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NJM2198
PRELIMINARY
SRS 3D SURROUND AUDIO PROCESSOR
sGENERAL 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. sPACKAGE OUTLINE
NJM2198L sFEATURES q Operating Voltage q Low Supply Current q Low Output Noise q BYPASS Gain q BYPASS FUNCTION q WIDTH control q Internal Mode Control Switch q Bipolar Technology q Package Outline
(4.7 to 13V) (7.8mA typ. at 3D Stereo mode) (32Vrms typ. at 3D Stereo mode) (0dB typ.) (Through) (2bit) SDIP22,DMP24
NJM2198M
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
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NJM2198
s ABSOLUTE MAXIMUM RATING (Ta=25C)
PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL V+ PD Topr Tstg RATINGS 15 (SDIP22) (SDMP24) 700 700 UNIT V mW C C
-40 to +85 -40 to +125
sELECTRICAL CHARACTERISTICS (V+=12V,Ta=25C, VIN=-10dBV(316mVrms) unless otherwise noted)
TEST CONDITION PARAMETER SYMBOL INPUT L Operating Voltage V+ Operating Current Icc No Signal Reference Voltage VREF V+/2 f=1kHz T.H.D.=3% f=125Hz T.H.D.=3% f=125Hz T.H.D.=3% Maximum Input Voltage VINMAX f=125Hz T.H.D.=3% f=125Hz T.H.D.=3% f=125Hz T.H.D.=3% f=1kHz T.H.D.=3% Channel Balance CHBAL f=1kHz L-R Output VIN VIN VIN VIN VIN VIN VIN VIN VIN VIN R VIN VIN VIN VIN VIN VIN -VIN -VIN VIN VIN OUTPUT L R L R L R L R L R L R L R L R MODE BYPASS 3D Stereo 3D Mono BYPASS 3D Stereo 3D Stereo 3D Stereo 3D Stereo 3D Stereo 3D Mono 3D Stereo WIDTH VOLUME MAX MAX MIN MAX MAX MAX MAX MIN. TYP. MAX. UNIT
4.7 2.9 3.9 3.5 5.8 10.0 (2.51) -1.5 (0.84) -7.5 (0.42) -4.6 (0.59) -1.0
12.0 5.7 7.8 7.0 6.0 12.0 (3.98) 0.5 (1.06) 11.5 (3.76) 0.45 (1.05) 11.9 (3.94) -5.5 (0.53) 0.0 (1.0) 0.0
13.0 8.6 11.7 10.5 6.2 1.0
V
mA
V
dBV (Vrms)
dB
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NJM2198
sELECTRICAL CHARACTERISTICS (V+=12V,Ta=25C, VIN=-10dBV(316mVrms) unless otherwise noted)
TEST CONDITION PARAMETER SYMBOL Rg=0 A-Weight Output Noise VNOISE Rg=0 A-Weight Rg=0 A-Weight f=1kHz Total Harmonic Distortion f=1kHz f=1kHz f=1kHz INPUT L 0 0 0 VIN VIN VIN VIN VIN VIN VIN VIN VIN R 0 0 0 VIN VIN VIN VIN VIN VIN VIN VIN VIN OUTPUT L R L R L R L R L R L R L R L R L R L R L R MODE BYPASS 3D Stereo 3D Mono BYPASS 3D Stereo 3D Mono BYPASS 3D Stereo 3D Stereo 3D Stereo 3D Mono 3D Mono WIDTH VOLUME MAX MAX MAX MIN MAX MIN. TYP. -110 (3.16) -90 (31.6) -90 (31.6) 0.005 0.1 0.1 0.0 11.4 0.5 8.8 3.3 -4.9 MAX. -95 (17.8) -85 (56.2) -85 (56.2) 0.01 1.0 1.0 1.0 13.4 2.5 10.8 5.3 -2.9 V+ V 0.0 0.7 dB dB % dB
(Vrms)
UNIT
-1.0 9.4 -1.5 6.8 1.3 -6.9 2.0
T.H.D
Bypass Gain
GBypass
f=125Hz f=125Hz SRS Gain GSRS f=125Hz f=1kHz f=1kHz Mode Select Control Voltage VIN = High Level VIN = Low Level
-
-
VMODE
sMODE SWITCH
MODE BYPASS 3D-Sound MODE1 L H
MODE 3D Stereo 3D Mono
MODE2 L H
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NJM2198
sPIN 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.FIL4 2.FIL5 3.FIL6 4.FIL7 5.FIL8 6.FIL9 7.VrefIN 8.Vref 9.V+ 10.GND 11.MODE1 1.TP1 2.FIL4 3.FIL5 4.FIL6 5.FIL7 6.FIL8 7.FIL9 8. VrefIN 9. Vref 10. V+ 11. GND 12. MODE1
12.MODE2 13.ROUT 14.LOUT 15.VOL2 16.VOL1 17.TP 18.FIL3 19.FIL2 20.FIL1 21.RIN 22.LIN 13. MODE2 14. TP2 15.ROUT 16.LOUT 17.VOL2 18.VOL1 19.TP3 20.FIL3 21.FIL2 22.FIL1 23.RIN 24.LIN
MODE1 12 MODE2 13
1
2
3
4
5
6
7
8
9
10
11
12
DMP- 24 sBLOCK DIAGRAM (DMP-24)
VOL2 VOL1 18 FIL1 FIL2 21 FIL3 20
22
17
BYPASS
LIN
24
50k
3D-STEREO 3D-MONO
16 LOUT
VREF BYPASS 3D-STEREO 50k 3D-MONO
RIN
23
15 ROUT
VREF 50k
9
50k VREF
Vref
VREF
8 VrefIN
V+ VREF
GND
2 FIL4
3 FIL5
4 FIL6
5 FIL7
6 FIL8
7 FIL9
10 V+
11 GND
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NJM2198
sTERMINAL DESCRIPTION PIN No. SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
1
TP1
Test Pin
0V
V+
V+
2
FIL4
Filter Input
50
50
V+/2
V+
3
FIL5
Filter Input
1.96k 3.92k
V+/2
VREF
V+
4
FIL6
Filter Input
150
V+/2
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NJM2198
sTERMINAL DESCRIPTION PIN No. SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
V+
VOLTAGE
5
FIL7
Filter Input
76k
V+/2
V+
6
FIL8
Filter Input
3.74k 73.6k
V+/2
VREF
V+
7
FIL9
Filter Input
400
V+/2
V+
8
VREFIN
Reference Voltage Input
400 50k
50k
V+/2
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NJM2198
sTERMINAL DESCRIPTION PIN No. SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
V+ V+
VOLTAGE
9
VREF
Reference Voltage
50
50
V+/2
10
VCC
Power Supply
V+
11
GND
GND
0V
V+
12
MODE1
Mode Control
150 50k
0V
VREF
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NJM2198
sTERMINAL DESCRIPTION PIN No. SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
V+
VOLTAGE
13
MODE2
Mode Control
150 50k
V+/2
VREF
14
TP2
Test Pin
0V
V+
V+
15
ROUT
Rch Output
50
50
V+/2
V+
V+
16
LOUT
Lch Output
50
50
V+/2
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NJM2198
sTERMINAL DESCRIPTION PIN No. SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
V+
VOLTAGE
17
VOL2
WIDTH VR Input
150
V+/2
V+
V+
18
VOL1
WIDTH VR Input
50 150
50
V+/2
19
TP3
Test Pin
0V
V+
20
FIL3
Filter Input
3.01k
V+/2
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NJM2198
sTERMINAL DESCRIPTION PIN No. SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
V+
VOLTAGE
21
FIL2
Filter Input
1.5k
V+/2
V+
V+
22
FIL1
Filter Input
50 14.33k
50
V+/2
V+
23
RIN
Rch Input
150 50k
V+/2
VREF
V+
24
LIN
Lch Input
150 50k
V+/2
VREF
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NJM2198
s APPLICATION CIRCUIT
L ch OUTPUT R ch OUTPUT
R ch INPUT
L ch INPUT
3D Mono
0.033u
0.01u
WIDTH VR Min Miax
10u
10u
0.33u
0.47u
10u
10u
C16
C15
C12
C13
C17
C14
C11
C10
3D Stereo 10k R2
+
+
+
+
10kB
+
22
LIN
21
RIN
20
FIL1
19
FIL2
18
FIL3
17
TP
16
VOL1
15
VOL2
14
LOUT
13
ROUT
12
MODE2
NJM2198
3D Sound MODE1 VrefIN GND FIL4 FIL5 FIL6 FIL7 FIL8 FIL9 Vref V+ Bypass 10k 10u R1 + C8
1
C1
2
0.1u C2
3
0.01u C3
4
0.22u C4
5
0.0047u C5
6
0.1u C6
7
C18 + 1u
8
V+ + 10u
9
10
11
+ C7
12V
SDIP- 22
Parts No. C1,C5 C2,C13 C3 C4 C6 C7
Value 0.1F 0.01F 0.22F 0.047F 1F 100F
Tolerance 5% 5% 5% 5% 20% --
Parts No. C8,C9,C10,C11,C15,C16,C18 C12 C14 C17 R1,R2
100u
Value 10F 0.033F 0.47F 0.33F 10k
C9
10u
Tolerance 20% 5% 5% 5% 5%
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NJM2198
s APPLICATION CIRCUIT
L ch OUTPUT R ch INPUT L ch INPUT R ch OUTPUT
3D Mono
0.033u
WIDTH VR Min Miax
0.01u
0.33u
10u
10u
0.47u
10u
10u
C16
C15
C12
C13
C17
C14
C11
C10
3D Stereo 10k R2
+
+
+
+
10kB
+
24
LIN
23
RIN
22
FIL1
21
FIL2
20
FIL3
19
TP3
18
VOL1
17
VOL2
16
LOUT
15
ROUT
14
TP2
13
MODE2
NJM2198
3D Sound MODE1 VrefIN GND FIL4 FIL5 FIL6 FIL7 FIL8 FIL9 TP1 Vref V+ Bypass 10k 10u R1 C8 +
1
2
C1
3
0.1u C2
4
0.01u C3
5
0.22u C4
6
0.0047u C5
7
0.1u C6
8
C18 + 1u
9
+ 10u
10
V+
11
12
+ C7
12V
DMP- 24
Parts No. C1,C5 C2,C13 C3 C4 C6 C7
Value 0.1F 0.01F 0.22F 0.047F 1F 100F
Tolerance 5% 5% 5% 5% 20% --
Parts No. C8,C9,C10,C11,C15,C16,C18 C12 C14 C17 R1,R2
Value 10F 0.033F 0.47F 0.33F 10k
100u
C9
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10u
Tolerance 20% 5% 5% 5% 5%
NJM2198
sTYPICAL CHARACTERISTICS
NJM2198 GAIN STRUCTURE
a:BYPASS Mode b:3D-Stereo Mode c:3D-Stereo Mode 10 Vin=-10dBV Lch Vout=Lch Vin=-10dBV Lch Vout=Lch Vin=-10dBV Lch Vout=Rch
5
0 Gain [dBV]
b 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
0 Gain [dBV] b a -5
-10
-15
-20 10 100 1k Frequency f [Hz] 10k 100k
[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.
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