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参数资料
| 型号： | LX1790CBD |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 CHANNEL, AUDIO AMPLIFIER, UUC7 |
| 封装： | DIE-7 |
| 文件页数： | 3/7页 |
| 文件大小： | 125K |
| 代理商： | LX1790CBD |
PRODUCTION DATA SHEET
Microsemi
INTEGRATED PRODUCTS
5973 Avenida Encinas, Suite 101, Carlsbad 92008, Fax (760) 431-0541
Page 3
Copyright
2001
Rev. 1.0,2002-05-08
WWW
.M
ic
ro
sem
i
.COM
LX1790
Low Voltage, Low Power, AudioMite
Class-D Audio Amplifier
INTEGR A T E D
PR ODU C T S
RECOM M END E D OP ERATIN
RECOM M END E D OP ERATIN G CONDIT IO NS
G CONDIT IO NS
LX1790
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
! OPERATING CONDITIONS
Supply Voltage
VDD
0.9
1.5
V
Ground
VSS
0
V
ELECT R ICA L CHAR ACTER
ELECT R ICA L CHAR ACTER I STIC S
I STIC S
Unless otherwise specified, the following specifications apply over the operating ambient temperature TA=25°C except where otherwise
noted. Test conditions: VDD=1.3V, VSS=0V, RLOAD=200
in Series with 60mH
LX1790
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Switch Output Resistance @ Low
Drive
ROUT-L
48
Switch Output Resistance @ Med
Drive
ROUT-M
24
Switch Output Resistance @ High
Drive
ROUT-HI
16
19
Quiescent Current @ Low Drive
IDDQL
100
Quiescent Current @ Med Drive
IDDQM
110
Quiescent Current @ High Drive
IDDQH
120
A
3dB Bandwidth – mid Frequency
FMIN
40
100
Hz
3dB Bandwidth – max Frequency
FMAX
All gain settings
20
KHz
Output Switching Frequency
FCLK
200
KHz
Gain Setting 1
A1
VIN = 100mVRMS @ 1KHz
12
14
16
dB
Gain Setting 2
A2
VIN = 50mVRMS @ 1KHz
18
20
22
dB
Gain Setting 3
A3
VIN = 25mVRMS @ 1KHz
24
26
28
dB
Power Supply Rejection Ratio
PSRR
Input Reference
45
dB
Total Harmonic Distortion @ Gain =
14dB
THD14
VIN = 50mVRMS @ 1KHz
0.3
%
Total Harmonic Distortion @ Gain =
20dB
THD20
VIN = 25mVRMS @ 1KHz
0.3
%
Total Harmonic Distortion @ Gain =
26bd
THD26
VIN=12mVRMS @ 1KHz
0.3
%
Input Referred Noise
VN-14
Gain = 14dB, 100Hz – 10Khz, A-Weighted
20
V
Input Referred Noise
VN-20
Gain = 20dB, 100Hz – 10Khz, A-weighted
10
V
Input Referred Noise
VN-26
Gain = 26dB, 100Hz – 10Khz, A-weighted
6
V
Input Resistance
RIN-14
Gain = 14dB
120
K
Input Resistance
RIN-20
Gain = 20dB
83
K
Input Resistance
RIN-26
Gain = 26dB
53
K
Output clock frequency
FCLK
140
200
300
KHz
DC Offset OutN-OutP
VOFF-NP
No input signal
-5
0
5
mV
EE
LL
EE
CC
TT
RR
IICC
AA
LL
SS
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