ZRF8165 Data Sheet
8 Channel Ka Band Tx Beamformer,27.5~31GHz
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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 P
1
dB: 11 dBm
Gain adjustment range: 31.5 dB,
Step size: 0.5 dB
Operating power supply：
VDD1P2: +1.2V
VDD3P3: +3.3V
Internal LDO: +2.5V
Operating temperature: -40°C to + 85°C
Integrated temperature sensor
Package size: 4.4mm×4.4mm×0.58mm
4-wire SPI interface
Product description
The ZRF8165 is eight 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
11 dBm OP1dB. The device integrated an 8-bit
ADC for sampling the outputs of the eight power
detectors and the temperature sensor. The 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.
Applications
Satellite communication, array antenna.
ground terminal and other communication
equipment.
Digital Control Interface
SPI
Power
management
RF8
RF7
RF6
RF5
RF1
RF3
RF2
RF4
COM
Temperature Sensor
ADC
ADDR
0
ADDR
1
ADDR
2
SPI CLK
SPI
_SDO
SPI
_SDI
SPI
_CSB
LDB
RF_ENB
VDD
1P2
DVDD
1P2
VDD
3P3
LDO
_CP
GND
DGND
Amp Bias
VDD1P2
Power Detection (PD)
PD
PD
PD
PD
PD
PD
PD
PD
Figure 1. Functional block diagram