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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM49150TLEVAL датащи(PDF) 5 Page - Texas Instruments |
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LM49150TLEVAL датащи(HTML) 5 Page - Texas Instruments |
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5 / 31 page  LM49150, LM49150TLEVAL www.ti.com SNAS439B – AUGUST 2008 – REVISED MARCH 2009 Electrical Characteristics 3.3V (1) (continued) The following specifications apply for VDD = LSVDD = 3.3V, AV = 0dB, Loudspeaker RL = 15μH+8Ω+15μH, Earpiece RL = 8Ω, f = 1kHz, unless otherwise specified. Limits apply for TA = 25C. LS = Loudspeaker, HP = Headphone, EP = Earpiece. LM49150 Units Symbol Parameter Conditions (Limits) Typical(2) Limits(3) LS mode 1, THD+N = 1%, f = 1kHz 845 mW LS Gain = 6dB, RL = 4Ω LS mode 1, THD+N = 1%, f = 1kHz 520 450 mW (min) LS Gain = 6dB, RL = 8Ω HP mode 8, THD+N = 1%, f = 1kHz PO Output Power 42 mW HP Attenuation = 0dB, RL = 16Ω HP mode 8, THD+N = 1%, f = 1kHz 43 39 mW (min) HP Attenuation = 0dB, RL = 32Ω EP Bypass only, THD+N = 1%, f = 1kHz 35 28 mW (min) RL = 8Ω LS mode 1, f = 1kHz 0.02 % POUT = 250mW; RL = 8Ω HP mode 8, f = 1kHz THD+N Total Harmonic Distortion + Noise 0.009 % POUT = 20mW; RL = 32Ω EP Bypass only, f = 1kHz 0.15 % POUT = 20mW; RL = 8Ω η Efficiency LS output 88 % A-weighted, inputs terminated to AC GND, Output referred EP Bypass 11 μV LS; Mode 1 41 μV LS; Mode 2 41 μV ∈OUT Output Noise LS; Mode 3 43 μV HP; Mode 4 9 μV HP; Mode 8 10 μV HP; Mode 12 12 μV VRIPPLE = 200mVPP; f = 217Hz, RL = 8Ω, CB = 2.2µF, All audio inputs terminated to AC GND, output referred EP Bypass 95 dB Loudspeaker Output; LS Gain = 6dB LS; Mode 1 72 dB LS; Mode 2 67 dB PSRR Power Supply Rejection Ratio LS; Mode 3 71 dB Headphone Output, HP Attenuation = 0dB HP; Mode 4 91 dB HP; Mode 8 83 dB HP; Mode 12 81 dB Volume Control Step Size Error ±0.2 dB Maximum Attenuation -92 dB -49 dB (min) Volume Step 2 -46.5 Digital Volume Control Range -44 dB (max) 17 dB (min) Maximum Gain 18 19 dB (max) HP 98 dB AM Mute Attenuation LS 98 dB Copyright © 2008–2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM49150 LM49150TLEVAL |
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