AUDIOMAX 5.1 CHANNEL DVD CLASS-D AMPLIFIER EVALUATION BOARD USER’S GUIDE I N T E G R A T E D Copyright © 2002 Revision 1.3 P R O D U C T S LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE TABLE OF CONTENTS Board Settings......................................................................................................................................................................................... 3 System Specifications ............................................................................................................................................................................. 4 Schematic................................................................................................................................................................................................ 5 Bill of Materials...................................................................................................................................................................................... 9 Audio Measurements ............................................................................................................................................................................ 10 Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE LXE1722 6-CHANNEL EVALUATION BOARD FEATURES AND CIRCUIT DESCRIPTION RCA3 – Subwoofer channel audio source input, single-ended; RCA4 – Center channel audio source input, single-ended; RCA5 – Right channel audio source input, single-ended; RCA6 – Right surround channel audio source input, single-ended; The LXE1722 6-CH Evaluation Board is a fully functional 5.1 channel class-D amplifier designed to support surround sound (five channels plus subwoofer) applications. Connection to a single power supply, 6 speakers, and an audio source (such as a DVD player) is all that is required to begin evaluating the amplifier. Board Setting 1. Power and Ground connections: The terminal VIN is for the power supply connection, “+” is connected to the positive polarity of power supply or battery (+7V ~ +25V); “-“ 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: LS – Left Surround Channel speaker output, with +/- polarity; L – Left Channel speaker output, with +/polarity; S – Subwoofer speaker output, with +/polarity; C – Center channel speaker output, with +/- polarity; R – Right Channel speaker output, with +/polarity; RS – Right Surround speaker output, with +/- polarity; This evaluation board is designed for standard 4Ω speaker loads. If different impedance speakers are chosen, the output frequency response will not be optimized but can be easily modified to provide a flat frequency response. Please see application note AN16. 3. Audio input connections: RCA2 – Left Surround channel audio source input, single-ended; RCA1 – Left channel audio source input, single-ended; Copyright 2000 Rev. 1.3,2003-06-27 4. SLEEP/MUTE connections: The SLEEP/MUTE circuit (Figure 1) of the amplifier has been designed to provide two methods of control, a “manual” control using the jumpers and an “automatic” means using a Microcontroller. a. Jumper Method: Control SLEEP/MUTE through the SLEEP and MUTE header. This is achieved by setting the jumpers to the “OFF” position. Closing header pin 1 to pin 2 for SLEEP pulls the SLEEP/ control pin to VCC, thereby enabling the amplifier. Closing header pin 2 to pin 3 for MUTE pulls the MUTE control to ground, enabling the inputs. Reverse the jumper positions to “ON” to shut down or turn off the amp. The MUTE pin can be left open. b. CPU Method: Close SLEEP jumper to “OFF” position (pin1,2) and MUTE jumper to “ON” position. This ties the controls to the external SLEEP/MUTE circuit which can utilize a CPU for active power up/power down control. Connect pin 1 and pin 2 of jumper J1 to the GPIO (General Purpose Input/Output) pin of the Microcontroller. For the SLEEP control, Logic “High” will SLEEP the system, Logic “Low” to release; for MUTE control, Logic “LOW” will MUTE the system, and Logic “High” to release. A delay time should be followed to minimize pop noise, during turn on. After SLEEP is set HIGH (controller enabled), wait ~150msec before controlling MUTE to LOW (enable inputs). To turn off the system, MUTE should be pulled HIGH (disable inputs) and then control SLEEP to LOW. Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 3 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE SYSTEM SPECIFICATIONS Parameter Supply Voltage Idle Current Sleep Status Reference Voltage RPWM, CPWM, MUTE LIN + LIN -, RIN +, RIN LPREOUT, RPREOUT Clock Frequency Symbol VCC IQ VREF VIN VPRE FOSC Distortion THD+N Distortion @ 20Hz ~ 20KHz THD+N PO Maximum Output Power PO Frequency Response Noise Floor Copyright 2000 Rev. 1.3,2003-06-27 VN Test Conditions Min LX1722 6-ch Typ Max 7 VCC = 25V VCC = 25V VCC = 25V VCC = 25V VCC = 25V VCC = 25V VCC = 25V VCC = 25V, 4Ω Load, 10Hz ~ 22KHz BPF, PO= 1W, f = 1KHz VCC = 25V, 4Ω Load, 10Hz ~ 22KHz BPF, PO = 1W VCC = 25V, 4Ω Load, 1% THD+N @ 10~22K BPF, f = 1KHz VCC = 25V, 4Ω Load, 10% THD+N @ 10~22K BPF, f = 1KHz VCC = 25V, 2Ω Load, 1% THD+N @ 10~22K BPF, f = 1KHz, Subwoofer Only VCC = 25V, 2Ω Load, 1% THD+N @ 10~22K BPF, f =100Hz, Subwoofer Only VCC = 25V, 2Ω Load, 10% THD+N @ 10~22K BPF, f =1KHz, Subwoofer Only VCC = 25V, 2Ω Load, 10% THD+N @ 10~22K BPF, f =100Hz, Subwoofer Only VCC = 25V, 4Ω Load, 10Hz ~ 80KHz BPF, PO = 1W VCC = 25V, 4Ω Load, 10 ~ 22KHz BPF, Aweighted, no input 25 420 -0.3 5 -0.3 -0.3 -0.3 430 0.06 0.1 0.05 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Units V mA VCC+0.3 V V VREF+0.3 V VREF+0.3 V VREF+0.3 V KHz 0.25 % 0.4 % 60 W 85 W 105 W 105 W 150 W 150 W -0.5 dB 450 µVRMS Page 4 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE SCHEMATIC VCC R12 10K SLEEP_ON/OFF CPU SLEEP R13 Q15 MMBT2222A/SOT 10K R14 10k J1 1 2 CN TO CPU R5 10K MUTE_ON/OFF R15 Q16 MMBT2222A/SOT CPU MUTE 10K R16 10K SLEEP OFF 1 2 3 SLEEP_ON/OFF _SLEEP 1 2 3 MUTE_ON/OFF MUTE ON MUTE ON OFF VIN 1 2 VCC L100 Figure 1 – SLEEP/MUTE & DC IN Schematic Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE SCHEMATIC (CONTINUED) R11A R54 VCC SFBK+ 0.030R, 1W 1.21K, 1%, 1/8W C16A Q1 RFD10P03LSM R32 SYNCH 4700pF 5.1, 1206 U2 L5 R1A 1 LFAOUT LFBK- S+ 44 15uH SFBK- 10K C4 2 CPWM LFBK+ R33 43 SFBK+ 3 4 RPWM LISN LMUTE VDD 5 LEAOUT CN 40 LEAIN PVDD 7 + 9 VREF PGND CLOCK LN+ GND LP+ V25 LP- LIN+ LN- AMPCON C43 0.68uF 5.1, 1206 39 C42 0.47uF L6 C14A 8 CLOCK 2 Q3 RFD10P03LSM R34 4.7uF, 16V,TANT 6 1uF, 25V, 10%, TANT C8A TB3 1 C18A 100pF, 50V 56.2K, 1% C34 100nF, 50V 41 C10A R7A R50 15, 5%, 1W 42 + 34.8K,1% 22pF, 50V C41 0.68uF 5.1, 1206 R6 100pF, 50V C9A Q2 SUB70NO3-09BP 38 100nF, 50V + C1 + 2200uF C57 35V 47uF C25 100nF, 50V S- 15uH Q4 SUB70N03-09BP R35 37 R17A 5.1, 1206 SFBK1.21K, 1%, 1/8W 36 C17A C6A R2A 100nF C61 51K C3A .68uF 22pF C62 1 11 White 2 R8A 22K 12 13 .68uF C63 R9A RCA4 RCA JACK 1 2 R10A 22K C13A .68uF 22pF C64 LAMPOUT RP- 4700pF 34 R19A CNFBK+ 33 1.21K, 1%, 1/8W R37 32 Q9 RIN+ RP+ RIN- RN+ C22A 4 8 5.1, 1206 14 51K Red RN- LIN- 35 3 10 RCA3 RCA JACK 31 7 4700pF L7 CENTER_OUT+ 6 15 30 5 R36 15uH 2 .68uF 29 5.1, 1206 CP PVDD STATUS RMUTE NC 28 4.7uF, 16V,TANT 27 C46 0.68uF SI4558DY 15, 5%, 1W C58 47uF R4A RISN R39 26 Q10 AMPCON 4 8 5.1, 1206 6 REAOUT RFBK+ 24 CNFBK+ C12A C11A 22 22pF, 50V, 5%, COG RFAOUT RFBK- 23 CNFBK- R38 5.1, 1206 C27 100nF, 50V CENTER_OUT- 15uH 5 2 R18A SI4558DY CNFBK1.21K, 1%, 1/8W R3A 10K, 5%, 1/8W C45 0.68uF L8 C44 0.47uF 25 100pF, 50V, 5%, COG 21 1 2 1 56.2K, 1%, 1/8W REAIN 100nF, 50V 100nF 7 20 TB4 C26 R53 1 C20A + 19 _SLEEP + 18 MUTE PGND C19A 17 _SLEEP RAMPOUT 3 16 C21A 4700pF LX1722CDB 0.030R, 1W VCC R55 Figure 2 – Master Channel (Subwoofer/Center) Schematic Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 6 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE SCHEMATIC (CONTINUED) R11 R21 SB1FBK+ 0.030R, 1W 1.21K, 1%, 1/8W Q5 R23 C16 3 VCC 4 SYNCH 8 5.1, 1206 U1 7 1 2 LFAOUT LFBK- CPWM LFBK+ 44 6 SB1FBKR22 43 SB1FBK+ 5.1, 1206 C9 22pF, 50V 4 LISN LMUTE VDD CN 40 R25 PVDD + VREF PGND 7 38 + C2 + 2200uF C7 47uF 35V C36 C37 0.68uF, 50V 0.47uF, 50V C14 100nF L2 15uH 5 R24 2 8 CLOCK LN+ 37 5.1, 1206 R17 SI4558DY SB1FBK- 1 9 GND LP+ V25 LP- LIN+ LN- LIN- RN- LAMPOUT RP- 1.21K, 1%, 1/8W 36 C6 10 1 100nF, 50V R2 White C15 11 51K 2 R8 22K C3 .68uF, 50V 22pF C53 12 13 RCA1 RCA JACK 1 R10 22K C13 .68uF, 50V 22pF C55 34 R19 SB2FBK+ 33 1.21K, 1%, 1/8W R27 32 Q7 4 C22 4700pF 8 5.1, 1206 14 51K 2 White .68uF, 50V C54 R9 C17 4700pF 35 3 RCA2 RCA JACK RIN+ RP+ 31 7 L3 L+ 6 15 RIN- RN+ 30 15uH 5 R26 2 PGND 29 5.1, 1206 19 MUTE STATUS PVDD RMUTE NC + CP + _SLEEP 28 4.7uF, 16V, TANT 18 C39 0.68uF, 50V C20 100nF RISN 2 27 R30 26 Q8 R49 4 8 5.1, 1206 6 REAOUT RFBK+ 24 SB2FBK+ C12 C11 22 22pF, 50V, 5%, COG RFAOUT RFBK- 23 SB2FBK- L4 15, 5%, 1W R29 5.1, 1206 AMPCON C33 100nF, 50V L- 15uH 5 2 R18 SI4558DY SB2FBK1.21K, 1%, 1/8W R3 10K, 5%, 1/8W C38 0.68uF, 50V 25 100pF, 50V, 5%, COG 21 TB2 1 C56 47uF 1 R4 REAIN C32 100nF, 50V 7 20 C40 0.47uF, 50V SI4558DY 1 C19 17 _SLEEP RAMPOUT 3 16 .68uF, 50V 56.2K, 1%, 1/8W C24 100nF, 50V LS- 6 1uF, 25V, 10%, TANT CLOCK AMPCON 4 39 C8 7 Q6 5.1, 1206 4.7uF, 16V, TANT LEAIN TB1 1 8 56.2K, 1%, 1/8W 100pF, 50V 6 C23 100nF, 50V 2 C18 LEAOUT R48 15, 5%, 1W 41 C10 5 C35 0.68uF, 50V SI4558DY 42 + R7 RPWM 5 2 1 3 LS+ 15uH 3 10K, 5%, 1/8W R1 4700pF L1 C21 4700pF LX1722CDB 0.030R, 1W VCC R20 Figure 3 – Slave A Channel (Left/Left Surround) Schematic Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 7 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE SCHEMATIC (CONTINUED) R11B R56 RFBK+ 0.030R, 1W 1.21K, 1%, 1/8W Q11 R41 3 VCC 4 7 1 2 SYNCH LFAOUT LFBK- CPWM LFBK+ 44 6 RFBKR40 43 RFBK+ 5.1, 1206 22pF, 50V, 5%, COG R7B 56.2K, 1%, 1/8W RPWM LISN LMUTE VDD C48 0.68uF SI4558DY C47 0.47uF TB5 C28 100nF, 50V 1 2 4 41 C10B CN C18B 5 CN LEAOUT 40 R43 PVDD LEAIN 7 PGND + VREF 4 39 7 C14B 100nF, 50V 38 C49 0.68uF 5.1, 1206 4.7uF, 16V, TANT 6 Q12 R51 15, 5%, 1W 8 100pF, 50V, 5%, COG 1uF, 25V, 10%, TANT C8B 5 2 42 + C9B R+ 15uH 1 3 L9 3 R1B 10K, 5%, 1/8W C16B 4700pF 8 5.1, 1206 U3 + C5 + 2200uF C59 35V 47uF 6 AMPCON C29 100nF, 50V L10 R15uH 5 R42 2 8 CLOCK LN+ GND LP+ V25 LP- LIN+ LN- LIN- RN- 37 5.1, 1206 R17B SI4558DY RFBK- 1 CLOCK 100nF, 50V, 20%, X7R C6B RCA5 RCA JACK R2B C65 51K C3B .68uF 22pF C66 1 Red 10 11 2 R8B 22K 12 13 RCA6 RCA JACK R9B .68uF C67 51K .68uF 1 R10B 22K C13B 22pF RP- C17B 4700pF 35 34 R19B RSFBK+ 33 1.21K, 1%, 1/8W R45 32 Q13 4 15 C68 RIN+ RP+ RIN- RN+ C22B 4700pF 8 5.1, 1206 14 2 Red LAMPOUT 1.21K, 1%, 1/8W 36 3 9 31 7 L11 6 15uH 5 R44 2 .68uF PGND 29 5.1, 1206 STATUS PVDD 19 MUTE RMUTE NC + CP + _SLEEP 28 4.7uF, 16V,TANT 18 C50 0.68uF SI4558DY C20B 100nF R4B C11B RISN 2 27 R47 26 Q14 C51 0.47uF 4 8 5.1. 1206 6 REAOUT RFBK+ 24 RSFBK+ 100pF, 50V, 5%, COG 22 22pF, 50V, 5%, COG RFAOUT RFBK- 23 RSFBK- 100nF, 50V R46 5.1, 1206 RS_OUT15uH 5 2 R18B SI4558DY RSFBK1.21K, 1%, 1/8W R3B 10K, 5%, 1/8W L12 AMPCON C31 C52 0.68uF 25 C12B 21 TB6 1 C60 47uF 1 56.2K, 1%, 1/8W REAIN C30 100nF, 50V 7 20 R52 15, 5%, 1W 1 C19B 17 _SLEEP RAMPOUT 3 16 RS_OUT+ 30 C21B 4700pF LX1722CDB R57 VCC 0.030R, 1W Figure 4 – Slave B Channel (Right/Right Surround) Schematic Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 8 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE BILL OF MATERIALS MISCELLANEOUS COMPONENTS Line Item Part Description Manufacturer & Part # Case Reference Designators Qty QSOP44 U1, U2, U3 3 1 IC, Controller MICROSEMI LX1722CDB 2 Transistor, P-Channel 30V FET FAIRCHILD RFD10P03LSM TO-252 Q1, Q3 2 3 Transistor, N-Channel 30V FET VISHAY SILICONIX SUB70N03-09BP TO-263 Q2, Q4 2 4 N & P Channel MOSFET 30V VISHAY SILICONIX SI4558DY SO-8 Q5 – Q14 10 5 Transistor, NPN MOTOROLA MMBT2222A SOT-23 Q15, Q16 2 6 PCB MICROSEMI SGE2823 PCB Rev X2 1 7 Inductor, 15µH ISI RL622-150K TH L1 – L4, L7 – L12 10 8 Inductor, 22µH ABRACON AIMT-117-22µH TH L5, L6 2 9 Ferrite Bead 1000 Ω MURATA BLM41P102SGPT 1206 L100 1 10 Phono Jacks, 90° Nickel Plated, Wht MOUSER 161-4214 TH RCA1, RCA3, RCA5 3 11 Phono Jacks, 90° Nickel Plated, Red MOUSER 161-4214 TH RCA2, RCA4, RCA6 3 12 Header Straight, .1” Center, 2POS AMP 87220-2 TH J1 1 13 Header Straight, .1” Center 3POs AMP 87220-3 TH Sleep, Mute 2 14 Shorting Jumpers, Open Top, Black MOUSER 151-8030 TH J1, Sleep, Mute 3 15 Terminal Block 2POS 5mm BLOCK MASTER 301-021-1000 TH LS, L, S, C R, RS, VIN 7 Case Reference Designators Qty RESISTORS Line Item Part Description Manufacturer & Part # 1 Resistor 10K, 5%, 1/8W ASJ SAMSUNG CR21J103T RC2012J103CS 0805 R1, R1A, R1B, R3, R3A, R3B, R5, R12 – R16 12 2 Resistor 51K, 5%, 1/8W ASJ CR21J513T 0805 R2, R2A, R2B, R9, R9A, R9B 6 3 Resistor 22K, 5%, 1/8W ASJ CR21J223T 0805 R8, R8A, R8B, R10, R10A, R10B 6 4 Resistor 56.2K, 1%, 1/8W ASJ CR21F5622T 0805 R4, R4A, R4B, R7, R7A, R7B 6 5 Resistor 34.8K, 1% ASJ CR21F2382T 0805 R6 1 0805 R11, R11A, R11B, R17, R17A, R17B, R18, R18A, R18B, R19, R19A, R19B 12 2010 R20, R21, R54 –R57 6 1206 R22 – R27, R29, R30, R32 – R47 24 2512 R48 – R53 6 6 Resistor 1.21K, 1%, 1/8W 7 Resistor 0.025Ω 1W 5% 8 Resistor 5.1Ω, 5%, 1/4W 9 Resistor 15Ω, 5%, 1W Copyright 2000 Rev. 1.3,2003-06-27 ASJ SAMSUNG CR21F1211T RC1608F1211CS DALE IRC ASJ KOA PANASONIC SAMSUNG KOA ROHM WSL-2010-R025-1R86 LRF2010-01-R025-F CR32J5R1T RM73B2BT5R1J ERJ8GEYJ5R1V RC3216J5R1CS RM73B3A150J MCR100JZHJ150 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 9 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE CAPACITORS Line Item 1 Part Description Cap 2200µF, 25V, 20% Reference Designators Qty TH C1, C2, C5 3 0805N330J500NT 0805 12 0805 C3, C3A, C3B, C13, C13A, C13B C4, C10, C10A, C10B, C12, C12A, C12B Manufacturer & Part # PANASONIC EEU-FC1E222 2 Cap 22pF, 50V, 5%, COG NOVACAP 3 Cap 100pF, 50V, 5% COG NOVACAP 0805N101J500NT AVX NOVACAP SAMSUNG CALCHIP VENKEL PANASONIC NICHINCON KEMET AVX KEMET AVX 08055C104MAT2A 0805B104M500NT CL21B104MBNC GMC21CG472J50NT C0805COG500-472JNE ECA-1HM470 UVX1H470ME T491A105K025AS TAJA105K025R T491A475M016AS TAJA475M016R 4 Cap 100NF, 50V, 20%, X7R 5 Cap 4700pF, 25V, 5% 6 Cap 47µF, 50V, 20% ELECT 7 Cap 1µF, 25V, 10%, TANT 8 Cap 4.7µF, 16V, TANT Case 0805 21 0805 C16, C16A, C16B, C17, C17A, C17B, C21, C21A, C21B, C22, C22A, C22B 12 TH C7, C56 – C60 6 3216 C8, C8A, C8B 3 3216 C18, C18A, C18B, C19, C19A, C19B 6 C37, C40, C42, C44, C47, C51 C15, C35, C36, C38, C39, C41, C43, C45, C46, C48 – C50, C52 –C55, C61 – C68 C9, C9A, C9B, C11, C11A, C11B 6 9 Cap 0.47µF, 50V, through PANASONIC ECQ-V1H474JL TH 10 Cap 0.68µF, 50V, through PANASONIC ECQ-V1H684JL TH 11 Cap, COG, 22pF, 50V, 5% NOVACAP 0805N220J500NT Copyright 2000 Rev. 1.3,2003-06-27 7 C6, C6A, C6B, C14, C14A, C14B, C20, C20A, C20B, C23 – C34 0805 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 24 6 Page 10 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE AUDIO MEASUREMENTS A. THD+N VS. POWER 10Hz ~ 22KHz BPF, dx=0.000 W 100 25VDC, 4ohm load, Input signal f = 1KHz 10 Cyan-Left Surround; Green-Left; Red-Subwoofer; 1 Magenta-Center; Yellow-Right; % Blue-Right Surround 0.1 0.01 0.001 100m 500m 1.122 1 2 5 10 20 60.45 100 W d x=-102.7 W 100 d y =-0.76456 % 10Hz ~ 22KHz BPF, 25VDC, 2ohm load, Subwoofer Channel only 10 Cyan-f = 100Hz; Green-f = 1KHz; 1 0 .8 5 95 1 % 0.1 0 .0 9 49 5 0.01 0 .0 0 1 100m 1 2 . 21 9 4 5 10 20 5 01 0 4 . 38 0 0 W Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 11 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE AUDIO MEASUREMENTS (CONTINUED) B. THD+N VS. FREQUENCY 10HZ~22KHZ BPF; 4OHM LOAD; 25VDC d x=-4.9248 k H z 100 SUPPLY Channel Left & Left Surround d y =-0.51254 % 10 1 0.77103 % Cyan – Po = 1W, L Green – Po = 1W, LS Red – Po = 10W, L Magenta – Po = 10W, LS Blue – Po = 37W, L Yellow – Po = 37W, LS 0.25849 0.1 0.01 0.001 20 5 0 1 0 10 0. 202 52 0 0 500 1k 2k 5 . 052k5 k 20k Hz d x=-4.9248 kH z 100 d y=-0.26514 % Channel Subwoofer & Center Cyan – 10 % 1 0.54711 0.28198 0.1 Po = 1W, SW Green – Po = 1W, CTR Red – Po = 10W, SW Magenta – Po = 10W, CTR Blue – Po = 50W, SW Yellow – Po = 50W, CTR 0.01 0.001 20 5 01 0100. 202250 0 500 1k 2 k 5 . 052k5 k 20k Hz Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 12 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE AUDIO MEASUREMENTS (CONTINUED) B. THD+N VS. FREQUENCY (CONTINUED) 10HZ~22KHZ BPF; 4OHM LOAD; 25VDC SUPPLY d x=-4 .9 2 4 8 k H z 100 d y =-1 .1 1 6 8 1 % Channel Right & Right Surround Cyan – 10 1 .4 2 2 4 1 % Po = 1W, R Green – Po = 1W, RS Red – Po = 10W, R Magenta – Po = 10W, RS Blue – Po = 37W, R Yellow – Po = 37W, RS 0 .3 0 5 6 0 .1 0.01 0.001 20 5 10 0 10 0. 202 5 500 1k 2 k 5 . 05 2k 5 k 2 0 k Hz C. FREQUENCY RESPONSE + 10 d x=-17.575 kH z d y=-0.501 d B 4ohm Load; 25VDC supply; 0dB = Po=1W (Vo = 2V) +8 +6 +4 d B r 80KHz LPF +2 +0 -0 -0 .. 1 68 84 5 -2 Cyan – Left Surround Green – Left Yellow – Subwoofer Blue – Center Magenta – Right Surround Red – Right -4 -6 -8 -1 0 1 01 7 .2005 50 100 500 1k 2k 5 k 1107k. 53902k5 k Hz Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 13 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE AUDIO MEASUREMENTS (CONTINUED) D. NOISE FLOOR FFT +0 dx=-7.2904 kHz dy=+0.106 dB -10 -20 -30 -40 -50 -60 -70 d B r -80 -90 -100 -100.345 -100.239 -110 -120 -130 -140 -150 20 50 100 200 500 1k 2k 5k 11.6588k 10k 18.9493k 20k Hz 10Hz ~ 22KHz =BPF, 4ohm Load; 25VDC supply; 0dB = Po=1W (Vo = 2V) Cyan – Left Surround Green – Left Yellow – Subwoofer Blue – Center Magenta – Right Surround Red – Right Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 14 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE PCB LAYOUT PCB LAYOUT Figure 5 – Components Layer (TOP) Layout Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 15 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE PCB LAYOUT (CONTINUED) Figure 6 – Solder Layer (BOTTOM) Layout Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 16 LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE PCB LAYOUT (CONTINUED) Figure 7 – Components Placement (Silkscreen) Layout Copyright 2000 Rev. 1.3,2003-06-27 Microsemi Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 17