5.1 CHANNEL AMPLIFIER

Copyright © 2002 Revision 1.3

AUDIOMAX 5.1 CHANNEL DVD CLASS-D AMPLIFIER EVALUATION BOARD USER’S GUIDE

I N T E G R A T E D P R O D U C T S

LXE1722 6-CHANNEL EVALUATION BOARD USER GUIDE

Microsemi Linfinity Microelectronics Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Copyright 2000 Rev. 1.3,2003-06-27

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

LXE1722 6-CHANNEL EVALUATION BOARD FEATURES AND CIRCUIT DESCRIPTION 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;

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;

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.




Copyright 2000 Rev. 1.3,2003-06-27

SYSTEM SPECIFICATIONS

LX1722 6-ch Parameter Symbol Test Conditions Min Typ Max Units

Supply Voltage VCC 7 25 V Idle Current IQ VCC = 25V 420 mA Sleep Status VCC = 25V -0.3 VCC+0.3 V Reference Voltage VREF VCC = 25V 5 V RPWM, CPWM, MUTE VCC = 25V -0.3 VREF+0.3 V LIN + LIN -, RIN +, RIN - VIN VCC = 25V -0.3 VREF+0.3 V LPREOUT, RPREOUT VPRE VCC = 25V -0.3 VREF+0.3 V Clock Frequency FOSC VCC = 25V 430 KHz

Distortion THD+N VCC = 25V, 4Ω Load, 10Hz ~ 22KHz BPF, PO= 1W, f = 1KHz 0.06 0.1 0.25 %

Distortion @ 20Hz ~ 20KHz THD+N VCC = 25V, 4Ω Load, 10Hz ~ 22KHz BPF, PO = 1W 0.05 0.4 %

VCC = 25V, 4Ω Load, 1% THD+N @ 10~22K BPF, f = 1KHz 60 W

PO

VCC = 25V, 4Ω Load, 10% THD+N @ 10~22K BPF, f = 1KHz 85 W

VCC = 25V, 2Ω Load, 1% THD+N @ 10~22K BPF, f = 1KHz, Subwoofer Only 105 W

VCC = 25V, 2Ω Load, 1% THD+N @ 10~22K BPF, f =100Hz, Subwoofer Only 105 W

VCC = 25V, 2Ω Load, 10% THD+N @ 10~22K BPF, f =1KHz, Subwoofer Only 150 W

Maximum Output Power

PO

VCC = 25V, 2Ω Load, 10% THD+N @ 10~22K BPF, f =100Hz, Subwoofer Only 150 W

Frequency Response VCC = 25V, 4Ω Load, 10Hz ~ 80KHz BPF, PO = 1W -0.5 dB

Noise Floor VN VCC = 25V, 4Ω Load, 10 ~ 22KHz BPF, A-weighted, no input 450 µVRMS




Copyright 2000 Rev. 1.3,2003-06-27

SCHEMATIC

OFF

SLEEP

123

MUTE

123

OFF

R1410k

R1210K

VCC

CPU SLEEP

CPU MUTER1610K

SLEEP_ON/OFF

MUTE_ON/OFF

Q15MMBT2222A/SOT

MUTE_ON/OFF

SLEEP_ON/OFF

R13

10K

MUTE

ON

CN

J1

12

_SLEEP

TO CPU

L100

R15

10K

VCC

VIN

12

Q16MMBT2222A/SOT

ON

R510K

Figure 1 – SLEEP/MUTE & DC IN Schematic




Copyright 2000 Rev. 1.3,2003-06-27

S C H E M A T I C ( C O N T I N U E D )

C460.68uF

C14A

100nF, 50V

CLOCK

R34

5.1, 1206

R55

0.030R, 1W

VCC

R5315, 5%, 1W

C410.68uF

R2A

51K

C440.47uF

CNFBK-

L6

15uH

TB4

AMPCON

1

2

CNFBK+

C420.47uF

C34100nF, 50V

C4

100pF, 50VR6

34.8K,1%

Red

R7A

56.2K, 1%

C11A

22pF, 50V, 5%, COG

R37

5.1, 1206

SI4558DY

Q9 34

7

1

2

8

6

5

R54

0.030R, 1W

C450.68uF

+ C12200uF35V

White

C430.68uF

R32

5.1, 1206

R19A

1.21K, 1%, 1/8W

C17A

4700pFC6A

100nF

C20A

100nF

MUTE

RCA3RCA JACK 1

2

R39

5.1, 1206

R11A

1.21K, 1%, 1/8W

+C5747uF

CENTER_OUT+

L7

15uH

R17A

1.21K, 1%, 1/8W

R9A

51K

C27100nF, 50V

RCA4RCA JACK

1

2

Q3RFD10P03LSM

S-

+

C18A

4.7uF, 16V,TANT

R10A22K

SFBK+

C10A

100pF, 50V

C9A 22pF, 50V

R35

5.1, 1206

CNFBK+

R33

5.1, 1206

C16A

4700pF

R8A22K

C22A

4700pF

R3A

10K, 5%, 1/8W

CENTER_OUT-

U2

LX1722CDB

2

3

14

15

13

18

1

16

12

11

4

5

6

7

8

9

10

17

19

20

21

22 23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

CPWM

RPWM

RIN+

RIN-

LAMPOUT

STATUS

LFAOUT

RAMPOUT

LIN-

LIN+

LMUTE

LEAOUT

LEAIN

VREF

CLOCK

GND

V25

_SLEEP

RMUTE

REAIN

REAOUT

RFAOUT RFBK-

RFBK+

RISN

NC

PVDD

CP

PGND

RN+

RP+

RP-

RN-

LN-

LP-

LP+

LN+

PGND

PVDD

CN

VDD

LISN

LFBK+

LFBK-

R36

5.1, 1206

C62

.68uF

Q2SUB70NO3-09BP

C25100nF, 50V

VCC

Q4SUB70N03-09BP

SFBK+

R38

5.1, 1206

C26

100nF, 50V

SFBK-

C61

.68uF

C13A22pF

Q1RFD10P03LSM

SFBK-

SYNCH

L8

15uH

C64

.68uF

R4A

56.2K, 1%, 1/8W

C3A22pF

C63

.68uF

R18A

1.21K, 1%, 1/8W

TB3

AMPCON

1

2

+ C5847uF

S+

+

C8A1uF, 25V, 10%, TANT

+

C19A

4.7uF, 16V,TANT

C21A4700pF

_SLEEP

SI4558DY

Q10 3

4

7

1

2

8

6

5

L5

15uH

CNFBK-

C12A

100pF, 50V, 5%, COG

R1A

10KR5015, 5%, 1W

Figure 2 – Master Channel (Subwoofer/Center) Schematic




Copyright 2000 Rev. 1.3,2003-06-27


R822K

+ C5647uF

L+

R4915, 5%, 1W

R4815, 5%, 1W

RCA2RCA JACK

1

2

VCC

C214700pF

R7

56.2K, 1%, 1/8W

SI4558DY

Q5 3

4

7

1

2

8

6

5

C1322pF

SB1FBK+

R9

51K

L3

15uH

RCA1RCA JACK

1

2

L2

15uH

R22

5.1, 1206

R21

0.030R, 1W

R11

1.21K, 1%, 1/8W

+

C8

1uF, 25V, 10%, TANT

R30

5.1, 1206

SI4558DY

Q8 3

4

7

1

2

8

6

5

SI4558DY

Q7 3

4

71

2

8

6

5

C14100nF

C32

100nF, 50V

R29

5.1, 1206

TB2

AMPCON

1

2

R4

56.2K, 1%, 1/8W

C370.47uF, 50V

VCC

R1022K

C20100nF

White

C55

.68uF, 50V

LS+R1 10K, 5%, 1/8W

R2

51K

C390.68uF, 50V

C24100nF, 50V

C12

100pF, 50V, 5%, COG

_SLEEP

R18

1.21K, 1%, 1/8W

White

R26

5.1, 1206

SB2FBK+

+

C19

4.7uF, 16V, TANT

SB2FBK-

C174700pF

SB2FBK-

+ C22200uF35V

R17

1.21K, 1%, 1/8W

C360.68uF, 50V

C23100nF, 50V

MUTE

C6

100nF, 50V

C54

.68uF, 50V

U1

LX1722CDB

2

3

14

15

13

18

1

16

12

11

4

5

6

7

8

9

10

17

19

20

21

22 23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

CPWM

RPWM

RIN+

RIN-

LAMPOUT

STATUS

LFAOUT

RAMPOUT

LIN-

LIN+

LMUTE

LEAOUT

LEAIN

VREF

CLOCK

GND

V25

_SLEEP

RMUTE

REAIN

REAOUT

RFAOUT RFBK-

RFBK+

RISN

NC

PVDD

CP

PGND

RN+

RP+

RP-

RN-

LN-

LP-

LP+

LN+

PGND

PVDD

CN

VDD

LISN

LFBK+

LFBK-

L1

15uH

+

C18

4.7uF, 16V, TANT

C33100nF, 50VL4

15uH

LS-

C400.47uF, 50V

C350.68uF, 50V

CLOCK

C322pF

C10

100pF, 50V

SYNCH

SB1FBK+

R23

5.1, 1206

SB2FBK+

C922pF, 50V

C53

.68uF, 50V

SB1FBK-

C15

.68uF, 50V

C11

22pF, 50V, 5%, COG

R27

5.1, 1206

C224700pF

R3

10K, 5%, 1/8W

R19

1.21K, 1%, 1/8W

SB1FBK-SI4558DY

Q6 3

4

7

1

2

8

6

5

R20

0.030R, 1W

L-

R25

5.1, 1206

R24

5.1, 1206

TB1

AMPCON

1

2

+C747uF

C380.68uF, 50V

C16

4700pF

Figure 3 – Slave A Channel (Left/Left Surround) Schematic




Copyright 2000 Rev. 1.3,2003-06-27


C30

100nF, 50V

R17B

1.21K, 1%, 1/8W

C520.68uF

R1B 10K, 5%, 1/8W

R47

5.1. 1206

RSFBK-

R5115, 5%, 1W

L12

15uH

C65

.68uF

R4B

56.2K, 1%, 1/8W

_SLEEP

R45

5.1, 1206L11

15uH

C68

.68uF

RS_OUT-

C66

.68uF

RSFBK+

C16B4700pF

C500.68uF

C480.68uF

C31100nF, 50V

+

C18B

4.7uF, 16V, TANT

C12B

100pF, 50V, 5%, COG

R7B 56.2K, 1%, 1/8W

C3B22pF

R44

5.1, 1206

R10B22K

RFBK-

C17B4700pF

R3B

10K, 5%, 1/8W

R19B

1.21K, 1%, 1/8W

R57

0.030R, 1W

MUTE

C14B100nF, 50V

+ C6047uF

C28100nF, 50V

CLOCK

C21B4700pF

C22B4700pF

RFBK-

VCC

C10B

100pF, 50V, 5%, COG

C13B22pF

R2B

51K

Red

R56

0.030R, 1W

R41

5.1, 1206L9

15uH

R9B

51K

R+

C6B100nF, 50V, 20%, X7R

RS_OUT+

C490.68uF

RCA6RCA JACK

1

2

R40

5.1, 1206SYNCH

R43

5.1, 1206

R5215, 5%, 1W

Red

+C52200uF35V

TB6

AMPCON

1

2

R-

C29100nF, 50V

+

C8B1uF, 25V, 10%, TANT

C11B

22pF, 50V, 5%, COG

VCC

RFBK+

SI4558DY

Q12 3

4

7

1

2

8

6

5

SI4558DY

Q14 3

4

7

1

2

8

6

5

C470.47uF

CN

+

C19B

4.7uF, 16V,TANT

RSFBK-

U3

LX1722CDB

2

3

14

15

13

18

1

16

12

11

4

5

6

7

8

9

10

17

19

20

21

22 23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

CPWM

RPWM

RIN+

RIN-

LAMPOUT

STATUS

LFAOUT

RAMPOUT

LIN-

LIN+

LMUTE

LEAOUT

LEAIN

VREF

CLOCK

GND

V25

_SLEEP

RMUTE

REAIN

REAOUT

RFAOUT RFBK-

RFBK+

RISN

NC

PVDD

CP

PGND

RN+

RP+

RP-

RN-

LN-

LP-

LP+

LN+

PGND

PVDD

CN

VDD

LISN

LFBK+

LFBK-

C20B100nF

L10

15uH+C5947uF

R46

5.1, 1206

RCA5RCA JACK

1

2

RFBK+

R42

5.1, 1206

R18B

1.21K, 1%, 1/8W

C67

.68uF

RSFBK+

TB5

AMPCON

1

2

R11B

1.21K, 1%, 1/8W

SI4558DY

Q13 34

7

1

2

8

6

5

C9B 22pF, 50V, 5%, COG

R8B22K

SI4558DY

Q11 3

4

7

1

2

8

6

5

C510.47uF

Figure 4 – Slave B Channel (Right/Right Surround) Schematic




Copyright 2000 Rev. 1.3,2003-06-27

BILL OF MATERIALS

M I S C E L L A N E O U S C O M P O N E N TS Line Item Part Description Manufacturer & Part # Case Reference

Designators Qty

1 IC, Controller MICROSEMI LX1722CDB QSOP44 U1, U2, U3 3

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

R E S IS TO R S Line Item Part Description Manufacturer & Part # Case Reference

Designators Qty

1 Resistor 10K, 5%, 1/8W ASJ CR21J103T SAMSUNG 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

6 Resistor 1.21K, 1%, 1/8W ASJ CR21F1211T SAMSUNG RC1608F1211CS 0805

R11, R11A, R11B, R17, R17A, R17B, R18, R18A, R18B, R19,

R19A, R19B 12

7 Resistor 0.025Ω 1W 5% DALE WSL-2010-R025-1R86 IRC LRF2010-01-R025-F 2010 R20, R21, R54 –R57 6

8 Resistor 5.1Ω, 5%, 1/4W

ASJ CR32J5R1T KOA RM73B2BT5R1J PANASONIC ERJ8GEYJ5R1V SAMSUNG RC3216J5R1CS

1206 R22 – R27, R29, R30, R32 – R47 24

9 Resistor 15Ω, 5%, 1W KOA RM73B3A150J ROHM MCR100JZHJ150 2512 R48 – R53 6




Copyright 2000 Rev. 1.3,2003-06-27

C A P A C I T O R S Line Item Part Description Manufacturer & Part # Case Reference

Designators Qty

1 Cap 2200µF, 25V, 20% PANASONIC EEU-FC1E222 TH C1, C2, C5 3

2 Cap 22pF, 50V, 5%, COG NOVACAP 0805N330J500NT 0805 C3, C3A, C3B, C13, C13A, C13B 12

3 Cap 100pF, 50V, 5% COG NOVACAP 0805N101J500NT 0805 C4, C10, C10A, C10B, C12, C12A, C12B 7

4 Cap 100NF, 50V, 20%, X7R AVX 08055C104MAT2A NOVACAP 0805B104M500NT SAMSUNG CL21B104MBNC

0805 C6, C6A, C6B, C14, C14A,

C14B, C20, C20A, C20B, C23 – C34

21

5 Cap 4700pF, 25V, 5% CALCHIP GMC21CG472J50NT VENKEL C0805COG500-472JNE 0805

C16, C16A, C16B, C17, C17A, C17B, C21, C21A, C21B, C22,

C22A, C22B 12

6 Cap 47µF, 50V, 20% ELECT PANASONIC ECA-1HM470 NICHINCON UVX1H470ME TH C7, C56 – C60 6

7 Cap 1µF, 25V, 10%, TANT KEMET T491A105K025AS AVX TAJA105K025R 3216 C8, C8A, C8B 3

8 Cap 4.7µF, 16V, TANT KEMET T491A475M016AS AVX TAJA475M016R 3216 C18, C18A, C18B, C19, C19A,

C19B 6

9 Cap 0.47µF, 50V, through PANASONIC ECQ-V1H474JL TH C37, C40, C42, C44, C47, C51 6

10 Cap 0.68µF, 50V, through PANASONIC ECQ-V1H684JL TH C15, C35, C36, C38, C39,

C41, C43, C45, C46, C48 – C50, C52 –C55, C61 – C68

24

11 Cap, COG, 22pF, 50V, 5% NOVACAP 0805N220J500NT 0805 C9, C9A, C9B, C11, C11A, C11B 6




Copyright 2000 Rev. 1.3,2003-06-27

AUDIO MEASUREMENTS

A . T H D + N V S . P O W E R

0.001

100

0.01

0.1

1

10

%

100m 100500m 1 2 5 10 20 60.451.122

W

dx=0.000 W

10Hz ~ 22KHz BPF, 25VDC, 4ohm load, Input signal f = 1KHz Cyan-Left Surround; Green-Left; Red-Subwoofer; Magenta-Center; Yellow-Right; Blue-Right Surround

0 . 0 0 1

1 0 0

0 . 0 1

0 . 1

1

1 0

0 . 8 5 9 5 1

0 . 0 9 4 9 5

%

1 0 0 m 3 0 01 2 5 1 0 2 0 5 01 0 4 . 82 . 1 9 4

W

d x=-102.7 W d y=-0.76456 %

10Hz ~ 22KHz BPF, 25VDC, 2ohm load, Subwoofer Channel only Cyan-f = 100Hz; Green-f = 1KHz;




Copyright 2000 Rev. 1.3,2003-06-27

A U D I O M E A S U R E M E N T S ( C O N T I N U E D )

B . T H D + N V S . F R E Q U E N C Y

1 0 H Z ~ 2 2 K H Z B P F ; 4 O H M L O A D ; 2 5 V D C S U P P L Y

0 .0 0 1

1 0 0

0 .0 1

0 .1

1

1 0

0 .7 7 1 0 3

0 .2 5 8 4 9%

2 0 2 0 k5 0 1 0 0 2 0 0 5 0 0 1 k 2 k 5 k5 .0 2 5 k1 0 0 .2 2 5

H z

dx=-4.9248 kH z dy=-0.51254 % Channel Left & Left Surround 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 .001

100

0.01

0 .1

1

10

0.547110.28198%

20 20k50 100 200 500 1k 2k 5k5 .025k100.225

H z

dx=-4.9248 kHz dy=-0.26514 % Channel Subwoofer & Center Cyan – Po = 1W, SW Green – Po = 1W, CTR Red – Po = 10W, SW Magenta – Po = 10W, CTR Blue – Po = 50W, SW Yellow – Po = 50W, CTR




Copyright 2000 Rev. 1.3,2003-06-27


B . T H D + N V S . F R E Q U E N C Y ( C O N T I N U E D )

1 0 H Z ~ 2 2 K H Z B P F ; 4 O H M L O A D ; 2 5 V D C S U P P L Y

0 . 0 0 1

1 0 0

0 . 0 1

0 . 1

1

1 0

1 . 4 2 2 4 1

0 . 3 0 5 6%

2 0 2 0 k5 0 1 0 0 5 0 0 1 k 2 k 5 k5 . 0 2 5 k1 0 0 . 2 2 5

H z

d x=-4.9248 k H z d y =-1.11681 % Channel Right & Right Surround

Cyan – Po = 1W, R Green – Po = 1W, RS Red – Po = 10W, R Magenta – Po = 10W, RS Blue – Po = 37W, R Yellow – Po = 37W, RS

C . F R E Q U E N C Y R E S P O N S E

-10

+ 10

-8

-6

-4

-2

+ 0

+ 2

+ 4

+ 6

+ 8

-0.184-0 .685

dBr

10 30k20 50 100 500 1k 2k 5k 10k17.5925k17.05

H z

dx=-17.575 kHz dy=-0.501 dB 80KHz LPF 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


D . N O I S E F L O O R F F T

-150

+0

-140

-130

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

-100.345-100.239

dBr

20 20k50 100 200 500 1k 2k 5k 10k 18.9493k11.6588k

Hz

dx=-7.2904 kHz dy=+0.106 dB

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

PCB LAYOUT P C B L A Y O U T

Figure 5 – Components Layer (TOP) Layout




Copyright 2000 Rev. 1.3,2003-06-27

P C B L A Y O U T ( C O N T I N U E D )

Figure 6 – Solder Layer (BOTTOM) Layout




Copyright 2000 Rev. 1.3,2003-06-27

P C B L A Y O U T ( C O N T I N U E D )

Figure 7 – Components Placement (Silkscreen) Layout

5.1 CHANNEL AMPLIFIER

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