LXE1711-100 EVALUATION BOARD USER GUIDE LXE1711-100 AUDIOMAX EVALUATION KIT USER’S GUIDE I N T E G R A T E D Copyright 2000 Rev. 0.3, 2002-01-25 P R O D U C T S Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1 LXE1711-100 EVALUATION BOARD USER GUIDE LXE1711-100 Evaluation Board Quick Start Guide The LXE1711-100 Evaluation Board is a fully functional mono class-D amplifier. Connection to a single power supply, one speaker, and an audio source is all that is required to begin evaluating the amplifier. The amplifier will support continuous output power levels up to >110W into 2 ohm load (<1% THD+N). Board Setting 1. Power and Ground Connections: The terminal TB1 is for the power supply connection. Vcc is connected to the positive polarity of the power supply or battery (+7V ~ +25V); the GND is connected to the negative polarity of the power supply or battery. Please make sure your power supply polarity connection and supply voltage is correct before you start to evaluate the board. 2. Speaker Connection: TB2 is speaker output. Connect speaker “+” and “-“ to “OUT+” and “OUT-“ of TB2. This evaluation board is designed for standard 4 ohm speaker loads. For different impedance speakers, the output filter values should be modified to optimize the output frequency response. Please see AudioMAX Design Resource (AN-16) for LC filter values. 3. Audio Input Connections: P1 and J1 are the audio input connections. P1 supports differential audio inputs, and J1 is for the single-ended audio inputs. When audio inputs are differential, the positive audio inputs are connected to IN+ pin, while the negative input is connected to IN- pin of the P1 terminal. P2 jumper is left open when using differential input. When audio inputs are single-ended, the inputs audio source can either be connected to terminal P1, or to J1. In this single-ended connection, jumpers P2 must be closed so that the IN- is connected to Ground. 4. SLEEP/MUTE Connections: P3 is the jumper selection for ON/OFF of the MUTE function, and P4 is the jumper for ON/OFF of the SLEEP function. To enable the amplifier, both jumpers should be set to “OFF” (SLEEP is OFF, default is left OPEN, and MUTE is OFF). Audio Performance 1. 2. 3. 4. 5. 6. 20Hz-20kHz Audio Bandwidth, less than ±1dB; THD+N <0.06% Typical (1Wrms, 1kHz, 4 ohms); Maximum Efficiency 85%-90%; Output Power: 60W @4ohm, <1%THD+N; 80W @4ohm, 10%THD+N 110W @2ohm, <1%THD+N; 150W@2ohm, 10%THD+N; PSRR: 70dB Typical ; Differential Input To Minimize noise Effects; Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2 LXE1711-100 EVALUATION BOARD USER GUIDE APPLICATION SCHEMATIC REVISIONS LTR L1 1.0uH TB1 DESCRIPTION X1 DATE 06/13/01 ORIG. ECN #180 RELEASED TO ENGINEERING R1 1 VCC IN C1 220uF 35V 2 GND 0.010 2W + C2 220uF 35V + 301-021-1000 R2 56.2K VCC_HI_CURRENT P5 1 OUT SYNC C4 1.0uF 35V 2 IN C3 1.0uF 35V 42375-2 C5 1.0uF 35V U1 P1 R3 49.9K 1 IN + 1 2 2 IN - 3 42375-2 4 J1 R4 1.00K 1 AUDIO IN 5 C7 100pF 6 7 2 R5 1.00K C9 3300pF C8 0.47uF 50V 8 9 C10 0.47uF 50V 10 11 P2 12 1 IN - 13 2 GND 42375-2 14 P3 1 3 42375-3 ISn GND Cp N/C 2.5ref VDD RPWM PVDD CPWM P+ AF_IN+ N+ AF_IN- LX1711 NP- AF_OUT SLEEP PGND Mute Cn Status FBK- EA_IN FBK+ EA_OUT FA_OUT 28 27 C6 1.0uF 35V 26 25 POS_HI_DRIVE 24 23 POS_LO_DRIVE 22 21 NEG_LO_DRIVE 20 19 18 17 NEG_HI_DRIVE C11 1.0uF 35V 16 +5V_REG 15 P4 OFF 2 Clock_out VREF R6 24.3K 1 ON R7 SLEEP MUTE ON OFF C12 FDBK - R8 2 R9 24.3K 56.2K 150pF 10.0K FDBK + 3 C13 18pF 42375-3 C14 220pF C15 220pF COMMON GROUND POINT LINFINITY MICROELECTRONICS Drawn By Title Checked By SCHEMATIC, LX1711 100 WATT AUDIO AMPL EVALUATION BOARD Approved By Size Model No.: Approved By B Date: Drawing No: ES2806 LXEVB1711 - 100 Thursday, June 21, 2001 Sheet 1 FIGURE 1 - LXE1711-100 SCHEMATIC (PAGE 1) Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 3 of LXE1711-100 EVALUATION BOARD USER GUIDE APPLICATION SCHEMATIC REVISIONS LTR X1 DESCRIPTION ORIG. ECN #180 RELEASED TO ENGINEERING VCC_HI_CURRENT R10 Q1 NDS0605 R11 1.00K Q2 NDS0605 10.0 C25 1.0uF 50V R12 49.9 POS_HI_DRIVE Q3 C17 1.0uF C16 0.10uF VR2 1PMT4106 VR1 1PMT4104 R14 1.00K IRF5305 R15 R13 10.0 R33 20.0 Q4 Q5 BSS138 BSS138 10.0 R16 270 1W POS_OUT_UNFILTERED R17 Q6 NDS0605 Q7 NDS0605 R35 5.6 1W 10.0 POS_LO_DRIVE R18 10.0 R34 6.8 +5V_REG Q8 C26 3300pF IRLZ44N C18 0.10uF R19 49.9 R20 Q9 Q10 BSS138 BSS138 10.0 LINFINITY MICROELECTR Drawn By Title SCHEMATIC, LX1711 100 WATT A EVALUATION BOARD Checked By Approved By Size Approved By B Date: Drawing N Model No.: LXEVB1711 Thursday, June 21, 2001 FIGURE 1 - LXE1711-100 SCHEMATIC (PAGE 2) Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 4 ES28 Sheet 2 LXE1711-100 EVALUATION BOARD USER GUIDE APPLICATION SCHEMATIC REVISIONS LTR DESCRIPTION X1 ORIG. ECN #180 RELEASED TO ENGINEERING VCC_HI_CURRENT R21 Q11 NDS0605 R22 1.00K Q12 NDS0605 C27 1.0uF 50V 10.0 R23 49.9 NEG_HI_DRIVE Q13 C20 1.0uF C19 0.10uF VR4 1PMT4106 VR3 1PMT4104 IRF5305 R24 10.0 R25 1.00K R26 R36 20.0 Q14 Q15 BSS138 BSS138 10.0 R27 270 1W NEG_OUT_UNFILTERED R28 Q16 NDS0605 Q17 R38 NDS0605 10.0 5.6 1W NEG_LO_DRIVE R29 10.0 R37 6.8 +5V_REG C28 3300pF Q18 IRLZ44N C21 0.10uF R30 49.9 R31 Q19 Q20 BSS138 BSS138 10.0 LINFINITY MICROEL Drawn By Title SCHEMATIC, LX1711 100 EVALUATION BOARD Checked By Approved By Size Approved By B Date: Model No.: LXEVB1711 Thursday, June 21, 2001 FIGURE 1 - LXE1711-100 SCHEMATIC (PAGE 3) Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5 LXE1711-100 EVALUATION BOARD USER GUIDE APPLICATION SCHEMATIC REVISIONS LTR X1 DESCRIPTION D ORIG. ECN #180 RELEASED TO ENGINEERING 0 L2 10.5uH POS_OUT_UNFILTERED C22 1.0uF 50V FDBK+ R32 15 1W TB2 1 OUT+ 2 FDBKL3 10.5uH C23 1.0uF 50V C24 0.47uF 50V OUT301-021-1000 NEG_OUT_UNFILTERED LINFINITY MICROELECTRO Drawn By Title SCHEMATIC, LX1711 100 WATT AU EVALUATION BOARD Checked By Approved By Size Approved By B Date: Model No.: Drawing No LXEVB1711 Thursday, June 21, 2001 FIGURE 1 - LXE1711-100 SCHEMATIC (PAGE 4) Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 6 ES2806 Sheet 4 LXE1711-100 EVALUATION BOARD USER GUIDE ABSOLUTE MAXIMUM RATINGS Unless otherwise specified, the following specifications apply over the operating ambient temperature 0°C ≤ TA ≤ 70°C Parameter Symbol Supply Voltage Supply Current Quiescent Current VCC IDD IQ Test Conditions Min 7 VCC=25V VCC=25V, Output Open Max 25 8 200 Sleep, Status VCC = 25V -0.3 RPWM,CPWM, Mute VCC = 25V -0.3 LIN+, LIN-, RIN+, RIN- VIN VCC = 25V -0.3 LPREOUT, RPREOUT VPRE VCC = 25V -0.3 Clock Frequency FOSC VCC = 25V 250 Copyright 2000 Rev. 0.3, 2002-01-25 LX1722 Typ Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 330 VCC + 0.3 VCC + 0.3 VCC +0.3 VCC +0.3 500 Units V A mA V V V V KHz Page 7 LXE1711-100 EVALUATION BOARD USER GUIDE BILL OF MATERIALS MISCELLANEOUS COMPONENTS Line Item 1 2 2 4 5 6 7 8 9 10 11 12 13 14 Part Description IC, LX1711 Class D Audio Power Amplifier Inductor, 1.0uH SMD Power Inductor Inductor, 10.5uH SMD High Current Power Inductor Transistor, FET, NDS0605 SOT23 General Purpose P Channel Transistor, FET, IRF5305 TO220 Power P Channel Transistor, FET, BSS138 SOT23 General Purpose N Channel Transistor, FET, IRLZ44N TO220 Power N Channel Diode, Zener, 10V, 1 Watt, Diode, Zener, 12V, 1 Watt Jack, PCB Mount, RCA Phono Type Header, 2 Pin Header, 3 Pin Terminal Block, 2 Position Heatsink, TO-220 PCB Mount Manufacturer & Part # MICROSEMI POWERMITE POWERMITE Reference Designators Case LX1711CDB Qty L1 1 1 U1 L2, L3 2 Q1, Q2, Q6, Q7, Q11, Q12, Q16, Q17 8 Q3, Q13 2 Q4, Q5, Q9, Q10, Q14, Q15, Q19, Q20 8 Q8, Q18 2 VR1, VR3 2 2 1 3 2 2 4 1PMT4104 1PMT4106 VR2, VR4 J1 P1, P2, P5 P3, P4 TB1, TB2 HS1, HS2, HS3, HS4 CAPACITORS Line Item 1 2 3 4 5 6 7 8 9 10 Part Description Manufacturer & Part # Cap: Electrolytic, 220uF, 35 Volt, 20%, 10 x 12.5 Type Thru Hole Cap: Ceramic, 1.0uF, 35 Volt, 20%, SMD Cap: Ceramic, 100pF, 50 Volt, 5%, SMD Cap: Ceramic, 0.47uF, 50 Volt, 20%, SMD Cap: Ceramic, 3300pF, 50 Volt, 10%, SMD Cap: Ceramic, 150pF, 50 Volt, 5%, SMD Cap: Ceramic, 18pF, 50 Volt, 5%, SMD Cap: Ceramic, 220pF, 50 Volt, 5%, SMD Cap: Ceramic, 0.10uF, 50 Volt, 10%, SMD Cap: Ceramic, 1.0uF, 50V, 20% Case 1206 0603 1206 1206 0603 0603 0603 0805 1210 Reference Designators Qty C1, C2 2 C3, C4-C6, C11, C17, C20 7 1 3 3 1 1 2 4 4 C7 C8, C10, C24 C9, C26, C28 C12 C13 C14, C15 C16, C18, C19, C21 C22, C23, C25, C27 RESISTORS Line Item Part Description Manufacturer & Part # 1 2 3 4 5 6 Resistor, 0.01 Ohms, 2 Watt, 5% SMD Resistor, 56.2K Ohms, 1/10 Watt, 1% SMD Resistor, 49.9K Ohms, 1/10 Watt, 1% SMD Resistor, 1.00K Ohms, 1/10 Watt, 1% SMD Resistor, 24.3K Ohms, 1/10 Watt, 1% SMD Resistor, 10.0K Ohms, 1/10 Watt, 1% SMD 1225 0603 0603 0805 0603 0603 7 Resistor, 10.0 Ohms, 1/10 Watt, 1% SMD 0805 8 9 10 Resistor, 49.9 Ohms, 1/10 Watt, 1% SMD Resistor, 270 Ohms, 1 Watt, 5% SMD Resistor, 15 Ohms, 1 Watt, 5% SMD 0805 2512 2512 11 Resistor, 20.0 Ohms, 1/10 Watt, 1% SMD 12 Resistor, 6.8 Ohms, 1/10 Watt, 10% SMD 13 Resistor, 5.6 Ohms, 1 Watt, 10% SMD Copyright 2000 Rev. 0.3, 2002-01-25 Reference Designators Case Qty R1 R2, R7 R3 R4, R5, R11, R14, R22, R25 R6, R9 R8 R10, R13, R15, R17, R18, R20, R21, R24, R26, R28, R29, R31 R12, R19, R23, R30 1 2 1 6 2 1 12 R32 4 2 1 0805 R33, R36 2 0805 R34, R37 2 2512 R35, R38 2 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 R16, R27 Page 8