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LX1792 Datasheet(PDF) 3 Page - Microsemi Corporation

Part No. LX1792
Description  Low Voltage, Low Power, AudioMite Class-D Audio Amplifier
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Maker  MICROSEMI [Microsemi Corporation]
Homepage  http://www.microsemi.com
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LX1792 Datasheet(HTML) 3 Page - Microsemi Corporation

   
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PRELIMINARY SPECIFICATION
Microsemi
INTEGRATED PRODUCTS
5973 Avenida Encinas, Suite 101, Carlsbad 92008, Fax (760) 431-0541
Page 3
Copyright
 2001
Rev. 0.3,2002-05-08
LX1792
Low Voltage, Low Power, AudioMite™
Class-D Audio Amplifier
INTEGRA T ED
P R OD UCT S
RECOM M END E D OP ERATIN
RECOM M END E D OP ERATIN
RECOM M END E D OP ERATIN
RECOM M END E D OP ERATIN G CONDIT IO NS
G CONDIT IO NS
G CONDIT IO NS
G CONDIT IO NS
LX1792
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
ELECT R ICA L CHAR ACTER
ELECT R ICA L CHAR ACTER I STIC S
I STIC S
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, Circuit connected as application schematic on page 5,Output loaded with 200Ohm in series
with 60mH.
LX1792
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
110
Quiescent Current @ Med Drive
IDDQM
120
Quiescent Current @ High Drive
IDDQH
No load
130
µA
3dB Bandwidth – min Frequency
FMIN
40
100
Hz
3dB Bandwidth – max Frequency
FMAX
R1=50k, R2=1000k, Fin=1kHz
10
KHz
Output Switching Frequency
FCLK
200
KHz
Gain1
A1
R1=50k, R2=500k
R1=25k, R2=500k
32
37
dB
Power Supply Rejection Ratio
PSRR
Input Reference
R1=50k, R2=500k
45
dB
Total Harmonic Distortion
THD1
R1=50k, R2=500k, Vin=5mVrms, Fin=1kHz
R1=25k, R2=500k, Vin=5mVrms, Fin=1kHz
0.3
0.5
%
Input Referred Noise
VN-20
R1=50k, R2=500k, 100Hz-10kHz, No weighting
R1=25k, R2=500k, 100Hz-10kHz, No weighting
4
3
µVrms
Output clock frequency
FCLK
140
200
300
KHz
Max absolute DC Offset OutN-OutP
VOFF-NP
No input signal
0
0.5
5
mV
()


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