LXE1722-150 EVALUATION BOARD USER GUIDE LXE1722-150 AUDIOMAX EVALUATION KIT USER’S GUIDE I N T E G R AT E D Copyright 2002 Rev. 0.2b, 2002-11-04 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 LXE1722-150 EVALUATION BOARD USER GUIDE LXE1722-150 Evaluation Board Quick Start Guide The LXE1722-150 Evaluation Board is a fully functional stereo class-D amplifier. Connection to a single power supply, two speakers, 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 x 2 into 2 ohm load (<1% THD+N). Board Setting 1. Power and Ground Connections: The terminal JP1 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. Speakers Connections: JP5 and JP6 are the speaker outputs. JP5 is for the left channel (CH1) and JP6 is for the right channel (CH2). Connect speaker “+” and “-“ to “LOUT+/ROUT+” and “LOUT-/ROUT-“ of JP5/JP6. 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: JP2, JP2A, RCA1 and RCA2 are the audio input connections. JP2/JP2A support differential audio inputs, and RCA1/RCA2 are for the single-ended audio inputs. When audio inputs are differential, the positive audio inputs are connected to LIN+/RIN+ pin, while the negative inputs are connected to LIN-/RIN- pin of the JP2/JP2A terminals. J1 and J2 jumpers are left open when using differential inputs. When audio inputs are single-ended, the inputs audio source can either be connected to terminal JP2/JP2A, or to RCA1/RCA2. In this single-ended connection, jumpers J1 and J2 must be closed so that the LIN-/RIN- audio inputs are connected to Ground. 4. SLEEP/MUTE Connections: JP4 is the jumper selection for ON/OFF of SLEEP and MUTE functions. To enable the amplifier, both jumpers should be set to “OFF” (SLEEP is OFF, and MUTE is OFF). 5. Pre-amp Output Connections: JP3 is the header for stereo, single-ended pre-amp outputs, “LPREOUT – GND – RPREOUT”. These outputs are provided to drive other crossover networks or to support additional power amplifiers such as for a Subwoofer speaker system. Copyright 2002 Rev. 0.2b, 2002-11-04 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2 LXE1722-150 EVALUATION BOARD USER GUIDE APPLICATION SCHEMATIC LISN R16 L6 SPL5028-100M JP1 LFBK+ Filter 1 1 Vcc 2 1 3 2 PGND Vcc 4 + C21 2200uF/25V Teminal 2 + C1 2200uF/25V CHOKE CM C2 0.1uF/25V 1 R6 0.010/1W 1 L100 FERRITE/SM Q1 RFP10P03L R8 5.1/1W Keep this trace as short as possible, directly from R6 pin Vcc Vcc C25 4700pF 1.21K 1% L1 LPWM+ LOUT+ LISN 15uH G1 chassis_gnd R24 5.6/1W C29 0.68uF/50V pgnd R9 5.1/1W C35 0.1uF/25V Q2 SUP70N03-09BP Filter 2 LFBKLFBK+ Cn Cn JP7 R20 15/1W PGND JP5 1 3 2 4 chassis_gnd C14 3300pF 1 2 Teminal 2 CHOKE CM Cpwm Clock U1 R1 1 HEADER 2 C7 100pF 2 3 C9 22pF 4 GND R5 49.9k 1% 5 RCA1 RCA JACK 1 R2 56.2k 1% C10 100pF 6 7 2 + C13 J1 JUMPER 1 2 1uF/10V,TANT 8 9 C8 0.1uF/25V 10 FB4 JP2 HEADER 2 1 2 LIN+ C3 0.47uF 11 LIN- 12 FB3 C4 C5 LINFB1 0.47uF 0.47uF 13 1 2 RIN+ 14 RIN- RIN- 15 FB2 C6 LPREOUT RPREOUT 0.47uF 16 17 18 2 19 1 J2 JUMPER 2 20 R3 56.2k 1% C12 100pF 21 22 JP3 3 2 1 C11 LPREOUT LFAOUT LFBK- CPWM LFBK+ RPWM LISN _LMUTE VDD LEAOUT CN LEAIN C17 40 LP+ V25 LP- LAMPOUT RP- RIN+ RP+ RIN- RN+ RAMPOUT PGND SLEEP CP STATUS PVDD _RMUTE NC REAIN RISN REAOUT RFBK+ RFAOUT RFBK- 4.7uF/25V,TANT Vcc C19 0.1uF/25V 38 LN+ LN- LPWM- 15uH R17 Q4 SUP70N03-09BP 37 LN+ 36 LP+ 35 LP- 34 LN- 33 RN- 32 RP- 31 RP+ 30 RN+ 2. PGND and GND plane is expected, they are devided by the center of LX1721 1.21K 1% C26 4700pF 3. Red heavy line means needing heavy duty trace or copper for high current R25 5.6/1W These traces keep as short as posible. 4. LPWM+,LPWM-,RPWM+,RPWM- MUST BE KEPT AS SHORT AS POSSIBLE. C15 3300pF 5. Chassis GND circles the whole board on both the top layer and bottom layer. R18 RFBK1.21K 1% PGND 29 C20 4.7uF/25V,TANT R12 5.1/1W C27 4700pF Q5 RFP10P03L 28 L3 RPWM- 27 26 C22 0.1uF/25V 15uH 25 Vcc Q6 SUP70N03-09BP 24 23 R26 5.6/1W C32 0.68uF/50V R21 15/1W C37 0.1uF/25V R13 5.1/1W Filter 3 C16 3300pF LX1722CDB R4 10k RPREOUT 1. Star connection is expected for PGND; LFBK- R11 5.1/1W 22pF GND C36 0.1uF/25V LOUT- 39 GND RN- C31 0.47uF/50V 41 CLOCK LIN- C30 0.68uF/50V L2 PGND 42 PGND LIN+ Q3 RFP10P03L 43 PVDD VREF R10 5.1/1W 44 + JP2A HEADER 2 RCA2 RCA JACK 1 Vcc 10k + 1 2 PGND JP6 1 3 2 4 chassis_gnd 1 2 Teminal 2 CHOKE CM HEADER 3 Cn Vcc RFBK+ RFBK- SLEEP _MUTE Q7 RFP10P03L C33 0.68uF/50V RPWM+ ROUT+ 15uH Q8 R19 SUP70N03-09BP R23 10k R7 0.010/1W RISN R15 5.1/1W 1 3 5 2 4 6 RFBK+ 1.21K 1% C28 4700pF RISN ON JP4 C38 0.1uF/25V Vcc R27 5.6/1W ON SLEEP OFF C34 0.47uF/50V L4 Keep this trace as short as possible, directly from R7 pin Vcc R22 10k R14 5.1/1W MUTE C18 3300pF OFF HEADER 3X2 GND GND PGND FIGURE 1 - LXE1722-150 SCHEMATIC Copyright 2002 Rev. 0.2b, 2002-11-04 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 3 LXE1722-150 EVALUATION BOARD USER GUIDE BILL OF MATERIALS MISCELLANEOUS COMPONENTS Line Item Part Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 IC, Controller IC, P – Channel MOSFET IC, N – Channel MOSFET Ferrite Bead Choke CM (EMI common mode) Printed Circuit Board Power Supply Choke Inductor, 15uH Phono Jack, 90° Nickel Plated, White Phono Jack, 90° Nickel Plated, Red Header, Str. .100” Center, 2Pos Header, Str. .100” Center, 3Pos Header, Double Row .100” Center, 6Pos Shorting Jumpers, Open Top, Black Terminal Block 2Pos 5mm Manufacturer & Part # LINFINITY INTERSIL VISHAY MURATA LX1722CDB RFP10P03L SUP70N03-09BP BLM41P102SGPT LINFINITY SGE2813-X2 SPL5028-100M ABRACON AIMT-103-15µH MOUSER 161-4214 MOUSER 161-4214 ANY 87220-2 ANY 87220-3 ANY 1/87215-2 MOUSER 151-8030 BLOCK MASTER 301-021-1000 Case QSOP 44 TO-220 TO-220 1206 Choke PCB Choke TH TH TH TH TH TH TH TH Reference Designators U1 Q1, Q3, Q5, Q7 Q2, Q4, Q6, Q8 L100 Filter1, Filter2, Filter3 Rev. X2 L6 L1, L2, L3, L4 RCA1 RCA2 J1, J2, JP2, JP2A, JP7 JP3 JP4 J1, J2 JP1, JP5, JP6 Qty 1 4 4 1 3 1 1 4 1 1 5 1 1 2 3 CAPACITORS Line Item Part Description 1 Capacitor, 22pF, 50V, 5% 2 Capacitor, 100pF, 50V, 5% 3 Capacitor, 100nF, 50V, 20% 4 Capacitor, 4700pF, 50V, 5% 5 Capacitor, Tant 1µF, 16V, 20% 6 Capacitor, Tant 4.7µF, 25V Manufacturer & Part # NOVACAP 0805N220J500NT AVX 08055C220JAT2A NOVACAP 0805N101J500NT AVX 08055C101JAT2A AVX 08055C104MAT2A NOVACAP 0805B104M500NT SAMSUNG CL21B104MBNC CALCHIP GMC21CG472J50NT KEMET T491A105M016AS AVX TAJA105M016R KEMET T491A475M016AS AVX TAJA475M016R Case Reference Designators Qty 0805 C9, C11 2 0805 C7, C10, C12 3 0805 C2, C8, C19, C22, C35, C36, C37, C38 8 0805 C25, C26, C27, C28 4 3216 C13 1 C17, C20 2 3216 7 Capacitor, 0.47µF, 50V, 5% PANASONIC ECQ-V1H474JL TH 8 9 Capacitor, 0.68µF, 50V Capacitor, 2200µF, 25V, 20% PANASONIC ECQ-V1H684JL PANASONIC EEU-FC1E222 TH TH C3, C4, C5, C6, C31, C34 C29, C30, C32, C33 C1, C21 6 4 2 RESISTORS Line Item Part Description 1 2 3 4 Resistor, 10K, 5%, 1/8W Resistor, 1.21K, 1%, 1/8W Resistor, 49.9K, 1%, 1/8W Resistor, 56.2K, 1%, 1/8W 5 Resistor, 5.1 Ohm, 5%, 1W 6 Resistor 15 Ohm, 5%, 1W 7 8 Resistor, 0.01 Ohm, 1W, 5% Resistor, 0 Ohm, 5% 0805 Manufacturer & Part # ASJ ASJ ASJ ASJ KOA ROHM KOA ROHM VISHAY ASJ CR21J103T CR21F1211T CR21F4992T CR21F5622T RM73B3A5R1J MCR100JZHJ5R1 RM73B3A150J MCR100JZHJ150 WSL2512R010FRE4 CR21J000T Case 0805 0805 0805 0805 Reference Designators Qty R1, R3, R22, R23 R16, R17, R18, R19 R5 R2, R4 R8, R9, R10, R11, R12, R13, R14, R15 4 4 1 2 2512 R20, R21 2 2512 0805 R6, R7 FB1, FB2, FB3, FB4 2 4 2512 8 Note: L6, Filter1/2/3 & R24/R25/R26/R27 are optional for EMI reduction. Copyright 2002 Rev. 0.2b, 2002-11-04 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 4 LXE1722-150 EVALUATION BOARD USER GUIDE BOARD LAYOUT FIGURE 2 - COMPONENTS LAYER LAYOUT Copyright 2002 Rev. 0.2b, 2002-11-04 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5 LXE1722-150 EVALUATION BOARD USER GUIDE BOARD LAYOUT (CONTINUED) FIGURE 3 – SOLDER LAYER LAYOUT Copyright 2002 Rev. 0.2b, 2002-11-04 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 6 LXE1722-150 EVALUATION BOARD USER GUIDE BOARD LAYOUT (CONTINUED) FIGURE 4 - LXE1722-150 COMPONENTS PLACEMENT 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 VCC=25V VCC=25V, Output Open Sleep, Status VCC = 25V RPWM,CPWM, Mute VCC = 25V LIN+, LIN-, RIN+, RIN- VIN VCC = 25V LPREOUT, RPREOUT VPRE VCC = 25V Clock Frequency FOSC VCC = 25V Copyright 2002 Rev. 0.2b, 2002-11-04 LX1722-150 Units Typ Max 25 V 12 A 200 mA VCC + -0.3 V 0.3 VCC + -0.3 V 0.3 VCC -0.3 V +0.3 VCC V -0.3 +0.3 250 330 500 KHz Min 7 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 7 LXE1722-150 EVALUATION BOARD USER GUIDE GRAPHS LINFINITY Microsem i LX1722 THD +N vs. Power 4O HM dx=-70.47 W 100 50 12/06/01 11:44:48 dy=-4.94659 % 20 10 5 4.96869 2 1 0.5 % 0.2 0.1 0.05 0.02 0.02209 0.01 0.005 0.002 0.001 100m 200m 500m 1 4.1 2 5 10 20 50 74.57 100 W C olor Line Style Thick D ata Axis C urs or1 C urs or2 C yan Green Solid Solid 2 2 Anlr.TH D +N R atio Anlr.TH D +N R atio Left Left *4.96869 % 4.79020 % *0.02209 % 0.02464 % 10H z ~ 22KH z BPF, f=1KH z, 25VD C , 4ohm load C yan -- C hannel 1; Green -- C hannel 2 thdvs pw r-4ohm -orig.at1 LINFINITY Microsem i LX1722 THD +N vs. Power 2O HM dx=-113.3 W 100 50 12/06/01 11:50:07 dy=-2.29138 % 20 10 5 2 2.32259 1 0.5 % 0.2 0.1 0.05 0.03121 0.02 0.01 0.005 0.002 0.001 100m 200m 500m 1.534 2 1 5 10 20 50 114.8 100 200 300 W C olor Line Style Thick D ata Axis C urs or1 C urs or2 C yan Green Solid Solid 2 2 Anlr.TH D +N R atio Anlr.TH D +N R atio Left Left *2.32259 % 2.15622 % *0.03121 % 0.03694 % 10H z ~ 22KH z BPF, 25VD C , 2ohm load, 1KH z C yan -- C H 1, 1KH z; Green -- C H 2, thdvs pw r-2ohm -orig.at1 Copyright 2002 Rev. 0.2b, 2002-11-04 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 8 LXE1722-150 EVALUATION BOARD USER GUIDE GRAPHS LINFINITY Microsem i LX1722 THD +N vs. Frequency 4O HM dx=-4.9248 kHz 100 12/06/01 11:54:23 dy=-0.09935 % 50 20 10 5 2 1 0.5 % 0.2 0.13419 0.1 0.05 0.03484 0.02 0.01 0.005 0.002 0.001 20 50 100.225 100 200 500 1k 2k 5.025k 5k 10k 20k Hz 10H z ~ 22KH z BPF, 4ohm load, 25VD C C yan -- C H 1; Green -- C H 2; ---- Pout=70W; R ed -- C H 1; Magenta -- C H 2; ---- Pout=10W; Blue -- C H 1; Yellow -- C H 2; ---- Pout=1W; thdvs freq_4ohm -orig.at1 LINFINITY Microsem i LX1722 THD+N vs. Frequency 2O HM dx=-6.2248 kHz 100 12/06/01 12:01:44 dy=-0.09067 % 50 20 10 5 2 1 0.5 % 0.2 0.1 0.11744 0.05 0.02677 0.02 0.01 0.005 0.002 0.001 20 50 100.225 100 200 500 1k 2k 5k 6.325k 10k 20k Hz 10H z ~ 22KH z BPF, 2ohm load, 25VD C C yan -- C H 1; Green -- C H 2; ---- Pout=1W; R ed -- C H 1; Magenta -- C H 2; ---- Pout=10W; Blue -- C H 1; Yellow -- C H 2; ---- Pout=110W; thdvs freq_2ohm .at1 Copyright 2002 Rev. 0.2b, 2002-11-04 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 9 LXE1722-150 EVALUATION BOARD USER GUIDE GRAPHS LINFINITY Microsemi LX1722 Frequency Response 4OHM dx=-19.816 kHz +10 12/06/01 12:02:54 dy=-1.223 dB +8 +6 +4 +2 d B r +0 -0.044 -1.267-2 -4 -6 -8 -10 10 19.35 20 50 100 200 500 1k 2k 5k 10k 19.835k 20k 50k 100k 200k Hz Color Line Style Thick Data Axis Curs or1 Curs or2 Cyan Green Solid Solid 2 2 Anlr.Am pl Anlr.Am pl Left Left *-0.044 dBr -0.188 dBr *-1.267 dBr -1.367 dBr 25VDC, 1W output, 10~80KHz BPF, 4ohm Load Cyan - CH1; Green - CH2 fr-80k.-4ohm .at1 LINFINITY Microsemi LX1722 Frequency Response 2OHM dx=-19.816 kHz +10 12/06/01 12:04:14 dy=+3.298 dB +8 +6 +4 +2 d B r +0 -1.3 -2 -4 -4.598 -6 -8 -10 10 19.35 20 50 100 200 500 1k 2k 5k 10k 19.835k 20k 50k 80k Hz Color Line Style Thick Data Axis Cursor1 Cursor2 Cyan Green Solid Solid 2 2 Anlr.Ampl Anlr.Ampl Left Left *-4.598 dBr -4.847 dBr *-1.300 dBr -1.399 dBr 25VDC, 1W output, 10~30KHz BPF, 2ohm Load Cyan - CH1; Green - CH2 fr-80k.-2ohm.at1 Copyright 2002 Rev. 0.2b, 2002-11-04 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 10