TIDC-WMBUS-868MHZ

ETSI Cat2 Receiver Capable wM-Bus 868 MHz RF Subsystem for Smart Utility Meter & Heat Cost Allocator

Design files

TIDC-WMBUS-868MHZ

Design files

Overview

This reference design describes an ETSI Cat. 2 receiver-capable RF subsystem for smart meters, fully compliant with the most popular wM-Bus S, T and C-modes at 868 MHz as per EN13757-4:2014. The SimpleLink RF transceiver device delivers market leading blocking, selectivity and RX sensitivity numbers in wM-Bus applications, such as bi-directional flow meters, e-meters and heat cost allocators. This cost-optimized design handles the worst case frequency offset of +-60ppm in S2-mode by utilizing an inexpensive XTAL component. Neither an external SAW filter nor costly TCXO component are needed to meet the specification of the wM-Bus modes @ 868 MHz. Additionally, this design uses a ultra-low Iq DC/DC converter with dynamically adjustable output voltage, enables a new level of optimization of the design's power consumption, significantly extending the battery lifetime.

Features

Market leading blocking, selectivity and RX sensitivity subsystem for wM-Bus at 868MHz
Fully compliant with the wM-Bus requirements for S2, T2-Meter and C2-Meter modes
DC/DC converter with adjustable Vout and 360nA Iq current
No costly SAW filter and TCXO required
Two pin-compatible IPC options for Balun + Matching available
This circuit design is tested and includes test firmware, SRF7 Studio GUI configuration files and getting started guide

Industrial

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Design files & products

Design files

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Design guide — TIDC-WMBUS-868MHZ

TIDU582.PDF (1883 KB)

Reference design overview and verified performance test data

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Assembly drawing — TIDC-WMBUS-868MHZ

TIDRBM7.ZIP (78 KB)

Detailed overview of design layout for component placement

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Bill of materials (BOM) — TIDC-WMBUS-868MHZ

TIDRBM8.PDF (99 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

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CAD/CAE symbol — TIDC-WMBUS-868MHZ

TIDRBM5.ZIP (141 KB)

Files used for 3D models or 2D drawings of IC components

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Gerber file — TIDC-WMBUS-868MHZ

TIDC741.ZIP (109 KB)

Design file that contains information on physical board layer of design PCB

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PCB layout — TIDC-WMBUS-868MHZ

TIDRBM9.PDF (280 KB)

PCB layer plot file used for generating PCB design layout

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Schematic — TIDC-WMBUS-868MHZ

TIDRBM6.PDF (49 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

TPS62740 — 2.2V-5.5V input, ultra-low-power 300mA step-down buck DCDC converter with 360nA Iq

Data sheet: PDF | HTML

Sub-1 GHz transceivers

CC1200 — Low power and high performance wireless transceiver

Data sheet: PDF | HTML

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Hardware

Daughter card

CC1200EMK-868-930 — CC1200 Evaluation Module Kit 868-930 MHz

The CC1200 Evaluation Module Kit for 868-930 MHz can be used in conjunction with the CC1200 Development Kit to evaluate the operation of the CC1200 in the mentioned frequency range. The CC1200DK is required for operation and needs to be ordered separately.

Supported products & hardware

Hardware development

Reference design

TIDC-WMBUS-868MHZ — ETSI Cat2 Receiver Capable wM-Bus 868 MHz RF Subsystem for Smart Utility Meter & Heat Cost Allocator

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CC1200EMK-868-930 — CC1200 Evaluation Module Kit 868-930 MHz

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Reference design

TIDC-WMBUS-868MHZ — ETSI Cat2 Receiver Capable wM-Bus 868 MHz RF Subsystem for Smart Utility Meter & Heat Cost Allocator

TI’s Standard Terms and Conditions for Evaluation Items apply.

Software

Support software

TIDC740 — wM-Bus Smart Meter Subsystem at 868 MHz Software

Supported products & hardware

Hardware development

Reference design

TIDC-WMBUS-868MHZ — ETSI Cat2 Receiver Capable wM-Bus 868 MHz RF Subsystem for Smart Utility Meter & Heat Cost Allocator

Download options

TIDC740 — wM-Bus Smart Meter Subsystem at 868 MHz Software

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Latest version

Version: 01.00.00.00

Release date: Oct 28, 2014

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wM-Bus Smart Meter Subsystem at 868 MHz Software (zip) — 3981 K

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Reference design

TIDC-WMBUS-868MHZ — ETSI Cat2 Receiver Capable wM-Bus 868 MHz RF Subsystem for Smart Utility Meter & Heat Cost Allocator

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc740 or www.ti.com/lit/xx/tidc740/tidc740.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC740. Please update any bookmarks accordingly.

Technical documentation

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	Type	Title		Date
*	Design guide	wM-Bus Smart Meter Subsystem at 868 MHz Design Guide		Oct 17, 2014

Related design resources

Software development

APPLICATION SOFTWARE & FRAMEWORK

WMBUS — Wireless M-bus protocol software

Disclaimer

See the important notice and disclaimer covering reference designs and other TI resources.

TIDC-WMBUS-868MHZ

ETSI Cat2 Receiver Capable wM-Bus 868 MHz RF Subsystem for Smart Utility Meter & Heat Cost Allocator