LXE1710HV EVALUATION BOARD USER GUIDE LXE1710HV 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 Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1 LXE1710HV EVALUATION BOARD USER GUIDE LXE1710HV Evaluation Board Quick Start Guide The LXE1710HV Evaluation Board is a fully functional mono class-D amplifier. Connection to two 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 >360W into 4 ohm load (<1% THD+N). Board Setting 1. Power and Ground Connections: The terminal J6 is for the power supply connection. PVDD is connected to the positive polarity of the power supply (+10V ~ +12V); the +VB is connected to the positive polarity of the power supply (+50V~+60V); the GND is connected to the common negative polarity of this two power supplies. Please make sure your power supply polarity connection and supply voltage is correct before you start to evaluate the board. 2. Speaker Connection: J4 is speaker output. Connect speaker “+” and “-“ to “OUT+” and “OUT-“ of J4. This evaluation board is designed for 4 and 8 OHMS speaker load. For 2-OHM speakers, the Idc of output filter inductors should be changed to high current level. 3. Audio Input Connections: RCA1 and J1 are the audio input connections for different input connectors. Both are different inputs, but single-ended input is available, just be careful, if the input audio source GND is not connected to the evaluation board GND, close the JUMPER JP1. 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 J1 header. For RCA connector, just plug and play. 4. SLEEP/MUTE Connections: JP8 is the jumper selection for ON/OFF of the MUTE function, and JP7 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. 20Hz-300Hz Audio Bandwidth, less than ±0.5dB; Lowest THD+N <0.03% Typical (100Hz, 8 ohms); Maximum Efficiency > 90%; Output Power: 180W @8ohm, <1%THD+N; 270W @8ohm, 10%THD+N 360W @4ohm, <1%THD+N; 480W@4ohm, 10%THD+N; Differential Input To Minimize noise Effects; Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2 LXE1710HV EVALUATION BOARD USER GUIDE 1 APPLICATION SCHEMATIC G1 chassis_gnd 1 L100 FERRITE/SM GND PVDD PGND PVDD U1 GND C13 10uF/10V,TANT 2 3 4 RPWM 5 CPWM 6 + V25 R5 49.9k 1% C3 10uF/16V C7 150pF IN+ 7 + IN+ IN+ IN- 8 R44 10k C4 10uF/16V PVDD Cn JP7 SLEEP JUMPER 1 2 SLEEP 10 2 MUTE 11 1 JP8 JUMPER C20 0.22uF R4 56.2k 1% 9 12 13 C12 100pF 14 C11 22pF R3 10k Clock_out GND ISn N/C Cp 2.5ref VDD RPWM PVDD CPWM P+ AF_IN+ AF_INAF_OUT SLEEP Mute LX1710 N+ NPPGND Cn Status FBK- EA_IN FBK+ EA_OUT FA_OUT 28 27 26 Cp C14 4.7uF/25V,TANT + C8 10uF/10V,TANT VREF 25 24 C19 0.1uF/25V 23 C18 + 47uF/25V 22 N+ 21 N- 20 19 18 Cn C17 4.7uF/25V,TANT + 1 + Vref 17 16 15 CN FBKFBK+ *OPEN R14 10k RFB GND PGND R15 11k 2 RCA1 RCA JACK 1 IN+ J1 HEADER 2 1 LIN+ 2 LIN- R16 11k C5 0.047uF IN- JP1 JUMPER 1 2 FIGURE 1 - LXE1710HV SCHEMATIC (PAGE 1) Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 3 LXE1710HV EVALUATION BOARD USER GUIDE APPLICATION SCHEMATIC (CONTINUED) RF1 C46 4700pF 2.50K,1% R45 7.50k,1% +V R34 1.21k, 1% FBK+ R17 10/1W U2 9 10 11 12 13 14 15 16 Q17 IRF530N AHO 9 HO 10 VB VDD VS HIN 5 SD 4 LIN VCC VSS COM 16 LO L1 47uH AVB 4 3 L3 3.3uH OUT+ D1 1N4148 6 5 D3 1N4148 *OPEN 8 7 C33 0.1uF/100V C31 AVS 0.22UF/100V R18 15/1W Q18 IRF530N C35 D4 1.0uF/100V 1N4148 C50 0.22uF/100V *OPEN VCC 2 1 C36 BLO 0.68uF/100V *OPEN N+ IR2110 NU3 9 CN CN 10 11 12 13 14 15 16 VCC 9 HO 10 VB VDD VS HIN 5 SD 4 LIN VCC VSS COM 16 LO 8 BHO 7 BVB 6 C32 C27 0.1uF/25V D2 0.22UF/100V 4 BVS Teminal 2 8/1W *OPEN VCC +V 2 1 R19 10/1W Q19 IRF530N C37 0.1uF/100V D5 1N4148 *OPEN L2 47uH 7.50K,1% R52 R43 R20 15/1W 2.50K,1% L4 3.3uH OUT- 1.21K,1% C47 4700pF RF2 1 2 R23 IR2110 FBK- J4 + C28 47uF/25V 1N4148 5 3 Vcc Q20 IRF530N D6 1N4148 C39 *OPEN 1.0uF/100V C51 0.22uF/100V FIGURE 1 - LXE1710HV SCHEMATIC (PAGE 2) Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 4 LXE1710HV EVALUATION BOARD USER GUIDE APPLICATION SCHEMATIC (CONTINUED) +VB R21 +VB +V 0.030R, 1W Q21 2N3906 SLEEP Q23 R53 68,5% 3 R54 150k,5% BSS138 Q22 2N3906 1 R55 3.9k,5% 2 C52 1000p PGND R56 100k,5% +VB +VB + C23 0.1uF/100V C21 1000uF/100V J6 1 2 3 PGND C2 0.1uF/25V C1 Terminal 3 220uF/25V + PVDD D7 Vcc 1N4148 FIGURE 1 - LXE1710HV SCHEMATIC (PAGE 3) Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5 LXE1710HV 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 Supply Voltage PVDD +VB Quiescent Current Symbol PVDD +VB IQ Test Conditions Min 10 45 +VB = 60V, Output Open PVDD = 10V -0.3 RPWM,CPWM, Mute PVDD = 10V -0.3 VIN PVDD = 10V -0.3 LPREOUT, RPREOUT VPRE PVDD = 10V -0.3 Clock Frequency FOSC PVDD = 10V 200 Copyright 2000 Rev. 0.3, 2002-01-25 Max 12 60 70 Sleep, Status LIN+, LIN-, RIN+, RIN- LX1722 Typ Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 250 PVDD + 0.3 PVDD + 0.3 PVDD +0.3 PVDD +0.3 500 Units V V mA V V V V KHz Page 6 LXE1710HV EVALUATION BOARD USER GUIDE TEST RESULTS MICROSEMI CORP. LXE1710HV mono THD+N vs. Power 11/20/02 11:39:41 dx=-119.6 W 100 50 20 10 5 2 1 0.5 % 0.2 0.1 0.05 0.02 0.01 0.005 0.002 0.001 200m 500m 1 2 5 10 20 50 100 200 362.7 482.3 500 1k W Color Line Style Thick Data Axis Cursor1 Cursor2 Red Solid 3 Anlr.THD+N Ratio Left .. .. PVDD=10V; +VB=60V 4OHM Load, f=100Hz, 10Hz~22KHz BPF 1710-hv-thdvspwr-4ohm.#2.at1 THD+N vs Power (4Ω) MICROSEMI CORP. LXE1710HV mono THD+N vs. Power 11/20/02 11:48:56 dx=0.000 W 100 50 20 10 5 2 1 0.5 % 0.2 0.1 0.05 0.02 0.01 0.005 0.002 0.001 200m 500m 1 2 5 10 20 50 100 184.2 200 270.3 500 W Color Line Style Thick Data Axis Cursor1 Cursor2 Red Solid 3 Anlr.THD+N Ratio Left .. .. PVDD=10V; +VB=60V 8OHM Load, f=100Hz, 10Hz~22KHz BPF 1710-hv-thdvspwr-8ohm.#2.at1 8Ω Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 7 LXE1710HV EVALUATION BOARD USER GUIDE TEST RESULTS (CONTINUED) MICROSEMI CORP. LXE1710HV mono THD+N vs Freq. dx=48.2250 Hz 100 11/20/02 11:47:34 dy=-0.00881 % 50 20 10 5 2 1 0.5 % 0.2 0.1 0.06315 0.05 0.05435 0.02 0.01 0.005 0.002 0.001 10 3032.325 20 40 50 60 70 80.55 80 90 100 200 300 400 500 Hz Color Line Style Thick Data Axis Cursor1 Cursor2 Cyan Solid 3 Anlr.THD+N Ratio Left *0.06315 % *0.05435 % PVDD=10V, +VB=60V; 4OHM Load; Po=1W; 10Hz~22KHz BPF 1710-thdvsfreq-4ohm.#2.at1 THD+N vs Frequency (4Ω) MICROSEMI CORP. LXE1710HV mono THD+N vs Freq. dx=48.2250 Hz 100 11/20/02 11:50:53 dy=0.00026 % 50 20 10 5 2 1 0.5 % 0.2 0.1 0.06603 0.06577 0.05 0.02 0.01 0.005 0.002 0.001 10 3032.325 20 40 50 60 70 80.55 80 90 100 200 300 400 500 Hz Color Line Style Thick Data Axis Cursor1 Cursor2 Cyan Solid 3 Anlr.THD+N Ratio Left *0.06577 % *0.06603 % RPVDD=10V, +VB=60V; 8OHM Load; Po=1W; 10Hz~22KHz BPF 1710-thdvsfreq-8ohm.#2.at1 8Ω Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 8 LXE1710HV EVALUATION BOARD USER GUIDE TEST RESULTS (CONTINUED) MICROSEMI CORP. LXE1710HV mono Frequency Response dx=251.550 Hz +10 11/20/02 11:55:59 dy=-0.448 dB +9 +8 +7 +6 +5 +4 +3 +2 +1 d B r -0 -0.051 -0.499 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 10 18.2 20 50 100 200 269.75 500 1k 2k 3k Hz Color Line Style Thick Data Axis Cursor1 Cursor2 Blue Solid 3 Anlr.Ampl Left *-0.051 dBr *-0.499 dBr PVDD=10V, +VB=60V Po=1W, 0dB 1710-fr-30k.8ohm.#2.at1 Frequency Response LXE1710HV Efficiency 100% 90% 80% Efficiency(%) 70% 60% 8OHM 50% 4OHM 40% 30% 20% 10% 0% 0 50 100 150 200 Output Power(W) Efiiciency Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 9 LXE1710HV EVALUATION BOARD USER GUIDE BILL OF MATERIALS MISCELLANEOUS COMPONENTS Line Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Part Description Microsemi IC Controller Manufacturer & Part # MICROSEMI Diode 47µH 3.3µH LX1710 IR2110 1N4148 Case TSSOP IRF530N 2N3906 BSS138 Jumper Header Terminal 2 Terminal 3 Chassis Ferrite / SM RCA connector Reference Designators Qty U1 U2, U3 D1 – D7 L1, L2 L3, L4 Q17-Q20 Q21, Q22 Q23 JP1, JP, JP8 J1 J4 J6 G1 L100 RCA1 1 2 7 2 2 4 2 1 3 1 1 1 1 1 1 Reference Designators Qty CAPACITORS Line Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Part Description Part Description Case 220µF, 25V 0.1µF, 25V 10µF, 16V 0.047µF 150pF 10µF, 10V, Tantalum 22pF 100pF 4.7µF, 2%, Tantalum 47µF, 25V 0.22µF 1000µF, 100V 0.1µF, 100V 0.22µF, 100V 1.0µF, 100V 0.68µF, 100V 4700pF 1000pF C1 C2, C19, C27 C3, C4 C5 C7 C8, C13 C11 C12 C17, C14 C18, C28 C20 C21 C23, C33, C37 C31, C32, C50, C51 C35, C39 C36 C46, C47 C52 1 3 2 1 1 2 1 1 2 2 1 1 3 4 2 1 2 1 RESISTORS Line Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Part Description Part Description Case 2.50K, 1% 10K 56.2K, 1% 49.9K, 1% 11K 10/1W 15/1W 0.030R, 1W 8/1W 1.21K, 1% 7.50K, 1% 68Ohm, 5% 150K, 5% 3.9K, 5% 100K, 5% Copyright 2000 Rev. 0.3, 2002-01-25 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Reference Designators Qty RF1, RF2 R3, R14, R44 R4 R5 R15, R16 R17, R19 R18, R20 R21 R23 R34, R43 R45, R52 R53 R54 R55 R56 2 3 1 1 2 2 2 1 1 2 2 1 1 1 1 Page 10