ICs for Audio Common Use AN7399S Spatializer sound processor IC ■ Overview Unit: mm 10.09±0.20 9 +0.10 4.30±0.20 6.40±0.30 16 0.15 –0.05 A spatializer audio processor is the Desper Inc.'s proprietary signal processing technology exclusively developed for the consumer electronics and multimedia market. It is based on the Desper's professional 3D audio production system "PROSpatializer". You can enjoy a sound enhancement and extension effect with the conventional two-speaker stereo system by using the innovative technology adopted in this equipment. 8 (0.60) 1.27 ■ Features 0.40±0.10 Seating plane • Fewer external parts (minimum parts count: 4) • Wide operating supply voltage: 4.5 V to 10 V • A sound source in the center position is necessarily positioned in center regardless of the spatializer effect value. 0.65±0.10 0.10±0.10 1 0.65±0.10 1.50±0.20 0° to 10° 0.50±0.20 Seating plane SOP016-P-0225C Note) The package of this product will be changed to lead-free type (SOP016-P-0225F). See the new package dimensions section later of this datasheet. ■ Applications • Radio cassette recorder, stereo-sound TV and VCR, personal computer, active speaker N.C. 9 8 LOUT 10 7 LCNF1 11 SPON/OFF 12 VCC 13 LIN2 14 LIN1 15 16 LCNF2 ■ Pin Assignment N.C. ROUT 6 RCNF2 5 VREF 4 GND 3 RIN2 2 RIN1 RCNF1 1 R Note) Spatializer and the device trademark of circle-in-square are owned by Desper Products Inc. This product can be used with the consent of the Desper Products Inc. Under the terms of the agreement between Matsushita Electric and Desper Products Inc., no technical information on the Spatializer, which is applied to this product, shall be provided. Publication date: November 2001 SDC00028BEB 1 AN7399S ■ Pin Descriptions Pin No. Description Pin No. Description 1 RCNF1 9 N.C. 2 RIN1 10 LOUT 3 RIN2 11 LCNF1 4 GND 12 SPON/OFF 5 VREF 13 VCC 6 RCNF2 14 LIN2 7 ROUT 15 LIN1 8 N.C. 16 LCNF2 ■ Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage VCC 10.5 V Supply current ICC 3.0 mA PD 31.5 mW Topr −25 to +75 °C Tstg −55 to +150 °C Power dissipation Operating ambient temperature Storage temperature * * Note) *: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. ■ Recommended Operating Range Parameter Supply voltage Symbol Range Unit VCC 4.5 to 10.0 V ■ Electrical Characteristics at VCC = 9 V, freq. = 1 kHz, Ta = 25°C Parameter Symbol Conditions Typ Max Unit VFFG VIN = 1 V[rms], f = 1 kHz −1 0 1 dB Off mode total harmonic distortion THDFF VIN = 1 V[rms], f = 1 kHz 0.01 0.05 % On mode total harmonic distortion *1 THDON VIN = 0.4 V[rms], f = 1 kHz 0.02 0.1 % Off mode output residual noise *2 NFF VIN = 0 mV[rms], RG = 4.7 kΩ 5 15 µV[rms] On mode output residual noise *2 NON VIN = 0 mV[rms], RG = 4.7 kΩ 7 20 µV[rms] CT VIN = 1 V[rms], f = 1 kHz −95 −75 dB VMAX THD = 1%, f = 1 kHz 2.0 2.4 V[rms] Total circuit current at no load ITOTAL VIN = 0 mV[rms] 0.8 1.4 2.0 mA Off mode changeover voltage VOFF 0.0 0.5 V On mode changeover voltage VON 2.7 VCC V Crosstalk (off mode) *1 Maximum input level (off mode)*1 Note) *1: Use DIN audio filter. *2: Use A-characteristic curve filter. 2 Min *1 Off mode gain *1 SDC00028BEB AN7399S ■ Terminal Equivalent Circuits Pin No. Symbol 1 RCNF1 2 RIN1 Equivalent circuit Description 2 Voltage Capacitor pin 1 4.5 V R-ch. input pin 1 4.5 V R-ch. input pin 2 4.5 V 1 kΩ 50 kΩ 1/2VCC 3 RIN2 3 1 kΩ 50 kΩ 1/2VCC 4 GND 5 VREF GND pin 0V Reference voltage stabilizing pin 4.5 V Capacitor pin 2 4.5 V R-ch. output pin 4.5 V 50 kΩ 5 50 kΩ 6 RCNF2 7 ROUT 500 Ω 7 8 N.C. 9 N.C. SDC00028BEB 3 AN7399S ■ Terminal Equivalent Circuits (continued) Pin No. 10 Symbol Equivalent circuit Description LOUT 500 Ω 11 LCNF1 12 SPON/OFF Voltage L-ch. output pin 4.5 V Capacitor pin 3 4.5 V 10 Mode changeover pin VCC to 2.7 V / 0.5 V to 0 V 500 Ω 12 13 VCC 14 LIN1 14 Supply pin VCC L-ch. input pin 1 4.5 V L-ch. input pin 2 4.5 V Capacitor pin 4 4.5 V 1 kΩ 50 kΩ 1/2VCC 15 LIN2 15 1 kΩ 50 kΩ 1/2VCC 16 4 LCNF2 SDC00028BEB LOUT 10 µF 100 µF 9 8 N.C. 10 7 10 µF 11 6 RCNF2 4.7 nF ROUT 12 5 10 µF V REF N.C. LCNF1 RIN GND 13 4 LIN2 14 3 RIN2 LIN1 15 2 RIN1 10 µF 16 1 LCNF2 4.7 nF RCNF1 56 nF 0 Ω to 50 kΩ 10 µF LIN Change a resistance value for variation of space effect VCC ■ Application Circuit Example SPON/OFF AN7399S ■ Conceptual Description on Spatializer Operation • Stereo normal mode All sound are heard from between both left and right speakers. • Conventional surround system Sound expands outside the speakers but the sound position is not stable. • Spatializer The sound expands outside the two speakers and the sound position is stable. The sound come to have its expansion and depth. And also, a sound source in the center position is necessarily positioned in center regardless of the spatializer effect value. ■ Usage Notes 1. Do not apply 0.3 V or more to pin 12 because it relates with pin 13 (VCC pin) 2. If more than 0.3 V is applied to pin 12, the current flows to pin 13 (VCC pin) via a surge protection diode connected to pin 12. SDC00028BEB 5 AN7399S ■ New Package Dimensions (Unit: mm) • SOP016-P-0225F (Lead-free package) 10.09±0.20 (0.60) 9 1 0.40+0.10 -0.05 Seating plane 6 SDC00028BEB +0.10 0.15-0.05 1.50±0.20 1.27 0° to 10° 0.50±0.20 8 0.10±0.10 (0.60) 6.40±0.30 (1.05) 4.30±0.20 16 Seating plane Request for your special attention and precautions in using the technical information and semiconductors described in this material (1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. 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