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LX1792CJ Datasheet(PDF) 3 Page - Microsemi Corporation |
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LX1792CJ Datasheet(HTML) 3 Page - Microsemi Corporation |
3 / 9 page 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 Ω 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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