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ADL5375-05ACPZ-R71 数据表(PDF) 27 Page - Analog Devices |
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ADL5375-05ACPZ-R71 数据表(HTML) 27 Page - Analog Devices |
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27 / 32 page  ADL5375 Rev. 0 | Page 27 of 32 EVALUATION BOARD Populated RoHS-compliant evaluation boards are available for evaluation of both versions of the ADL5375. The ADL5375 package has an exposed paddle on the underside. This exposed paddle should be soldered to the board for good thermal and electrical grounding. The evaluation board is designed without any components on the underside, so heat can be applied to the underside for easy removal and replacement of the ADL5375 should it be necessary. Both versions of the ADL5375 share the same evaluation board and schematic. To differentiate the boards from each other, the silkscreen on the underside of the board has a table that is marked to indicate which version (-05 or -15) is populated on the board. VPS1 RFOUT COMM NC COMM NC NC DSOP R15 49.9Ω VPOS B A VPOS LOIP COMM LOIN COMM 1 2 3 4 5 6 18 17 16 15 14 13 C1 1000pF R12 OPEN C6 1000pF S1 C5 0.1µF C3 1000pF VPOS RFOUT EXPOSED PADDLE Z1 ADL5375 GND C2 1000pF C4 0.1µF R6 10kΩ R10 OPEN R4 0Ω R3 0Ω R11 OPEN QBBN QBBP LOIP C7 1000pF R16 OPEN R17 0Ω LOIN R5 OPEN R7 OPEN R9 OPEN R2 0Ω R1 0Ω R8 OPEN IBBN IBBP VPOS Figure 70. ADL5375 Evaluation Board Schematic Table 8. Evaluation Board Description and Configuration Options Component Description Default Condition/Option Settings VPOS, GND Test Points Power Supply and Ground test points for clip leads Red = 5 V, black = GND S1 Switch DSOP Output Disable Select Position A = output enabled Position B = output disabled R1 to R4, R7 to R12 Baseband input filtering components R1 to R4 = 0 Ω (0402) R7 to R12 = open (0402) LOIP SMA, R16, R17 Single-ended local oscillator input R16 = open, R17 = 0 Ω (0402) LOIN SMA, R16, R17 Optional SMA for differential LO input R16 = 0 Ω (0402), R17 = open |
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