PTC2314 Datasheet | PTC

Princeton Technology Corp. 4-Channel Input Audio Processor Description Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://.princeton..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 ponents. 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 r r r r r r r r r r r r r CMOS Technology Least External ponents 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 d B/step Low Distortion Low Noise and DC Stepping Controlled by I2C Bus Micro-Processor Interface Available in 28 Pins, DIP/SO Package Applications r Car Stereo (Audio) r Hi-Fi Audio System Note: Purchase of I2C ponent of Princeton Technology Corporation (PTC) conveys a license under Philips I2C Patent Right to use these ponents in any I2C System, provided that the system conforms to the I2C Standard Specification defined by Philips PT2314 v1.1 Page 1 Updated March 1999 Free Datasheet http://../ Princeton Technology Corp. 4-Channel Input Audio Processor Block Diagram LOUT LIN LOUD_L BOUT_L BIN_L TREBLE_L Tel : 886-2-29162151 Fax: 886-2-29174598 URL: http://.princeton..tw PT2314 RB LIN1 LIN2 LIN3 LIN4 RIN4 RIN3 RIN2 RIN1 LIN1 LIN2 LIN3 LIN4 RIN4 RIN3 RIN2 RIN1 Volume & Loudness Speaker ATT Treble OUT_R Mute RB Supply Input Selector & Gain Control Serial Bus Decoder & Latches CLK DATA DGND Volume & Loudness Bass Treble Speaker ATT OUT_L...