LX1725ILQ Microsemi Analog Mixed Signal Group, LX1725ILQ Datasheet - Page 19

• Manufacturer Part Number: LX1725ILQ
• Description: IC AMP AUDIO 32W STER D 32MLPQ
• Manufacturer: Microsemi Analog Mixed Signal Group
• Series: AudioMAX™r
• Type: Class Dr

Specifications of LX1725ILQ

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 32W x 1 @ 8 Ohm; 16W x 2 @ 4 Ohm
• Voltage - Supply: 12 V ~ 35 V, ±6 V ~ 17.5 V
• Features: Depop, Differential Inputs, Mute, PWM, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Surface Mount
• Package / Case: 32-MLPQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Copyright © 2004
Rev. 1.2, 2005-12-06
Sychronize
Figure 18 – Application Schematic (Stereo, Single Supply)
VCOM
VCOM
VNEG
IN2P
IN2N
FLAG
VCOM
VPOS
IN1N
IN1P
Note: This design for Typical 4Ω load, other than 4Ω. Please refer to application
notes AN-35 to change L.C. value
150 - 220pF
TM
1µF 35V
1µF
1µF
1µF
1µF
50K
1
2
3
4
5
6
7
8
VPOSA
VCOMA
SYNC
FLAG
RILIM
VREF
COSC
VNEGA
VNEGA
9
32
10
31
11
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
30
LX1725
12
29
13
28
14
27
15
A P P L I C A T I O N S C H E M A T I C S ( C O N T I N U E D )
Sychronize
26
VPOS1
VNEG1
VNEG2
VPOS2
16
MASTER
VCOM
VCOM
VNEG
IN2N
OUT1
OUT2
IN2P
STBY
FLAG
VCOM
VCOM
25
VPOS
IN1N
IN1P
4.7µF
35V
Figure 20 – Application Schematic (BTL, Single Supply)
24
23
22
21
20
19
18
17
HIGAIN
+5V
150 - 220pF
VCOM
STBY
VNEG
1µF 35V
VPOS
VPOS
22µH
22µH
0.1µF
50V
50K
820nF
820nF
Integrated Products Division
2
3
4
5
6
8
1
7
1000µF
35V
VPOSA
VCOMA
SYNC
FLAG
RILIM
VREF
COSC
VNEGA
®
9
Master / Slave
MUTE / GAIN
Microsemi
32
10
VNEGA
31
VPOS
11
VNEG
30
LX1725
12
29
13
28
14
27
15
26
VPOS1
VNEG1
VNEG2
VPOS2
16
VCOM
MASTER
Figure 19 – Application Schematic (BTL, Split Supply)
OUT1
OUT2
Sychronize
STBY
25
VNEG
IN2P
IN2N
FLAG
4.7µF
VCOM
VPOS
35V
IN1N
IN1P
15W+15W Stereo Class-D Amplifier
24
23
22
21
20
19
18
17
HIGAIN
+5V
150 - 220pF
VCOM
Filterless 30W Mono in BTL
1µF 35V
VNEG
P
RODUCTION
50K
0.1µF
50V
1
2
3
4
5
6
7
8
STBY
VPOS
VPOS
MUTE / GAIN
Master / Slave
VNEGA
VPOSA
VCOMA
SYNC
FLAG
RILIM
VREF
COSC
VNEGA
9
1000µF
32
35V
10
31
11
VPOS
VNEG
30
LX1725
12
29
13
D
28
14
ATA
27
15
26
VPOS1
VNEG1
VNEG2
VPOS2
16
MASTER
OUT1
OUT2
STBY
25
S
4.7µF
35V
HEET
24
23
22
21
20
19
18
17
+5V
0.1µF
VCOM
0.1µF
50V
50V
VNEG
470µF
470µF
35V
35V
STBY
VPOS
VPOS
MUTE / GAIN
Master / Slave
LX1725
VPOS
VNEG
Page
19