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CS47L85 データシート(PDF) 18 Page - Cirrus Logic |
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CS47L85 データシート(HTML) 18 Page - Cirrus Logic |
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18 / 370 page  CS47L85 18 Rev 4.3 Test Conditions The following electrical characteristics are valid across the full range of recommended operating conditions. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Line / Headphone / Earpiece Output Driver (HPOUTnL, HPOUTnR) Load resistance Normal operation, Single-ended mode 6 Ω Normal operation, Differential (BTL) mode 15 Device survival with load applied indefinitely 0 Load capacitance Single-ended mode 500 pF Differential (BTL) mode 200 Speaker Output Driver (SPKOUTLP+SPKOUTLN, SPKOUTRP+SPKOUTRN) Load resistance Normal operation 4 Ω Device survival with load applied indefinitely 0 Load capacitance 200 pF Digital Speaker Output (SPKDAT1, SPKDAT2) Full-scale output level (0dBFS digital core output) 0dB gain -6 dBFS Notes: 1. The digital output signal level is measured in dBFS, where 0dBFS is a signal level equal to the full-scale range (FSR) of the PDM output. The FSR is defined as the amplitude of a 1kHz sine wave whose positive and negative peaks are represented by the maximum and minimum digital codes respectively - this is the largest 1kHz sine wave that will fit in the digital output range without clipping. Test Conditions DBVDD1 = DBVDD2 = DBVDD3 = DBVDD4 = CPVDD1 = AVDD = LDOVDD = 1.8V, CPVDD2 = 1.2V, DCVDD = FLLVDD = 1.2V (powered from LDO1), MICVDD = 2.5V (powered from LDO2), SPKVDDL = SPKVDDR = 4.2V, TA = +25ºC, 1kHz sinusoid signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated. PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Line / Headphone / Earpiece Output Driver (HPOUTnL, HPOUTnR) DC offset at Load Single-ended mode 100 100 µV Differential (BTL) mode 200 Speaker Output Driver (SPKOUTLP+SPKOUTLN, SPKOUTRP+SPKOUTRN) DC offset at Load 3 mV SPKVDD leakage current 1 µA |
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