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LMX9820ASM Datasheet(PDF) 7 Page - National Semiconductor (TI) |
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LMX9820ASM Datasheet(HTML) 7 Page - National Semiconductor (TI) |
7 / 44 page Revision 1.0 7 www.national.com 5.0 Pad Descriptions (Continued) 1. Treat as no connect. Pad required for mechanical stability. Table 8. Power, Ground, and No Connect Signals Pad Name Pad Location Direction Description NC A1, A2, A3, A4, A5, A6, A7, A9, B1, C1, D1, D13, E1, E13, F1, G1, G7, H1, H4, J1, J3, J6, J7, J9, J10, J11 No Connect No Connect. Pad required for mechanical stability. RF GND 1 B2, B3, B4, B5, B6, B7, C2, C3, C4, C5, C6, C7, D2, D3, D4, D5, D6, D7, E2, E3, E4, E5, E6, E7, F2, F3, F4, F5, F6, F7, G2, G3, G4, G5, G6, H5, H6, H7, H9, H10, H11 Input Radio System Ground. Must be connected to RF Ground plane. Thermal relief required for proper solder- ing. Dig_gnd_1 1 D12 Input Digital Ground Dig_gnd_2 1 G11 Input Digital Ground VCC H2 Input 2.85V to 3.6V Input for Internal Power Supply Regula- tors VDD_ANA_OUT J2 Output Voltage Regulator Output/Power Supply for Analog Circuitry. If not used, place pad and do not connect to VCC or Ground. VDD_DIG_OUT J5 Output Voltage Regulator Output/Power Supply for Digital Circuitry. If not used, place pad and do not connect to VCC or Ground. VDD_DIG_PWR_D# J4 Input Power Down for the Internal Power Supply Regulator for the Digital Circuitry. Place pad and do not connect to VCC or Ground. 1. Connect RF GND, Dig_gnd_1, and Dig_gnd_2 to a single ground plane. |
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