3D Effect Audio Processor

Rajkumar Sharma
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SKU: EL135457
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The project presented here is a 3D sound processor, that regenerates 3D sound to stereo speakers. The board is able to regenerate 3D sound from a stereo audio input. It features of wide operating voltage range, wide dynamic range, and low output noise and is suitable for any audio application. This tiny module can add 3D sound effects to your next project. Basically, this mini low-cost module converts a stereo audio signal into 3D effect audio and it is based on PT2387 chip. The chip features a specially designed PTC HRTFs filter and with its space-enhanced circuit, it provides excellent audio quality and performance. The module provides excellent 3D effect audio output from a stereo audio source and a built-in LED display when the 3D sound effect is active. A tactile switch is provided to activate the 3D sound effect.

Features

Operating Voltage 5V to 9V DC
THD= N<0.01%, S/N>95dB
On Board Power LED
Standard Audio Signal Input and Output
On Board 3D function LED
5MM Stereo Female socket for Audio Input and Output
On Board Tactile Switch for 3D Sound ON/OFF
PCB Dimensions 55.88 x 26.67 mm
4 x 2.5 mm Mounting Holes

Connections and Other Details

CN1: Pin 1,2 = VCC 5V TO 9V, Pin 3.4 = GND
CN2: Stereo EP 3.5MM Female Connector, Stereo Audio Signal Input
CN3: Optional Audio input
CN4: Optional Audio output
CN5: Stereo EP 3.5MM Female Connector, Stereo Audio Signal Output
SW1: Tactile Switch 3D Sound Effect ON/OFF
D1: Power LED
D2: 3D Sound Function Display

Schematic

Parts List

NO.	QNTY.	REF	DESC.	MANUFACTURER	SUPPLIER	SUPPLIER PART'S NO
1	1	CN1	4 PIN MALE HEADER PITCH 2.54MM	WURTH	DIGIKEY	732-5317-ND
2	1	CN2	3.5MM FEMALE STEREO EP SOCKET	CUI AUDIO	DIGIKEY	CP1-3525N-ND
3	2	CN3,CN4	3 PIN MALE HEADER PITCH 2.54MM	WURTH	DIGIKEY	732-5316-ND
4	1	CN5	3.5MM FEMALE STEREO EP SOCKET	CUI AUDIO	DIGIKEY	CP1-3525N-ND
5	1	C1	100nF/50V CERAMIC SMD SIZE 0805	YAGEO/MURATA	DIGIKEY
6	1	C2	100uF/16-35V ELECTROLYTIC SMD	UNITED CHEMI	DIGIKEY	565-EMHL250ARA101MF80GCT-ND
7	1	C3	47uF/25V ELECTROLYTIC SMD	PANASONIC	DIGIKEY	PCE3804CT-ND
8	4	C4,C5,C6,C7	10uF/35V ELECTROLYTIC SMD	PANASONIC	DIGIKEY	PCE3947CT-ND
9	1	D1	LED RED SMD SIZE 0805	LIGHT ON INC	DIGIKEY	160-1427-1-ND
10	1	D2	LED GREEN SMD SIZE 0805	DIALLIGHT	DIGIKEY	350-2044-1-ND
11	2	R1,R2	1K 5% SMD SIZE 0805	YAGEO/MURATA	DIGIKEY
12	1	SW1	4 PIN TACTILE SWITCH	NKK SWITCH	DIGIKEY	HP0215AFKP2-ND
13	1	U1	PT2387 SOIC8	PRINCETON TECH CORP	DIGIKEY	ALIEXPRESS