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| PT2033 2.1 Channel Audio Processor with Subwoofer Out DESCRIPTION The PT2033 is an audio processor designed for versatile application, it adopt good quality from it's successful predecessor PT2313L family and includes all functions of the PT2313L family such like 3 group input selector with internal gain, master volume control with low frequency loudness compensation, individual channel output volume adjust and tone control. If audio system designer wants to put an additional subwoofer into the design for more realistic and powerful deep bass, in traditional solution it needs to put a lot of external components and discrete OPAMP to consist a low pass filter for subwoofer driving signal; in the PT2033, just put 2 capacitor on board and finish. The PT2033 combine the low pass filter inside the audio processor and user may determine low pass corner frequency by the external capacitance. Broader supply range emphasis support to every application. FEATURES * * * * * * * * * * * * CMOS technology Controlled by IC interface 3 Stereo Inputs with gain selection. Input gain range, from 0dB to +11.25dB, 3.75dB per step 2 channels master volume: from 0 dB to -78.75dB, 1.25dB per step Built In stereo to mono mixer and lowpass filter for subwoofer output Subwoofer output volume : from 0dB to -37.5dB, 1.25dB per step Tone control (Bass and Treble): from -14dB to +14dB, 2dB per step Wide operation range( VDD from 4V to 10V ) Low harmonic distortion ( 0.002%, Vo=200mVrms ) Low noise and DC offset 32-pin DIP/SOP package APPLICATIONS * * * * TV Mini compo Multimedia speaker Audio docking system BLOCK DIAGRAM IGOL VOLL BASSL1 BASSL2 TREL Speaker OUTLF OUTLR SOUT SIN CIP CIN SWOUT INL1 Mute INL2 INL3 INL4 VDD Lch_REF 50K In-Gain Input Select Speaker Bass Volume L Treble Mute + - Rch_REF 40K SUBWOOFER Speaker REF 50K + - 25K Rch_REF + 25K GND INR1 INR2 INR3 INR4 Input Select 40K 20K Volume R Speaker - Mute Bass In-Gain Treble Mute Speaker Mute IGOR VOLR BASSR2 BASSR1 TRER OUTRF OUTRR C2 Tel: 886-66296288Fax: 886-29174598 http://www.princeton.com.tw2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan - + + Logic + - PT2033 APPLICATION CIRCUIT STANDARD APPLICATION CIRCUIT VDD 1 REF 2 INL1 3 INL2 4 INL3 5 IGOL VDD 32 INR1 31 INR2 30 INR3 29 IGOR 28 VOLR 27 LOUDR 26 BASSR1 25 BASSR2 24 TRER 23 ROUT 22 SWOUT 21 C2 20 C1N 19 C1P 18 DGND 17 IN1 IN2 IN3 10uF 1uF 1uF 1uF 2.2uF 1uF 10uF 1uF 1uF 1uF 2.2uF IN1 IN2 IN3 LEFT CHANNEL RIGHT CHANNEL 6 VOLL 7 LOUDL 1uF 100nF 100nF 8200pF 4.7uF C2 33nF 4.7uF 47K 47K ROUT SWOUT 5.6K 5.6K 100nF 100nF 8200p 8 BASSL1 9 BASSL2 10 TREL 11 LOUT LOUT 47K 4.7uF 2.2uF 12 SOUT 13 SIN 14 AGND SDA SCL 15 SCL 16 SDA C1 68nF LPF Fc=150Hz 2.1 CHANNEL SPEAKER SYSTEM (WIRING SIMPLIFIED) +5V 1 REF 2 INL1 3 INL2 4 INL3 5 IGOL 6 VOLL 7 LOUDL 8 BASSL1 9 BASSL2 10 TREL 11 LOUT 12 SOUT 13 SIN 14 AGND 15 SCL 16 SDA VDD 32 0.22uF INR1 31 INR2 30 INR3 29 IGOR 28 0.22uF VOLR 27 LOUDR 26 BASSR1 25 BASSR2 24 TRER 23 ROUT 22 SWOUT 21 C2 20 C1N 19 C1P 18 DGND 17 0.22uF 0.22uF 0.22uF 6 IN2P 7 MCLR 8 VDD 9 GND 10 SD 11 IN1P 12 IN1N GND2 19 VDD2 18 OUT2P 17 OUT1P 16 VDD1 15 GND1 14 OUT1N 13 SW SPEAKER R SPEAKER 0.22uF 2 IN3N 3 NC 4 NC 5 IN2N VDD3 23 GND3 22 OUT3N 21 OUT2N 20 L SPEAKER 1 IN3P OUT3P 24 PT2002 PT2033 V1.1 2 August, 2009 PT2033 ORDER INFORMATION Valid Part Number PT2033-S Package Type 32 Pins, SOP, 300mil Top Code PT2033-S PIN CONFIGURATION V1.1 3 August, 2009 PT2033 PIN DESCRIPTION Pin Name REF INL1 INL2 INL3 IGOL VOLL LOUDL BASSL1 BASSL2 TREL LOUT SOUT SIN AGND SCL SDA DGND C1P C1N C2 SWOUT OUTR TRER BASSR2 BASSR1 LOUDR VOLR IGOR INR3 INR2 INR1 VDD I/O I I I O I I I O I O O I I I I I I I O O I O I I I O I I I Description Analog reference voltage (1/2 VDD) Left channel input 1 Left channel input 2 Left channel input 3 Left channel buffer output Left channel volume controller input Capacitor node for left channel loudness Capacitor node 1st for left channel bass filter Capacitor node 2nd for left channel bass filter Capacitor node for left channel treble filter Left channel output L+R mixer (mono) output Low pass filter input Analog ground IC clock input IC data input Digital ground, connect with AGND in shortest route. Node P for low pass filter ext cap Node N for low pass filter ext cap 2nd node for low pass filter ext cap Subwoofer output Right channel output Capacitor node for right channel treble filter Capacitor node 2nd for right channel bass filter Capacitor node 1st for right channel bass filter Capacitor node for right channel loudness Right channel volume controller input Right channel buffer output Right channel input 3 Right channel input 2 Right channel input 1 Power supply Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 V1.1 4 August, 2009 PT2033 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 August, 2009 |
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