27.5~31GHz 8 Channel Ka Band Tx Beamformer ZRF8165 that Each Channel Has 6-bit of Digital Shift Phase and Gain Control
The ZRF8165 eight channel transmit active beamforming RFIC is a channel transmit active beamforming RFIC designed for application in Ka band planar phased array antennas, each channel has 6-bit of digital shift phase and gain control. The device has a 28dB nominal gain and 11dBm OP1dB. The device integrated an 8-bit ADC for sampling the outputs of the eight power detectors and the temperature sensor. The 8 Channel Ka Band Tx Beamformer chip features ESD protection on all pins.
Control of all the on-chip registers is through a simple 4-wire serial port interface (SPI). In addition, three address pins allow SPI control of up to 8 devices on the same serial lines.
Features
● Frequency range: 27.5 to 31GHz
● 360° phase adjustment range
Step size: 5.625°
● Signal gain (@29GHz): 28dB
● Channel-to-channel isolation: TBD dB
● Output P1dB: 11dBm
● Gain adjustment range: 31.5dB
Step size: 0.5dB
● Operating power supply：
VDD1P2: +1.2V
VDD3P3: +3.3V
Internal LDO: +2.5V
● Operating temperature: -40℃ to + 85℃
● Integrated temperature sensor
● Package size: 4.4mm×4.4mm×0.58mm
● 4-wire SPI interface
Applications
Satellite communication, array antenna, ground terminal, and other communication equipment.
Functional block diagram
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