Integration Manual HW 86022 FHSS Embedded Radio Module Version 0.
This document and its contents shall not be reproduced or transferred in any form without express permission. Compensation will be claimed for any infringement. All rights reserved in the event of patenting or registration of utility models. © Höft & Wessel AG 2008 Subject to amendment, errors excepted HW86022_IM_094_FCCa.
CONTENTS Contents 1. Preface ...................................................................................................................................................... 4 1.1 1.2 1.3 2. Important User information..................................................................................................................... 5 2.1 2.2 3. About this document...........................................................................................................................
PREFACE 1. Preface Dear customer, thank you for choosing the HW 86022 FHSS radio module. You have made a good choice, since HW 86022 is a powerful and very versatile product that easily adds 2.4 GHz FHSS (Frequency Hopping Spread Spectrum) communication to your application. Höft & Wessel aims for best customer satisfaction. In case of any problems with this manual or with our products please do not hesitate to contact us.
IMPORTANT USER INFORMATION 2. Important User information NOTE: This equipment makes use of radio spectrum and emits radio frequency energy. Care should be taken when the device is integrated in systems. Make sure that all specification within this document are followed, especially concerning operating temperature and supply voltage range. Refer to national regulations of the region where the HW 86022 module shall be operated and make sure the national requirements are fulfilled.
IMPORTANT USER INFORMATION 2.1 Note for Users in Canada General Notes: Operation is subject to the following two conditions: (1) (2) this device may not cause harmful interference, and this device must accept any interference, including interference that may cause undesired operation of the device. To reduce potential radio interference to other users, the antenna type and its gain should be chosen so that the equivalent isotropically radiated power (e.i.r.p.
IMPORTANT USER INFORMATION 2.2 Note for Users in the USA General Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
INTRODUCTION 3. Introduction The FHSS radio module HW 86022 is a highly versatile and powerful engine for industrial applications. It is based on DECT technology, but operates on the 2.4 GHz ISM band. It provides a complete radio according to 2.4 GHz FHSS standard together with a combined DECT baseband and application processor interfacing the host system. 3.1 General description Built around a 16-bit high-speed low-power RISC microcontroller and a highly integrated state-of-theart 2.
CONFORMITY 4. Conformity The HW 86022 module complies with the essential requirements of §3 and the other relevant provisions of Article 3 of the R&TTE directive when used for its intended purpose and is labelled with the CE conformity mark. It has obtained a limited modular approval according to FCC (USA) and IC (Canada) regulations.
HARDWARE DESCRIPTION 5. Hardware Description 5.1 Mechanical Characteristics 5.1.1 Dimensions Parameter Length Width Height 5.1.2 unit mm mm mm Typ. 8.3 unit g Weight Parameter Weight 5.1.3 Typ. 52.0 37.0 3.2 Image Figure 2: HW 86022 top and bottom view 10 0.94 • 22.1.
HARDWARE DESCRIPTION 5.1.4 Mechanical Drawing Figure 3: Mechanical drawing 0.94 • 22.1.
HARDWARE DESCRIPTION 5.2 Electrical Characteristics 5.2.
HARDWARE DESCRIPTION 5.2.2 Absolute Maximum Ratings Parameter V3P3 VBATP Iiosum Iio Vdigin Vanain Iioprot Imicprot Remarks Conditions Digital supply voltage RF supply voltage Current through all IO pins Current through IO pin Max Voltage on any digital inputs V3P3>=3.3V V3P3<3,3V Max voltage on any analogue inputs Max current through any pin’s protection diodes to V3P3 Max current through MIC input pin’s protection diodes Min -0.3 -0.3 -0.3 -0.3 -0.3 Max 4.0 4.6 90 20 3.6 V3P3+0.3 2.
HARDWARE DESCRIPTION 5.2.3.2 5.2.3.3 Digital I/O Parameter Vin_dig_high Vin_dig_low Remarks Digital in high level Digital in low level Vout_dig_low_ 100µ Vout_dig_low_ 8m Vout_dig_high_ 100µ Vout_dig_high_ 8m Digital out low level Digital out low level Digital out high level Digital out high level Conditions Min 2.0 Max 100µA 1.0 (GPIO9:0. 6) 0.1 8mA 0.6 unit V V V V 100µA 3.0 V 8mA 2.4 V Conditions Min Typ. 230.4 115.2 57.6 38.4 19.2 9.
HARDWARE DESCRIPTION 5.2.3.5 Radio Frequency Interface Parameter Frequency range Channel spacing Hopping channels Frequency offset Frequency drift Transmitter output power Receiver sensitivity Antenna ports impedance Isolation between antenna ports Modulation Remarks Conditions Air data rate User data rate Typ. Max 2483.5 unit MHz 1.728 MHz 45 BER < 10e-3 -50 0 +50 kHz -16 17.0 -30 18.0 -41 19.
HARDWARE DESCRIPTION 5.2.3.6 Voice interface 5.2.3.6.1 Microphone bias Parameter Vref Vrefp_acc Vrefn_m Vrefp_load c Rvrefp Nrefp Srefp Ivrefp Remarks Differential voltage between MICP and MICN pins Accuracy of MICP voltage Voltage from MICN to GND MICP load capacitance MICP output resistance MICP peak noise Conditions Trimmed Min -1 Max unit V +1 20 % V pF 15 -80 Ohm dBV 600 dB µA 0 10 -100 CCITT weighted MICP power supply rejection ratio MICP output current Typ. 1.
HARDWARE DESCRIPTION 5.2.3.6.3 Speaker output Parameter Differential RMS output voltage between VXP and VXN Differential Output Impedance between VXP and VXN Load resistance Load capacitance Speaker gain Absolute speaker gain accuracy 5.3 Remarks Conditions 0dBm0 at codec input = -3.14dB from max PCM value, speaker gain = 0.0dB, load circuit acc. to section 0, @1020Hz Min Typ. 0.69 Max unit V 2 5 Ohm 30 RL = 00 Rl < 1kohm Software controlled Ohm 100 30 2.2 +0.75 -12 -0.
HARDWARE DESCRIPTION 5.4 Interface Description 5.4.1 System connector The interface to the host system is implemented as a 50 pin 1.27mm grid female connector. The part used on the HW 86022 module is a Plastron SPNBF-50-B-0, which is compatible to Samtec CLP125-02-G-D-BE. It is recommended to connect the module with a pin header by bottom entry method, i.e. through the printed board. This allows for best space saving and the RF connectors are accessible in mounted position.
HARDWARE DESCRIPTION 5.4.2 UART Interface The HW 86022 module provides a fully featured RS-232 serial interface. All interface signals are 3.3V CMOS level and are active at low state. A V.24 line driver must be provided in order to connect to a standard V.24 device, e.g. a PC. NOTE! Connecting the module to a V.24 line without external line drivers may damage the module.
HARDWARE DESCRIPTION 5.4.3 SPI Interface The Serial Programming Interface provides a performant serial interface to control the module and for user data transfer. The module will act as SPI master device and therefore control SPI clock. Signal SPIDO SPIDI SPICLK I/O O I I/O Description SPI data out SPI data in SPI clock This feature is not supported in standard firmware release. 5.4.4 Voice Interface Analogue voice interface is provided by hardware.
HARDWARE DESCRIPTION VXOP VXON R1=220Ω MICBP C1=30nF R3=500Ω VXIP C4=47µF C3 VXIN C2=30nF R4=500Ω MICBN R2=220Ω Figure 6: Electrical connection of microphone and speaker 5.4.5 ADC/PWM Interface This interface is used to capture and reproduce analogue signals with low bandwidth. Signal ADC PWM I/O I O Description analogue / digital converter in pulse width modulated output This feature is not supported in standard firmware releases. 0.94 • 22.1.
HARDWARE DESCRIPTION 5.4.6 Reset Interface The reset interface is used to reset the HW 86022 module and its external peripherals. Signal RSTBI I/O I RSTNO BOOT0 BOOT1 BOOT2 BOOT3 I/O I I I I Description Reset input, ac-coupled, triggers on falling edge 1 Reset output, active low, Z=3.
HARDWARE DESCRIPTION 5.4.6.1 Reset timing (external reset) In order to make sure that an external reset is detected correctly by the firmware, the host must pull RSTBI down sufficiently long time. The exact timing requirements are indicated in Figure 7. RSTBI RSTNO BOOTx signals sampled Program Execution TRS TSH TRA TSD Figure 7: Reset Timing Parameter TRA TRS TSD TSH min. 100 ms 18 µs 100 µs max.
HARDWARE DESCRIPTION 5.4.6.2 Short Reset A short reset is a low-active RSTBI pulse that is shorter than the RSTNO pulse. RSTBI RSTNO Program Execution TRS TRA TSR Figure 8: Short Reset Parameter TSR min. 5ms max. 50ms Although it is triggered by the RSTBI signal the firmware of the HW 86022 treats a short reset as an internal reset. The host hardware may use this feature to emulate a power-up reset to the HW 86022.
HARDWARE DESCRIPTION The evaluation kit HW 86916 includes adapter boards that support firmware download and configuration mode reset from a standard PC COM port as well as the required software tools. 5.4.6.4 Precautions to avoid Reset Problems The host hardware must assure an appropriate environment that avoids unwanted resets. The reset behaviour is a main source of integration problems and requires specific attention. Please make sure that the following conditions are fulfilled during operation: 5.4.
HARDWARE DESCRIPTION 5.4.10 LED interface LED0 and LED1 outputs are provided. They may be used to control two LEDs to display connection and configuration mode and data activity. Signal LED0 State LOW HIGH LOW HIGH LED1 Description LED0 off LED0 on LED1 off LED1 on LED0 LED1 Meaning • • Power off condition or firmware download ☼☼•• • Power on, not connected state related to higher protocol level (slow blink) ☼ • Connection to base station established, flickers while data is transmitted.
HARDWARE DESCRIPTION 5.4.12 RF Interface RF Interface provides two antenna connections. The used antenna ports 0 or 1 can be configured by software. In addition the module supports antenna diversity. During reception of data, the module measures the signal strength on both antennas and activates the antenna with highest level for reception of a data packet.
HARDWARE DESCRIPTION NOTE: Do not use the through hole connection and the coaxial connector of one antenna port at the same time. NOTE: Use ESD safe environments for soldering on antenna ports. The HW 86022 module comes with one wire antenna mounted on Antenna 1 solder through hole. Figure 10: HW 86022 with wire antenna mounted on ANT1 port. Wire antenna specification: Length: Diameter: Projection top: Projection bottom: 28 0.94 • 22.1.2009 30 mm max. 1.2 mm typ. 3.0 mm max. 2.0 mm max.
SPECIFIC INTEGRATION TOPICS 6. Specific Integration Topics 6.1 Power Supply A limited power source acc. to EN 60950-1, section 2.5, shall be used to supply the module. There a two power supply rails: V3P3 supplies digital section including processor, memories and DECT baseband with a medium current draw, while VBATP supplies the RF transceiver and power amplifier with a high peak pulsed current draw.
