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| Princeton Technology Corp. 4-Channel Input Audio Processor IC Description Tel : 886-2-29162151 Fax : 886-2-29174598 URL: http://www.princeton.com.tw PT2314 PT2314 is a four-channel input digital audio processor utilizing CMOS Technology. Volume, Bass, Treble and Balance are incorporated into a single chip. Loudness Function and Selectable Input Gain are also provided to build a highly effective electronic audio processor having the highest performance and reliability with the least external components. All functions are programmable using the I2C Bus. The pin assignments and application circuit are optimized for easy PCB layout and cost saving advantage for audio application. Features ! ! ! ! ! ! ! ! ! ! ! ! ! CMOS Technology Least External Components Treble and Bass Control Loudness Function 4 Stereo Inputs with Selectable Input Gain Input/Output for External Noise Reduction System/Equalizer 2 Independent Speaker Controls for Balance Control Independent Mute Function Volume Control in 1.25 dB/step Low Distortion Low Noise and DC Stepping Controlled by I2C Bus Micro-Processor Interface Available in 28 Pins, DIP/SO Package Applications ! ! Car Stereo (Audio) Hi-Fi Audio System Note: Purchase of I2C Component of Princeton Technology Corporation (PTC) conveys a license under Philips I2C Patent Right to use these components in any I2C System, provided that the system conforms to the I2C Standard Specification defined by Philips PT2314 v1.1 Page 1 Revised March 1999 Princeton Technology Corp. 4-Channel Input Audio Processor IC Pin Configuration VDD AGND T R E B _L T R E B _R R IN ROUT LO U D _ R R IN 4 R IN 3 R IN 2 R IN 1 LO U D _ L LIN 4 LIN 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 Tel : 886-2-29162151 Fax : 886-2-29174598 URL: http://www.princeton.com.tw PT2314 REF CLK D ATA DGND O U T_ L O U T_ R BOUT_R B IN _ R BOUT_L B IN _ L LO U T LIN LIN 1 LIN 2 P T 23 14 Order Information Valid Part Number PT2314-D PT2314 Package Type 28 Pins, DIP (300 mil) 28 Pins, SO (300 mil) PT2314 v1.1 Page 2 Revised March 1999 Princeton Technology Corp. 4-Channel Input Audio Processor IC Application Circuit R2 5 .6 K C 11 2 .2 u MCU + C5 2 .2 u A M /F M Tu ner 25 +R 11 R IN 1 +R 1 6 L IN 1 26 27 18 LOUT 17 L IN 12 LO U D _L 20 BO U T_L C13 1 0 0n Tel : 886-2-29162151 Fax : 886-2-29174598 URL: http://www.princeton.com.tw PT2314 C16 1 0 0n C17 1 0 0n C19 2 .7 n 19 B IN _L 3 TR EB _L 10u C20 O U T_R 23 + D G N D D ATA C L K C 1 2 .2 u C 6 2.2 u+ R CD P lay er 10 +R 15 C 2 2 .2 u +R 9 Tape C 7 2 .2 u +R 1 4 L IN 3 C 3 2 .2 u +R 8 A ux C 8 2 .2 u + C 4 2 .2 u R 1 3 L IN 4 VDD 1 AGND 2 REF 28 + VDD 22u C9 ROUT 6 R IN 5 + 2 .2 u C10 1 0 0n C12 1 0 0n C14 1 0 0n C15 LO U D _R 7 B O U T_R 22 R IN 4 R IN 3 R IN 2 L IN 2 PT2314 21 10u C21 O U T_L 24 + B IN _ R TREB_R 4 2 .7 n C18 5 .6 K R1 Note: 1. It is suggested that you use Mylar Capacitor for capacitors, C12 ~ C19. 2. 3. Resistor ( R ) Range = 2.0 K Ohms to 3.6 K Ohms Recommended Value of Resistor ( R ) = 2.4 K Ohms PT2314 v1.1 Page 3 Revised March 1999 |
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