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LMX9820 Datasheet(PDF) 7 Page - National Semiconductor (TI) |
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LMX9820 Datasheet(HTML) 7 Page - National Semiconductor (TI) |
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7 / 40 page  Revision 1.0 7 www.national.com 5.0 Pad Descriptions (Continued) PH3_TP9 F13 Testpin Module Test Point.1 PH2_TP8 G13 Testpin Module Test Point.1 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, B1, C1, D1, D13, E1, E13, F1, G1, G7, H1, H4, J1, J3, J6, J7, J9, J10, J11 not connected No Connect. Must have pad for mechanical stability. RF GND1 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 soldering. Dig_gnd_11 D12 Input Digital Ground. Dig_gnd_21 G11 Input Digital Ground. VCC H2 Input 2.85V to 3.6V Input for the Internal Power Supply Reg- ulators. 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 Cir- cuitry. 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 single Ground plane. Table 7. Test Interface Signals (Continued) Pad Name Pad Location Direction Description |
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