PT2358 9 Inputs, 7 Outputs Car Audio Processor DESCRIPTION FEATURES The PT2358 is a multiple inputs audio processor designed 2 for Car Audio purpose. Using I C interface controls all of the functions. Thanks for highly integration most of peripheral sub-circuits and components, it provides up to 9 inputs and equips outputs includes front, rear channel outputs. For highly enhanced audio performance and experience, PT2358 volume controller has Soft-Step function to eliminate click noise during volume step changes. Adjustable input gain, adaptive loudness, subwoofer filter, treble and bass tone control are all included. APPLICATIONS Car Audio Operation voltage 6~10V 7 single-ended stereo Inputs 1 quasi-differential (QD) input for AUX 1 fully-differential (FD) input for Bluetooth® audio module. Input gain from 0 ~+15dB in 1dB step Main volume gain from +15 to -79dB in 1dB step with Soft-Step function. Soft-Mute and Soft-Step function for preventing audible click during volume and sources changing. 1 subwoofer output with 3-band crossover frequency selection and gain from +15 to -79dB in 1dB step Tone Control (Bass and Treble): -15 to +15dB in 1dB step Loudness: gain from 0 to -15dB in 1dB step Mixing input with 50% mixing ratio for front speakers, gain from -79 to +15dB in 1dB step. 4 independent outputs for front and rear speakers, output gain from +15 to -79dB with 1dB step Controlled by I²C Interface Low Distortion and Low Noise 48-pin LQFP package Tel: 886-66296288‧Fax: 886-29174598‧http://www.princeton.com.tw‧2F, 233-1, Baociao Road, SindianDist.,New Taipei City 23145, Taiwan PT2358 BLOCK DIAGRAM MIXIN SE7L SE6L SE5L SE4L SE3L SE2L SE1L SDA SCL SE7R SE6R SE5R SE4R SE3R SE2R SE1R FDL+ FDL- FDL R L R L FDR QD FDRFDR+ QDL QDG QDR CONTROL GND VDD CREF REF REF REF REF IN GAIN REF IN GAIN POWER IN GAIN IN GAIN IGL IGR C1P RSW1 SOFT-MUTE C2 RSW2 LOUDNESS SOFT-MUTE VOL LDL L+R MIX LOUDNESS VOR LDR BL1 MASTER VOLUME FLAT LPF MASTER VOLUME BR1 BASS BASS TRL TREBLE BL2 TRR SIN TREBLE SOUT BR2 L-MIX ON R-MIX ON OUTLF OUTRF OUTLR OUTSW OUTRR August 2014 2 V1.0 PT2358 APPLICATION CIRCUIT VDD 9V OUTLF OUTLR 0.1uF OUTRR MIX IN 4.7uF 4.7uF 2.2uF 4.7uF 1uF 4.7uF 2.2uF SE7R 4.7uF 10uF MCU OUTRF 31 30 29 CREF VDD MIXIN OUTRF 25 32 GND OUTRR 26 33 SCL OUTLR 27 34 SDA OUTLF 28 35 SE7R SIN 22 SE5L C2 21 41 SE4R C1P 20 42 SE4L TRL 19 43 SE3R TRR 18 44 SE3L BR1 17 45 SE2R BR2 16 46 SE2L BL1 15 2.2uF 2.2uF PT2358 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 47 SE1R BL2 14 48 SE1L VOR 13 QDG QDL VOL IGL LDL LDR IGR 7 8 9 10 11 12 SE1L 6 2.2uF QDR SE1R SE5R 40 2.2uF 5 SE2L 39 4.7uF OUTSW 2.2uF 2.2uF FDL+ SE2R 23 4 SE3L SOUT FDL- SE3R OUTSW 24 3 SE4L SE6L FDR- SE4R 38 FDR+ SE5L SE6R 2 SE5R 37 2.2uF 1 SE6L 36 2.2uF SE6R SE7L SE7L 27nF 68nF 8.2nF 8.2nF 100nF 4.7K 100nF 100nF 4.7K 100nF 2.2nF 2.2uF FDR+ 2.2uF 47nF FDL- 2.2uF 47nF FDR- 2.2uF Bluetooth Audio Module 2.2uF FDL+ 2.2uF 2 1 3 V1.0 QDR QDG 2.2uF 2.2uF QDL 3 August 2014 PT2358 ORDER INFORMATION Valid Part Number PT2358 Package Type 48-Pin, LQFP Top Code PT2358-LQ V1.0 32 31 30 29 GND CREF VDD MIXIN OUTRF 25 33 SCL OUTRR 26 34 SDA OUTLR 27 35 SE7R OUTLF 28 36 SE7L PIN CONFIGURATION 37 SE6R OUTSW 24 38 SE6L SOUT 23 39 SE5R SIN 22 40 SE5L C2 21 41 SE4R C1P 20 42 SE4L TRL 19 43 SE3R TRR 18 44 SE3L BR1 17 45 SE2R BR2 16 46 SE2L BL1 15 47 SE1R BL2 14 48 SE1L VOR 13 FDR+ FDR- FDL- FDL+ QDR QDG QDL VOL IGL LDL LDR IGR 1 2 3 4 5 6 7 8 9 10 11 12 PT2358 4 August 2014 PT2358 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 Dist., New Taipei City 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.0 21 August 2014