Preliminary PT2830 10W Stereo Integrated Audio Amplifier DESCRIPTION FEATURES The PT2830 is an integrated audio amplifier design for the compact audio systems, max power output is up to 10W x 2 (VDD=12V, RL=8Ω). Utilizing exclusive, patented CLASS-D modulation circuit. Compare with traditional Class-AB structure, the benefit of the PT2830 are high efficiency, low heat dissipation and very low harmonic distortion. Thanks for highly integrated design, consist a complete audio amplifier system is easy and only needs few external components, no more complex PCB wiring and saving the PCB sizes. • • • • • • • • • • • • • APPLICATIONS • LCD TV • Docking speaker system • Other audio applications 10W/8Ω (THD=10%) x 2 output power 4 stereo sources input Volume, bass and treble control Audio line out for second power amplifier Built-in 5V regulator RF interference immunity 4 power amplifier voltage gain selectable External mute output Low harmonic distortion (0.05%), superior sound quality I2C bus controls Over current and temperature protection Low EMI emission 48 Pins, E-LQFP (thermal pad included) package BLOCK DIAGRAM LB2 LB1 LT LOUT INLP INLN INPUT SEL INL1 INL2 INL3 INL4 PVDD VOLUME BASS L-CH Power Amplifier TREBLE OUTLP OUTLN PGND PVDD PGND BYPASS 5VREG AGND SD Power Managment UV/OV/OC Thermal Protection 5V Reg OE SDA SCL DE-POP I2C MUOUT PVDD VOLUME INR1 INR2 INR3 INR4 BASS R-CH Power Amplifier TREBLE OUTRP OUTRN PGND INPUT SEL RB2 RB1 RT ROUT INRP INRN Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT2830 APPLICATION CIRCUIT C1 C10 R1 1u U1B 6L 4G IN2 5R C11 C17 R1 R2 R3 R4 R1 8.2K 13 14 15 16 17 18 19 20 21 22 23 24 R2 1u U1C 9L 7G IN3 8R C13 L3 1u C14 R3 C23 0.47u 1u U2A IN4 3L 1G 2R C15 L4 1u C16 1u R4 L4 L3 L2 L1 C22 820p RT INR1 INR2 INR3 INR4 OE INL4 INL3 INL2 INL1 LT LB2 C19 68n C20 R2 68n 8.2K U3 C32 470uF VDD 1uF 68n C18 C21 820p 1u C12 0.1u 68n L2 C31 10uF C28 1 2 L2 GND +12V Power 22uH 12 11 10 9 8 7 6 5 4 3 2 1 2R 1u 0.47uF RB2 RB1 ROUT INRP INRN BYPASS 5VREG AGND PGND PVDD OUTRP OUTRP 1G IN1 L1 C25 IC1 PT2830 PVDD PGND PGND PVDD OUTRN OUTRN OUTLN OUTLN PVDD PGND PGND PVDD 48 47 46 45 44 43 42 41 40 39 38 37 C5 0.47uF C29 0.1u U4 1 2 C26 10uF C6 0.47uF OUTR+ OUTR- R-SPK L3 22uH L4 22uH C30 0.1u LB1 LOUT INLP INLN DGND SDA SCL AGND MUOUT SD OUTLP OUTLP 3L C9 C24 2.2uF C27 10uF C7 0.47uF U5 1 2 C8 0.47uF 25 26 27 28 29 30 31 32 33 34 35 36 U1A 0.47uF C2 OUTLOUTL+ L-SPK L5 22uH C3 0.47uF C4 SD MUTE OUT SCL SDA 0.47uF PRE1.0 2 April 2011 PT2830 ORDER INFORMATION Valid Part Number PT2830-LQ Package Type 48 Pins, E-LQFP, 7 x 7mm Top Code PT2830-LQ OUTRP OUTRP PVDD PGND AGND 5VREG BYPASS INRN INRP ROUT RB1 RB2 PVDD PGND PGND PVDD OUTLN OUTLN OUTRN OUTRN PVDD PGND PGND PVDD LB2 LT INL1 INL2 INL3 INL4 OE INR4 INR3 INR2 INR1 RT 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 37 38 39 40 41 42 43 44 45 46 47 48 OUTLP OUTLP SD MUOUT AGND SCL SDA DGND INLN INLP LOUT LB1 36 35 34 33 32 31 30 29 28 27 26 25 PIN CONFIGURATION PRE1.0 3 April 2011 PT2830 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 PRE1.0 18 April 2011