- 您现在的位置：买卖IC网 > PDF目录30778 > LX1721CDBT (MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP) 25 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 PDF资料下载
参数资料
| 型号： | LX1721CDBT |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 25 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| 封装： | PLASTIC, QSOP-44 |
| 文件页数： | 9/14页 |
| 文件大小： | 379K |
| 代理商： | LX1721CDBT |
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
Copyright
2001
Rev. 1.2,2004-02-02
WWW
.Microse
m
i
.CO
M
AudioMAX
LX1721 / 1722
Class-D Stereo Power Amplifier Controller
PRODUCTION
I N T E GRA T ED
PR ODUC T S
ELECTRICAL CHA RACTERISTICS
Unless otherwise specified, the following specifications apply over the operating ambient temperature -20°C < TA < 70°C (NOTE 2).
Test conditions: RPWM = 34.8k, CPWM = 100pF, VDD = PVDD = 15V
LX1721 / 1722
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Evaluation Module (See LXE1721)
Supply Voltage
LX1721
7
15
LX1722
VDD
7
25
V
Power Supply Rejection Ratio
PSRR
VIN = 15V, VRIPPLE = 1VRMS, 20Hz
to 20kHz
-70
dB
VIN = 15V, RL=4, THD+N=1%,
10Hz to 22kHz
25
Output Power (Per Channel)
PO
VIN = 25V, RL=4, THD+N=1%,
10Hz to 22kHz
60
W
VIN = 15V, fIN = 1kHz, PO = 10W
82
Efficiency
VIN = 15V, fIN = 1kHz, PO = 20W
85
%
fIN = 1kHz, PO = 1W
.06
Total Harmonic Distortion Plus Noise
THD+N
fIN = 20Hz to 20kHz, PO = 1W
.2
%
Signal-To-Noise Ratio
SNR
RL = 4, PO = 1W
81
dBr
Oscillator Section
Oscillator Frequency
FOSC
450
kHz
Charge Current
ICHG
(varies with VDD pin voltage)
-225
A
Discharge Current
IDIS
(varies with VDD pin voltage)
225
A
Oscillator Peak Voltage
VPK
(varies with VDD pin voltage)
3.6
V
Oscillator Valley Voltage
VVAL
(varies with VDD pin voltage)
1.4
V
Voltage Stability
VDD = 8V to 25V
0.6
2
%
Temperature Stability
TA = 0
OC to 70OC
1.0
2
%
Error Amplifier
Input Offset Voltage
VIO
5
‘mV
DC Open Loop Gain
AOL
60
dB
Unity Gain Bandwidth
UGBW
7
‘MHz
High Output Voltage
VOH
IOUT = -100A
3.5
V
Low Output Voltage
VOL
IOUT = +100A
100
‘mV
Input Bias Current
IIN
VIN = 1V to 4V
1
A
Input Amplifier
Stage Gain
Set by Internal Resistors
3.465
3.5
3.535
V/V
Output Voltage, High
VOH
IOUT = -100A
3.85
V
Output Voltage, Low
VOL
IOUT = +100A
1.3
V
Input Impedance
180
‘k
Feedback Amplifier
Stage Gain
LX1721
Set by Internal Resistors
89
91
93
‘mV/V
LX1722
Set by Internal Resistors
56
57
58
‘mV/V
Input Impedance
LX1721
250
k
LX1722
400
k
EE
LL
EE
CC
TT
RR
IICC
AA
LL
SS
相关PDF资料 |
PDF描述 |
|---|---|
| LX1722CDBT | 60 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| LX1722CDB | 60 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| LX1721CDBTR | 60 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| LX1722CDBTR | 60 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| LX1725ILQ-TR | 16 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LX1721CDBTR | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:Class-D Stereo Power Amplifier Controller |
| LX1721EVALKIT | 制造商:未知厂家 制造商全称:未知厂家 功能描述:AudioMAX Products |
| LX1722 | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:Class-D Stereo Power Amplifier Controller |
| LX1722-150EVALKIT | 制造商:未知厂家 制造商全称:未知厂家 功能描述:AudioMAX Products |
| LX1722CDB | 制造商:Microsemi Corporation 功能描述: |
发布紧急采购，3分钟左右您将得到回复。