE BYPASS WOW -
PUNCH VR
WIDTH VR
LF VR
MIN
TYP
MAX
UNIT
Operating Voltage Operating Current Reference Voltage Maximum Input Voltage
V+ ICC No Signal
-
-
-
-
4.7 8.7 8.7 5.8 10.0 (3.2) -
12.0 17.4 17.4 6.0 12.0 (4.0) -2.7 (0.73) 0.5 (1.1) -5.5 (0.53) -0.8 (0.91) -10.0 (0.32) -3.0 (0.71) -15.0 (0.18) -110 (3) -80 (100) -95 (18) -92 (25) -75 (180)
13.0 26.1
V
mA 26.1 6.2 V
VREF VIM
V+/2 f=1kHz THD=3% f=100Hz THD=3% f=125Hz THD=3% f=125Hz THD=3% f=10kHz THD=3% f=10kHz THD=3% f=100Hz THD=3% f=10kHz THD=3%
VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN 0
BYPASS
-
-
-
-
TruBass 3DSTEREO 3DSTEREO FOCUS
MAX
-
-
-
-
MAX
-
-
-
-
MAX
-
-
dBV (Vrms) -
-
-
MAX
-12.0 (0.25) -5.0 (0.56) -17.0 (0.14) -
WOW
MAX
MAX
MAX
-
WOW
MAX
MAX
MAX
-
WOW
MAX
MAX
MAX
-100 (10) dBV (Vrms)
Output Noise
VNO
Rg=0 A-Weighted Rg=0 A-Weighted Rg=0 A-Weighted Rg=0 A-Weighted Rg=0 A-Weighted
BYPASS
-
-
-
0
0
TruBass 3DSTEREO FOCUS
MAX
-
-
-
0
0
-
MAX
-
-
-
0
0
-
-
MAX
-
-69 (350)
0
0
WOW
MAX
MAX
MAX
-
-6-
NJM2195
sELECTRICAL CHARACTERISTICS ( V =12V, Ta=25C, VIN=-20dBV (=0.1Vrms), Speaker Size :Medium)
TEST CONDITION PARAMETER
SYMBOL
+
INPUT L R VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN
OUT PUT L R L R L R L R L R L R L R L R L R L R L R L R L R
MODE
PUNCH VR
WIDTH VR
LF VR
MIN
TYP
MAX
UNIT
Total Harmonic Distortion
THD f=1kHz
VIN VIN VIN VIIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN -
BYPASS
-
-
-
-
0.005
0.01
f=100Hz
TruBass 3DSTEREO FOCUS
MAX
-
-
-
0.1
-
f=1kHz
-
MAX
-
-
0.1
-
%
f=1kHz
-
-
MAX
-
0.1
-
f=1kHz BYPASS Gain GVBYP f=1kHz SRS Gain GSRS f=100Hz
WOW
MAX
MAX
MAX
-
0.1
1.0
BYPASS
-
-
-
-1.0
0.0
1.0
dB
TruBass
MAX
-
-
12.8
14.8
16.8
f=100Hz
TruBass 3DSTEREO 3DSTEREO FOCUS
MIN
-
-
-2.3
1.7
5.7
f=125Hz
-
MAX
-
9.4
11.4
13.4
f=125Hz
-
MIN
-
-1.5
0.5
2.5
dB
f=10kHz
-
-
MAX
10.7
12.7
14.7
f=100Hz f=10kHz
VIN=-35dBV
WOW
MAX
MAX
MAX
13.8
15.8
17.8
WOW
MAX
MAX
MAX
19.7 2.0 0.0
21.7 -
23.7 V+ V 0.7
MODE Select Control Voltage
VMODE
VIN=High Level VIN=Low Level
sMODE SELECT FUNCTION
MODE BYPASS TruBass 3D-STEREO FOCUS WOW MODE1 L L L H H MODE2 L H L L H MODE3 L L H L H
-7-
NJM2195
sPIN DESCRIPTION No.
SDIP42 SOP40 QFP48
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
NOTE
11 32
-
1 12 13 24 25 36 37 48
NC NC NC NC NC NC NC NC
Non Connect Non Connect Non Connect Non Connect Non Connect Non Connect Non Connect Non Connect
-
V+
V+
6 7 9 12 20 34 38
6 7 9 11 19 32 36
2 3 5 7 17 32 38
FIL3 FIL4 FIL6 PCOUT SVOL1 FFR3 FFL3
Filter Filter Filter PUNCH Control VR WIDTH Control VR Filter Filter
50
V+/2
50
V+ V+ V+
8 10
8 10
4 6
FIL5 FIL7
Filter Filter
V+/2
150
V+
V+
13 1
12 1
8 43
PCIN C3
PUNCH Control VR Filter
V+/2
-8-
NJM2195
sPIN DESCRIPTION No.
SDIP42 SOP40 QFP48
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
NOTE
V+
V+
V+
14
13
9
C1
Filter
10k
0V
V+
V+
V+
15
14
10
C2
Filter
10k
50
0V
V+
V+
16 17 18
15 16 17
11 14 15
SFIL1 SFIL2 SFIL3
Filter Filter Filter
V+/2
V+
V+
19 2 5
18 2 5
16 44 47
SVOL2 C4 FIL2
WIDTH Control VR Filter Filter
V+/2
-9-
NJM2195
sPIN DESCRIPTION No.
SDIP42 SOP40 QFP48
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
NOTE
21
20
18
GND
GND
0V
22
21
19
V+
Power Supply
V+
V+
V+
V+
V+
V+
50k
23
22
20
VREFIN
Reference Voltage Input
50k
V+/2
V+
24 29 30 31 36 40 3
23 28 29 30 34 38 3
21 28 29 30 34 40 45
VREF BASSOUT OUTR OUTL FFR1 FFL1 FILOUT
Reference Voltage Output TruBass Output Rch Output Lch Output Filter Filter Filter
50
V+/2
50
V+
V+
V+
- 10 -
150k
25 26 27
24 25 26
22 23 26
MODE3 MODE2 MODE1
Mode3 SW Mode2 SW Mode1 SW
150
0V
NJM2195
sPIN DESCRIPTION No.
SDIP42 SOP40 QFP48
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
V+ V+ V+
NOTE
28 35 39
27 33 37
27 33 39
TP1 FFR2 FFL2
Test Pin Filter Filter
150
V+/2
V+
33 37
31 35
31 35
TP2 TP3
Test Pin Test Pin
-
V+
V+
V+
41 42
39 40
41 42
INR INL
Rch Input Lch Input
150 50k
V+/2
VREF
V+
V+
V+
VREF
50
4
4
46
FIL1
Filter
50
V+/2
- 11 -
NJM2195
sAPPLICATION CIRCUIT (SDIP42)
Bass OUT
Rch OUT
Lch OUT
MODE1
MODE2
Rch IN
Lch IN
10k 10k 0.1 2.2k
MAX
10k 10k 0.1 2.2k
MAX
10kB
MIN
10kB
MIN
MODE3 VREF 10k 10k
10k
10
V+(12V) 22 21
VREF TP3
VREF 10 10 10 10 TP1 10 TP2 10 10 NC
10
42
41
10
100k 100k 40 39 38
100k 100k 36 35 34
37
33
32
31
30
29
28
27
26
25
24
23
NJM2195L
1 0.1
2 0.01
3
4
5 0.1
6 0.1
7
8
9
10
11 NC
12
MAX
13
14 1
15 10
16 0.033
17 0.01
18
19
20
R3 0.1 0.1
R6 0.1 0.1
10kB
MIN
220p
0.47
VREF
0.33
MIN
10kB
MAX
R1
R2
R4
R5
PUNCH VR
WIDTH VR
VREF
VREF
SPEAKER SIZE LARGE R1 R2 R3 R4 R5 R6 56.2k 13k 158k 37.4k 8.87k 107k MEDIUM 21k 3.09k 42k 37.4k 8.87k 107k SMALL
(TruBass mode only)
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
- 12 -
100
NJM2195
sAPPLICATION CIRCUIT (SOP40)
Bass OUT
Rch OUT
Lch OUT
MODE1
MODE2
Rch IN
Lch IN
10k 10k 0.1 2.2k
MAX
10k 10k 0.1 2.2k
MAX
10kB
MIN
10kB
MIN
MODE3 VREF 10k 10k
10k
10
V+(12V) 21 20
VREF TP3
VREF 10 10 10 10 TP1 10 TP2 10 10
10
40
39
10
100k 100k 38 37 36
100k 100k 34 33 32
35
31
30
29
28
27
26
25
24
23
22
NJM2195GK1
1 0.1
2 0.01
3
4
5 0.1
6 0.1
7
8
9
10
11
MAX
12
13 1
14 10
15 0.033
16 0.01
17
18
19
R3 0.1 0.1
R6 0.1 0.1
10kB
MIN
220p
0.47
VREF
0.33
MIN
10kB
MAX
R1
R2
R4
R5
PUNCH VR
WIDTH VR
VREF
VREF
SPEAKER SIZE LARGE R1 R2 R3 R4 R5 R6 56.2k 13k 158k 37.4k 8.87k 107k MEDIUM 21k 3.09k 42k 37.4k 8.87k 107k SMALL
(TruBass mode only)
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
100
- 13 -
NJM2195
sAPPLICATION CIRCUIT (QFP48)
10kB 10k 0.1 10k 10k 0.1 2.2k VREF NC 37 38 39 40 Rch IN 10 Lch IN 10 43 0.1 0.01 45 46 47 0.1 NC 48 1 NC 2 0.1 3 4 5 6 44 42 41
MAX MIN
MODE1 10k 27 TP1 26 10 NC 25 24 23 22 21 20 10 V+(12V)
MAX
10k
MAX
2.2k VREF 10 TP2 10 29 28 10
10kB
MIN
36
35
TP3
NC
100k 100k 34 33 32
31
30
Bass OUT
Rch OUT
Lch OUT
100k 100k
NC MODE2 10 10 10k MODE3 10k VREF 10 220p 100 10kB
MIN
19
NJM2195FJ1
18 17 16 15
WIDTH VR 0.47 14 0.01 13 7
MAX
0.33
NC
8
9 1
10 10
11 0.033
12 NC
R3 0.1 0.1
R6 0.1 0.1
VREF
10kB
MIN
VREF
PUNCH VR R1 R2 R4 R5
VREF
SPEAKER SIZE LARGE R1 R2 R3 R4 R5 R6 56.2k 13k 158k 37.4k 8.87k 107k MEDIUM 21k 3.09k 42k 37.4k 8.87k 107k SMALL
(TruBass mode only)
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
- 14 -
NJM2195
sTYPICAL CHARACTERISTICS
Operating Current vs. Operating Voltage
V+=1 to 15V, Ta=25oC 20
20
Maximum Input Voltage vs. Operating Voltage (BYPASS)
Vin=Lch, Vout=Lch, f=1kHz, RL=4.7k Rg=25 , Ta=25oC
15
15
Maximum Input Voltage [dBV]
Operating Current [mA]
10
10 WOW
5
0
BYPASS 5
-5
0 0 2 4 6 8 10 12 14
-10 0 4 8 12 16
Operating Voltage [V]
Operating Voltage [V]
Maximum Input Voltage vs. Operating Voltage (WOW)
Vin=Lch, Vout=Lch, f=10kHz, RL=4.7k 0 LFVR=MAX, Rg=25 Ta=25oC ,
Total Harmonic Distortion vs. Input Voltage (BYPASS)
V+=12V, Vin=Lch, Vout=Lch, f=1kHz, RL=4.7k Rg=25 , BW=10-80kHz 10
-5
1
Maximum Input Voltage [dBV]
-10
-15
THD+N [%]
0 4 8 12 16
0.1
0.01
-20
-25
0.001
-30
0.0001 -40 -30 -20 -10 0 10 20
Operating Voltage [V]
Input Voltage [dBV]
Total Harmonic Distortion (TruBass)
V+=12V, Vin=L+Rch, Vout=Lch, f=100Hz, RL=4.7k Rg=25 , BW=10-80kHz 10
Total Harmonic Distotion vs. Input Voltage (3D Stereo)
V+=12V, Vin=Lch, Vout=Lch, f=1kHz, RL=4.7k Rg=25 , BW=10-80kHz
10
1
1
THD+N [%]
THD+N [%]
0.1 0.01 -40 -30 -20 -10 0 10
0.1
0.01
0.001 -40 -30 -20 -10 0 10 20
Input Voltage [dBV]
Input Voltage [dBV]
- 15 -
NJM2195
sTYPICAL CHARACTERISTICS
Total Harmonic Distortion vs. Input Voltage (WOW)
V+=12V, Vin=Lch, Vout=Lch, f=1kHz, RL=4.7k Rg=25 , BW=10-80kHz 10
3
Frequency Responce (BYPASS)
V+=12V, Vin=-10dBV Lch, Vout=Lch, RL=4.7k Rg=25
2
1
1
THD+N [%]
Gain [dB]
0
0.1
-1
-2
0.01 -40 -30 -20 -10 0 10
-3 10 100 1000 10
4
10
5
Input Voltage [dBV]
Frequency [Hz]
Frequency Responce (TruBass)
V+=12V, Vin=-20dBV L+Rch, Vout=Lch, RL=4.7k VR=ALLMAX, Medium Mode, Rg=25 20 20
Freqeuncy Responce (3D Stereo)
V+=12V, Vin=-20dBV Lch, Vout=L/Rch, RL=4.7k VR=ALLMAX, Rg=25
15
15 Lch Out
10
10
Rch Out
Gain [dB]
5
Gain [dB]
5
0
0
-5
-5
-10 10 100 1000 10
4
10
5
-10 10 100 1000 10
4
10
5
Frequency [Hz]
Freqeuncy [Hz]
Frequency Responce (FOCUS)
V+=12V, Vin=-20dBV Lch, Vout=Lch, RL=4.7k Rg=25 20
Frequency Responce (WOW)
V+=12V, Vin=-20dBV Lch, Vout=L/Rch, RL=4.7k VR=ALLMAX, Rg=25 30
25
15
20
Gain [dB]
10
15
Gain [dB]
Lch Out 10 Rch Out
5
5
0
0
-5
-5 10 100 1000 10
4
10
5
-10 10 100 1000 10
4
10
5
Frequency [Hz]
Frequency [Hz]
- 16 -
NJM2195
[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.
- 17 -

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