AN7395K PANASONIC | Alldatasheet

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Technical content

AN7395K and AN7395S developed for the consumer electronics and multimedia markets, the Spatializer inte- grated circuit is based on Desper Prodcts multi-channel 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. n Features

  • Profound three-dimensional spatial sound with conven- tional two-speaker system
  • 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 n Application
  • Computer sound board
  • Active speaker system
  • Multi-media equipment for home
  • Desk-top type TV meeting unit
  • HiFi unit (amp., preamp.)
  • Stereo TV and video
  • Portable audio equipment
  • Car audio
  • Converter for cable or satellite broadcasting
  • Video game for home and business AN7395K, AN7395S Spatializer IC 19.1–0.3 0.9–0.25 3 ~ 15˚ Unit : mm 6.35–0.3 0.5–0.11.778 4.5–0.25 3.45–0.25 7.62–0.25 0.35 + 0.1 – 0.05 1.1–0.25 AN7395K 20-Lead SDIP Package (SDIP020-P-0300A) Unit : mm 0.1–0.1 1.5–0.2 0.3 0.65 0.15 0.4 1 20 0.4–0.251.27 12.6–0.3 5.4–0.3 7.7–0.3 10 11 AN7395S 20-Lead SOP Package (SOP020-P-0300A)

ICs for Audio Common UseAN7395K, AN7395S LIN R IN F1 F2 NC V CC SET TIM 2 TIM 1 LRET LOUT SOUT R OUT R RETV REFGNDGNDV REG AN7395S Changeover 0 to 0.9V : OFF mode 2.1 to 2.8V : STEREO mode 4.2 to V CC : MONAURAL mode to VCC + 6.0 ~+10.0 V DC 17 20 1413 8 2 7 91011612151618 Left Channel Input Right Channel Input Left channel output Surround output Right channel output 10kΩ VR 22µF 150kΩ 1µF 100µF 56nF + + + 100µF 100µF 100µF 39nF 10µF 10µF 1M Ω 27nF 10nF 22µF 22µF ((Space)) Mode Total Circuit Current Maximum Input Voltage Output Noise Voltage Note 1) Total Harmonics Distortion Note 2) Input Resistance Itot V in (max.) V no THD R IN V in= 0mV Lin, Rin THD = 1% Note 3) Lout, Rout R g = 4.7kΩ Note 4) Lout, Rout V in = 400mV Note 3) 2.0 2.8 0.05 100 0.3 mA Vrms µVrms kΩ Parameter Symbol Condition min. typ. max. Unit n Product Specification Outline Table Main Characteristics (VCC = 9V, f = 1kHz, Ta = 25˚C) Note 1) Measured through filter of A characteristic curve Note 2) Measured through 15Hz to 30kHz (12dB/OCT) filter Note 3) Mode : ST L in + Rin ((Space)) MIN Note 4) Mode : ST ((Space)) MIN n 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. fi 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. fi 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. n Application Circuit

ICs for Audio Common Use AN7395K, AN7395S n Miscellaneous When users use these products, licensing contract should be made with the Desper Products, Inc. For details, refer to the following : JAPAN OFFICE Desper Products Inc. Tokyo Office Mr. Masaya Ishikawa Far East Manager 1-15-4-201 Sasazuka, Shibuya-ku, Tokyo, 151-0073 Japan TEL : +81-3-5454-1140 FAX : +81-3-5790-5394 E-mail : Mlshi-kawa@classic.msn.com USA OFFICE Desper Products Inc. SilliconValley Offices Mr. Mark Markunas OEM Accouunt Manager 453Ranvendale Drive, Suite C Mountain view, CA 94118 TEL : (415)428-0400Ext207 FAX : (415)428-1064 E-mail : mmarkunas@spatializer.com * Spatializer® and are the trademarks of Desper Products Inc. R in Lin R out Lout Sout 22µF 22µF 100µF 100µF 100µF 100µF 39nF 56nF 1M Ω 10µF 10µF100µF10µF 1µF 22µF 150kΩ 27nF 10nF 1µF EMR 4.0 (AN7395S) 10kΩ VR V CC SPATIALIZER ® Audio Processor n Printed Circuit Board Layout