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PT2315E Stereo Audio Processor for Home TV Audio DESCRIPTION The PT2315E is an audio processor designed for versatile application, includes master volume control with low frequency loudness compensation, speaker output attenuator and tone control. It is a good solution for the home audio signal processing. Due to the high reliability requirement from the audio business, the PT2315E improves both audio performances and input surge current capability, these causes the PT2315E is the best solution for the cost-effective audio systems. FEATURES * Master volume from 0 dB to -78.75dB in 1.25dB/step * Speaker attenuator for balance, range from 0dB to -38.75dB in 1.25dB/step * Each channel output can be muted individually. * Low frequency loudness compensation * Bass and Treble control, range from -14dB to +14dB in 2dB/step * Wide operation range (VDD=4V to 10V) * Low harmonic distortion, low noise * Improved and replace PT2315 and PT2315A APPLICATIONS * * * Flat Panel TV Home Audio System Powered Speaker System BLOCK DIAGRAM Speaker Attenuator With Mute OUT_L OUT_R REF TREB_L BIN_L BOUT_L REF TREBLE Master Volume REF REF TREBLE TREB_R BIN_R BOUT_R BASS BASS LOUD_L LOUDNESS Loud SW INT Ref LOUDNESS LOUD_R LIN VDD RIN SCL REF REF BIAS I2C DECODER SDA DGND AGND Tel: 886-66296288Fax: 886-29174598 http://www.princeton.com.tw2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT2315E APPLICATION CIRCUIT PT2315E 1 REF VDD 22uF SCL 20 SDA 19 DGND 18 OUT_L 17 OUT_R 16 BOUT_R 15 BIN_R 14 BOUT_L 13 BIN_L 12 LIN 11 2 VDD 3 AGND MCU 2.7n 2.7n 4 TREB_L 5 TREB_R 6 RIN 7 LOUD_R 8 NC 9 LOUD_L 10 NC Left 10uF 10uF 100n 100n 100n 100n 5.6K Right Input Surge Protection L AUDIO 1 R 2.2K 2.2K 2.2uF 2.2uF 100n Power Amplifier 5.6K 100n V1.1 2 March 2010 PT2315E ORDER INFORMATION Valid Part Number PT2315E-S Package Type 20 Pins, SOP, 300mil Top Code PT2315E PIN CONFIGURATION REF 1 VDD 2 AGND 3 TREB_L 4 TREB_R 5 RIN 6 LOUD_R 7 NC 8 PT2315E 20 SCL 19 SDA 18 DGND 17 OUT_L 16 OUT_R 15 BOUT_R 14 BIN_R 13 BOUT_L 12 BIN_L 11 LIN LOUD_L 9 NC 10 V1.1 3 March 2010 PT2315E PIN DESCRIPTION Pin Name REF VDD AGND TREB_L TREB_R RIN LOUD_R NC LOUD_L NC LIN BIN_L BOUT_L BIN_R BOUT_R OUT_R OUT_L DGND SDA SCL I I O I O O O I I I I/O I I I I Description Analog reference voltage (1/2VDD) Supply input voltage Analog ground Left channel input for treble controller Right channel input for treble controller Right channel volume controller input Right channel loudness input No connect Left channel loudness input No connect Left channel volume controller input Left channel input for bass controller Left channel output for bass controller Right channel input for bass controller Right channel output for bass controller Right rear speaker output Left rear speaker output Digital ground I C data input I2C clock input 2 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 V1.1 4 March 2010 PT2315E IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.1 5 March 2010 |
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