NJM2188 New Japan Radio, NJM2188 Datasheet

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NJM2188

Manufacturer Part Number
NJM2188
Description
Passive Matrix TruSurround 3D Audio Processor
Manufacturer
New Japan Radio
Datasheet
Passive Matrix TruSurround
audio processor. It regenerates the full surround sound
field directly from any kinds of surround encoded stereo
input(Lt/Rt) signals.
signal into 4 channel signals, the TruSurround virtualizer
encodes them into 2 channel surround signals again.
channel signals are not required.
and regenerates a 3D sound field from normal L/R input.
radio cassette, multimedia speaker system ,and others.
Japan Radio Co., Ltd. SRS is protected under U.S. and foreign patents issued and/or pending. TruSurround and the
trademarks of SRS Labs, Inc. in the United States and selected foreign countries. Neither the purchase of the NJM2188, nor the
corresponding sale of audio enhancement equipment conveys the right to sell commercialized recordings made with any TruSurround
technology.
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:
GENERAL DESCRIPTION
FEATURES
The NJM2188 is a Passive Matrix TruSurround
After the internal passive matrix circuit decodes Lt/Rt
Accordingly any pre-processors decoding into 4
The NJM2188 also includes the SRS 3D-STEREO,
The NJM2188 is suitable for TV, mini component, CD
Operating Voltage
Maximum Input Voltage
Low Output Noise
SRS 3D-STEREO FUNCTION (Two-grade Switch for 3D Effect)
BYPASS FUNCTION
Bipolar Technology
Package Outline
The TruSurround technology right incorporated in the NJM2188 are owned by SRS Labs, a U.S. Corporation and licensed to New
SRS Labs requires that all users of the NJM2188 must enter into a license agreement directly with SRS Labs if the royalty is not
SRS Labs., Inc.
2909 Daimler Street. Santa Ana, CA 92705 USA
Tel:949-442-1070 Fax:949-852-1099
http://www.srslabs.com
(4.7 to 13V)
(1.5Vrms typ. at V
(32
(THROUGH)
DIP16, DMP16, SSOP16
µ
TM
Vrms typ. at TRU mode)
3D Audio Processor
TM
+
3D
11V)
PACKAGE
NJM2188D
NJM2188V
P R E L I M I N A R Y
NJM2188
NJM2188M
- 1 -A
, are

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NJM2188 Summary of contents

Page 1

... TruSurround technology. SRS Labs requires that all users of the NJM2188 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 ...

Page 2

... NJM2188 BLOCK DIAGRAM Lch in 50K VREF Rch in 50K VREF SW Control PIN CONFIGRATION MODE 1 1 MODE VREF 4 NJM2188 FIL2_OUT 5 FIL2_IN 6 FIL2_IN2 7 GND 51K 20K TRU 150K SW3 15K 11K SRS 3D-1 12.5K SRS 3D-2 VREF VREF 5K TRU 20K SW4 VREF VREF SRS 3D1 ...

Page 3

... BYPASS SRS3D SRS3D NJM2188 UNIT MIN TYP MAX - 4.7 12.0 13.0 - 9.0 13.5 TRU - 5.5 6.0 6.5 11.0 12.0 - (3.55) (3.98) 4.5 6.5 - (1.67) (2.11) 7.3 9.3 TRU - (2.32) (2.92) 3.9 5.9 - (1.57) (1.97) 7.5 9.5 - (2.37) (3.0) 7.3 9 ...

Page 4

... NJM2188 ELECTRICAL CHARACTERISTICS(V PARAMETER SYMBOL Output A- Weighting V NOISE Noise Rg=0 Total f=1kHz Harmonic THD V Distortion Bypass G f=1kz Bypass2 Gain G f=1kHz Lt/Rt-L Passive Gain G f=1kHz Lt/Rt-R f=1kHz SRS 3D Gain G SRS3D f=1kHz MODE Select V Control V MODE V Voltage - =12V,Ta=25 C) CONDITION IN OUT ...

Page 5

... C14 C15 10uF/50V C6 10uF/50V 1.5K 0.01uF R14 GND GND VREF Tolerance PARTS NO. VALUE R12 5% 5% R13 5% R14 R15 R16,R17 NJM2188 Lch out 0.22uF C8 10uF/50V Rch out C9 10uF/50V 56K R12 GND R10 2M 33K R13 75K R15 C7 0.0047uF VREF VREF Tolerance 56k 5% 33k 5% 1 ...

Page 6

... NJM2188 TYPICAL CHARACTERISTICS FREQUENCY RESPONSE BYPASS MODE +5 +0 -10 Vout (dBV) -15 -20 -25 - 100 200 500 f(Hz) a: Vin = 0dBV Lch Vout = Lch b: Vin = 0dBV Rch Vout = Rch + V =12V, 0dB V = 1Vrms FREQUENCY RESPONSE SRS 3D-1 MODE + Vout -10 (dBV) -15 -20 -25 - 100 ...

Page 7

... 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. NJM2188 +10 + ...

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