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ADMV4680ACDZ (ADI) 10.7GHz to 14.5GHz, 4-channel half-duplex beam synthesizer designed for user terminals.

Overview:

The ADMV4680 is a Ku-band, half-duplex beamforming chip. The chip includes a single-port network interface for sending and receiving, a four-way distributor for sending and receiving, and a T/R switch for separating the sending and receiving circuits. A central digital controller allows the gain and phase of each channel to be adjusted via a core chip. In a four-channel configuration, the core chip receive path combines four phase-adjusted signals into a common RF port.

In transmit mode, the four-channel chip distributes the signal from the common RF port to four different antenna ports, adjusting the gain and phase of each path. The transmitted and received signals are combined with signals from other beam synthesizer chips to form a fully phased array antenna. The ADMV4680 is equipped with four detectors at four outputs. Each detector can be turned off/on individually to save power. In addition, the ADMV4680 integrates a temperature sensor with an accuracy of less than 10°C.

In receive mode, the ADMV4680 has a typical noise figure of 1.9dB at 25°C and 12.7GHz (including off-chip input matching networks) and a typical power consumption of 78mW. In transmit mode, the typical output compression point (P1dB) of the beam synthesizer is 9.5dBm, while the typical power consumption is 108mW.

In terms of gain and phase programmable capabilities, the ADMV4680 has multiple control options and requires at least 72 serial port interface (SPI) clock cycles to program 6-bit and 8-bit phase resolutions.

Features:

4 channel T/R

SPI control and single pin T/R control

The universal SPI bus supports up to 32 beamforming chips

Integrated power detector

Flip chip design

3.19mm × 2.49mm bare piece size

Application

• 10GHz to 15GHz satellite communication systems

If interested, please contact Mr. Chen:

Email: sales@hkmjd.com

Company website: www.hkmjd.com