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TPA5052 Datasheet(PDF) 7 Page - Texas Instruments |
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TPA5052 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 10 page www.ti.com APPLICATION EXAMPLES Connecting Two Devices in Series to Increase the Delay VDD VDD BCLK BCLK LRCLK LRCLK DATA_OUT DATA_OUT DEL4 DEL4 DEL3 DEL3 DEL0 DEL0 GND GND Audio Amplifier 0.1 F m 0.1 F m DEL2 DEL2 DEL1 DEL1 SCLK DATA DATA BCLK LRCLK Audio Processor SCLK DATA BCLK LRCLK DATA DEVICE CURRENT CONSUMPTION 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 32 52 72 92 112 132 152 172 192 fs-SamplingFrequency-kHz V =3.6V DD V =3.3V DD V =3V DD BCLK=64fs Data=24bit TPA5052 SLOS500A – JUNE 2006 – REVISED AUGUST 2006 It is sometimes desirable to increase the delay time beyond the limit which one device provides. In such cases, the TPA5052 device can be placed in a series to increase the delay. See Figure 4 for an example. Figure 4. Two Devices in Series The TPA5052 draws different amounts of supply current depending upon the conditions under which it is operated. As VDD increases, so too does IDD. Likewise, as VDD decreases, IDD decreases. The same is true of the sampling frequency, fs. An increase in fs causes an increase in IDD. Figure 5 illustrates the relationship between operating condition and typical supply current. SUPPLY CURRENT vs SAMPLE FREQUENCY Figure 5. Typical Supply Current 7 Submit Documentation Feedback |
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