Datasheet Analog Devices ADAR1000 — Datenblatt

8 GHz to 16 GHz, 4-Channel, X Band and
Ku Band Beamformer
ADAR1000 Data Sheet
FEATURES GENERAL DESCRIPTION 8 GHz to 16 GHz frequency range
Half-duplex for transmit and receive modes
Single-pin transmit and receive control
360° phase adjustment range
2.8° phase resolution
≥31 dB gain adjustment range
≤0.5 dB gain resolution
Bias and control for external transmit and receive modules
Memory for 121 prestored beam positions
Four −20 dBm to +10 dBm power detectors
Integrated temperature sensor
Integrated 8-bit ADC for power detectors and temperature sensor
Programmable bias modes
4-wire SPI interface The ADAR1000 is a 4-channel, X and Ku frequency band,
beamforming core chip for phased arrays. This device operates
in half-duplex between receive and transmit modes. In receive
mode, input signals pass through four receive channels and are
combined in a common RF_IO pin. In transmit mode, the
RF_IO input signal is split and passes through the four transmit
channels. In both modes, the ADAR1000 provides a ≥31 dB gain …

4 Channel X/Ku Band Beamformer
ADAR1000 Preliminary Technical Data
FEATURES GENERAL DESCRIPTION 8 GHz to 16 GHz frequency range
Half-duplex for TX and RX modes
Single pin Transmit/Receive control
360° phase control, 2.8 degree phase resolution
31 dB gain control, ≤0.5 dB resolution
Bias and control for external T/R modules
Memory for 121 pre-stored beam positions
Four 30 dB range Power Detector
Integrated Temperature Sensor
8-Bit ADC for power detectors and temperature sensor
Programmable Bias Modes
4 wire ADI SPI Interface The ADAR1000 is a 4-channel X/Ku frequency band
beamforming core chip for phased arrays. This device operates
in half-duplex: in Receive (RX) mode the four RX inputs are
combined to a common RF_IO pin, and in TX mode the RF_IO
signal is split into the 4 TX channels. In both modes, the
ADAR1000 provides 31dB of gain control and full 360 deg. of
phase control in the RF path, with better than 6-bit resolution
(less than 0.5 dB and 2.8 deg. respectively).
Control of all the on-chip registers is through a simple 4-wire
Serial Programming Interface (SPI). In addition, there are two …