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Audio Codec with USB Interface, Mono ... - Texas Instruments

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PCM2912A<br />

SLES230–SEPTEMBER 2008.......................................................................................................................................................................................... www.ti.com<br />

DAC Digital Interpolation Filter Frequency Response<br />

Amplitude - dB<br />

0<br />

�20<br />

�40<br />

�60<br />

�80<br />

�100<br />

TYPICAL CHARACTERISTICS: INTERNAL FILTER (continued)<br />

All specifications at T A = +25°C, V BUS = 5 V, f S = 44.1 kHz, f IN = 1 kHz, and 16-bit data, unless otherwise noted.<br />

STOP BAND ATTENUATION PASSBAND RIPPLE<br />

0 1 2 3 4<br />

Normalized Frequency - x f S<br />

Amplitude - dB<br />

0<br />

�4<br />

�8<br />

�12<br />

�16<br />

�20<br />

Amplitude - dB<br />

0.2<br />

0<br />

�0.2<br />

�0.4<br />

�0.6<br />

�0.8<br />

0.46 0.48 0.50 0.52 0.54<br />

Normalized Frequency - x f S<br />

0 0.1 0.2 0.3 0.4 0.5<br />

Normalized Frequency - x f S<br />

Figure 9. Figure 10.<br />

TRANSIENT BAND RESPONSE<br />

Figure 11.<br />

12 Submit Documentation Feedback Copyright © 2008, <strong>Texas</strong> <strong>Instruments</strong> Incorporated<br />

Product Folder Link(s): PCM2912A

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