HMC432E: SMT GaAs HBT MMIC DIVIDE-BY-2, DC - 8 GHz

General Description

The HMC432E is a low noise Divide-by-2 Static Divider utilizing InGaP GaAs HBT technology in ultra small surface mount SOT26 plastic packages. This device operates from DC (with a square wave input) to 8 GHz input frequency with a single +3V DC supply. Single-ended inputs and outputs reduce component count and cost. The low additive SSB phase noise of -148 dBc/Hz at 100 kHz offset helps the user maintain good system noise performance.

Features

• Ultra Low SSB Phase Noise: -148 dBc/Hz
• Single-Ended I/O’s
• Output Power: -3 to -9 dBm
• Single DC Supply: +3V @ 42 mA
• 9 mm² Ultra Small Package: SOT26

Electrical Specifications (TA = +25°C, 50 Ohm System, Vcc = +3V)

Applications

• Prescaler for DC to C Band PLL Applications:UNII, Point-to-Point & VSAT Radios802.11a & HiperLAN WLANFiber OpticCellular / 3G Infrastructure

Package Information

• Package: SOT26
• Material: Low Stress Injection Molded Plastic
• Lead Finish: RoHS-compliant 100% matte Sn
• MSL Rating: MSL1
• Package Marking: 432E XXXX (4-Digit lot number)

Absolute Maximum Ratings

• RF Input Power (Vcc = +3V): 15 dBm
• Nominal +3V Supply to GND: -0.3V to 3.5V
• Max Peak Flow Temperature: 260 °C
• Storage Temperature: -65 to +125 °C
• ESD Sensitivity (HBM): 150 V
• Junction Temperature to Maintain 1 Million Hour MTTF: 135 °C
• Nominal Junction Temperature (T = 85 °C): 99 °C
• Thermal Resistance (Junction to GND Paddle, 3V Supply): 108 °C/W
• Operating Temperature: -40 to +85 °C

Pin Description

Application Circuit

• DC blocking capacitor values (C1, C2) and DC decoupling capacitor values (C3, C4) are chosen for the lowest frequency of operation.
• The circuit board used in the application should use RF circuit design techniques. Signal lines should have 50 Ohm impedance while the package ground leads should be connected directly to the ground plane.
• A sufficient number of via holes should be used to connect the top and bottom ground planes.

Evaluation PCB

• The evaluation circuit board shown is available from Hittite upon request.
• List of Materials for Evaluation PCB 105675:J1 - J2: PCB Mount SMA RF ConnectorJ3 - J4: DC PinC1 - C2: 100 pF Capacitor, 0402 Pkg.C3: 1000 pF Capacitor, 0402 Pkg.C4: 10 μF Tantalum Capacitor, 1206 Pkg.U1: HMC432 / HMC432E Divide-by-2PCB: 105199 Eval Board (Circuit Board Material: Rogers 4350)