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117611-1 Datasheet(PDF) 5 Page - Analog Devices |
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117611-1 Datasheet(HTML) 5 Page - Analog Devices |
5 / 15 page Data Sheet HMC558A Rev. 0 | Page 5 of 15 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS HMC558A TOP VIEW (Not to Scale) 9 8 7 GND RF GND 1 2 3 GND LO GND 45 6 12 11 10 NOTES 1. NIC = NO INTERNAL CONNECTION. 2. EXPOSED PAD. CONNECT THE EXPOSED PAD TO A LOW IMPEDANCE THERMAL AND ELECTRICAL GROUND PLANE. Figure 2. Pin Configuration Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1, 3, 4, 6, 7, 9 GND Ground. See Figure 6 for the ground interface schematic. 2 LO Local Oscillator Port. This pin is ac-coupled and matched to 50 Ω. See Figure 4 for the LO interface schematic. 5 IF DC-Coupled IF. For applications not requiring operation to dc, dc block this port externally using a series capacitor whose value is chosen to pass the necessary IF frequency range. For operation to dc, this pin must not source or sink more than 3 mA of current, or device nonfunction and possible device failure may result. See Figure 5 for the IF interface schematic. 8 RF RF Port. This pin is ac-coupled internally and matched to 50 Ω. See Figure 3 for the RF interface schematic. 10, 11, 12 NIC No Internal Connection. These pins can be grounded. EPAD Exposed Pad. Connect the exposed pad to a low impedance thermal and electrical ground plane. INTERFACE SCHEMATICS RF Figure 3. RF Interface LO Figure 4. LO Interface IF Figure 5. IF Interface GND Figure 6. Ground Interface |
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Similar Description - 117611-1 |
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