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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADRF6614ACPZ-R7 датащи(PDF) 59 Page - Analog Devices |
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ADRF6614ACPZ-R7 датащи(HTML) 59 Page - Analog Devices |
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59 / 61 page  Data Sheet ADRF6614 Rev. 0 | Page 59 of 61 Table 47. Evaluation Board Bill of Materials Components Description Default Conditions C1, C2, C8, C11, C12, C13, C14, C15, C18, C19, C20, C23, C26, C27 Power supply decoupling. Nominal supply decoupling consists of a 0.1 μF capacitor to ground in parallel with a 10 pF capacitor to ground positioned as close to the device as possible. C1, C2, C26, C27 = 0.1 μF (size 0402) C8, C11, C12, C13, C14, C15, C18, C19 C20, C23 = 10 pF (size 0402) C6, C7, C24, C25 RF input interface. The input channels are ac-coupled through C6 and C24. C7 and C25 provide bypassing for the center tap of the RF input baluns. C6, C24 = 22 pF (size 0402) C7, C25 = 22 pF (size 0402) C3, C4, C5, C28, C29, C30, L1, L2, L3, L4, R20, R21, R22, R23, T1, T2 IF output interface. The open-collector IF output interfaces are biased through pull-up choke Inductors L1, L2, L3, and L4. T1 and T2 are 4:1 impedance transformers used to provide single-ended IF output interfaces, with C5 and C30 providing center tap bypassing. Remove R21 and R22 for balanced output operation. C3, C4, C5, C28, C29, C30 = 120 pF (size 0402) L1, L2, L3, L4 = 470 nH (size 0603) R20, R23 = open R21, R22 = 0 Ω (size 0402) T1, T2 = TC4-1W+ (Mini-Circuits®) C17 LO interface. C17 provides ac coupling for the local oscillator input. C17 = 22 pF (size 0402) R1, R2 Bias control. R1and R2 set the bias point for the internal IF amplifier. R1, R2 = 910 Ω (size 0402) Figure 122. Evaluation Board, Top Layer |
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