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LM4934 Folha de dados(PDF) 7 Page - National Semiconductor (TI) |
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LM4934 Folha de dados(HTML) 7 Page - National Semiconductor (TI) |
7 / 39 page Audio Amplifier Electrical Characteristics AV DD = 5.0V, DVDD = 3.3V (Notes 1, 2) (Continued) The following specifications apply for the circuit shown in Figure 1 with all programmable gain set at 0dB, unless otherwise specified. Limits apply for T A = 25˚C. Symbol Parameter Conditions LM4934 Units (Limits) Typical (Note 6) Limits (Notes 7, 8) PSRR Power Supply Rejection Ratio f = 217Hz; V ripple = 200mVP-P C B = 2.2µF; See Table 3 Table 3 Xtalk Crosstalk Loudspeaker; P O= 400mW f = 1kHz –86 dB Headphone; P O= 15mW f = 1kHz; OCL –56 dB Headphone; P O= 15mW f = 1kHz, SE –80 dB T WU Wake-Up Time C B = 2.2µF, CD6 = 0 45 ms C B = 2.2µF, CD6 = 1 130 ms Volume Control Electrical Characteristics (Notes 1, 2) The following specifications apply for 3V ≤ AV DD ≤ 5V and 2.7V ≤ DV DD ≤ 4.0V, unless otherwise specified. Limits apply for T A = 25˚C. Symbol Parameter Conditions LM4934 Units (Limits) Typical (Note 6) Limits (Notes 7, 8) PGR Stereo or Mono Analog Inputs PreAmp Gain Setting Range minimum gain setting –6 –6.5 dB (min) –5.5 dB (max) maximum gain setting 15 15.5 dB (max) 14.5 dB (min) VCR Output Volume Control for Stereo Speakers, Headphone Output, or Mono Output Range minimum gain setting, Vol = 00001 –56 –56.5 dB (min) –55.5 dB (max) maximum gain setting 5 4.5 dB (min) 5.5 dB (max) ∆A CH-CH Stereo Channel to Channel Gain Mismatch 0.3 dB A MUTE Mute Attenuation V in =1Vrms, Gain = 0dB with load, Vol = 00000 Headphone <-90 dB Line Out <-90 dB R INPUT M IN,LIN and RIN Input Impedance 23 18 k Ω (min) 28 k Ω (max) www.national.com 7 |
Nº de peça semelhante - LM4934 |
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Descrição semelhante - LM4934 |
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