RFM DNT90 Series Integration Manual

900 mhz spread spectrum wireless transceivers
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DNT90 Series
900 MHz Spread Spectrum
Wireless Transceivers
Integration Guide
www.RFM.com
Technical support +1.678.684.2000
Page 1 of 82
© 2010-2012 by RF Monolithics, Inc.
E-mail:
tech_sup@rfm.com
DNT90 Integration Guide - 05/10/12

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  • Page 1 DNT90 Series 900 MHz Spread Spectrum Wireless Transceivers Integration Guide www.RFM.com Technical support +1.678.684.2000 Page 1 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 2 Important Regulatory Information RFM Product FCC ID: HSW-DNT90 IC 4492A-DNT90 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 pro- tection against harmful interference in a residential installation.
  • Page 3 (e.i.r.p.) is not more than that permitted for successful communication. See Section 6.8 of this manual for regulatory notices and labeling requirements. Changes or modifica- tions to a DNT90 not expressly approved by RFM may void the user’s authority to operate the module. www.RFM.com Technical support +1.678.684.2000 Page 3 of 82 ©...
  • Page 4: Table Of Contents

    Mounting and Enclosures ......................31 Labeling and Notices ....................... 32 DNT90 Protocol-formatted Messages .................... 33 Protocol Formats ........................33 Message Types ........................33 Message Format Details ......................34 www.RFM.com Technical support +1.678.684.2000 Page 4 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com...
  • Page 5 Technical Support ........................74 10.3 DNT90/DNT90A Mechanical Specifications ................75 10.4 DNT90 Development Board Schematic .................. 79 11.0 Warranty ............................82 www.RFM.com Technical support +1.678.684.2000 Page 5 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 6: Dnt90 Introduction

    This allows the signal to be reconstructed even though part of it may be lost or corrupted in transmission. www.RFM.com Technical support +1.678.684.2000 Page 6 of 82 ©...
  • Page 7: Frequency Hopping Versus Direct Sequence

    Forms of spread spectrum - direct sequence and frequency hopping Figure 1.1.2 www.RFM.com Technical support +1.678.684.2000 Page 7 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 8: Dnt90 System Overview

    Point-to-point systems are also used to transmit switch positions or analog signals from one location to another. Figure 2.1.1 www.RFM.com Technical support +1.678.684.2000 Page 8 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 9: Point-To-Multipoint Systems

    The trade-off in store-and-forward systems is longer delivery times due to receiving and retransmitting a message several times. Store-and-forward systems are especially useful in applica- tions such as agriculture where data is only collected periodically. www.RFM.com Technical support +1.678.684.2000 Page 9 of 82 ©...
  • Page 10: Rf Channel Access

    If a child radio does not see its address in the next beacon following its transmission, it again randomly selects an open slot and retransmits its data. During times when there are no open slots, a child radio www.RFM.com Technical support +1.678.684.2000 Page 10 of 82 ©...
  • Page 11: Dnt90 Addressing

    When a router or remote has collected a full set of cycled parameters, it can issue an optional initial heartbeat message and then optional periodic heartbeat messages which allow an application to maintain the status of all routers and remotes in its DNT90 system. www.RFM.com Technical support +1.678.684.2000 Page 11 of 82 ©...
  • Page 12: Fast Linking Techniques

    For example, it is possible to set up transparent peer-to-peer routing between two remotes in a point-to-multipoint or store-and-forward system by loading specific MAC addresses in each radio’s remote transparent destination address. www.RFM.com Technical support +1.678.684.2000 Page 12 of 82 ©...
  • Page 13: Dnt90 Application Interfaces

    TxData message. The DNT90 event timer triggers sending the stored command to the DNT90’s slave. The stored command can be up to 16 bytes in length. Figure 3.2.1 www.RFM.com Technical support +1.678.684.2000 Page 13 of 82 ©...
  • Page 14 D N T 9 0 / H O S T _ R T S / H O S T _ C T S D A V Figure 3.2.3 www.RFM.com Technical support +1.678.684.2000 Page 14 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com...
  • Page 15 L e n g t h B y t e 0 x F B S t a r t o f M e s s a g e Figure 3.2.5 www.RFM.com Technical support +1.678.684.2000 Page 15 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 16: Digital I/O

    88.9% of full scale. The ADC channels are read each ADC sample interval, which is configurable. High and low measurement thresholds can be set for each ADC channel to trigger I/O event reporting messages. www.RFM.com Technical support +1.678.684.2000 Page 16 of 82 ©...
  • Page 17: I/O Event Reporting And I/O Binding

    I/O binding cannot be used in a DNT90 when SPI slave mode is enabled or differential ADC mode is used. See Section 5.4 for recommendations on configuring I/O event reporting and binding, and Sections 7.4.6 and 7.4.7 for detailed information on I/O reporting and binding parameters. www.RFM.com Technical support +1.678.684.2000 Page 17 of 82 ©...
  • Page 18: Dnt90 System Configuration

    3. Set the MemorySave parameter in Bank 0xFF to 0xD2, which will save the DeviceMode parame- ter to EEPROM and reset the module, enabling base operation. 4. All other parameters may be left at their default values. www.RFM.com Technical support +1.678.684.2000 Page 18 of 82 ©...
  • Page 19: Configuring A Customized Point-To-Point Or Point-To-Multipoint System

    Most applications will require only a few of these parameters be changed from their default values. But for those applications that need them, RFM recommends the following con- figuration sequence. Skip the configuration steps where the default parameter value is satisfactory.
  • Page 20: Configuring A Store-And-Forward System

    1. Configure the DNT90 radios designated to be routers by setting the DeviceMode parameter in Bank 0 to 0x02. 2. Enable store-and-forward operation on all system radios by setting the Store&ForwardEn parameter in Bank 0 to 0x01. www.RFM.com Technical support +1.678.684.2000 Page 20 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 21: Slot Buffer Sizes, Number Of Slots, Messages Per Hop And Hop Duration

    MsgsPerHop parameter value. Each message in the transmit buffer occupies nine header bytes plus the payload. For example, a child www.RFM.com Technical support +1.678.684.2000 Page 21 of 82 ©...
  • Page 22 The default BSS is 40 bytes, number of slots is 3 and hop duration is 20 ms. These parameter settings provide a 25 byte RSS. These default settings are suitable for point-to-point and small to medium point- to-multipoint systems operating with protocol-formatted and/or transparent messages. To accommodate www.RFM.com Technical support +1.678.684.2000 Page 22 of 82 ©...
  • Page 23: Dnt90 Application Interface Configuration

    3. Enable/disable serial port hardware flow control as required by setting the GpioAlt parameter in Bank 6. Hardware flow control is disabled by default, but is recommended when operating at higher baud rates and/or sending large blocks of data. www.RFM.com Technical support +1.678.684.2000 Page 23 of 82 ©...
  • Page 24: Configuring The Spi Port

    3. If differential ADC mode is selected, set the desired ADC preamplifier gain for each ADC channel with the AdcGainCh0 and AdcGainCh1 parameters in Bank 6. The default gain is 1. Note that the full scale output voltage from the preamplifier is 2.4 V. www.RFM.com Technical support +1.678.684.2000 Page 24 of 82 ©...
  • Page 25: Configuring I/O Event Reporting And I/O Binding

    The ADC and DAC channels are factory calibrated. It may be desirable to fine tune these calibrations after the DNT90 has been integrated with the customer’s hardware in some applications. For analog calibration support, contact RFM technical support. 5.5 Configuring I/O Event Reporting and I/O Binding 1.
  • Page 26: Configuring Sleep Mode

    ACK, processing a message addressed to it, or receiving a serial or SPI message by setting the Wake-ResponseTime parameter. The default response time is 500 ms. Note that the setting of this parameter is overridden by some GpioEdgeTrigger parameter settings. www.RFM.com Technical support +1.678.684.2000 Page 26 of 82 ©...
  • Page 27: Dnt90 Hardware

    R e g Figure 6.0.1 The major components of the DNT90 include an RFM TRC103 900 MHz FHSS transceiver and a low cur- rent 8-bit microcontroller. The DNT90 operates in the 902 to 928 MHz ISM band. There are four se- lectable hopping patterns providing compatibility with frequency allocations in North America, South America and Australia.
  • Page 28: Electrical Specifications

    Remote, Linked, No Data Remote, Continuous Data Stream Sleep Current µA Operating Temperature Range Operating Relative Humidity Range (non condensing) Table 6.1.2 www.RFM.com Technical support +1.678.684.2000 Page 28 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 29: Module Pin Out

    SPI clock signal. This pin is an output when operating as a master, and an input when operating as SCLK a slave. www.RFM.com Technical support +1.678.684.2000 Page 29 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 30: Antenna Connector

    For FR-4 type circuit board materials (dielectric constant of 4.7), the width of the stripline is equal to 1.75 times the thickness of the circuit board. Note that other cir- www.RFM.com Technical support +1.678.684.2000 Page 30 of 82 ©...
  • Page 31: Power Supply And Input Voltages

    Metal enclosures are not suit- able for use with internal antennas as they will block antenna radiation and reception. Outdoor enclosures must be water tight, such as a NEMA 4X enclosure. www.RFM.com Technical support +1.678.684.2000 Page 31 of 82 ©...
  • Page 32: Labeling And Notices

    WARNING: This device operates under Part 15 of the FCC rules. Any modification to this device, not expressly authorized by RFM, Inc., may void the user’s authority to operate this device. This apparatus complies with Health Canada’s Safety Code 6 / IC RSS 210.
  • Page 33: Dnt90 Protocol-Formatted Messages

    0x20 in the high nibble of the type byte. If multiple arguments are to be provided, they are to be concate- nated in the order shown in Section 7.3 below. Little-Endian byte order is used for all multi-byte www.RFM.com Technical support +1.678.684.2000 Page 33 of 82 ©...
  • Page 34: Message Format Details

    Length 0x01 = Number of bytes in message following this byte 0x02 Packet Type 0x10 = EnterProtocolModeReply Table 7.3.3 www.RFM.com Technical support +1.678.684.2000 Page 34 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 35 Register bank number 0x05 Register Size Register size in bytes, only one parameter at a time (wrong register size will produce an error response) Table 7.3.7 www.RFM.com Technical support +1.678.684.2000 Page 35 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com...
  • Page 36 Destination MAC address, in Little Endian byte order 0x06 - 0x72 Tx Data Up to 109 bytes of data to Base, or 105 bytes from Base Table 7.3.11 www.RFM.com Technical support +1.678.684.2000 Page 36 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com...
  • Page 37 Register value, all bytes in the register (only one parameter at a time) *Bytes eight through the end of the message will not be returned in case of an error Table 7.3.14 www.RFM.com Technical support +1.678.684.2000 Page 37 of 82 ©...
  • Page 38 Packet RX power in dBm, -128 to 126, or 127 if invalid 0x07 - 0x73 Rx Data Up to 105 bytes of data from Base, up to 109 bytes from Router or Remote Table 7.3.17 www.RFM.com Technical support +1.678.684.2000 Page 38 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com...
  • Page 39 RX power of packet as received by device’s parent in dBm, -128 to 126 or 0x0D Parent RX Power 127 if invalid Table 7.3.21 www.RFM.com Technical support +1.678.684.2000 Page 39 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com...
  • Page 40 DAC0 setting, 0x0000 - 0x0FFF, in Little Endian byte order 0x12 - 0x13 DAC1 Setting DAC1 setting, 0x0000 - 0x0FFF, in Little Endian byte order Table 7.3.22 www.RFM.com Technical support +1.678.684.2000 Page 40 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com...
  • Page 41: Configuration Parameter Registers

    MemorySave command to allow the change to persist through a reset or power cycle. A HopDuration change takes effect immediately. Child radios will re-link following a HopDuration parameter change as they receive the updated hop duration value from the base. www.RFM.com Technical support +1.678.684.2000 Page 41 of 82 ©...
  • Page 42 BaseModeNetID - applicable to the base and routers only, this parameter specifies the network ID of a device’s own network when acting as parent. A child is allowed to join a network when its ParentNwkID www.RFM.com Technical support +1.678.684.2000 Page 42 of 82 ©...
  • Page 43 It auto-clears on a base station and will read back as 0 after it is cleared. On a router or remote, it would do nothing and will not clear except after reset. www.RFM.com Technical support +1.678.684.2000 Page 43 of 82 ©...
  • Page 44: Bank 0X01 - System Settings

    (infinite number of attempts). This mode is intend- ed for point-to-point networks in serial data cable replacement applications where absolutely no packets www.RFM.com Technical support +1.678.684.2000 Page 44 of 82 ©...
  • Page 45: Bank 0X02 - Status Parameters

    LinkDropThreshold - this is the number of consecutive beacons missed by a remote that causes the re- mote to restart a link acquisition search. Please contact RFM technical support before making changes to the parameter.
  • Page 46 = 0.0625. ParentMacAddress - this parameter holds the MAC address of a DNT90’s parent. ModelNumber - this parameter specifies the DNT model, in this case a DNT90. www.RFM.com Technical support +1.678.684.2000 Page 46 of 82 ©...
  • Page 47: Bank 0X03 - Serial And Spi Settings

    SpiRateSel - this parameter sets the SPI master mode clock rate: Setting Mode 0x00 125 kbps 0x01 250 kbps 0x02 500 kbps www.RFM.com Technical support +1.678.684.2000 Page 47 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 48: Bank 0X04 - Host Protocol Settings

    The default is one byte. A transmission is triggered when either the number of bytes reaches MinPacketLength or a gap is detected between consecutive www.RFM.com Technical support +1.678.684.2000 Page 48 of 82 ©...
  • Page 49: Bank 0X05 - I/O Parameters

    AdcSampleIntvl parameter below. EventFlags - used with the automatic I/O reporting feature, this parameter indicates which I/O events have been triggered since the last report (write 0x0000 to reset): www.RFM.com Technical support +1.678.684.2000 Page 49 of 82 ©...
  • Page 50: Bank 0X06 - I/O Settings

    0x06 1VDacOffset 0x02 0x3B 0x0000 0x06 0x3D AdcDiffMode 0x01 0 (single-ended) 0x06 0x3E AdcGainCh0 0x01 0 (gain = 1) www.RFM.com Technical support +1.678.684.2000 Page 50 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 51 SleepMode bit to 1 enables sleep mode configuration of the corresponding GPIO. Setting a GpioSleep- Mode bit to 0 causes the corresponding GPIO to remain configured as in active mode. Note that when the www.RFM.com Technical support +1.678.684.2000 Page 51 of 82 ©...
  • Page 52 GPIO2 edge bit 1 GPIO1 edge bit 0 GPIO0 edge I/O reporting is supported for remotes and routers only, not the base. www.RFM.com Technical support +1.678.684.2000 Page 52 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 53 1.12 = 1.12 * 32768 = 36700.16 or 0x8F5C. ExtDacOffset - this parameter is 2’s complement the offset added to the scaled DAC measurement when the DAC reference is an external voltage. www.RFM.com Technical support +1.678.684.2000 Page 53 of 82 ©...
  • Page 54 2.4 V regardless of the gain setting. AdcDiffScaleFactorCh0/1 and AdcDiffOffsetCh0/1 - these parameters are applied to the raw ADC read- ings in differential mode. These values are not factory calibrated, but can be calibrated by the user. www.RFM.com Technical support +1.678.684.2000 Page 54 of 82 ©...
  • Page 55: Bank 0X0Ff - Special Functions

    0x02 4.8 kbps 0x03 9.6 kbps 0x04 14.4 kbps 0x05 19.2 kbps 0x06 28.8 kbps 0x07 38.4 kbps (default) www.RFM.com Technical support +1.678.684.2000 Page 55 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 56: Protocol-Formatted Message Examples

    0x48 0x65 0x6C 0x6C 0x6F Note that if the remote was in transparent mode, only the “Hello” text would be output. www.RFM.com Technical support +1.678.684.2000 Page 56 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 57: Configuration Message

    Substantial information is returned in the message. The last two byes of the message give the ADC read- ing in Little-Endian format, 7B 08. The ADC reading is thus 0x087B (2171). The RSSI value is the byte www.RFM.com Technical support +1.678.684.2000 Page 57 of 82 ©...
  • Page 58: Event Message

    (SleepMode = 1), a suitable value of the WakeResponseTime parameter should be set to allow the base application to analyze the I/O report and send back a command to the remote as needed. www.RFM.com Technical support +1.678.684.2000 Page 58 of 82 ©...
  • Page 59: Dnt90Dk/Dnt90Adk Developer's Kits

    9600 bps, 8N1. One DNT90P is preconfigured as a base and the other as a remote. Labels on the bottom of the interface boards specify Base or Remote. The defaults can be overridden to test other operating configurations using the DNT90 Demo utility discussed in Section 8.5. www.RFM.com Technical support +1.678.684.2000 Page 59 of 82 ©...
  • Page 60: Developer's Kit Hardware Assembly

    As shown in Figure 8.4.3, confirm there is a jumper on J10 (this jumper can be removed later and a cur- rent meter connected across J10 to measure just the DNT90’s current consumption during operation). J P 1 0 Figure 8.4.3 www.RFM.com Technical support +1.678.684.2000 Page 60 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 61: Dnt90 Utility Program

    DAC and digital I/O). Two serial/USB ports are required for bidirectional serial communications. Section 8.6 below covers using the DNT90 Demo utility program for initial kit operation and familiarization. Section 8.6.1 covers serial message communication and radio configuration. www.RFM.com Technical support +1.678.684.2000 Page 61 of 82 ©...
  • Page 62: Initial Kit Operation

    PC and run. Start the utility program on the PC. The start-up window is shown in Figure 8.6.1. Figure 8.6.1 www.RFM.com Technical support +1.678.684.2000 Page 62 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 63 Radio 1 column and load the MAC Address for the Remote from the heartbeat message. Next press the Start button using the default 1 second Refresh Delay. Figure 8.6.3 www.RFM.com Technical support +1.678.684.2000 Page 63 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 64 MAC address in the MAC Address field under Radio 1 and then press the Enter key to display the Re- mote information. If any difficulty is encountered in setting up the DNT90DK development kit, contact RFM’s module tech- nical support group. The phone number is +1.678.684.2000. Phone support is available from 8:30 AM to 5:30 PM US Eastern Time Zone, Monday through Friday.
  • Page 65: Serial Communication And Radio Configuration

    Data to Transmit is sent once when the Transmit button is clicked. When the Transmit Interval is set to a positive number, Pressing the Transmit button once will cause a transmission each transmit interval (seconds) until the button is pressed again. www.RFM.com Technical support +1.678.684.2000 Page 65 of 82 ©...
  • Page 66 Apply Changes button. Note that data is displayed and entered in Big-Endian order. The utility program automatically reorders multi-byte data to and from Little-Endian order when building or interpreting messages. www.RFM.com Technical support +1.678.684.2000 Page 66 of 82 ©...
  • Page 67 Broadcast Mode, which applies to both the base and the remotes. Figure 8.6.1.4 Figure 8.6.1.5 shows the Status tab contents, corresponding to Bank 2. Note the Status tab contains read-only parameters. www.RFM.com Technical support +1.678.684.2000 Page 67 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 68 Figure 8.6.1.6 Figure 8.6.1.6 shows the Protocol tab contents, corresponding to Bank 4. Transparent serial data com- munication is currently chosen. www.RFM.com Technical support +1.678.684.2000 Page 68 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 69 The type of interrupt trigger is selected from the drop-down boxes to the right of the check boxes. Periodic I/O reporting, reporting interval and enable/disable sleep I/O states and I/O binding can also be configured under this tab. www.RFM.com Technical support +1.678.684.2000 Page 69 of 82 ©...
  • Page 70 DAC channel. The event reporting I/O predelay and alternate GPIO functions can also be set from this tab. The DNT90 Demo Utility File, Options and Help menus are shown in Figure 8.7.8. Figure 8.7.8 www.RFM.com Technical support +1.678.684.2000 Page 70 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 71: Dnt90 Interface Board Features

    JP4 normally have shorting plugs installed as shown in Figure 8.8.2. JP3 connects ADC0 to the yellow potentiometer. Clockwise rotation of the potentiometer increases the voltage. JP4 connects ADC1 to a thermistor temperature sensor. The DNT90 has its own boot loader utility that allows the protocol firm- www.RFM.com Technical support +1.678.684.2000 Page 71 of 82 ©...
  • Page 72 DNT90P interface board includes a 5 V regulator to regulate the input from the 9 V wall-plug power sup- ply. Do not attempt to use the 9 V wall-plug power supply to power the DNT90P directly. The maximum allowed voltage input to the DNT90P is 5.5 V. www.RFM.com Technical support +1.678.684.2000 Page 72 of 82 ©...
  • Page 73: Troubleshooting

    <0 or 1> - For a router, this determines whether the stat option displays data associated with its operation as a base (1) or as a remote (0). www.RFM.com Technical support +1.678.684.2000 Page 73 of 82 ©...
  • Page 74: Appendices

    DNT90CA: transceiver module for solder-pad mounting, includes on-board chip antenna DNT90PA: transceiver module for pin-socket mounting, includes on-board chip antenna 10.2 Technical Support For DNT90 technical support call RFM at (678) 684-2000 between the hours of 8:30 AM and 5:30 PM Eastern Time www.RFM.com Technical support +1.678.684.2000...
  • Page 75: Dnt90/Dnt90A Mechanical Specifications

    ( 2 6 . 4 ) D i m e n s i o n s i n i n c h e s ( m m ) Figure 10.3.2 www.RFM.com Technical support +1.678.684.2000 Page 75 of 82 © 2010-2012 by RF Monolithics, Inc.
  • Page 76 ( 2 4 . 9 ) D i m e n s i o n s a r e i n i n c h e s ( m m ) Figure 10.3.4 www.RFM.com Technical support +1.678.684.2000 Page 76 of 82 ©...
  • Page 77 D i m e n s i o n s i n i n c h e s ( m m ) 0 . 4 5 0 ( 1 1 . 4 ) Figure 10.3.6 www.RFM.com Technical support +1.678.684.2000 Page 77 of 82 ©...
  • Page 78 ( 2 4 . 9 ) D i m e n s i o n s a r e i n i n c h e s ( m m ) Figure 10.3.8 www.RFM.com Technical support +1.678.684.2000 Page 78 of 82 ©...
  • Page 79: Dnt90 Development Board Schematic

    10.4 DNT90 Development Board Schematic www.RFM.com Technical support +1.678.684.2000 Page 79 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 80 Technical support +1.678.684.2000 Page 80 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 81 Technical support +1.678.684.2000 Page 81 of 82 © 2010-2012 by RF Monolithics, Inc. E-mail: tech_sup@rfm.com DNT90 Integration Guide - 05/10/12...
  • Page 82: Warranty

    OR SUPPLYING OF THE GOODS. THE FOREGOING WARRANTY EXTENDS TO BUYER ONLY AND SHALL NOT BE APPLICABLE TO ANY OTHER PERSON OR ENTITY INCLUDING, WITHOUT LIMI- TATION, CUSTOMERS OF BUYERS. Part # M-0090-0002, Rev H www.RFM.com Technical support +1.678.684.2000 Page 82 of 82 © 2010-2012 by RF Monolithics, Inc.

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