LX1722-150EVALKIT [ETC]
AudioMAX Products ; AudioMAX产品\n
| 型号： | LX1722-150EVALKIT |
| 厂家： | 
ETC |
| 描述： | AudioMAX Products
|
| 文件： | 总10页 (文件大小：214K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LXE1722-150 EVALUATION BOARD
USER GUIDE
LXE1722-150 AUDIOMAX
EVALUATION KIT
USER’S GUIDE
I N T E G R A T E D P R O D U C T S
Copyright 2002
Rev. 0.2b, 2002-11-04
Microsemi
Integrated Products
Page 1
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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
Page 2
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
LXE1722-150 EVALUATION BOARD
USER GUIDE
APPLICATION SCHEMATIC
LISN
R16
L6
SPL5028-100M
LFBK+
JP 1
Filter 1
1
2
3
4
Vcc
Vcc
2
1
1.21K 1%
C25
4700pF
C21
2200uF/25V
C1
Q1
RFP10P03L
PGND
+
+
2200uF/25V
Teminal 2
C2
R8
5.1/1W
0.1uF/25V
CHOKE CM
Keep this trace as short as
possible, directly from R6
pin
L1
Vcc
Vcc
LPWM+
LOUT+
R6
LISN
0.010/1W
15uH
G1
L100 FERRITE/SM
ch assis_g nd
R24
R20
5.6/1W
C29
0.68uF/50V
15/1W
C35
0.1uF/25V
pgnd
R9
5.1/1W
Q2
SUP70N03-09BP
Filter 2
JP 5
1
2
3
4
LFBK-
LFBK+
1
2
PGND
ch assis_g nd
Cn
C14
3300pF
Cn
JP 7
Teminal 2
CHOKE CM
Cpwm
Clock
1
2
U1
Vcc
Q3
RFP10P03L
R1
C9
10k
R10
5.1/1W
C30
0.68uF/50V
C36
0.1uF/25V
1
2
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
C31
0.47uF/50V
LFAOUT
CPWM
RPWM
_LMUTE
LEAOUT
LEAIN
VREF
LFBK-
LFBK+
LISN
VDD
CN
HEADER
2
C7
100pF
L2
PGND
LPWM-
3
LOUT-
22pF
R5 49.9k 1%
4
C17
4.7uF/25V,TANT
Vcc
15uH
R17
5
Q4
SUP70N03-09BP
1. Star connection is expected for PGND;
LFBK-
RCA1
R2 56.2k 1%
C10
100pF
6
PVDD
PGND
LN+
RCA JACK
1
C19
R11
5.1/1W
1.21K 1%
2. PGND and GND plane is expected, they
are devided by the center of LX1721
0.1uF/25V
7
C26
4700pF
LN+
LP+
LP-
C13
1uF/10V,TANT
0.1uF/25V
8
R25
5.6/1W
3. Red heavy line means needing heavy
duty trace or copper for high current
CLOCK
GND
J1
JUMPER
2
9
LP+
1
C8
4. LPWM+,LPWM-,RPWM+,RPWM- MUST BE KEPT
AS SHORT AS POSSIBLE.
10
11
12
13
14
15
16
17
18
19
20
21
22
These traces keep as
short as posible.
V25
LP-
FB4
C3
0.47uF
C15
LN-
JP 2
HEADER
1
2
3300pF
5. Chassis GND circles the whole board
on both the top layer and bottom
layer.
LIN+
LN-
2
LIN-
RIN-
RN-
RP-
RP+
RN+
LIN+
LIN-
LIN-
RN-
FB3
FB1
R18
C4
C5
0.47uF
0.47uF
LAMPOUT
RIN+
RP-
RFBK-
1
2
RIN+
RIN-
RP+
1.21K 1%
C27
4700pF
RIN-
RN+
FB2
Q5
RFP10P03L
LPREOUT
RPREOUT
PGND
JP 2A
HEADER
RCA2
RCA JACK
1
C6
0.47uF
R12
5.1/1W
RAMPOUT
SLEEP
STATUS
_RMUTE
REAIN
PGND
CP
2
C20
4.7uF/25V,TANT
L3
RPWM-
PVDD
NC
C22
0.1uF/25V
J2
15uH
Vcc
JUMPER
2
RISN
RFBK+
RFBK-
1
R3 56.2k 1%
C12 100pF
Q6
R26
R21
SUP70N03-09BP
5.6/1W
C32
0.68uF/50V
15/1W
C37
0.1uF/25V
REAOUT
RFAOUT
R13
5.1/1W
JP 3
Filter 3
JP 6
C11
22pF
C16
3300pF
1
2
3
4
LPREOUT
3
2
1
1
2
PGND
ch assis_g nd
GND
LX1722CDB
R4 10k
RPREOUT
Teminal 2
CHOKE CM
HEADER
3
RFBK+
RFBK-
Q7
R14
5.1/1W
RFP10P03L
C33
0.68uF/50V
C38
0.1uF/25V
C34
0.47uF/50V
L4
Keep this trace as short as
possible, directly from R7
pin
RPWM+
ROUT+
15uH
Vcc
Vcc
Q8
R19
SUP70N03-09BP
RFBK+
RISN
RISN
R22
10k
R23
10k
R7
0.010/1W
R15
5.1/1W
1.21K 1%
C28
4700pF
R27
5.6/1W
JP 4
ON
ON
SLEEP
OFF
1
3
5
2
4
6
MUTE
OFF
C18
3300pF
HEADER 3X2
GND
GND
PGND
FIGURE 1 - LXE1722-150 SCHEMATIC
Copyright 2002
Rev. 0.2b, 2002-11-04
Microsemi
Page 3
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
LXE1722-150 EVALUATION BOARD
USER GUIDE
BILL OF MATERIALS
MISCELLANEOUS COMPONENTS
Line
Item
1
2
3
4
5
Reference
Part Description
Manufacturer & Part #
Case
Qty
Designators
U1
IC, Controller
LINFINITY LX1722CDB
INTERSIL RFP10P03L
QSOP 44
TO-220
TO-220
1206
1
4
4
1
3
Q1, Q3, Q5, Q7
Q2, Q4, Q6, Q8
L100
IC, P – Channel MOSFET
IC, N – Channel MOSFET
Ferrite Bead
VISHAY
SUP70N03-09BP
MURATA BLM41P102SGPT
Filter1, Filter2, Filter3
Choke CM (EMI common mode)
Choke
Rev. X2
6
Printed Circuit Board
LINFINITY SGE2813-X2
PCB
1
L6
L1, L2, L3, L4
RCA1
7
8
9
10
11
12
13
14
15
Power Supply Choke
Inductor, 15uH
SPL5028-100M
ABRACON AIMT-103-15µH
MOUSER 161-4214
Choke
TH
TH
TH
TH
TH
TH
TH
TH
1
4
1
1
5
1
1
2
3
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
RCA2
MOUSER 161-4214
J1, J2, JP2, JP2A, JP7
JP3
ANY
ANY
ANY
87220-2
87220-3
1/87215-2
JP4
J1, J2
MOUSER 151-8030
BLOCK MASTER 301-021-1000
JP1, JP5, JP6
CAPACITORS
Line
Item
Reference
Designators
Part Description
Manufacturer & Part #
Case
Qty
NOVACAP 0805N220J500NT
C9, C11
1
Capacitor, 22pF, 50V, 5%
Capacitor, 100pF, 50V, 5%
0805
0805
2
3
AVX
08055C220JAT2A
NOVACAP 0805N101J500NT
C7, C10, C12
2
AVX
AVX
08055C101JAT2A
08055C104MAT2A
C2, C8, C19, C22, C35,
C36, C37, C38
3
Capacitor, 100nF, 50V, 20%
NOVACAP 0805B104M500NT
SAMSUNG CL21B104MBNC
CALCHIP GMC21CG472J50NT
0805
8
C25, C26, C27, C28
C13
4
5
Capacitor, 4700pF, 50V, 5%
Capacitor, Tant 1µF, 16V, 20%
0805
3216
4
1
KEMET
AVX
KEMET
AVX
T491A105M016AS
TAJA105M016R
T491A475M016AS
TAJA475M016R
C17, C20
6
7
Capacitor, Tant 4.7µF, 25V
Capacitor, 0.47µF, 50V, 5%
3216
TH
2
6
C3, C4, C5, C6, C31,
C34
PANASONIC ECQ-V1H474JL
C29, C30, C32, C33
C1, C21
8
9
Capacitor, 0.68µF, 50V
Capacitor, 2200µF, 25V, 20%
PANASONIC ECQ-V1H684JL
PANASONIC EEU-FC1E222
TH
TH
4
2
RESISTORS
Line
Item
1
2
3
4
Reference
Part Description
Manufacturer & Part #
Case
Qty
Designators
R1, R3, R22, R23
R16, R17, R18, R19
R5
Resistor, 10K, 5%, 1/8W
Resistor, 1.21K, 1%, 1/8W
Resistor, 49.9K, 1%, 1/8W
Resistor, 56.2K, 1%, 1/8W
ASJ
CR21J103T
0805
0805
0805
0805
4
4
1
2
ASJ
CR21F1211T
ASJ
CR21F4992T
R2, R4
ASJ
CR21F5622T
KOA
ROHM
KOA
ROHM
RM73B3A5R1J
MCR100JZHJ5R1
RM73B3A150J
MCR100JZHJ150
R8, R9, R10, R11, R12,
R13, R14, R15
5
6
Resistor, 5.1 Ohm, 5%, 1W
Resistor 15 Ohm, 5%, 1W
2512
2512
8
2
R20, R21
R6, R7
7
8
Resistor, 0.01 Ohm, 1W, 5%
Resistor, 0 Ohm, 5% 0805
VISHAY WSL2512R010FRE4
ASJ CR21J000T
2512
0805
2
4
FB1, FB2, FB3, FB4
Note: L6, Filter1/2/3 & R24/R25/R26/R27 are optional for EMI reduction.
Copyright 2002
Rev. 0.2b, 2002-11-04
Microsemi
Page 4
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
LXE1722-150 EVALUATION BOARD
USER GUIDE
BOARD LAYOUT
FIGURE 2 - COMPONENTS LAYER LAYOUT
Copyright 2002
Rev. 0.2b, 2002-11-04
Microsemi
Integrated Products
Page 5
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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
Page 6
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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
LX1722-150
Typ
Parameter
Supply Voltage
Supply Current
Quiescent Current
Symbol
Test Conditions
Units
Min
Max
VCC
IDD
IQ
7
25
12
V
A
mA
VCC=25V
VCC=25V, Output Open
200
VCC +
0.3
VCC +
0.3
VCC
+0.3
VCC
+0.3
500
Sleep, Status
VCC = 25V
-0.3
-0.3
-0.3
V
V
V
RPWM,CPWM, Mute
LIN+, LIN-, RIN+, RIN-
VCC = 25V
VCC = 25V
VIN
LPREOUT, RPREOUT
Clock Frequency
VPRE VCC = 25V
FOSC VCC = 25V
-0.3
250
V
330
KHz
Copyright 2002
Rev. 0.2b, 2002-11-04
Microsemi
Page 7
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
LXE1722-150 EVALUATION BOARD
USER GUIDE
GRAPHS
LINFINITY Microsemi
LX1722 THD+N vs. Power
4OHM
12/06/01 11:44:48
dx=-70.47
W
dy=-4.94659 %
100
50
20
10
4.96869
2
1
0.5
%
0.2
0.1
0.05
0.02209
0.01
0.005
0.002
0.001
4.1
74.57
00
100m
200m
500m
1
2
5
10
20
50
W
Color
Line Style Thick Data
Axis
Cursor1
Cursor2
Cyan
Solid
2
2
Anlr.THD+N Ratio Left
Anlr.THD+N Ratio Left
*4.96869
4.79020
%
*0.02209
0.02464
%
Green Solid
%
%
10Hz ~ 22KHz BPF, f=1KHz, 25VDC, 4ohm load
Cyan -- Channel 1; Green -- Channel 2
thdvspwr-4ohm -orig.at1
LINFINITY Microsemi
LX1722 THD+N vs. Power
2OHM
12/06/01 11:50:07
dx=-113.3
W
dy=-2.29138 %
100
50
20
10
5
2.32259
1
0.5
%
0.2
0.1
0.05
0.03121
0.01
0.005
0.002
0.001
1.534
114.8
1
100m
200m
500m
1
2
5
10
20
50
200 300
W
Color
Line Style Thick Data
Axis
Cursor1
Cursor2
Cyan
Solid
2
2
Anlr.THD+N Ratio Left
Anlr.THD+N Ratio Left
*2.32259
2.15622
%
*0.03121
0.03694
%
Green Solid
%
%
10Hz ~ 22KHz BPF, 25VDC, 2ohm load, 1KHz
Cyan -- CH1, 1KHz; Green -- CH2,
thdvspwr-2ohm -orig.at1
Copyright 2002
Rev. 0.2b, 2002-11-04
Microsemi
Page 8
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
LXE1722-150 EVALUATION BOARD
USER GUIDE
GRAPHS
LINFINITY Microsemi
LX1722 THD+N vs. Frequency
4OHM
12/06/01 11:54:23
dx=-4.9248 kHz
100
dy=-0.09935 %
50
20
10
5
2
1
0.5
%
0.2
0.13419
0.05
0.03484
0.02
0.01
0.005
0.002
0.001
100.225
5.025k
20
50
200
500
1k
2k
10k
20k
Hz
10Hz ~ 22KHz BPF, 4ohm load, 25VDC
Cyan -- CH1; Green -- CH2; ---- Pout=70W;
Red -- CH1; Magenta -- CH2; ---- Pout=10W;
Blue -- CH1; Yellow -- CH2; ---- Pout=1W;
thdvsfreq_4ohm -orig.at1
LINFINITY Microsemi
LX1722 THD+N vs. Frequency
2OHM
12/06/01 12:01:44
dx=-6.2248 kHz
100
dy=-0.09067 %
50
20
10
5
2
1
0.5
%
0.2
0.11744
0.05
0.02677
0.01
0.005
0.002
0.001
100.225
6.325k
20
50
200
500
1k
2k
5k
10k
20k
Hz
10Hz ~ 22KHz BPF, 2ohm load, 25VDC
Cyan -- CH1; Green -- CH2; ---- Pout=1W;
Red -- CH1; Magenta -- CH2; ---- Pout=10W;
Blue -- CH1; Yellow -- CH2; ---- Pout=110W;
thdvsfreq_2ohm .at1
Copyright 2002
Rev. 0.2b, 2002-11-04
Microsemi
Page 9
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
LXE1722-150 EVALUATION BOARD
USER GUIDE
GRAPHS
LINFINITY Microsemi
LX1722 Frequency Response
4OHM
12/06/01 12:02:54
dx=-19.816 kHz
+10
dy=-1.223 dB
+8
+6
+4
+2
+
d
B
r
-0.044
-1.267
-4
-6
-8
-10
10
19.35
19.835k
50
100
200
500
1k
2k
5k
10k
50k
100k
200k
Hz
Color
Line Style Thick Data
Axis
Cursor1
Cursor2
Cyan
Solid
2
2
Anlr.Ampl Left
Anlr.Ampl Left
*-0.044 dBr *-1.267 dBr
-0.188 dBr -1.367 dBr
Green Solid
25VDC, 1W output, 10~80KHz BPF, 4ohm Load
Cyan - CH1; Green - CH2
fr-80k.-4ohm.at1
LINFINITY Microsemi
LX1722 Frequency Response
2OHM
12/06/01 12:04:14
dx=-19.816 kHz
+10
dy=+3.298 dB
+8
+6
+4
+2
+0
d
B
r
-1.3
-4
-4.598
-6
-8
-10
10
19.35
19.835k
50
100
200
500
1k
Hz
2k
5k
10k
50k 80k
Color
Line Style Thick Data
Axis
Cursor1
Cursor2
Cyan
Solid
2
2
Anlr.Ampl Left
Anlr.Ampl Left
*-4.598 dBr *-1.300 dBr
-4.847 dBr -1.399 dBr
Green Solid
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
Page 10
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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