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PCM3002 Datasheet(PDF) 2 Page - Burr-Brown (TI) |
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PCM3002 Datasheet(HTML) 2 Page - Burr-Brown (TI) |
2 / 39 page www.ti.com ELECTRICAL CHARACTERISTICS PCM3002 PCM3003 SBAS079A – OCTOBER 2000 – REVISED OCTOBER 2004 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. All specifications at T A = 25°C, VDD = VCC = 3 V, fS = 44.1 kHz, SYSCLK = 384 fS, and 16-bit data, unless otherwise noted PCM3002E/3003E PARAMETER CONDITIONS MIN TYP MAX UNITS DIGITAL INPUT/OUTPUT Input Logic VIH(1)(2)(3) 0.7 VDD Input logic level VDC VIL(1)(2)(3) 0.3 VDD IIN(2) ±1 Input logic current µA IIN(1)(3) 100 Output Logic VOH(4) IOUT = –1 mA VDD – 0.3 VOL(4) Output logic level IOUT = 1 mA 0.3 VDC VOL(5) IOUT = 1 mA 0.3 CLOCK FREQUENCY fs Sampling frequency 4(6) 44.1 48 kHz 256 fS 1.024 11.2896 12.288 System clock frequency 384 fS 1.536 16.9344 18.432 MHz 512 fS 2.048 22.5792 24.576 ADC CHARACTERISTICS Resolution 20 Bits DC Accuracy Gain mismatch, channel- ±1 ±3 % of FSR to-channel Gain error ±2 ±5 % of FSR Gain drift ±20 ppm of FSR/ °C Bipolar zero error High-pass filter bypassed(7) ±1.7 % of FSR Bipolar zero drift High-pass filter bypassed(7) ±20 ppm of FSR/ °C Dynamic Performance(8) VIN = –0.5 dB –86 –80 THD+N dB VIN = –60 dB –28 Dynamic range A-weighted 86 90 dB Signal-to-noise ratio A-weighted 86 90 dB Channel separation 84 88 dB (1) Pins 7, 8, 17 and 18: RST, ML, MD, and MC for the PCM3002; PDAD, PDDA, DEM1, and DEM0 for PCM3003 (Schmitt-trigger input with 100-k Ω typical internal pulldown resistor) (2) Pins 9, 10, 11, 15: SYSCLK, LRCIN, BCKIN, DIN (Schmitt-trigger input) (3) Pin 16: 20BIT for PCM3003 (Schmitt-trigger input, 100-k Ω typical internal pulldown resistor) (4) Pin 12: DOUT (5) Pin 16: ZFLG for PCM3002 (open-drain output) (6) See Application Bulletin SBAA033 for information relating to operation at lower sampling frequencies. (7) High-pass filter for offset cancel (8) fIN = 1 kHz, using the System Two™ audio measurement system by Audio Precision™ in rms mode with 20-kHz LPF, 400-Hz HPF used for performance calculation. 2 |
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