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LM4931 Arkusz danych(PDF) 7 Page - Texas Instruments |
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LM4931 Arkusz danych(HTML) 7 Page - Texas Instruments |
7 / 50 page LM4931 www.ti.com SNAS251E – APRIL 2004 – REVISED MAY 2013 Electrical Characteristics DVDD = 3V, AVDD = 3V, RLHP = 32Ω, RLHF = 8Ω (1)(2) (continued) The following specifications apply for the circuit shown in Figure 62, unless otherwise specified. Limits apply for TA = 25°C. Symbol Parameter Conditions LM4931 Units (Limits) Typical(3 Limits(4) ) SS Side Tone Step Size 3 dB Audio DAC (Typical numbers are with 6.144MHz audio clock and 48kHz sampling frequency) RDAC Audio DAC Ripple 20Hz–20kHz through headphone output +/-0.1 dB PBDAC Audio DAC Passband width –3dB point 22.7 kHz SBADAC Audio DAC Stop band Attenuation Above 24kHz 76 dB DRDAC Audio DAC Dynamic Range DC – 20kHz 97 dB SNRDAC Audio DAC SNR Digital Filter Section DC – 20kHz 97 dB PLL fIN Input Frequency on MCLK pin 12 10 MHz (min) 25 MHz (max) SPI/I2C fSPI Maximum SPI Frequency 400 4000 kHz (max) tSPISETD SPI Data Setup Time 100 ns (min) tSPISETENB SPI ENB Setup Time 100 ns (min) tSPIHOLDD SPI Data Hold Time 100 ns (min) tSPIHOLDENB SPI ENB Hold Time 100 ns (min) tSPICL SPI Clock Low Time 500 ns (min) tSPICH SPI Clock HighTime 500 ns (min) tSPIT SPI Clock Transition Time 5 ns (min) fCLKI2C I2C_CLK Frequency 400 3400 kHz (max) tI2CHOLD I2C_DATA Hold Time 100 ns (min) tI2CSET I2C_DATA Setup Time 100 ns (min) PCM/I2S fCLKPCM PCM_CLK Frequency 128 kHz PCM_CLK Duty Cycle 50 40 % (min) 60 % (max) I2S_CLK Frequency I2S_RES = 0 1536 kHz fCLKI2S I2S_RES = 1 3072 kHz I2S_WS Duty Cycle 50 40 % (min) 60 % (max) Copyright © 2004–2013, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM4931 |
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