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TDA8924 Datasheet(PDF) 18 Page - NXP Semiconductors |
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TDA8924 Datasheet(HTML) 18 Page - NXP Semiconductors |
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18 / 35 page  This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... MDB570 TDA8924 C20 330 pF C10 100 nF C12 100 nF C11 220 nF C9 220 nF C8 220 nF on mute off R5 30 k Ω C17 470 nF R7 5.6 k Ω C16 470 nF R6 5.6 k Ω J4(1) J3(1) C21 330 pF 8 10 12 7 6 1 3 24 18 13 19 23 20 VDDA1 VSSA1 OSC MODE VDDA VSSA VSSA 9 11 2 5 15 OUT1 BOOT1 BOOT2 OUT2 16 21 22 4 IN1 + IN1 − IN2 + IN2 − SGND1 SGND GND GND GND C13 100 nF C14 220 nF C15 100 nF 14 17 VDDP1 VSSP1 VDDP VDDA VSSP GND GND R4 39 k Ω R3 39 k Ω Z1 5.6 V S1 GND C34 100 nF C35 220 nF C36 100 nF C32 220 nF C33 47 pF VSSA2 VDDA2 VSSD STABI PROT HW VSSA VDDA VSSP GND GND C37 100 nF C38 220 nF C39 100 nF C22 15 nF C23 15 nF C30 15 nF C31 15 nF C26 1 µF C27 1 µF R10 4.7 Ω C24 560 pF R11 4.7 Ω C25 560 pF R12 22 Ω R13 22 Ω C28 220 nF C29 220 nF L5 10 µH L6 10 µH VDDP2 VSSP2 VDDP GND GND GND GND SGND SGND SE 2 Ω SE 2 Ω OUT1 − OUT1 + OUT2 − OUT2 + VSSP GND GND SGND2 J2(4) J1(4) in 1 in 2 C18 470 nF R8 5.6 k Ω C19 470 nF R9 5.6 k Ω (2) BTL 4 Ω L1 BEAD L2 BEAD C1 470 µF C3 47 µF C2 470 µF 100 nF C6 100 nF C7 VDDP VSSP GND R1(3) 10 k Ω R2(3) 9.1 k Ω VDDA VSSA C4 47 µF C5 47 µF GND GND GND GND VSS VDD L3 BEAD L4 BEAD +25 V −25 V Fig.9 Single-chip class-D audio amplifier application diagram. (1) BTL: remove IN2, R8, R9, C18, C19, C21 and close J3 and J4. (2) BTL: connect loudspeaker between OUT1+ and OUT2 −. (3) BTL: R1 and R2 are only required when an asymmetrical supply is used (VSS = 0 V). (4) In case of hum close J1 and J2. Every decoupling to ground (plane) must be made as close as possible to the pin. To handle 20 Hz under all conditions in stereo SE mode, the external power supply needs to have a capacitance of at least 4700 µF per supply line; VP = ±27 V (max). |
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