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PDF LX1704 Data sheet ( Hoja de datos )
| Número de pieza | LX1704 | |
| Descripción | 2W Filter less Stereo Class-D Amplifier | |
| Fabricantes | Microsemi Corporation | |
| Logotipo |  |
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TM
LX1704
® 2W Filter less Stereo Class-D Amplifier
PRODUCTION DATA SHEET
DESCRIPTION
The LX1704 family represents a The LX1704 family provides very
new generation of a fully integrated low quiescent current consumption
audio stereo Class-D amplifier from through the use of a proprietary output
Microsemi. This CMOS stereo Class- modulation scheme. This technology
D amplifier series is optimized for low enables filterless operation in many
voltage, low power operation and applications. The part features on board,
minimum system cost. The products low Rdson, complementary output
are ideal for use in battery powered MOSFET’s that reduces the need for
applications where low power consumption external components.
is desirable such as: portable speakers, The LX1704 is offered in a small
DVDs, PMP, and other low power footprint, low profile, 4mm x 4mm 16-
systems.
pin MLPQ.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
PVDD
Speaker Out 1
VDD
IN1+
IN1-
PVSS1
OUT2-
VDD
PVDD2
LXP1a7rt04
IN1+
OUT2+
IN1- PVSS2
PVDD
Speaker Out 2
KEY FEATURES
No Output Filter Required
Low EMI Design
Low Quiescent Current: 4mA
Low Shutdown Current: 1µA
Wide Supply Voltage Range:
2.5 - 5.5 Volt
2W Output Power into 4Ω Load
with THD<1% @ 5.0V
THD+N as Low as 0.1%
Small Form Factor...16 pin
MLP Package Only 4 x 4mm
Built-in Clock Frequency
Built-in Feedback Loop, Keep
High Audio Fidelity
Fixed 20dB Gain
Full 20 - 20kHz Audio
Bandwidth
Shut-down Function
Internal Thermal Shutdown
High Efficiency: over 85%
through Modulation Scheme
and Class-D Operation
Built-in De-Pop Circuit
APPLICATIONS
Portable Speakers
Portable DVD
PMP / PMC
Notebook PC
IN2-
IN2+
ENABLE
PACKAGE ORDER INFO
Plastic MLPQ 4mm x 4mm
TA (°C) LQ 16-Pin
RoHS Compliant / Pb-free
0 to 70
LX1704CLQ
Note: Available in Tape & Reel. Append the letters “TR” to the
part number. (i.e. LX1704CLQ-TR)
Copyright © 2005
Rev. 1.2, 2006-10-11
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
1 page  
TM
VINP
VINN
VDD
VSS
LX1704
® 2W Filter less Stereo Class-D Amplifier
PRODUCTION DATA SHEET
SIMPLIFIED BLOCK DIAGRAM
Triangle
Wave
Generator
De-pop signal
ground
Generation
Dynamic
Pulse
Generation
LP
LP
LX1704
PVDD2
DRIVER
DRIVER
PVDD1
OUTP
OUTN
PVSS1
PVSS2
EN
Figure 1 – LX1704 Simplified Block Diagram (Half Circuit)
Copyright © 2005
Rev. 1.2, 2006-10-11
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
5 Page 
LX1704
TM ® 2W Filter less Stereo Class-D Amplifier
PRODUCTION DATA SHEET
PACKAGE DIMENSIONS
LQ
E
16-Pin MLPQ Plastic (4mm x 4mm EP / 114x114Cu Exposed Pad)
MILLIMETERS
D
b E2
Dim MIN MAX
L
A 0.80 1.00
A1 0 0.05
A3 0.18 0.30
D2 b 0.23 0.38
D 4.00 BSC
E 4.00 BSC
e 0.65 BSC
D2 2.55 2.80
E2 2.55 2.80
e
K
K 0.20
-
L 0.30 0.50
INCHES
MIN MAX
0.031 0.039
0 0.002
0.007 0.012
0.009 0.015
0.157 BSC
0.157 BSC
0.026 BSC
0.100 0.110
0.100 0.110
0.008
-
0.012 0.020
A1
A3
A or
Pin 1 Indicator
Note:
1. Dimensions do not include mold flash or protrusions; these
shall not exceed 0.155mm(.006”) on any side. Lead
dimension shall not include solder coverage.
Copyright © 2005
Rev. 1.2, 2006-10-11
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LX1704.PDF ] | |
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