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參數(shù)資料
| 型號(hào)： | LX1725ILQ |
| 廠商： | MICROSEMI CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 16 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
| 封裝： | 7 X 7 MM, ROHS COMPLIANT, PLASTIC, MLPQ-32 |
| 文件頁數(shù)： | 19/23頁 |
| 文件大?。?/td> | 377K |
| 代理商： | LX1725ILQ |
LX1725
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
5
Page
WWW
.Microse
m
i
.CO
M
15W+15W Stereo Class-D Amplifier
Filterless 30W Mono in BTL
Copyright
2004
Rev. 1.1, 2005-11-04
TM
ELECTRICAL CHA RACTERISTICS
Notes: Unless otherwise specified, the following specifications apply over the operating ambient temperature TA = -40 ~ +85°C°C except
where otherwise noted (typical @ TA = 25°C) and the following test conditions: VPOS = +12V, VNEG = -12V, VGND = 0V, V5V = 5V,
VCOM = 0V RILIM = 50Kohm, COSC = 220pF, RL = 8Ω.
LX1725
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
OSCILLATOR
Oscillator Frequency
FOSC
Varies with COSC capacitor value, value shown is
for default conditions.
160
220
280
KHz
Voltage Stability
VPOS-VNEG = 12V to 30V
10
%
TA = 0°C to 70°C
5
%
Temperature Stability
TA = -40°C to 85°C
8
%
POWER SUPPLY
VCOM to GND
±6
±12
±15
VPOS/VNEG
VNEG to GND
12
24
30
Supply Voltage
V5V
@ Single Power Supply
4.5
5.0
5.5
V
Stand-By Current
STBY Enable, TA = 25°C @ V5V
250
A
Operating Current
STBY Disabled, MUTE Enabled @ V5V
15
20
mA
GAIN
High Gain Mode
GHIGH
POUT = 4W, F = 1kHz, VMUTE = VGND, HIGAIN =
V5V
18
22
26
V/V
Normal Gain
GNOM
Pout=1W, F=1KHz, VMUTE = VGND, HIGAIN = VGND
9
11
13
V/V
Low Gain
GLOW
Pout=0.25W, F=1KHz, V5V / 4 < VMUTE < V5V / 2,
HIGAIN = VGND
4.5
5.5
6.5
V/V
Mute Gain
GMUTE
Input 2Vpp, F=1KHz, VMUTE = V5V
0.01
0.045
V/V
OFFSET
Output DC Offset
Voff
Measured WRT VCOM
100
170
mV
INPUT STAGE
Input Resistance
RIN
Single-ended
17
27
K
Ω
Common Mode Voltage
VCM
2.29
V
Common Mode Rejection Ratio
CMRR
60
dB
OUTPUT STAGE
PFET On resistance
RDSONp
VPOS = 12V, VNEG = -12V, Ids = 0.2A
550
900
m
Ω
NFET On resistance
RDSONn
VPOS = 12V, VNEG = -12V, Ids = 0.2A
550
900
m
Ω
CURRENT LIMIT
Current Limit Threshold
Ith
GBNT **
3.75
A
Pulse Qualification Count
Icount
Any 4 out of 5 clock periods
4
VOLTAGE THRESHOLDS AT VPOS – VNEG
Under Voltage Threshold
VPOS – VNEG
10
12
13.2
V
Start Threshold Hysteresis
0.38
1
1.78
V
UNDER VOLTAGE LOCK-OUT @ V5V
Start Threshold Voltage
3.8
4
V
THERMAL
Thermal Gain Fold Back Junction
Temperature
125
°C
Thermal shut off Junction
Temperature
150
°C
EE
LL
EE
CC
TT
RR
IICC
AA
LL
SS
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