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SRC4184IPAGT Datasheet(PDF) 3 Page - Texas Instruments |
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SRC4184IPAGT Datasheet(HTML) 3 Page - Texas Instruments |
3 / 43 page SRC4184 SBFS026B − JUNE 2004 − REVISED SEPTEMBER 2007 www.ti.com 3 ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = +25°C, VDD33 = +3.3V, VIO = +3.3V, REGEN = High, and VDD18 floating, unless otherwise noted. SRC4184 PARAMETER UNITS MAX TYP MIN CONDITIONS DIGITAL ATTENUATION Software Mode Only Minimum 0 dB Maximum −127.5 dB Step Size 0.5 dB Mute Attenuation 24-Bit Word Length −128 dB DIGITAL INTERPOLATION FILTER CHARACTERISTICS Passband 0.4535 × fsIN Hz Passband Ripple ±0.007 dB Transition Band 0.4535 × fsIN 0.5465 × fsIN Hz Stop Band 0.5465 × fsIN Hz Stop Band Attenuation −128 dB Group Delay (64 sample buffer) Decimation Filter Enabled 102.53125/fsIN seconds Group Delay (64 sample buffer) Direct Downsampling Enabled 102/fsIN seconds Group Delay (32 sample buffer) Decimation Filter Enabled 70.53125/fsIN seconds Group Delay (32 sample buffer) Direct Downsampling Enabled 70/fsIN seconds Group Delay (16 sample buffer) Decimation Filter Enabled 54.53125/fsIN seconds Group Delay (16 sample buffer) Direct Downsampling Enabled 54/fsIN seconds Group Delay (8 sample buffer) Decimation Filter Enabled 46.53125/fsIN seconds Group Delay (8 sample buffer) Direct Downsampling Enabled 46/fsIN seconds DIGITAL DECIMATION FILTER CHARACTERISTICS Passband 0.4535 × fsOUT Hz Passband Ripple ±0.008 dB Transition Band 0.4535 × fsOUT 0.5465 × fsOUT Hz Stop Band 0.5465 × fsOUT Hz Stop Band Attenuation −128 dB Group Delay Decimation Filter Decimation Filter Enabled 36.46875/fsOUT seconds Direct Downsampling Direct Downsampling Enabled 0 seconds DIGITAL DE-EMPHASIS De-Emphasis Error for fs = 32kHz, 44.1kHz, or 48kHz De-Emphasis Enabled 0.001 dB DIGITAL I/O CHARACTERISTICS High-Level Input Voltage VIH 0.7 × VIO VIO V Low-Level Input Voltage VIL 0 0.3 × VIO V High-Level Input Current IIH 0.5 10 µA Low-Level Input Current IIL 0.5 10 µA High-Level Output Voltage VOH IO = −4mA 0.8 × VIO VIO V Low-Level Output Voltage VOL IO = +4mA 0 0.2 × VIO V Input Capacitance CIN 3 pF SWITCHING CHARACTERISTICS Reference Clock Timing RCKI Frequency(2)(3) 128 × fsMIN 50 MHz RCKI Period tRCKIP 20 1/(128 × fsMIN) ns RCKI Pulsewidth High tRCKIH 0.4 × tRCKIP ns RCKI Pulsewidth Low tRCKIL 0.4 × tRCKIP ns Reset Timing RST Pulsewidth Low tRSTL 500 ns Delay Following RST Rising Edge Software Mode Only 500 µs Input Serial Port Timing LRCKI to BCKI Setup Time tLRIS 10 ns BCKI Pulsewidth High tSIH 10 ns BCKI Pulsewidth Low tSIL 10 ns SDIN Data Setup Time tLDIS 10 ns SDIN Data Hold Time tLDIH 10 ns (1) Dynamic performance is measured with an Audio Precision System Two Cascade or Cascade Plus test system. (2) fsMIN = min (fsIN, fsOUT). (3) fsMAX = max (fsIN, fsOUT). (4) Power-supply current for power-down modes is measured without loading. (5) Dynamic current is measured with active loading and the excercized output pins equal to ±2mA. |
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