TPA3118D2DAP datasheet(23/45 Pages) TI

Part #	TPA3118D2DAP

Description	15-W, 30-W, 50-W Filter-Free Class-D Stereo Amplifier Family With AM Avoidance

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Manufacturer	TI [Texas Instruments]

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23 / 45 page

OUTP

OUTN

10 µH

L1

10 µH

L2

C2

C3

0.68 µF

OUTP

OUTN

Ferrite

Chip Bead

1 nF

Ferrite

Chip Bead

4

- 8

W

4

- 8

W

23

TPA3116D2, TPA3118D2, TPA3130D2

www.ti.com

SLOS708G – APRIL 2012 – REVISED DECEMBER 2017

Product Folder Links: TPA3116D2 TPA3118D2 TPA3130D2

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Figure 35. TPA31xxD2 Output Filters

7.3.16 AM Avoidance EMI Reduction

To reduce interference in the AM radio band, the TPA3116D2 has the ability to change the switching frequency

via AM<2:0> pins. The recommended frequencies are listed in Table 6. The fundamental frequency and its

second harmonic straddle the AM radio band listed. This eliminates the tones that can be present due to the

switching frequency being demodulated by the AM radio.

Table 6. AM Frequencies

US

EUROPEAN

SWITCHING FREQUENCY (kHz)

AM2

AM1

AM0

AM FREQUENCY (kHz)

522-540

540-917

540-914

500

0

1

917-1125

914-1122

600 (or 400)

0

1

0

1125-1375

1122-1373

500

0

1

1375-1547

1373-1548

600 (or 400)

0

1

0

1547-1700

1548-1701

600 (or 500)

0

1

0

1

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TPA3118D2DAP Datasheet(PDF) 23 Page - Texas Instruments

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