link to page 5 link to page 5 link to page 5 link to page 5 link to page 5 Data SheetHMC8412CHIPSPIN CONFIGURATION AND FUNCTION DESCRIPTIONSR2BIAS3VDDHMC8412CHIPSTOP VIEW(CIRCUIT SIDE)RF14INRFOUT 002 24012- Figure 2. Pad Configuration Table 6. Pad Function Descriptions Pad No.MnemonicDescription 1 RFIN RF Input. The RFIN pad is ac-coupled and matched to 50 Ω. See Figure 4 for the interface schematic. GND Ground. The GND pads must be connected to the RF and dc ground. See Figure 6 for the interface schematic. 2 RBIAS Bias Resistor. See Figure 3 for the interface schematic. 3 VDD Drain Bias Voltage for the Amplifier. See Figure 5 for the interface schematic. 4 RFOUT RF Output. The RFOUT pad is ac-coupled and matched to 50 Ω. See Figure 5 for the interface schematic. INTERFACE SCHEMATICSRBIASVDDRFOUT 003 005 24012- 24012- Figure 3. RBIAS Interface Schematic Figure 5. RFOUT and VDD Interface Schematic GND 006 RFIN 004 24012- 24012- Figure 4. RFIN Interface Schematic Figure 6. GND Interface Schematic Rev. 0 | Page 5 of 21 Document Outline Features Applications Functional Block Diagram General Description Revision History Specifications 0.4 GHz to 8 GHz Frequency Range 8 GHz to 10 GHz Frequency Range Absolute Maximum Ratings Thermal Resistance Electrostatic Discharge (ESD) Ratings ESD Ratings for HMC8412CHIPS ESD Caution Pin Configuration and Function Descriptions Interface Schematics Typical Performance Characteristics Small Signal Response Large Signal Response Theory of Operation Applications Information Typical Application Circuit Recommended Bias Sequencing During Power-Up During Power-Down Assembly Diagram Mounting and Bonding Techniques for Millimeter Wave GaAs MMICs Handling Precautions Outline Dimensions Ordering Guide