User Guide PAM8406 EV Board (Diodes) - 3
| Fabricante | Diodes |
| Descripción | 5W Stereo Audio Amplifier with Class D/AB Switch |
| Páginas / Página | 5 / 3 — PAM8406. EVB User Guide. EV Board BOM List. Item Value Type. Rating … |
| Formato / tamaño de archivo | PDF / 909 Kb |
| Idioma del documento | Inglés |
PAM8406. EVB User Guide. EV Board BOM List. Item Value Type. Rating Description. 5. External Components Selection
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PAM8406 EVB User Guide EV Board BOM List Item Value Type Rating Description
X5R/X7R, C7,C8 10µF 10V PVDD main decoupling CAP Ceramic/0805 X5R/X7R, C3,C4 1µF 10V PVDD coupling CAP Ceramic/0603 X5R/X7R, C6 1µF 10V VDD decoupling CAP Ceramic/0603 X5R/X7R, C5 1µF 10V Vref bypass CAP Ceramic/0603 X5R/X7R, C1,C2, 1µF 10V Input coupling CAP Ceramic/0603 R1,R2 10K 0805 1% Input Resistor R4 10Ω 0805 5% Separate AVCC from PVDD C13 220µF Electrolytic 10V DC coupling CAP FB1,FB2,FB3,FB4 2A/120Ω 0805 For EMI X5R/X7R, C9,C10,C11,C12, 220pF 10V Ceramic/0603
5. External Components Selection Power Supply decoupling Caps (C3, C4, C6, C7, C8)
(1) Low ESR for good THD, PSRR (2) C3,C4 and C6, 1.0µF ceramic for higher frequency transients, spikes (3) C7 and C8, Additional 10uF or greater for low frequency noise filtering and serves as a local storage capacitor for supplying current during large signal transients on the amplifier outputs. (4) Need place very closed to the IC
Input Capacitors (C1, C2)
(1) Form a high pass filter with Ri, and the cut off frequency is fc=1/2∏Ri*Ci (2) Low leakage current needed, ceramic recommend
Input Resistors (R1, R2)
(1) Limit the closed-loop gain (2) Form a high pass filter with Ci, and the cut off frequency is fc=1/2*Π*Ri*Ci (3) 1% tolerance needed for resistor matching to improve CMRR, PSRR
VREF Bypass Capacitor (C5)
(1). 1µF ceramic recommend (2). Need place very closely to the pin for good THD, PSRR
EMI Eliminate Filter (FB1, FB2, FB3 and FB4)
(1) High impedance at high frequency and very low impedance at low frequency (2) The current rating is higher than 2A This application note contains new product information. Diodes, Inc. reserves the right to modify the product specification without notice. No liability isassumed as a result of the use of this product. No rights under any patent accompany the sale of the product.
X5R/X7R, C7,C8 10µF 10V PVDD main decoupling CAP Ceramic/0805 X5R/X7R, C3,C4 1µF 10V PVDD coupling CAP Ceramic/0603 X5R/X7R, C6 1µF 10V VDD decoupling CAP Ceramic/0603 X5R/X7R, C5 1µF 10V Vref bypass CAP Ceramic/0603 X5R/X7R, C1,C2, 1µF 10V Input coupling CAP Ceramic/0603 R1,R2 10K 0805 1% Input Resistor R4 10Ω 0805 5% Separate AVCC from PVDD C13 220µF Electrolytic 10V DC coupling CAP FB1,FB2,FB3,FB4 2A/120Ω 0805 For EMI X5R/X7R, C9,C10,C11,C12, 220pF 10V Ceramic/0603
5. External Components Selection Power Supply decoupling Caps (C3, C4, C6, C7, C8)
(1) Low ESR for good THD, PSRR (2) C3,C4 and C6, 1.0µF ceramic for higher frequency transients, spikes (3) C7 and C8, Additional 10uF or greater for low frequency noise filtering and serves as a local storage capacitor for supplying current during large signal transients on the amplifier outputs. (4) Need place very closed to the IC
Input Capacitors (C1, C2)
(1) Form a high pass filter with Ri, and the cut off frequency is fc=1/2∏Ri*Ci (2) Low leakage current needed, ceramic recommend
Input Resistors (R1, R2)
(1) Limit the closed-loop gain (2) Form a high pass filter with Ci, and the cut off frequency is fc=1/2*Π*Ri*Ci (3) 1% tolerance needed for resistor matching to improve CMRR, PSRR
VREF Bypass Capacitor (C5)
(1). 1µF ceramic recommend (2). Need place very closely to the pin for good THD, PSRR
EMI Eliminate Filter (FB1, FB2, FB3 and FB4)
(1) High impedance at high frequency and very low impedance at low frequency (2) The current rating is higher than 2A This application note contains new product information. Diodes, Inc. reserves the right to modify the product specification without notice. No liability isassumed as a result of the use of this product. No rights under any patent accompany the sale of the product.