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TRA 120 002
TRA 120 002
The TRA_120_002 is a 120-GHz IQ transceiver designed for the 122-GHz ISM band. It features on-chip antennas, operates on a single 3.3 V supply, and consumes low power at 380 mW. Key components include a low phase noise VCO, quadrature mixer, and dipole antennas, with a bandwidth capability of up to 7 GHz. The device is housed in a QFN32 package and complies with RoHS standards.
This transceiver integrates a low-noise amplifier, quadrature mixers, a poly-phase filter, and a voltage-controlled oscillator. It supports both frequency modulated continuous wave (FMCW) radar operation and continuous wave (CW) mode. The IC is manufactured using SG13S SiGe BiCMOS technology.
The transceiver is suitable for short-range radar systems with a range of up to 10 meters, which can be extended using dielectric lenses. It operates in both FMCW and CW modes, with a bandwidth extendable to the full 7 GHz tuning range.
Absolute Maximum Ratings: Supply voltage up to 3.6 V, junction temperature from -50 to 150°C, and ESD robustness of 1.2 kV.
Operating Range: Ambient temperature from -40 to 85°C, supply voltage from 3.13 to 3.47 V.
Electrical Characteristics: Supply current of 128-155 mA, VCO frequency range from 117.8 to 127.3 GHz, and receiver gain of 8-10 dB.
The device is packaged in a QFN32 with dimensions of 5 × 5 mm², including an exposed pad for grounding.
The device passed MSL3 reflow simulation tests according to JEDEC standards.
Power cycling is supported to reduce power consumption, with rapid cycling possible. Evaluation boards like SiRad Easy® are available for development, offering features like distance and velocity measurement.
The VCO tuning inputs (Vt0-Vt3) offer different tuning ranges and slopes, with Vt3 providing the widest range. Inputs can be interconnected for maximum bandwidth.
This document is a preliminary data sheet for the 120-GHz IQ Transceiver, model TRA_120_002, with a revision date of November 5, 2018. It includes technical specifications, measurement results, and disclaimers related to the product.
The simulated gain for both TX and RX on-chip antennas is reported to be 10 dBi at an angle of 30°.
Figures illustrate various performance characteristics:
- Power consumption as a function of temperature.
- Conversion gain of the receiver without an antenna.
- VCO tuning curves and full bandwidth VCO tuning.
- VCO pushing under different conditions.
- Phase noise at the divider output.
- Output frequency versus temperature.
- Output power swing normalized to 20°C.
Silicon Radar GmbH provides a disclaimer that the information is subject to change without notice and disclaims liability for misuse or unauthorized modifications. The products are not intended for life support applications or other mission-critical uses where human life or property may be at risk. The company retains all intellectual property rights related to its products.
Catalog excerpts
120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Silicon Radar GmbH Im Technologiepark 1 15236 Frankfurt (Oder) Germany fon +49.335.557 17 74 fax +49.335.557 10 50 https://www.siliconradar.com TRAˍ120ˍ002 120-GHz Highly Integrated IQ Transceiver with Antennas on Chip in Silicon Germanium Technology Preliminary Data Sheet Status: Silicon Radar GmbH Product number:
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Version Control Version Changed section specification 6.5 VCO Tuning Inputs 6.2 Power Cycling 7 Meas. Results Description of change Sections version control and document release added Spec data revised Information parameter and application hint added Application hint added Antenna Radiation Pattern (Fig. 17, 18) added Section with reflow profile added Reason for change controlled document routinely revision update update update update
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Radar front end (RFE) with on-chip antennas for 122-GHz ISM band Single supply voltage of 3.3 V Fully ESD protected device Low power consumption of 380 mW in continuous operating mode Integrated low phase noise push-push VCO Receiver with homodyne quadrature mixer RX and TX dipole on-chip antennas Large bandwidth of up to 7 GHz QFN32 leadless plastic package 5 × 5 mm² Pb-free, RoHS compliant package IC is available as bare die as well The radar front end TRAˍ120ˍ002 is an integrated transceiver circuit for the 122-GHz...
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Block Diagram Block Diagram
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Description Name VCC IFˍQn IFˍQp IFˍIn IFˍIp RXen Vt0 Vt1 Vt2 Vt3 divn divp DIVen Supply voltage (3.3 V) Quadrature IF I output, negative terminal (DC coupled) Quadrature IF I output, positive terminal (DC coupled) Quadrature IF Q output, negative terminal (DC coupled) Quadrature IF Q output, positive terminal (DC coupled) Receiver enable input, low-active CMOS input with internal 70-kΩ pull-down resistor VCO tuning input 0 (0 – VCC) VCO tuning input 1 (0 – VCC) VCO tuning input 2 (0 – VCC) VCO tuning input 3 (0...
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Absolute Maximum Ratings Attempted operation outside the absolute maximum ratings of the part may cause permanent damage to the part. Actual performance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings. Table 2 Absolute Maximum Ratings Parameter Supply voltage DC voltage at tuning inputs DC voltage at enable inputs Junction temperature Storage temperature range ESD robustness 1) Symbol VCC VVt VEN TJ TSTG VESD Condition / Remark to GND Inputs Vt0, Vt1, Vt2, Vt3...
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 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 DIVen input voltage, low level DIVen input voltage, high level RXen input voltage, low level RXen input voltage, high level VCO tuning voltage RF Parameters VCO start frequency VCO stop frequency VCO tuning full bandwidth Number adjustable of frequency bands Pushing VCO Phase noise Transmitter output power...
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Outline Dimensions Outline Dimensions of QFN32 Package with Exposed Pad Package Code Top-Side Markings Antenna Position Antenna Position (top view)
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Qualification Test Reliability and Environmental Test Condition Reflow simulation 3 times at 260°C Pass / Fail pass Reflow Profile for Pb-Free Assembly according to JEDEC Standard J-STD-020E Application Circuit
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 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. Evaluation Boards For a quick and easy start into radar development Silicon Radar offers SiRad Easy®. It is an evaluation board system for many...
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 The VCO tuning inputs Vt0 – Vt3 are of analog nature, but can be switched digitally as well. The tuning inputs differ in their tuning ranges (tuning bandwidth) and slopes, whereby Vt3 has the widest tuning range, and Vt0 the narrowest. Table 7 Typical VCO Tuning Bandwidth and Slope Middle band slope (MHz/V) ΔfTX /ΔVVt0 290 ΔfTX /ΔVVt1 300 ΔfTX /ΔVVt2 630 ΔfTX /ΔVVt3 1380 The VCO tuning range of a specific tuning input can be increased by connecting it to another tuning input. All combinations of the four tuning...
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Power Consumption vs. Temperature Conversion Gain of the Receiver (without antenna) VCO Tuning Curves. Vt0 is varied, while Vt1, Vt2 and Vt3 are driven high or low. For example, 011 means Vt3 = 0, Vt2 = 3.3 V and Vt1 = 3.3 V. Full Bandwidth VCO Tuning. Vt0, Vt1, Vt2, Vt3 are interconnected. (Vt0 = Vt1 = Vt2 = Vt3) VCO Pushing - Full Bandwidth Operation. All tuning voltages, Vt0 = Vt1 = Vt2 = Vt3
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120-GHz IQ Transceiver TRAˍ120ˍ002 Preliminary Data Sheet Revision 0.8 2018-11-05 Phase Noise of the Integrated Oscillator at Divider Output (1.89 GHz) Output Frequency vs. Temperature Normalized Output Power (dB) Output Power Swing vs. Temperature (Normalized to 20°C) Angle (degree) Antenna Radiation Pattern (simulated) Antenna Radiation Pattern (simu
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