Silicon Radar GmbH Im Technologiepark 1 15236 Frankfurt (Oder) Germany fon +49 335 / 228 80 30 fax +49 335 / 557 10 50 [email protected] www.siliconradar.com TRXˍ024ˍ046 24-GHz Highly Integrated IQ Transceiver Data Sheet Status: Silicon Radar GmbH Product number:

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Version Control Version 1.0 1.1 1.2 Changed section All 7 Measurement Results 4.4 Electrical Chars 4.4 Electrical Chars 7 Measurement Results Description of change Document creation Update, diagrams added Gain low gain mode: ‘Max’ value corrected and associated conditions enhanced (Note 3) Divider output power: ‘Max’ value corrected Gain high gain mode: ‘Max’ value corrected Fig. 14, 15 “Linearity of receiver…” corrected Fig. 23, 24: Curves with measurement temperature > operational Ta.max removed Reason for change New measurements...

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Features Radar transceiver for 24-GHz ISM band Single supply voltage of 3.3 V Fully ESD protected device Low power consumption of 300 mW in continuous operating mode Transmitter with power control in two steps Receiver with homodyne quadrature mixers Low-noise amplifier (LNA) with gain control Integrated low phase noise VCO Single ended TX output Single ended RX input QFN20 leadless plastic package 3 × 3 mm2 Pb-free, RoHS compliant package Replaces the obsolete TRXˍ024ˍ006 The IC is an integrated transceiver circuit for the 24-GHz...

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Block Diagram Block Diagram

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Pin Description Description Name Vct LNA gain control input: 3.3 V – high gain mode, 0 – low gain mode. CMOS Schmitt trigger input with 100-kΩ pull-up resistor, see also chapter ‘Input / Output Stages’. VCC Supply voltage RXin RF input, 50 Ω GND Ground IFˍQp IFˍQn IF outputs, DC coupled, external AC coupling capacitors required IFˍIp IFˍIn pwr1 Power-amplifier gain control input: 3.3 V – POUTˍMAX , 0 – POUTˍMAX - 4 dB. CMOS Schmitt trigger input with 100-kΩ pull-up resistor, see also chapter ‘Input / Output Stages’. TXˍEN TX...

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Absolute Maximum Ratings Attempted operation outside the absolute maximum ratings of the device may cause permanent damage to the device. Actual performance of the device is only given within the operational specifications, not at absolute maximum ratings. Table 2 Absolute Maximum Ratings Parameter Symbol Supply voltage VCC Junction temperature Storage temperature range DC voltage at control inputs Condition / Remark to GND IC provides low ohmic circuit to GND for TXout and RXin Input power into pin RFin PIN 0 dBm ESD robustness,...

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Electrical Characteristics TA = -40 °C to +85 °C unless otherwise noted. Typical values measured at TA = 25 °C and VCC = 3.3 V. Table 5 Electrical Characteristics Parameter DC Parameters Supply current consumption Control input voltage, low level Control input voltage, high level Transmitter Section TX Transmitter start frequency Transmitter stop frequency Divider division ratio Divider output frequency Tuning voltage VCO Tuning slope VCO (Vctrl) Number of adjustable frequency bands Pushing VCO Phase noise RF output impedance...

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Package Dimensions Outline Dimensions of QFN20, 3 × 3 mm², 0.4 mm Pitch Package Footprint Contact Pitch Recommended Land Pattern Distance Between Pads

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Package Code Top-Side Markings: Qualification Test Reliability and Environmental Test Qualification Test JEDEC Standard Pass / Fail Reflow simulation 3 times at 260°C Reflow Profile for Pb-Free Assembly according to JEDEC Standard J-S

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Application Circuit Schematic Application Circuit for Band Switching Power Cycling It is possible to reduce power consumption by power cycling the radar front end. Rapid power cycling with voltage rise times between 10 and 100 µs is possible. At power-up, it must be ensured that no input signal is driven high before the supply voltage is stable. At power-down, all input signals must be pulled low before the supply voltage is switched off.

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Evaluation Board Evaluation Board Stack-up Evaluation Board Layout Including Via Holes (50 mm × 50 mm, Top View) For a quick and easy start into radar development Silicon Radar offers SiRad Easy® r4. It is an evaluation board system for many of our integrated IQ transceivers with antennas in package or on PCB. It comes with a reference hardware and provides a complete design environment which can be configured via a browser-based graphical interface. Its rich functionality and the open communication protocol make it a versatile...

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 Input / Output Stages The following figures show the simplified circuits of the input and output stages. It is important that the voltage applied to the input pins never exceeds VCC by more than 0.3 V. Otherwise, the supply current may be conducted through the upper ESD protection diode connected at the pin. RXin and TXout are DC-grounded.

24-GHz IQ Transceiver TRXˍ024ˍ046 Data Sheet Version 1.3 06-10-2021 d3 swept d2 swept d1 swept d0 swept 1.5 2 2.5 Tuning Voltage Vctrl (V) VCO tuning bandwidth switching (d3|d2|d1|d0) VCO tuning, d3 - d0 swept, Vctrl = 0 = constant VCO band switching inputs d3 to d0 can be used to switch the output frequency band as in Figure 10. As an example, input combination ‘0101’ with d3, d1 = 3.3 V and d2, d0 = 0 includes the 24-GHz ISM band. However, the designer should take into account that output frequency bands may shift from chip to chip, and same switch settings may not give the same output band....