JRC NJM2700 User Manual

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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 soun d. In

addition, it provides rich bass sound.

The NJM2700 is suitable for speaker system fo
personal computer, TV, CD radio-cassette, portable
audio equipment, and others.

■■■■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 SDIP42, SOP40, QFP48

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.
S RS 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. S RS Labs also requires any us ers t o comply with all rul es and regulati ons 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:[phone] Fax:[phone] http://www.srslabs.com

■■■■PACKAGE OUTLINE

NJM2700L

NJM2700FJ1

PRELIMINAR

NJM2700G

-1-

NJM2700

■■■■PIN FUNCTION (SDIP42)

10
11
12
13
14
15
16
17
18
19
20
21

1
2
3
4
5
6
7
8
9

42
41
40
39
38
36
35
34
33
32
31
30
29
28
27
26
25
24
24
23
22

1. C3 15. C2 29. BASSOUT

2. C4 16. SFIL1 30. OUTR

3. FILOUT 17. SFIL2 31. OUTL

4. FIL1 18. SFIL3 32. TP3

5. FIL2 19. SVOL2 33. FFR4

6. FIL3 20. SVOL1 34. FFR3

7. FIL4 21. GND 35. FFR2

8. FIL5 22. V+ 36. FFR1

9. FIL6 23. VREFIN 37. FFL4

10. FIL7 24. VREF 38. FFL3

11. TP1 25. MODE3 39. FFL2

12. PCOUT 26. MODE2 40. FFL1

13. PCIN 27. MODE1 41. INR

14. C1 28. TP2 42. INL

■PIN FUNCTION (SOP40)

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

1. C3 15. SEL1 29. OUTR

2. C4 16. SFIL2 30. OUTL

3. FILOUT 17. SFIL3 31. FFR4

4. FIL1 18. SVOL2 32. FFR3

5. FIL2 19. SVOL1 33. FFR2

6. FIL3 20. GND 34. FFR1

7. FIL4 21. V+ 35. FFL4

8. FIL5 22. VREFIN 36. FFL3

9. FIL6 23. VREF 37. FFL2

10. FIL7 24. MODE3 38. FFL1

11. PCOUT 25. MODE2 39. INR

12. PCIN 26. MODE2 40. INL

13. C1 27. TP2

14. C2 28. BASSOUT

-2-

■PIN FUNCTION (QFP48)

NJM2700

25 36

37

48

24

13

1 12

1. NC 17. SVOL1 33. FFR2

2. FIL3 18. GND 34. FFR1

3. FIL4 19. V+ 35. FFL4

4. FIL5 20. VREFIN 36. NC

5. FIL6 21. VREF 37. NC

6. FIL7 22. MODE3 38. FFL3

7. PCOUT 23. MODE2 39. FFL2

8. PCIN 24. NC 40. FFL1

9. C1 25. NC 41. INR

10. C2 26. MODE1 42. INL

11. SFIL2 27. TP2 43. C3

12. NC 28. BASSOUT 44. C4

13. NC 29. OUTR 45. FILOUT

14. SFIL2 30. OUTL 46. FIL1

15. SFIL3 31 FFR4 47. FIL2

16. SVOL2 32 FFR3 48. NC

-3-

T
7

T

T
7

T
3

NJM2700

■■■■BLOCK DIAGRAM (SDIP42)

INL

INR

FFL1

FFL2

42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22

FOCUS

FFL3

FFL4

FFR1

FFR2

FFR3

FFR4

TP3

OUTL

OUTR

BASSOUT

MODE1

MODE2

MODE3

VREF

VREFIN

TP2

V+

MODE

L

L

H

MODE2 MODE3

TruBass 3D Stereo

H

R

L

HH

LL

-1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

C3

C4

FIL1

FILOU

■■■■BLOCK DIAGRAM (SOP40)

INL

INR

FFL1

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22

FOCUS

MODE1

FIL2

FIL3FIL4FIL5FIL6FIL

FFL2

FFL3

FFL4

L

L

H

TP1

PCIN

PCOU

FFR1

FFR2

FFR3

FFR4

OUTL

OUTR

BASSOUT

MODE2 MODE3

TruBass 3D St ereo

HH

LL

C1

C2

SFIL1

SFIL2

SFIL3

SVOL2

MODE1

MODE2

MODE3

TP2

VREF

GND

SVOL1

VREFIN

V+

21

MODE

-1

H

R

L

MODE1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

C3

C4

FIL1

FIL2FIL3FIL4FIL5FIL6FIL

FILOU

PCOU

C1

PCIN

C2

SFIL1

SFIL2

SFIL

SVOL2

GND

SVOL1

-4-

■■■■BLOCK DIAGRAM (QFP48)

NC FFL4

36 35 34 33 32 31 30 29 28 27 26 25

NC

37

FFL3

38

FOCUS

39

INR

INL

C3

C4

40

41

42

43

44

FFL2

FFL1

NJM2700

FFR1

L

R

MODE1

L+R

FFR2

FFR3

H

L

H

L

+

+

FFR4

OUTL

+

+

+

+

+

−

BASSOUT

OUTR

+

+

-1

TP2

MODE

MODE3

NC

MODE1

NC

24

23

MODE2

22

MODE3

21

VREF

20

VREFIN

19

18

17

V+

GND

SVOL1

H

L

FILOUT

FIL1

FIL2

NC

45

MODE2

46

TruBass

47

48

1

2

3

4

NC

FIL3

FIL4

FIL5

H

L

5

6

FIL6

FIL7

L-R

3D

Stereo

7

8

9

PCIN

PCOUT

10 11 12

C1 C2

SFIL1

NC

16

15

14

13

SVOL2

SFIL3

SFIL2

NC

-5-

NJM2700

■■■■ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER SYMBOL RATING UNIT

Supply Voltage V+ 15 V

(SDIP42) 700

Power Dissipation PD
Operating T e mperature Range T

Storage Temperature Range T

■■■■ELECTRICAL CHARACTERISTICS ( V

PARAMETER SYMBOL

Operating
Voltage
Operating

+

V

- - - - - - 4.7 12.0 13.0 V

ICC

Current

Reference
Voltage
Maximum

V

V+/2 - - - - 5.8 6.0 6.2 V

REF

V

IM

Input
Voltage

No
Signal

f=1kHz
THD=3%

INPUT

L R

- - - BYPASS - - 8.7 17.4 26.1

- - - WOW - - 8.7 17.4 26.1

V

IN

- - V

-40 to+85

opr

-40 to +125

stg

+

=12V, Ta = 25 °C, VIN=-20dBV (=0.1Vrms), Speaker Size :Medium)

TEST CONDITION

IN

(SOP40) 700
(QFP48) 450

OUTPUT

L

BYPASS - -

R

MODE

PUNCH

VR

mW

°C
°C

WIDTH

VR

MIN TYP MAX UNIT

10.0
(3.2)

12.0
(4.0)

mA

-

Output Noise VNO

f=100Hz
THD=3%

f=125Hz
THD=3%

f=125Hz
THD=3%

f=10kHz
THD=3%

f=100Hz
THD=3%

f=10kHz
THD=3%

Rg=0Ω
A-Weighted

Rg=0Ω
A-Weighted

Rg=0Ω
A-Weighted

V

V

IN

IN

VIN

V

IN

V

IN

- - V

IN

V

IN

VIN

V

IN

- - V

V

IN

VIN

V

IN

VIN

-V

-V

V
V

-V

-V

IN

L R

IN

IN

IN
IN

IN

L R

IN

0 0

0 0

0 0

L

TruBass

R

L

R

3D-

STEREO

3D-

STEREO

L

R

L

R

WO W

WO W

WO W

L

BYPASS - - -

R

L

TruBass

R

L

R

3D-

STEREO

MAX - -

- MAX -

- MAX -

MAX MAX

MAX MAX

MAX MAX

MAX - -

- MAX -

-5.8

(0.51)

-5.0

(0.56)

-10.9
(0.29)

-2.7

(0.73)

0.5

(1.1)

-5.5

(0.53)

-3.8

(0.65)

-3.0

(0.71)

-8.9

(0.36)

-110

(3)

-80

(100)

-95
(18)

-

-

-

-

-

-

-100
(10)

-

-

dBV

(Vrms)

dBV

(µVrms)

Rg=0Ω
A-Weighted

0 0

L

R

WO W

MAX MAX -

-80

(100)

-75

(180)

-6-