FMCW Transceiver RS3400K/00
Features:
- Complete K-band FMCW Radar Front End
- Intrinsic Safe Design
- Synthesized Frequency Source
- Wideband Sweep
- Low Power Consumption
Description:
The RS3400K/00 is a synthesized, K-band, FMCW radar front end. It is designed according to previously proven concepts for intrinsic safety giving a reliable unit with low power consumption. It utilizes only packaged low-cost components, which makes low unit prices and high volumes possible. The frequency is digitally controlled via a standard, 3-wire serial interface, which programs a modern high performance synthesizer circuit. A complete kit for controlling the unit through RS-232 or USB from a PC for easy evaluation is available.Performance Specification:
Guaranteed values. Tested or implicated by design. All units are tested at operating temperature range limits and at room temperature.| Parameter |
Min. |
Typ. |
Max. |
Unit |
| RF: (Probing signal) | ||||
| Minimum output frequency |
24000 |
MHz | ||
| Maximum output frequency | 25500 |
MHz |
||
| Frequency stability (1) | 35 |
ppm |
||
| Bandwidth stability | 35 |
ppm |
||
| Frequency setting resolution | 2 | kHz | ||
| Frequency settling time (2) | 40 | 250 |
µs |
|
|
Output port return loss |
12 |
dB |
||
| IF: (Sensor output) | ||||
| Full reflection response amplitude (3) | -12 | -6 | 0 | dBVpp |
| Reflection response amplitude variation | 3 | 3.6 | dB | |
| Sensor performance (uncalibrated): | ||||
| Range measurement variation (4) | 100 | 300 | ppm |
- Over operating temperature range, input voltage variation, aging, shock, and vibration.
- Defined as time elapsed for a signal to settle within 0.1MHz of a 1 MHz frequency step. Settling time is strongly dependent on digital parameters settings within the FMCW module.
- Defined as IF output signal when the complete RF (probing signal) is returned from a target.
- Defined as variation in range measurements over temperature for two targets 5m < separation < 6m apart.
- Average over whole frequency band.
- The IF signal power is measured as a single ended voltage from the IF port. The signal is internally terminated in a 150 Ω resistor.
- Defined as signal level below full reflection response adjacent to detected peak in fourier transformed IF signal.
- Other temperature ranges available upon request.
- According to MIL-STD-202G method 213B.
Typical values, not tested:
| Parameter |
Min. |
Typ. |
Max. |
Unit |
| RF output power | 5 | 10 | 15 | dBm |
| RF output power variation (over frequency) |
5 |
dB | ||
| RF output power variation (over temperature) | 5 |
dB |
||
| Harmonics related to carrier | -20 |
dBc |
||
| Spurious (synthesizer related) (5) | -26 | dBc | ||
| Spurious (not synthesizer related) | -60 | dBc | ||
| SSB phase noise @ 100 kHz from carrier | -67 | dBc/Hz | ||
|
RF to IF conversion efficiency (6) |
-20 |
dB |
||
| Sensor dynamic range (7) | -80 | dBc | ||
| Power consumption | 900 | mW | ||
| Total internal capacitance | 100 | nF |
| Parameter |
Min. |
Max. |
Unit |
| Operational temperature range (8) | -10 | +70 | °C |
| Storage temperature range | -50 | +100 | °C |
| Vibration | TBD | ||
| Shock (9) | 100g 6ms |
Outline Drawing [mm]:
Interfaces: SMA-female Samtec interconnect strips, BBL-121-G-E. Mating connector: SL-series.
| Pin (10) | Description | Specification |
| 23 | Power Supply | +4.0 V (max 4.3V), app. 25 mA |
| 25 | Power Supply | +4.0 V (max 4.3V), app. 25 mA |
| 29 | Power Supply | +4.0 V (max 4.3V), app. 25 mA |
| 20 | Power Supply for synthesizer active loop filter | +10.0 V (max 18V), approx. 1 mA |
| 17 | Power Supply | +3.3V (max 3.6 V), app. 35 mA |
| 13 | Power Supply | +3.3 V (max 3.6 V), app. 10 mA |
| 11 | Clock signal for Synthesizer | 5.0 V ≥ Logic Level High ≥ 2.7 V 0.7 V ≥ Logic Level Low ≥ 0 V Load resistance: 10kΩ |
| 10 | Data signal for Synthesizer | 5.0 V ≥ Logic Level High ≥ 2.7 V 0.7 V ≥ Logic Level Low ≥ 0 V Load resistance: 10kW |
| 9 | Latch/Enable signal for Synthesizer | 5.0 V ≥ Logic Level High ≥ 2.7 V 0.7 V ≥ Logic Level Low ≥ 0 V Load resistance: 10kΩ |
| 7 | Power Supply | +4.0 V (max 4.3V), app. 80 mA |
| 4 | IF (Baseband) Output | DC-coupled, output impedance 150Ω. |



