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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM4832M датащи(PDF) 3 Page - National Semiconductor (TI) |
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LM4832M датащи(HTML) 3 Page - National Semiconductor (TI) |
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3 / 22 page  Electrical Characteristics for Entire IC(Notes 1, 2) (Continued) The following specifications apply for V DD = 5V unless otherwise noted. Limits apply for TA = 25˚C. Symbol Parameter Conditions LM4832 Units (Limits) Typical (Note 6) Limit (Note 7) AUDIO PATH P O Output Power THD = 1.0% (max),f=1 kHz, All controls at 0dB R L =8Ω 250 mW (min) R L =32Ω 95 75 mW (min) THD+N Total Harmonic Distortion+Noise All Controls at 0 dB, THD = 10%,f=1 kHz R L =8Ω 350 mW P O = 200 mW, RL =8Ω 0.15 % P O = 75 mW, RL =32Ω 0.11 % V O = 1 Vrms, RL =10Ω 0.08 % PSRR Power Supply Rejection Ratio C B = 1 µF, f = 100 Hz, VRIPPLE = 100 mVrms, All Controls at 0 dB Setting 45 dB A M Mute Attenuation f = 1 kHz, V IN = 1V −75 dB X TALK Cross Talk P O = 200 mW, RL =8Ω, All controls at 0 dB setting, f=1kHz Left to Right −85 dB Right to Left −72 dB MICROPHONE PREAMP AND VOLUME CONTROL A V Preamp Gain 0 dB Gain 0 −1, 1 dB +20 dB Gain 20 19, 21 dB +30 dB Gain 30 29, 31 dB A R Attenuator Range Gain at +18 dB Setting 20 dB (max) Attenuation at −42 dB Setting −43 dB (min) A S Step Size 0 dB to −42 dB 3 dB Step Size Error 0.4 dB (max) V SWING Output Voltage Swing f = 1 kHz, THD < 1.0%,R L =1kΩ 1.7 V rms E NO Input Referred Noise A-Weighted, Attenuator at 0 dB 7 µV (min) PSRR Power Supply Rejection Ratio f = 100 Hz, V RIPPLE = 100 mVrms, C B =1µF 35 dB A M Mute Attenuation −90 dB X TALK Cross Talk Power Amp P O =200 mW,f=1kHz −90 dB THD+N Total Harmonic Distortion Plus Noise All controls at 0 dB,f=1 kHz, V O =1V 0 dB Setting 0.03 % +20 dB Gain 0.03 % +30 dB Gain 0.04 % I 2C BUS TIMING f MAX Maximum Bus Frequency 400 kHz T START:HOLD Start Signal: Hold Time before Clock/Data Transitions 0.6 µs T D;SETUP Data Setup Time 0.1 µs T C;HIGH Minimum High Clock Duration 0.6 µs T C;LOW Minimum Low Clock Duration 1.3 µs T STOP;SETUP Stop Signal: Setup Time before Clock/Data Transitions 0.6 µs I 2C BUS INPUT AND OUTPUT V IL Input Low Voltage 1.5 V (max) 3 www.national.com |
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