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PCM3000 Datasheet(PDF) 3 Page - Texas Instruments |
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PCM3000 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 40 page  www.ti.com PCM3000 PCM3001 SBAS055A – OCTOBER 2000 – REVISED OCTOBER 2004 ELECTRICAL CHARACTERISTICS (continued) All specifications at T A = 25°C, VDD = VCC = 5 V, fS = 44.1 kHz, SYSCLK = 384 fS, CLKIO input, and 18-bit data, unless otherwise noted PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Dynamic Performance(9) f = 1 kHz, VIN = –0.5 dB –88 –80 THD+N dB f = 1 kHz, VIN = –60 dB –31 Dynamic range f = 1 kHz, A-weighted 90 94 dB Signal-to-noise ratio f = 1 kHz, A-weighted 90 94 dB Channel separation 88 92 dB Digital Filter Performance Pass band 0.454 fS Hz Stop band 0.583 fS Hz Pass-band ripple ±0.05 dB Stop-band attenuation –65 dB Delay time (latency) 17.4/fS s Digital High-Pass Filter Response Cutoff frequency –3 dB 0.019 fS mHz ANALOG INPUT Voltage range 0 dB (full scale) 2.9 Vp-p Center voltage 2.1 VDC Input impedance 15 k Ω Antialiasing Filter Cutoff frequency –3 dB, CEXT = 470 pF 170 kHz DAC CHARACTERISTICS Resolution 18 Bits DC Accuracy Gain mismatch, channel-to-channel ±1 ±5 % of FSR Gain error ±1 ±5 % of FSR Gain drift ±20 ppm of FSR/ °C Bipolar zero error ±1 % of FSR Bipolar zero drift ±20 ppm of FSR/ °C Dynamic Performance(9) VOUT = 0 dB (full scale) –90 –80 THD+N dB VOUT = –60 dB –34 Dynamic range EIAJ A-weighted 90 97 dB Signal-to-noise ratio (idle channel) EIAJ A-weighted 92 98 dB Channel separation 90 95 dB Digital Filter Performance Pass band 0.445 fS Hz Stop band 0.555 fS Hz Pass-band ripple ±0.17 dB Stop-band attenuation –35 dB Delay time 11.1/fS s (9) fIN = 1 kHz, using the System Two™ audio measurement system by Audio Precision™, rms mode with 20-kHz LPF, 400-Hz HPF used for performance calculation or measurement. 3 |
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