AN7395 [PANASONIC]
Spatializer IC; Spatializer IC
| 型号： | AN7395 |
| 厂家： | 
PANASONIC |
| 描述： | Spatializer IC |
| 文件： | 总3页 (文件大小：48K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7395K, AN7395S
Spatializer IC
■ Overview
AN7395K and AN7395S developed for the consumer
electronics and multimedia markets, the Spatializer inte-
grated circuit is based on Desper Prodcts multi-channel
Unit : mm
AN7395K
1
20
®
PRO Spatializer 3D Audio Production System. The
AN7395K and AN7395S make use of this innovative
technology to enhance and expand the sound from con-
ventional two-speaker systems.
■ Features
10
11
•
Profound three-dimensional spatial sound with conven-
1.1±0.25
3.45±0.25
6.35±0.3
tional two-speaker system
4.5±0.25
•
Audio signal recorded through this IC reproducible by
ordinary stereo unit
•
•
•
•
Optimization of enhancement effect
Sound expansion variably controllable
Pseudo stereo effect with monaural sound signal
Positioning/Shift of individual sound source along 270
degrees arc in real time
3 ~ 15˚
7.62±0.25
20-Lead SDIP Package (SDIP020-P-0300A)
Unit : mm
AN7395S
■ Application
•
•
•
•
•
•
•
•
•
•
Computer sound board
Active speaker system
20
1
Multi-media equipment for home
Desk-top type TV meeting unit
HiFi unit (amp., preamp.)
Stereo TV and video
Portable audio equipment
Car audio
11
10
Converter for cable or satellite broadcasting
Video game for home and business
0.3
5.4±0.3
7.7±0.3
20-Lead SOP Package (SOP020-P-0300A)
ICs for Audio Common Use
AN7395K, AN7395S
■ Application Circuit
+ 6.0 ~+10.0
VDC
39nF
+
+
10nF
18
F1
16
F2
15
12
6
11
TIM2
10
TIM1
9
100µF
NC
VCC
SET
LRET
22µF
LOUT
3
4
5
Left channel output
Surround output
Left Channel Input
Right Channel Input
1
LIN
100µF
100µF
SOUT
AN7395S
22µF
19
RIN
ROUT
RRET
Right channel output
Mode
14
VREG
17
GND
20
GND
8
VREF
((Space))
13
2
7
+
100µF
+
56nF
Changeover
+
to VCC
0 to 0.9V : OFF mode
2.1 to 2.8V : STEREO mode
4.2 to VCC : MONAURAL mode
+
1µF
■ Product Specification Outline Table
Main Characteristics (VCC = 9V, f = 1kHz, Ta = 25˚C)
Parameter
Symbol
Itot
Condition
min.
typ.
11
max.
17
Unit
mA
Total Circuit Current
Vin= 0mV
5
Maximum Input Voltage
Output Noise Voltage Note 1)
Total Harmonics Distortion Note 2)
Input Resistance
Vin (max.)
Vno
Lin, Rin THD = 1% Note 3)
Lout, Rout Rg = 4.7kΩ Note 4)
Lout, Rout Vin = 400mV Note 3)
2.0
2.8
20
Vrms
100 µVrms
THD
RIN
0.05
50
0.3
%
kΩ
Note 1) Measured through filter of A characteristic curve
Note 2) Measured through 15Hz to 30kHz (12dB/OCT) filter
Note 3) Mode : ST Lin + Rin ((Space)) MIN
Note 4) Mode : ST ((Space)) MIN
■ Operational Description
The AN7395K and AN7395S are respectively equipped with the following devices :
• Type E Spatializer (Spatial Expansion)
It uses the ordinary stereo record and broadcasting as a sound source and can offer sound expansion exceeding speaker location.
→It provides natural sound effect which can not be obtained only with conventional two-speaker stereo system. Sound image
positioned at the center does not move at all, and music instruments and sound positioned to left and right surround listeners. The
surround stage can be created, exceeding location of two speakers. Real three-dimensional sound field can be created by ambience
sound. Listeners feel as if no speakers exist.
• Type D Spatializer (Directional Positioning)
It can position or shift the individual sound source along 270˚ arc in real time for example at game play or reproduction. →The
AN7395K and AN7395S can support almost infinitive number of inputs. They require only the function panning these signals
between L and R. These ICs can be easily incorporated in the video game machine or sound board of computer and thereby the
sound source can be controlled in three dimensions without DSP.
• Type S Spatializer (Spatial Synthesis)
Though almost all the sound of computer, video game or multi-media uses mono-source, playback is often performed by the
stereo unit. The spatializer can give the mono-source profoundness and realism, providing the natural and comfortable pseudo
stereo effect.
ICs for Audio Common Use
AN7395K, AN7395S
■ Miscellaneous
When users use these products, licensing contract should be made with the Desper Products, Inc. For details, refer to the
following :
JAPAN OFFICE
USA OFFICE
Desper Products Inc.
Desper Products Inc.
Tokyo Office
SilliconValley Offices
Mr. Masaya Ishikawa
Far East Manager
Mr. Mark Markunas
OEM Accouunt Manager
1-15-4-201
453Ranvendale Drive, Suite C
Mountain view, CA 94118
TEL : (415)428-0400Ext207
FAX : (415)428-1064
Sasazuka, Shibuya-ku, Tokyo, 151-0073 Japan
TEL : +81-3-5454-1140
FAX : +81-3-5790-5394
E-mail : Mlshi-kawa@classic.msn.com
E-mail : mmarkunas@spatializer.com
* Spatializer®and
are the trademarks of Desper Products Inc.
■ Printed Circuit Board Layout
10kΩ VR
®
SPATIALIZER
Audio Processor
EMR 4.0 (AN7395S)
Rin
22µF
22µF
1µF
150kΩ
27nF
Lin
22µF
10nF
1µF
VCC
100µF
Rout
10µF
100µF 10µF
100µF
Lout
100µF
39nF 56nF
10µF
1MΩ
100µF
Sout
相关型号：
©2020 ICPDF网 联系我们和版权申明