Analog Devices Inc. ADL8154-EVALZ Evaluation Board for ADL8154
Analog Devices ADL8154-EVALZ Evaluation Board for ADL8154 is a 4-layer printed circuit board (PCB) fabricated from a 10mil-thick (0.25mm) Rogers 4350B and Isola 370HR copper clad, forming a nominal thickness of 62mils (1.57mm). The RFIN and RFOUT ports on the ADL8154-EVALZ are populated with 2.92mm female coaxial connectors, and the corresponding RFIN and RFOUT traces have a 50Ω characteristic impedance. The ADL8154-EVALZ is populated with components suitable for use over the entire -55°C to +125°C operating temperature range of the ADL8154. THRUCAL (J1 and J2) must be populated with RF connectors to use the through calibration path. The calibration path includes two AC coupling capacitors (C11 and C12), which must be populated to mimic the AC coupling capacitors in the main signal path.
The ADL8154-EVALZ incorporates the LT3045 ultra-low noise, ultra-high power supply rejection ratio (PSRR) linear regulator. This low-noise regulator provides a clean power source to bias the ADL8154.
The RFIN and RFOUT traces on the Analog Devices ADL8154-EVALZ are 50Ω grounded, coplanar waveguides. The package ground leads and the exposed pad connect directly to the ground plane. Multiple vias connect the top and bottom ground planes with a particular focus on the area directly beneath the ground pad to provide adequate electrical and thermal conduction. The power supply decoupling capacitors on the ADL8154-EVALZ represent the configuration used to characterize and qualify the device.
Features
- 4-layer, Rogers 4350B, and Isola 370HR evaluation board
- End launch, 2.92mm RF connectors
- Through a calibration path (depopulated)
Applications
- Telecommunication
- Test and measurement equipment
- Radars
- Local oscillator drivers
Kit Contents
- ADL8154-EVALZ evaluation board
Required Equipment
- RF signal generator
- RF spectrum analyzer
- RF attenuator - 20dB, 1W (optional)
- RF coupler - 20dB (optional)
- RF power meter and power sensor (optional)
- RF network analyzer
- 5.5V, 300mA power supply
Test Setup
Board Layout
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Analog Devices Inc. ADL8154 Low Phase Noise Amplifier
Small form factor amplifier designed for instrumentation, radar, & telecommunications applications.