The information contained herein has been carefully checked and is believed to be accurate; however, no responsibility is assumed for inaccuracies. CAEN RFID reserves the right to modify its products specifications without giving any notice; for up to date information please visit www.caenrfid.com. Preliminary Product Information This document contains information for a new product.
Page 3
Disposal of the product Do not dispose the product in municipal or household waste. Please check your local regulations for disposal/recycle of electronic products.
Evaluation Board The Mod. RHML37XEVB allows managing the Lepton R9100C reader directly via USB interface. This board is particularly suited for Lepton R9100C reader evaluation and SW development purpose. Fig. 1.3: WRHML37XEVBX Evaluation Board for Lepton R9100C Development Kit A development accessories kit (Mod. WRHML37XDKEU, WRHML37XDKUS) is available: The kit includes: •...
Ordering Options Code Description R9100C - Lepton - 30dBm 1-Port RAIN RFID Reader Reader WR9100CXAAAA Module Evaluation WRHML37XEVBX Evaluation Board for R1271C, R3100C, R7100C and R9100C Board R1271C, R3100C, R7100C and R9100C ETSI Dev Kit with WRHML37XDKEU Development antenna, interface, pws and tags (reader not included) R1271C, R3100C, R7100C and R9100C FCC Dev Kit with WRHML37XDKUS antenna, interface, pws and tags (reader not included)
Key Features • RAIN RFID (UHF EPC Class1 Gen2, ISO 18000-63) compliant • Both ETSI and FCC support in the same module • Ultra compact size • Up to 30 dBm (1W) output power • -90 dBm Rx sensitivity, assuming 20 dB antenna return loss •...
An example Lepton R9100C system-level block diagram for an embedded system is shown in Fig. 3.1: Lepton9 R9100C - Example of Block Diagram. This figure shows the electrical connections that may and must be made to control the Lepton R9100C. In the figure, the required connections are illustrated with solid lines.
Fig. 3.2: BSL sequence The BSL program execution starts when TST pin has received a minimum of two positive transitions and if TST is high while /RST rises from low to high. BSL_SEL shall be at high level before BSL starts. Pulses length and distance between edges of all signals shall be 10ms at least.
than the 8 mA sink and source current, the pin is not guaranteed to meet the VOH and VOL specs listed in the § Device Input and Output Specifications paragraph page 17. Excessive current sunk or sourced on the GPIO pins can also cause electrical damage to the device. Warning: Voltages outside of the maximum IO operating voltage range of -0.3 to 4.0 V should not be applied to the UART pins.
Wakeup Pin The WKUP pin is used to wake the device when it is in the Standby or Sleep operating modes. This pin is edge sensitive and will wake the device on a rising edge. The WKUP pin must be logic low in order for the device to re-enter Idle mode after a Sleep wakeup, so it should only be pulsed high to wake up the part.
Pin# Pin Name Pin Type Description RF antenna port Power Ground Digital I/O Reserved for Future Use BSL_SEL Digital Input Boot Strap Loader interface enable signal Power Ground Digital Input TST pin to be used for FW recovery/upgrade UART1-RX Digital Input R9100C UART Rx (Receive) from host UART1-TX Digital Output...
Tab. 3.4: Supply Current Specifications UHF Gen 2 RFID Radio Specifications Parameter Min. Typ. Max. Unit Conditions See § Tab. 2.1: Lepton9 R9100C Technical Frequency Specifications page 9 865.6 867.6 Input impedance Ω Input match 10%PER, assuming 20 dB antenna RL @ 30 dBm...
Device Input and Output Specifications Parameter Min. Typ. Max. Unit Conditions nRST -0.3 Hysteresis voltage Internal pull-up resistor kΩ Reset pulse width μs WKUP -0.3 Hysteresis voltage Internal pull-down resistor kΩ Digital inputs -0.3 Hysteresis voltage Internal pull-down resistor kΩ Digital outputs Drive current (sink or source) UART...
Parameter Min. Typ. Max. Unit Conditions ADC (Pin 13) Resolution Bits Conversion voltage range Sampling rate 0.47 MSPs Total conversion time μsec Power-up time μsec Sampling switch resistance Ω Internal sample and hold capacitance Total unadjusted error ±3.5 ±7.1 Offset error ±3.0 ±5.6 Gain error...
4 LAYOUT AND COMPONENTS Introduction This section describes hardware aspects of embedded RAIN RFID readers based on the Lepton R9100C. PCB Layout for RF 50 Ohm Characteristic Impedance As discussed in paragraph RF Connection page 12, a properly matched RF connection is critical to achieving high performance with Lepton R9100C.
style of transmission line, and its dimensions. The most common, and recommended PCB transmission line scheme is to use a microstrip on the top or bottom layer of the PCB, with a ground plane on the layer immediately adjacent as a return path. The width of this microstrip can then be varied to achieve the desired characteristic impedance.
PCB Footprint Recommended footprint copper and pastemask dimensions are shown in the following: Fig. 4.3: Recommended Etched Copper Footprint – All Pads Fig. 4.4: Pad size LAYOUT AND COMPONENTS - Lepton - Technical Information Manual...
SMT Reflow Information The solder manufacturer’s recommended reflow profile is shown in the following figure: Fig. 4.5: Recommended Solder Reflow Profile for the Lepton R9100C LAYOUT AND COMPONENTS - Lepton - Technical Information Manual...
Moisture Sensitive Level 3 (MSL 3) CAEN RFID srl follows JEDEC standards for moisture classifications. The Lepton R9100C RFID reader is classified as MSL 3. Warning: The damaging effects of moisture absorbed in semiconductor packages during SMT assembly are known. Pay attention to the next paragraphs and follow the instructions to avoid problems.
5 EVALUATION BOARD Introduction Fig. 5.1: WRHML37XEVBX Evaluation Board for R9100C The WRHML37XEVBX Evaluation Board enables quick evaluation and development with Lepton R9100C. It provides an easy way to communicate with the Lepton R9100C via USB-UART or an arbitrary UART host and provides easy access to the inputs and outputs of the device.
Evaluation Board Overview A block diagram of the WRHML37XEVBX Evaluation Board is shown in Fig. 5.2: Evaluation Board Block Diagram. It shows the most notable components and connections on the PCB. The block diagram shows the Lepton R9100C module’s main connections: power, RF, and UART communication. The power for the Lepton R9100C is provided by a +5V AC/DC adapter at DC power jack J13 (inner pin is the GND, outer is the +5V).
Connector Descriptions J4 and J6 are the host USB micro connectors. They allow a PC host to connect to the UART1 and UART2 communication ports of the Lepton R9100C module via the USB-UART ICs U3 and U4 respectively. Please note that such connectors do not provide power to the board. J13 is the power supply connector, the central pin (2.1mm diam.) is the negative terminal.
Evaluation Board Default Configuration In the default configuration of the WRHML37XEVBX evaluation board, the jumpers J1 and J5 should be as follows: J1 – Antenna Selection Jumper – should be in the leftmost position so that the external antenna on connector J2 is selected.
Evaluation Board Layout The layout shows the physical construction of the WRHML37XEVBX evaluation board. The top and bottom layers are shown in Fig. 5.6: Evaluation Board Front and Backside(flipped) Layout. The layout can be downloaded from the Lepton R9100C web page (Lepton R9100C Technical drawing).
Connecting to the Lepton R9100C reader USB Communication Setup Warning: If your PC is running a Windows version older than Windows 10, to correctly operate with the reader, you need to install the Gadget Serial USB driver. You can find it easily via a WEB research.
Page 31
On the main screen click on File → Connect. A Connection window will open. Select the Connection Type (RS232) and specify the RS232 port (COM 9 in this example). In order to connect to the module via Easy Controller software the serial settings shall be added to the COM port address since Lepton R9100C module has a different baudrate (921600bps) from default value used by the SW: To verify if the connection with the reader has been established, check the green dot on the bottom...
Page 32
Place one or more tags near the antenna connected to the reader, click on Start Inventory and see tags information displayed on the main window: For more information on the CAEN RFID Easy Controller for Windows application usage, please refer to the relevant user manual: you can download it from the Lepton R9100C web...
6 REGULATORY COMPLIANCE RoHS Directive The Lepton R9100C RFID Reader is compliant with the EU Directive 2015/863/EU (RoHS3) and the UK Regulation 2012 SI 2012/3032 (RoHS) on the Restriction of the Use of certain Hazardous Substances in Electrical and Electronic Equipment. REGULATORY COMPLIANCE - Lepton - Technical Information Manual...
Need help?
Do you have a question about the Lepton9 R9100C and is the answer not in the manual?
Questions and answers