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參數(shù)資料
| 型號(hào)： | LX1705ILQ-TR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 8 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
| 封裝： | 5 X 5 MM, ROHS COMPLIANT, MLPQ-32 |
| 文件頁(yè)數(shù)： | 1/17頁(yè) |
| 文件大小： | 378K |
| 代理商： | LX1705ILQ-TR |
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LX1705
PRODUCTION DATA SHEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2007
Rev. 1.2, 2007-03-20
WWW
.Microse
m
i
.CO
M
8+8W Stereo Filterless Class-D Amplifier
TM
DESCRIPTION
The LX1705 is a fully integrated
stereo class-D CMOS audio amplifier.
optimized
for
highly
efficient
operation and minimum system cost.
The stereo BTL (Bridge-tied-load)
configuration uses 3-level PWM
modulation. This allows eliminating
the LC filter to reduce the system cost
and simplify the system design. The
LX1705 outputs 8W into each of two
channels
with
better
than
90%
efficiency.
The entire signal path
from input to output is differential to
reject any sources of common-mode
noise or distortion.
The part features on–board H-bridge
output stages with low RDSON. External
bootstrap capacitors are all that is
required to provide the gate drive to the
all-NFET output stage since on-board
bootstrap diodes are provided.
The LX1705 also features Mute and
Standby modes, POP-free turn-on and
turn-off, under-voltage lockout for both
input supplies, and multi-level over-
temperature protection.
The LX1705 is offered in a small
thermally efficient footprint, low profile
surface mountable 32-pin Micro Lead
Quad Package (MLPQ) in 5mm x 5
mm.
IMPORTANT:
For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATUR ES
Filter Free Operation
6W +6W Output Power @ 8
load: THD+N < 1%
High Efficiency > 90%
Full Audio Bandwidth: 20Hz to
20kHz
Low Distortion < 0.25% @ 30%
Max Power, 1kHz
High Signal-to-Noise Ratio:
90dB
Wide Supply Voltage Range
5.0V ~ 15V
5mA Per Channel Typical
Quiescent Current
Turn ON/OFF POP Free
Standby / Mute Feature
Built-in Under Voltage Lockout
Thermal Protection
APPLI C ATION S
LCD TV
Car Navigation
MP3 Docking Stations
Portable Sound System
PRODUCT H I GHLIGHT
LX1705
PVDD
IN1N
IN
1P
VR
E
F
TC
T
R
L
N.C.
MU
TE
IN2N
AVSS1
ST
A
T
U
S
ST
B
Y
N.C.
V5
V
PVSS2N
PVSS2P
OUT2P
BOOT2P
PVDD2
BOOT2N
OUT2N
OUT1N
BOOT1N
PVDD1
BOOT1P
OUT1P
PVSS1P
MUTE
RO
S
C
STBY
IN1N
IN1P
IN2N
IN2P
5V
TMO
N
AVSS2
IN2P
PVSS1N
PACKAGE ORDER INFO
LQ
Plastic MLPQ
32-Pin 5mm x 5mm
TA (°C)
RoHS Compliant / Pb-free
-40 to 85
LX1705ILQ
Note: Available in Tape & Reel. Append the letters “TR” to the
part number. (i.e. LX1705ILQ-TR)
LL
XX
11
77
00
55
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