Analog Devices Inc. EVAL-ADGM1304EBZ

Overview

EVAL-ADGM1304EBZ from Analog Devices is an evaluation board designed to characterize the ADGM1304 - a 0 Hz/DC to 14 GHz, single-pole, four-throw (SP4T) MEMS switch with integrated driver in a 5 mm × 4 mm LFCSP package. It supports RF performance validation via SMA connectors (RF1–RF4, RFC, RF5/RF6), parallel (LVTTL/CMOS) and SPI control interfaces, and on-board calibration transmission line for de-embedding PCB effects up to 16 GHz.

For engineers reviewing the EVAL-ADGM1304EBZ datasheet, EVAL-ADGM1304EBZ pinout, EVAL-ADGM1304EBZ application, or EVAL-ADGM1304EBZ equivalent, this board enables full functional verification of high-frequency MEMS switching behavior, insertion loss, isolation, and timing-controlled RF path selection in lab and design-validation environments.

Technical Context

The EVAL-ADGM1304EBZ implements direct interface to the ADGM1304's dual-control architecture: parallel logic (IN1–IN4) and SPI (SDI/CS/SCLK/SDO), both configurable via on-board links. The board integrates a dedicated 3.3 V power domain, internal 10 MHz oscillator (selectable via EXTD_EN link), and optional external 80 V VCP drive for ultra-low quiescent current (≤50 μA) operation.

Its RF layout uses Rogers RO4003C dielectric (Er = 3.38) with coplanar waveguide with ground (CPWG) traces (15 thou width, 12.2 thou gap), precisely matched 50 Ω impedance, and equal-length RF paths (A + B = calibration line length) to enable accurate S-parameter de-embedding using the on-board RF5–RF6 thru-line.

Key Specifications

Availability

EVAL-ADGM1304EBZ is available at Aetrix Electronics and suitable for RF front-end prototyping, MEMS switch characterization, high-frequency test fixture development, and 5G/mmWave subsystem validation requiring stable component supply and traceable evaluation hardware.

Supply support for EVAL-ADGM1304EBZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing (DSP) technologies, headquartered in Norwood, MA, with deep expertise in RF, MEMS, and precision signal chain solutions.

The EVAL-ADGM1304EBZ belongs to Analog Devices' RF/MEMS evaluation platform family, engineered specifically to accelerate adoption of wideband MEMS switches in test instrumentation, communications infrastructure, and defense radar systems.

FAQ

What is the primary function of the EVAL-ADGM1304EBZ?

The EVAL-ADGM1304EBZ is an evaluation board for the ADGM1304 MEMS switch, enabling engineers to validate its 0 Hz to 14 GHz RF performance-including insertion loss, isolation, and switching speed-using calibrated S-parameter measurements. It provides full access to both parallel and SPI control interfaces, onboard calibration reference, and 3.3 V power conditioning. The EVAL-ADGM1304EBZ does not operate as a standalone product but serves exclusively as a characterization platform for the ADGM1304 device.

Does the EVAL-ADGM1304EBZ include the ADGM1304 IC?

Yes, the EVAL-ADGM1304EBZ includes one fully assembled ADGM1304 IC (U1) mounted on the board-a 24-lead LFCSP packaged SP4T MEMS switch with integrated driver. This allows immediate functional testing without component sourcing. The board also integrates supporting components including EEPROM (U2), SMB control connectors, SMA RF connectors, and configuration links for mode selection and signal routing.

How is network analyzer calibration performed using the EVAL-ADGM1304EBZ?

The EVAL-ADGM1304EBZ provides a dedicated calibration thru-line between RF5 and RF6, electrically identical in length to any RFx-to-RFC path. Users measure its S(2,1) response, then divide the raw switch S(2,1) data by this calibration trace to de-embed PCB insertion loss. Phase offset correction is achieved via network analyzer port extension using half the time delay of the RF5–RF6 line-ensuring accurate, fixture-compensated RF characterization up to 16 GHz.

What control interfaces does the EVAL-ADGM1304EBZ support for the ADGM1304?

The EVAL-ADGM1304EBZ supports two mutually exclusive control modes: parallel (LVTTL/CMOS) via IN1–IN4 pins, and SPI via SDI/CS/SCLK/SDO pins. Mode selection is made using the MODE link (PIN or SPI position). Control signals are applied either through on-board jumpers (P1–P4, IN1–IN4) or external SMB connectors. The internal 10 MHz oscillator can be enabled (INT) or disabled (EXT) via the EXTD_EN link to reduce noise or enable ultra-low-power operation.

Is software required to operate the EVAL-ADGM1304EBZ?

Yes, the EVAL-ADGM1304EBZ requires Analog Devices' ACE (Analysis | Control | Evaluation) software for SPI-based control and register-level configuration. ACE provides a graphical interface to toggle switch states, modify memory-mapped registers, view block diagrams, and apply changes directly to the ADGM1304. The software communicates via the EVAL-SDP-CB1Z controller board over USB and is mandatory for SPI operation-but optional for basic parallel interface testing using manual jumper settings.