User's Guide

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FUJITSU COMPONENT LIMITED

FUJITSU Component Wireless Module

Doppler Radar Sensor

FWM7RAZ01 User’s Guide

Rev 1.6

Dec 12, 2019

FUJITSU COMPONENT LIMITED

The above Product is designed, developed and manufactured as contemplated for general use,

including without limitation, general office use, personal use, household use, and ordinary industrial

use, but is not designed, developed and manufactured as contemplated (1)for use accompanying

fatal risks or dangers that, unless extremely high safety is secured, could lead directly to death,

personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility,

aircraft flight control, air traffic control, mass transport control, medical life support system, missile

launch control in weapon system), or (2)for use requiring extremely high reliability (i.e., submersible

repeater and artificial satellite), hereinafter referred to as "High Safety Required Use".

You shall not use this Product without securing the sufficient safety or reliability required for the High

Safety Required Use. If you wish to use this Product for High Safety Required Use, please consult

with our sales representatives in charge before such use.

Summary of content (29 pages)

PAGE 1
FUJITSU Component Wireless Module Doppler Radar Sensor FWM7RAZ01 User’s Guide Rev 1.
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Contents 3-1. Gain between power feed point of Tx and Rx (Propagation Loss) .................... 4 3-2. Gain and Directional characteristics of Tx and Rx antenna ............................... 5 3-3. Gain of Rx circuitry ............................................................................................... 6 3-4. Implementation of external amplifier (example) .................................................. 7 6-1. Output signal waveform of IF(I-signal) and IF(Q-signal) ........................
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Introduction In this users’ guide, the information of the parameter to be noticed and the procedure to determine the external components to be implemented to use Doppler Radar Sensor are described. Please test and evaluate your actual use condition since the contents of this users’ guide does not cover the all the condition of the actual use. Please refer to “Doppler Radar Sensor FWM7RAZ01 Data Sheet” for the detailed FWM7RAZ01 specifications. Block diagram Fig. 1 shows the block diagram of FWM7RAZ01.
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Signal gain 3-1. Gain between power feed point of Tx and Rx (Propagation Loss) This Doppler Radar Sensor receive the radio wave, which the Doppler Radar Sensor transmitted, reflected from object. The attenuation at the reflection depends on the cross section and material of the object.
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（example） Parameter Result 𝝈 = 𝟎. 𝟓𝒎𝟐 𝐚𝐬 𝐚𝐝𝐮𝐥𝐭 𝐦𝐚𝐧, 𝑹 = 𝟏𝟎𝒎, 𝑳𝒔 = 𝟏 (= 𝟎𝒅𝑩) 𝑷𝒓 = −𝟗𝟏. 𝟏𝒅𝑩𝒎 = 𝟕. 𝟕𝟒 × 𝟏𝟎−𝟏𝟑 [W] The receiving signal level is subject to the reflection by object direction or side wall. Please test and evaluate under condition of actual use. 3-2. Gain and Directional characteristics of Tx and Rx antenna Antenna on FWM7RAZ01 is the directional type which gain is 12dBi max. Fig. 3 shows Radiation pattern 2×4 Patch Antenna Gtx = Grx = +12 dBi (max) Z Y X X Z-X plane@24.1GHz Z-Y plane@24.
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  The directivity is the maximum in Z-direction. Please embed FWM7RAZ01 according to the direction to detect. The misdetection will occur if there is a vibrating or moving obstacle between antenna and object. The radio characteristics is influenced if there is a moving metal or radio wave absorbent. Please consider these factors to determine the layout. 3-3. Gain of Rx circuitry Voltage gain from power feed point of Rx antenna(LNA input) to IF amplifier output is calculated by the formula (2).
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3-4. Implementation of external amplifier (example) Terminals of IF(I) and IF(Q) output can be connected to the eternal amplifier directory(DC connection). Maximum output is 3.3Vp-p (Bias voltage = 1.65Vdc). FWM7RAZ01 Vif2 H-SFT DAC L-SFT Gext MCU Vcc /CE External Amps Tx Band Control LDO LPF EEPROM PA VCO 90° Transceiver f1 Vif Vif2 IF1 Rx I IF-AMP Vif Gext LNA Q IF2 Fig.
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𝑉𝑖𝑓_𝑛𝑜𝑖𝑠𝑒 Calculation example IF band width: B Converted speed 1Hz - 1kHz 1Hz - 10kHz 1Hz - 100kHz Noise level: Vif_noise 0.022 - 22km/h 0.022 - 223km/h 0.022 - 2234km/h 0.6 uVrms 1.8 uVrms 5.6 uVrms It is recommended to use the amplifier with the noise as low as possible since the noise of the external amplifier connected to IF1/2(I/Q) terminals is added. Relation between IF signal frequency and object speed The faster Object moves, the bigger the frequency difference between Tx and Rx.
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I Q (Tx radio frequency) > (Rx radio frequency) → Q lag behind I by 90 degrees (Tx radio frequency) = (Rx radio frequency) Q → Neither Q nor I has signal (=DC） I Both Q and I has 0Hz when movin Fig. 6 Wave forms of “I” and ”Q” As shown in Fig.6, by Doppler effect, when Rx frequency get higher than Tx frequency, Qsignal leads to I-Signal by 90 degrees, when lower, Q-signal lags to I-signal by 90 degrees. This correlation is same for different frequency.
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The waveform above shows the back-and-forth movement as below. ① The object is approaching to FWM7RAZ01 with decreasing the speed. (approaching) ② The speed gets Zero at the center (stop) ③ The object is receding with increasing the speed to opposite direction. (receding) The approaching/receding can be judged by Plus/Minus of the phase difference 90 degrees between I-signal and Q-signal. In the measurement above Fig.
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[for ISED] [English] This device complies with Innovation, Science and Economic Development Canada’s licence-exempt RSSs. Operation is subject to the following two conditions: (1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired operation of the device. [French] Cet appareil est conforme aux flux RSS exemptés de licence d'Innovation, Science et Développement économique Canada.
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OEM Warning statement (Module) The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC/IC identification number： [English] If using a permanently affixed label, the modular transmitter must be labeled with its own FCC/IC identification number, and, if the FCC/IC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also dis
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Additional testing, Part 15 subpart B disclaimer The final host / module combination need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part15 digital device.
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Revision history Rev. 1.3 Date Remark Nov 7, 2018 Created first edition based on Japanese edition, revision 1.3 dated Nov 07, 2018 Section 2, 3: Changed to the characters which can search for the characters of the Fig.1,2,4 and 5. Section 3-4: Revised description of the Maximum output of Vif. Other Changes: The following description has been revised. “power supply point” => “power feed point” “broken line” => “dotted line” 1.4 Apr 17, 2019 1.
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Doppler Radar Sensor FWM7RAZ01-2003xx(for USA/Canada) Data Sheet Rev 0.2(Draft) Mar.
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Introduction ................................................................................................................ 3 Features ...................................................................................................................... 3 Block diagram ............................................................................................................ 3 Pin Description ..........................................................................................................
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Introduction This data sheet is written for FWM7RAZ01 as a Doppler Radar Sensor. Features FWM7RAZ01 is a Doppler Radar Sensor and suitable for the compact and low power applications used 24GHz radio band. This main specifications are following. Host Interface Compliant : IF (I/Q), PIO : FCC Part 15.245 ISED RSS-210 Issue 9, Annex F : 24.075GHz - 24.175GHz : 3 channels selectable (24.110GHz, 24.126GHz, 24.142GHz) : Doppler : 2x4 Patch Array Antenna : 30 x 44 x 9.5mm : DC+3.4V~5.
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Pin Description Pin No. Pin Name 1 2 Rev1 /CE 3 4 5 6 7 8 9 10 11 12 No.1 No.12 No.6 No.7 I/O In IH Status Vcc > 3.4V /CE=L /CE=H Hi-Z Hi-Z Pull-up Pull-up Description Reserved pin (Not connected) Enable (Low Active) to Vcc to Vcc This pin is pulled up to Vcc by 10KΩ internally. Vcc Po Power-Supply DC+3.4~+5.
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Electrical Characteristics 5-1. Absolute Maximum Ratings Items Symbol Vcc Power-supply voltage Vcc max /CE input voltage Vce max H-SFT, L-SFT Vsft max input voltage *1,2 Storage temperature Tstg max *1: Storage temperature in product only *2: No condensation Min -0.3 -0.3 Typ. - Max 6.0 Vcc Unit V V -0.3 - Vcc V -40 - +85 degC Min 3.4 -20 Typ. 3.5 +25 Max 5.5 +85 Unit V degC 5-2. Operating Conditions Items Power supply voltage Ambient temperature* *No Symbol Vcc Ta condensation 5-3.
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5-4. RF Transmitter characteristics 3.4V
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5-6. Antenna characteristics Items Full beam width @-3dB Condition Min Typ. Max Unit azimuth horizontal - 45 - ° elevation vertical - 38 - ° 24.
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Antenna Gain (dBi) -5 -10 20 15 -5 -10 -180 -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 15 -180 -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 Antenna Gain (dBi) 20 Z 10 5 0 X Angle(degree) -15 -20 -25 -30 -35 -40 -45 Y 10 5 0 Z Angle(degree) -15 -20 -25 -30 -35 -40 -45 8 FUJITSU COMPONENT L
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5-7. Power-On/Off Sequence 5-8. Current consumption Item Current consumption 3.4V
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Mechanical Characteristics 6-1. Appearance and Dimensions Unit: mm 6-2. Pin socket Square pillar pin-header (2.54mmpin-to-pin pitch) (Reference pins socket models) HKP-6FDS2 : Made by Honda Tsushin Kogyo Co., Ltd. FSS-41085-06 : Made by Hirosugi-Keiki Co., Ltd.
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6-3. Marking (TBD) Marking Samples (1) (3) (2) (4) (5) (1) Module Name ： FWM7RAZ01S* * Suffix: S1~ is just for the sample.
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6-4. Soldering Iron Condition FWM7RAZ01 does not support to reflow soldering nor flow soldering. When the pin-socket is not used (mount on PCB directly), please follow below conditions Iron Temperature : 350 degC or lower Ironing time : Within 3 seconds for 1pin Packing specifications 7-1.
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7-2. Tray packing These contain up to 9 trays (included a tray as a top-cover) stacked in the packing box.
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7-3. Label Example of Label Outer Box Label Storage condition It is recommended that the modules is stored at 5~30 degC and < 60% RH, and is used within 6 months from the delivery date.
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Revision History Revision Contents change Date 0.1 (Draft) Created draft edition. Dec.21, 2018 0.2 (Draft) Section 5-1: Added the notes of Storage temperature. Section 5-2: Added the note of Ambient temperature. Section 5-3: Revised the Items and condition of H-SFT, L-SFT. Revised Specification of VIL in /CE Digital input. Added the condition of IIL in /CE Digital input. Added the Specification of IIH in /CE Digital input. Added the internal equivalent circuits at L-SFT,H-SFT and /CE pins.