LX1701 Datasheet PDF - Microsemi Corporation
| Part Number | LX1701 | |
| Description | 2W Filterless Mono Class-D Audio Amplifier | |
| Manufacturers | Microsemi Corporation | |
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LX1701
TM ® 2W Filterless Mono Class-D Audio Amplifier
PRODUCTION DATA SHEET
DESCRIPTION
The LX1701 family represents a The LX1701 family provides very
new generation of a fully integrated low quiescent current consumption
audio mono class-D amplifier from through the use of a proprietary output
Microsemi. This CMOS monolithic modulation scheme. This technology
class-D amplifier series is optimized enables filter-less operation in many
for low voltage, low power operation applications. The part features on board,
and minimum system cost. The low Rdson, complementary output
products are ideal for use in battery MOSFET’s that reduces the need for
powered applications where low external components.
power consumption is desirable such The LX1701 is offered in a small
as cell phones, PDA’s, web tablets footprint, low profile surface mountable
and other low power systems.
16-pin MLPQ package.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
PRODUCT HIGHLIGHT
PVDD
GAIN
INP
Audio
Input
INN
Gain
Decoder
+
_
VDD
De-POP
VDD
PVDD
Clock
PWM
H-Bridge
& Driver
LPF
LPF
OUTP
OUTN
VSS PVSS
LX1701
KEY FEATURES
No Output Filter Required
Low EMI Design
Low Quiescent Current: 2mA
Low Shutdown Current:1µA
Low And Wide Supply Voltage
Range: 1.8-6.0 Volt
2W Output Power Into 4Ω Load
With THD<1%
3W Into 2Ω With THD<1%
THD+N As Low As 0.09%
Small Form Factor: 16-pin MLPQ
Package: 4mmx4mm
-40 to +85°C Operating Range
Only 1 External Component
Needed, No Input AC Coupling
Capacitor Required, Under
Certain Conditions
Built-in Clock Frequency 200KHz
Built-in Feedback Loop, Allows
High Audio Fidelity
14dB/8dB Gain Selectable
20/300Hz Bandwidth Selectable
Shut-down Function
Internal Thermal Shut-down
High Efficiency: 85% Through
Modulation Scheme And Class-D
Operation
Built-in De-pop Circuit, No Turn
ON/OFF “POP” Noise
APPLICATIONS/BENEFITS
PDA's
Cell Phones
Portable Audio
Laptop Computer Speaker
Amplifier
LCD TV/Desktop Monitor
Speaker Amplifier
PC Audio Multimedia Amplifier
Copyright © 2004
Rev. 1.0a, 2004-07-09
PACKAGE ORDER INFO
TJ (°C)
-40 to 85
Bare Die
Plastic MLPQ
LQ 16-Pin
LX1701
LX1701CLQ
Note: Available in Tape & Reel. Append the letters “TR” to the part number.
(i.e. LX1701CLQTR)
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove CA. 92841 714-898-8121, FAX 714-893-2570
Page 1
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TM
GAIN
VINP
VINN
VDD
VSS
LX1701
® 2W Filterless Mono Class-D Audio Amplifier
PRODUCTION DATA SHEET
SIMPLIFIED BLOCK DIAGRAM
Triangle Wave
Generator
Gain
Decoder
Dynamic pulse
generator
Driver
Driver
De-pop ground
signal ground
generation
LPF
LPF
EN
OUTP
OUTN
PVSS
PVSS
PVDD
Figure 1 – LX1701 Simplified Block Diagram
PVDD
Copyright © 2004
Rev. 1.0a, 2004-07-09
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove CA. 92841 714-898-8121, FAX 714-893-2570
Page 5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LX1701 electronic component. |
| Information | Total 20 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ LX1701.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| LX1701 | The function is 2W Filterless Mono Class-D Audio Amplifier. Microsemi Corporation | |
| LX1704 | The function is 2W Filter less Stereo Class-D Amplifier. Microsemi Corporation | |
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