Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw MP3 Audio Decoder IC PT8402B DESCRIPTION The PT8402B is a single chip MPEG audio decoder capable of decoding all layers compressed elementary streams, as specified in MPEG 1 and MPEG 2 ISO standards, including the so called MP3. In additional to decoding function, this chip also include a high-performance D/A converter and headphone driver, so user can eliminate the need of external DAC and output circuit. With external A/D converter, it can also compress incoming signal by using ADPCM algorithm, therefore it can also playback ADPCM bitstream. FEATURES z z z z z z z z z z z Support all the sampling frequency of MPEG1 (32/44.1/48KHz), MPEG2(16/22.05/24KHz) and MPEG2.5(12/11.025/8KHz). Parallel/Serial bit stream input interface I2S/Normal audio data output format delivered via an serial bus Power save mode support DAC master clock (256*fs / 384*fs for 16 / 24 bit DAC) is supported Build-in DAC and headphone amp. Build-in Volume and Digital Equalizer Control Aux input for additional analog music source through AUXR and AUXL ports Bass Booster, 3D Sound. Low Operating Voltage, 2.5V. Available in 100 pins and 80 pins, TQFP and LQFP Package APPLICATIONS z z z z Portable MP3 player PDA CD/MP3 player All other MP3 applications. PT8402B V1.0 -1- June, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw MP3 Audio Decoder IC PT8402B NC GPIO1 GND TEST1 GPIO2 NC GPIO3 NC GPIO4 NC GPIO5 GND VCC NC GPIO6 NC DSPRDY GND CLKI VCC PWR_DWN NC /RST GND VCC PIN CONFIGURATION VCC GND GPIO0 NC GPIO15 NC GPIO14 NC VCC GND GPIO13 NC GPIO12 NC VCC GND GPIO11 NC GPIO10 NC GPIO9 NC GPIO8 VCC GND 1 2 3 P 100 99 98 97 96 I/O P I I/O P I/O 95 94 93 I/O 92 91 I/O 90 89 88 87 I/O P P 86 85 84 83 82 81 80 79 O P I P I I/O I/O 6 7 I/O 8 9 10 11 P P I/O 12 13 I/O PT8402B-100 14 15 16 17 P P I/O 18 19 I/O 20 21 I/O 22 23 24 25 I/O P P P P O I O 27 28 29 30 31 32 33 34 35 36 I 37 I I/O I/O P O P O O O P P I P 38 39 40 41 42 43 44 45 46 47 48 49 50 I 69 O I I P 68 P O P O 64 P O P I I 60 67 66 65 63 62 61 59 58 57 56 O I O I 55 O 51 54 53 52 LPF2L_IN LPF2L_OUT DACIN_L AUXL AVDD12 AVSS0 OUTL AVSS12 OUTR AVDD0 VREF2 AVDD12 AUXR DACin_R LPF2R_OUT LPF2R_IN LPF1R_OUT LPF1R_IN DACR NC PD_REQ NC VCC GND PD_ACK PD_ENA B_ENA1 VCC GND BD1 BCK1 MCLKIN IICC IICD VCC MCLKO GND ADQO ALRQO ACKO VCC GND TE DVDD 26 I P P I 77 76 I P P P 75 GND_PLL P 74 VCC_PLL P 73 DVSS O 72 DACL I 71 LPF1L_IN O 70 LPF1L_OUT 4 5 78 Figure 1. 100 Pin Assignment (P: Power pins, I/O: IO pins) PT8402B V1.0 -2- June, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT8402B GPIO1 GND TEST1 GPIO2 GPIO3 GPIO4 GPIO5 GND VCC GPIO6 DSPRDY GND CLKI VCC PWR_DWN NC /RST GND_PLL VCC_PLL DVSS MP3 Audio Decoder IC VCC 1 P GND 2 P GPIO0 3 I/O O 60 DACL GPIO15 4 I/O I 59 LPF1L_IN GPIO14 5 I/O O 58 LPF1L_OUT VCC 6 P I 57 LPF2L_IN GND 7 P O 56 LPF2L_OUT GPIO13 8 DACIN_L 9 I I 55 GPIO12 I/O I/O 54 AUXL VCC 10 P P 53 AVDD12 GND 11 P P 52 AVSS0 GPIO11 12 I/O O 51 OUTL GPIO10 13 I/O P 50 AVSS12 GPIO9 14 O 49 OUTR GPIO8 15 I/O I/O P 48 AVDD0 VCC 16 P O 47 VREF2 GND 17 P P 46 AVDD12 18 O O I 45 I 44 AUXR DACin_R I O 43 LPF2R_OUT I I/O I/O P O P O O O P P I P O I I 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40O 42 LPF2R_IN 41 LPF1R_OUT PD_REQ PD_ACK 19 PD_ENA 20 80 79 78 76 75 74 73 72 71 70 69 68 67 66 I/O P I I/O I/O I/O I/O P P I/O O P I P I 64 63 23 24 I 25 62 61 I P P P B_ENA1 VCC GND BD1 BCK1 MCLKIN IICC IICD VCC MCLKO GND ADQO ALRQO ACKO VCC GND TE DVDD DACR LPF1R_IN 22 65 PT8402B-80 I P P I 21 77 Figure 2. 80 Pin Assignment (P: Power pins, I/O: IO pins) PT8402B V1.0 -3- June, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw MP3 Audio Decoder IC PT8402B APPLICATION CIRCUIT Osc. PT8402B VREF2 Host µP Flash Memory 0.1µ LPF2L_IN LPF2R_IN /RST IICD IICC DATA_REQ BD1 B_ENA1 BCK1 DACR 10K LPF1R_IN ADC 10K 10K 100P 560P 2700P LPF1R_OUT MIC OP 10 µ 1µ ADI2 ALRI2 ACKI2 DACIN_R To headphone OUTR 220 µ DACL inL AUXL 10K LPF1L_IN 100K 10K 100P inR 10K 560P AUXR 2700P LPF1L_OUT 100K 1µ DACIN_L OUTL 220 µ To headphone Figure 3. PT8402B Typical Connection Diagram PT8402B V1.0 -4- June, 2005 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw MP3 Audio Decoder IC PT8402B ORDER INFORMATION Valid Part Number PT8402B-80LQ PT8402B-LQ PT8402B-TQ PT8402B V1.0 Package Type 80Pins, LQFP 100Pins, LQFP 100Pins, TQFP -5- Top Code PT8402B-80LQ PT8402B-LQ PT8402B-TQ June, 2005