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SAF784X 数据表(PDF) 80 Page - NXP Semiconductors |
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SAF784X 数据表(HTML) 80 Page - NXP Semiconductors |
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80 / 93 page  SAF784X_2 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 02 — 9 May 2008 80 of 93 NXP Semiconductors SAF784x One chip CD audio device with integrated MP3/WMA decoder VI(dif)(p-p) peak-to-peak differential input voltage 6-bit ADC 1.4 1.4 1.4 V VI(cm) common-mode input voltage 6-bit ADC 2 - - V B bandwidth up to 6 × (2 MHz × X-rate) 12 - - MHz ∆td(ϕ) phase delay time variation up to 6 × (10 ns / X-rate) - - 1.66 ns S/N signal-to-noise ratio 100 Hz to 12 MHz - - 28 dB Vi(ADC)se(p-p) peak-to-peak single-ended ADC input voltage at 6 MHz peak-to-peak - - 1 V THD total harmonic distortion at 6 MHz - - −35 dB PSRR power supply rejection ratio 40 - - dB Gtot total gain 2.4 - 38.4 dB Zi input impedance nominal 20 20 20 k Ω B bandwidth −3 dB point 27 - 46 MHz Audio DAC Input/Output: DAC_VREF outputs: DAC_LN, DAC_LP, DAC_RN and DAC_RP S/N signal-to-noise ratio A-weighted - 90 - dB THD total harmonic distortion at 1 kHz - - −80 dB Audio feature Inputs: AUX_L and AUX_R S/N signal-to-noise ratio referenced to LF path values - 6065dB THD total harmonic distortion referenced to LF path values - −60 −30 dB Laser driver Input: Monitor Io(MONITOR) output current on pin MONITOR 120 - - mA tstartup(laser) laser start-up time 1 - - ms Vn(MONITOR) noise voltage on pin MONITOR −1 - +1 mV VMONITOR(DC) DC voltage on pin MONITOR sel180 = 0 145 - 155 mV sel180 = 1 175 - 185 mV IREF reference Output: OPU_REF_OUT Vref(bg) band gap reference voltage 1.14 1.2 1.26 V IO output current 20 25 30 µA Oscillator Pin: OSCIN (external clock) VI input voltage - 0.5VDDA -V tiH/T relative HIGH input time 45 - 55 % ILI input leakage current −20 - +20 µA Ci input capacitance - - 7 pF Table 18. Characteristics …continued VDDD = VDDA = 3.0 V to 3.6 V; VDDD(C) = 1.65 V to 1.95 V; Tamb = 25 °C; unless otherwise stated. Symbol Parameter Conditions Min Typ Max Unit |
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